Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A kind of image acquisition reminding method that the application relates to and application of installation are in the electronic equipment with image collecting function, can analyze user people's face information of this electronic equipment collection, and then judge whether user's face feature does not meet default Gesture, if do not meet, generate information, so that user can adjust shooting angle according to this information, be able to make the object of the best angle imaging of personage's head portrait in photo.Wherein, this electronic equipment can be the electronic equipments such as desktop computer, notebook, panel computer, mobile phone, intelligent television, intelligent watch, Wearable equipment.
As shown in Figure 1, the process flow diagram of a kind of image acquisition reminding method embodiment 1 that the application provides, comprising:
Step S101: the image information while obtaining shooting preview;
Wherein, user uses electronic equipment to carry out personage while taking, image information during this personage's preview of Real-time Obtaining.
Wherein, this personage's style of shooting comprises: autodyne and normal photographing.
Concrete, in auto heterodyne mode, photographer and one be shooted are same people; In normal photographing mode, the non-same people of board setting and one be shooted.
Concrete, this image information is the information that includes task head portrait part, this image information can embody the face feature of people's face, this face feature is specifically as follows the feature of the facial dependency structures such as face, as: all or part of in hair line, eyebrow, eyes, nose, face, ear etc.
Step S102: according to default analysis condition, described image information is analyzed, obtained the face feature information of people's face in image;
Wherein, in electronic equipment, be preset with the analysis condition that image is analyzed, for the pre-review information obtaining is analyzed, can obtain the face feature information of the people's face in this image.
Concrete, this face feature information can comprise: the relevant positional informations of various Yu Ren face's face such as difference in height of the position of hair line position, eyes, the spacing between eyes, the difference in height of two eyes, the position of the position of eyebrow, face, the position of the position of chin, ear, two ears.
Step S103: whether the face feature information that judges people's face in described image meets default distribution rule, and generates judged result;
Wherein, described distribution rule characterizes described people's appearance for the preset posture of described electronic equipment.
In the present embodiment, preset posture schematic diagram as shown in Figure 2, the attitude that the face that this preset posture is one be shooted takes over against electronic equipment, the face feature information obtaining should be positioned at sustained height and symmetry for the facial organ site of symmetry, and each face organ's structure meets gold point distribution occasion.
It should be noted that, gold point can be used as judgement according to " three five, the front yards " that everybody thinks conventionally, and (width of eyes, should be 3/10 of same level face width; Chin length should be 1/5 of face length; Eyeball center, to the distance of eyebrow bottom, should be 1/10 of face length; Eyeball should be 1/14 of face length; The surface area of nose, is less than 5/100 of face's total area; Desirable face width should be 1/2 of same level face width.) concrete people's face can not meet data completely, approximate approaching just can.
Concrete, whether the people's face face feature information in the image that discriminatory analysis obtains, meet this default distribution rule, if do not met, the face that can judge this one be shooted does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo.
Step S104: when described judged result represents that the face feature information of described image does not meet default distribution rule, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information.
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, this one be shooted's face does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo, need to adjust one be shooted's facial pose, so that the best angle imaging of its head portrait in photo.
Concrete, according to this default distribution rule and this, obtain the face feature information in image, generation is for information that in this image, one be shooted's face feature is adjusted, and then can according to this information, adjust one be shooted's shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
For example, when this one be shooted's symmetrical face organ (as eyes) position is not positioned at sustained height, may represent this one be shooted's torticollis, generate the information that torticollis appears in prompting user, or how direct generation prompting user adjusts the information of head state etc.
It should be noted that, the face that default distribution rule in the present embodiment is one be shooted is over against electronic equipment, should over against can be for people visual over against, the best angle imaging of the head portrait that can guarantee one be shooted in photo, and not require absolute over against.
To sum up, a kind of image acquisition reminding method that the present embodiment provides, comprise: according to default analysis condition, preview image information is analyzed, obtain the face feature information of people's face in image, and judge whether this face feature information meets default distribution rule, this distribution rule characterizes described people's appearance for the preset posture of described electronic equipment; When this face feature information does not meet this default distribution rule, the face that shows one be shooted do not meet over against scope, according to the face feature information of this image and the relativeness of this distribution rule, generate information, and export this information, so that photographer learns in time current one be shooted's face feature and does not meet the demands, and can, according to this information adjustment shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
Wherein, in electronic equipment, be preset with the storage area of store image information.
As shown in Figure 3, the process flow diagram of a kind of image acquisition reminding method embodiment 2 that the application provides, comprising:
Step S301: receive in real time the image information that the imageing sensor of described electronic equipment collects;
Wherein, in this electronic equipment, be provided with imageing sensor, this imageing sensor is for the object of shooting area is carried out to image acquisition, and synthetic image information.
Concrete, receive in real time the image information that this imageing sensor gathers, in this image information, carry the much informations such as one be shooted's body information and face feature information.
Step S302: described in buffer memory, image information is to default storage area;
Wherein, in electronic equipment, there is storage area, for the image information of imageing sensor transmission is carried out to buffer memory, to operate accordingly according to this image information, as analyze this image information, to obtain the face feature information of people's face in image.
In concrete enforcement, the object of this image information of buffer memory is also to take after action when photographer carries out, according to take action can be directly the cache image consistent with this shooting actuation time store, complete once shooting and move.
Step S303: obtain described image information from described default storage area;
Wherein, from the storage area of this image information of buffer memory, obtain this image information, and this figure information is used for to follow-up analytical procedure.
It should be noted that, in actual enforcement, the image information of this buffer memory also can be compared in real time with history image information, if there is the situation that the two occurs larger variation, while changing for one be shooted's character positions, personage's size, re-execute step S304, the situation that again meets default distribution rule according to the face feature information demonstration of image generates prompting accordingly.
In actual enforcement, the storage area of this cache image information can be electronic equipment internal memory RAM (random access memory, random access memory).
Step S304: according to default analysis condition, described image information is analyzed, obtained the face feature information of people's face in image;
Step S305: whether the face feature information that judges people's face in described image meets default distribution rule, and generates judged result, wherein, described distribution rule characterizes described people's appearance for the preset posture of described electronic equipment;
Step S306: when described judged result represents that the face feature information of described image does not meet default distribution rule, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information.
Wherein, step S304-306 is consistent with the step S102-104 in embodiment 1, and the present embodiment repeats no more.
To sum up, in a kind of image acquisition reminding method that the present embodiment provides, the image information while obtaining shooting preview specifically comprises: receive in real time the image information that the imageing sensor of electronic equipment collects; Described in buffer memory, image information is to default storage area; From described default storage area, obtain described image information.The image information of imageing sensor collection is carried out to buffer memory, and carry out follow-up analysis according to the image information of buffer memory, in this process, the image information that imageing sensor is collected is carried out buffer memory, can be for the face feature information analysis step of people's face in follow-up image, also can be photographer and carry out while taking action, real-time image is provided, complete shooting.
As shown in Figure 4, the process flow diagram of a kind of image acquisition reminding method embodiment 3 that the application provides, comprising:
Step S401: the image information while obtaining shooting preview;
Wherein, step S401 is consistent with the step S101 in embodiment 1, and the present embodiment repeats no more.
Step S402: according to default recognition rule, described image information is identified, obtained the people's face information in described image;
Wherein, in electronic equipment, be preset with the recognition rule that carries out recognition of face in image.
Concrete, according to this recognition rule, the people's face in this image information is analyzed, obtain people's face information corresponding in this image information.
Concrete, this people's face information refers to people's face mask information.
Wherein, people's face information behaviour face mask that identification obtains, the profile of people's face in definite this image is further identified the face feature information in people's face according to the profile information of this people's face in follow-up step S403 again.
Step S403: analyze described people's face information, obtain the face feature information of people's face in described image;
It should be noted that, because the pattern feature comprising in facial image is very abundant, as histogram feature, color characteristic, template characteristic, architectural feature and Haar (Ha Er) feature etc.
Therefore, can utilize the recognizer of above-mentioned feature, image information is identified, obtain the people's face face feature information in this image.
Concrete, according to the shape of human face and position, calculate face feature position relationship ratio data, calibrate position and the size of people's face.
Wherein, the face feature information of people's face that in the present embodiment, this obtains is specially identification people face organ site information, comprises hair line, eyebrow, eyes, nose, face, ear particular location.To judge whether to meet default distribution rule according to this people's face feature information in subsequent step.
It should be noted that, first determine facial contour, and then by default recognizer, the face feature information in people's face is analyzed, obtain the position relationship of face's organ of one be shooted, for whether follow-up definite face feature information meets default distribution rule, provide foundation.
And, adopt the order of progressively confirming, first determine facial contour, then by default recognizer, the position of the face's organ in this face mask is identified, with respect to directly determine the mode of face's organ from image information integral body, reduce the scope of carrying out the image recognition while determining of face's organ site, reduced data processing amount, accelerated identification progress.
Step S404: whether the face feature information that judges people's face in described image meets default distribution rule, and generates judged result;
Step S405: when described judged result represents that the face feature information of described image does not meet default distribution rule, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information.
Wherein, step S404-405 is consistent with the step S103-104 in embodiment 1, and the present embodiment repeats no more.
To sum up, in a kind of image acquisition reminding method providing in the present embodiment, the analysis condition that this foundation is default, described image information is analyzed, the face feature information that obtains people's face in image specifically comprises: according to default recognition rule, described image information is identified, obtained the people's face information in described image; Analyze described people's face information, obtain the face feature information of people's face in described image.Adopt the method, determine facial contour, then by default recognizer, the position of the face's organ in this face mask is identified, with respect to directly determine the mode of face's organ from image information integral body, reduced the scope of carrying out the image recognition while determining of face's organ site, reduce data processing amount, accelerated identification progress.
Wherein, according to face's organ of one be shooted, can judge whether its face takes over against electronic equipment.
As shown in Figure 5, the process flow diagram of a kind of image acquisition reminding method embodiment 4 that the application provides, comprising:
Step S501: the image information while obtaining shooting preview;
Step S502: according to default recognition rule, described image information is identified, obtained the people's face information in described image;
Step S503: analyze described people's face information, obtain the face feature information of people's face in described image;
Wherein, step S501-503 is consistent with the step S301-303 in embodiment 3, and the present embodiment repeats no more.
Step S504: according to the first default computation rule, described face feature information is calculated, obtained the face feature position relationship ratio value of described people's face;
Wherein, when one be shooted's face takes over against electronic equipment, in the image that image collecting device collects, the position relationship of each face feature information becomes certain ratio value.
Wherein, in the image this analysis being obtained according to the first default computation rule, the face feature information of people's face is calculated, and is specially the relation between this face feature (being face's organ) position is calculated.
For example, face is long and the ratio value of chin; The ratio value of eye widths and face's width and for example, or, the ratio value of distance between each face's organs such as ratio value of distance between two ears and neck.
In concrete enforcement, can only to several ratio values representative in face feature position relationship, calculate, without the ratio value of all face feature position relationships is calculated, reduce data processing amount.
Step S505: judge whether described face feature position relationship ratio value meets default ratio range;
Wherein, be preset with the ratio range corresponding with the face feature position relationship ratio value calculating in step S504.
Concrete, according to the face feature object comprising in this face feature position relationship, as the ratio value of face length with chin, obtain its corresponding ratio range, as 0.18-0.22.
Concrete, the default ratio range that each ratio value calculating in step S504 is corresponding with it compares.
Wherein, if when face feature position relationship ratio value meets default ratio range, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.
In concrete enforcement, when one be shooted faces upward head or bows, the ratio in image on the face feature information longitudinal direction of people's face changes, and ratio value as long in ratio value, chin and the face of forehead and face length changes; During as one be shooted's rotary head, the ratio value of two width changes; And as one be shooted's torticollis, also can there is certain variation in the position ratio of eyebrow, eyes, ear etc.
Step S506: when face feature position relationship ratio value does not meet default ratio range, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information.
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, the face that characterizes this one be shooted does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo, need to adjust one be shooted's facial pose, so that the best angle imaging of its head portrait in photo.
So the relativeness between the face feature information in the image obtaining according to this analysis and this default distribution rule, generates information.
Concrete, when the First Characteristic that described face feature position relationship ratio value is face and the position relationship ratio value of Second Characteristic, step S506 specifically comprises: when described face feature position relationship ratio is greater than the higher limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generate the information of deflection First Characteristic direction; When described face feature position relationship ratio is less than the lower limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generate the information of deflection Second Characteristic direction.
For example, when the ratio value of this forehead and face length is greater than the higher limit of default ratio range, represent that one be shooted bows, now need to generate the information that this one be shooted of prompting need to come back, or generate the current information in low head status of this user of prompting.
Concrete, nose-down attitude schematic diagram as shown in Figure 6, in one be shooted's image, the long ratio value of forehead and face, much larger than the higher limit of ratio range, generates the information of pointing out this one be shooted to come back, this information direction of motion as shown by arrows in FIG..
Concrete, cocked-up attitude schematic diagram as shown in Figure 7, in one be shooted's image, the long ratio value of forehead and face is less than the lower limit of ratio range, generates the information of pointing out this one be shooted to bow, this information direction of motion as shown by arrows in FIG..
Also have, during as one be shooted's rotary head, in image, the ratio value of the ratio value of two, ear and eye distance etc. all can change.
Concrete, an attitude schematic diagram of turning right as shown in Figure 8, one be shooted is when rotary head attitude (side face), in one be shooted's image, the ratio value of ear and canthus distance changes, in Fig. 8, the ratio of one be shooted's auris dextra and right eye angular distance value and left ear and left eye angular distance value reduces, be less than the lower limit of ratio range, generate the information that this one be shooted of prompting needs rotary head, this information direction of motion as shown by arrows in FIG..
Certainly, in actual enforcement, generally can judge according at least two ratio value data, consider current one be shooted's facial pose, guarantee to improve the accuracy of the information generating.
Concrete, the type of information, sets according to actual conditions, in the present embodiment, does not limit.
It should be noted that, be that prompting mode is in image, to increase the mode that information is carried out image demonstration in the present embodiment, in actual enforcement, also can be voice message, or voice message simultaneously and image display reminding, in mode the application of prompting, do not limit.
To sum up, in a kind of image acquisition reminding method providing in the present embodiment, whether the face feature information that judges people's face in described image meets default distribution rule comprises: according to the first default computation rule, described face feature information is calculated, obtained the face feature position relationship ratio value of described people's face; Judge whether described face feature position relationship ratio value meets default ratio range; If met, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.Wherein, when described face feature position relationship ratio is greater than the higher limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generate the information of deflection First Characteristic direction; When described face feature position relationship ratio is less than the lower limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generate the information of deflection Second Characteristic direction.According to this information, so that photographer learns current one be shooted's face feature in time, do not meet the demands, and can according to this information, adjust one be shooted's shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
Wherein, according to one be shooted's symmetrical face organ, can judge targetedly whether one be shooted the situation of rotary head or torticollis occurs.
As shown in Figure 9, the process flow diagram of a kind of image acquisition reminding method embodiment 5 that the application provides, comprising:
Step S901: the image information while obtaining shooting preview;
Step S902: according to default recognition rule, described image information is identified, obtained the people's face information in described image;
Step S903: analyze described people's face information, obtain the face feature information of people's face in described image;
Wherein, step S901-903 is consistent with the step S301-303 in embodiment 3, and the present embodiment repeats no more.
Step S904: according to the second default computation rule, described face feature information is calculated, obtained the relative position relation difference between each symmetrical face feature in described people's face;
Wherein, when one be shooted's face takes over against electronic equipment, in the image that image collecting device collects, between each symmetrical face's organ, relative position is fixed.
Wherein, in the image this analysis being obtained according to the second default computation rule, the face feature information of people's face is calculated, and is specially symmetrical face feature (being face's organ) relative position relation is calculated.
For example, when one be shooted's face takes over against electronic equipment, the height of two eyebrows is consistent, and the height of ear coboundary (or lower limb) is consistent, and two ears divide the distance that is clipped to the canthus being adjacent to equate.
For example, the result calculating can be the difference in height of two eyebrows, or the difference in height of ear coboundary, or ear is to the distance at canthus etc.
In concrete enforcement, can only to one or several ratio values representative in face feature position relationship, calculate, without the ratio value of all face feature position relationships is calculated, reduce data processing amount.
Step S905: judge whether described face feature relative position relation difference meets default error range;
Wherein, be preset with the error range corresponding with the face feature position relationship difference of calculating in step S904.
Concrete, according to the face feature object comprising in this face feature position relationship, as the distance of ear to canthus, obtain its corresponding error range, as ± 0.5.
Wherein, this error range is to obtain according to one be shooted's ratio of imaging in image, and one be shooted's imaging in image is larger, and this error range can be larger, and one be shooted's imaging in image is less, and this error range can be less.
Concrete, each relative position relation difference default seek scope corresponding with it calculating in step S904 compared.
Wherein, when described face feature relative position relation difference meets default error range, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.
Step S906: when described judged result represents that the face feature information of described image does not meet default distribution rule, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information.
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, the face that characterizes this one be shooted does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo, need to adjust one be shooted's facial pose, so that the best angle imaging of its head portrait in photo.
So the relativeness between the face feature information in the image obtaining according to this analysis and this default distribution rule, generates information.
Concrete, the 3rd feature and the 4th is characterized as symmetrical face feature, when described face feature position relationship ratio value the 3rd feature that is face and the relative position relation difference of the 4th feature, step S906 specifically comprises: when the relative position relation difference of described the 3rd feature and the 4th feature is greater than the higher limit of described default error range, according to the relative position of the 3rd feature and the 4th feature, generate the information of deflection the 3rd characteristic direction; When the relative position relation difference of described the 3rd feature and the 4th feature is less than the lower limit of described default error range, according to the relative position of the 3rd feature and the 4th feature, generate the information of deflection the 4th characteristic direction.
For example, the distance value that ear is right ear to the distance value at canthus and left side ear to canthus to the distance difference at canthus poor.
The schematic diagram of rotary head attitude as shown in Figure 8, one be shooted is when turning right an attitude (side face), when two ears are less than default difference range lower limit to the distance difference at canthus, represent one be shooted's rotary head to the right, now need to generate the information of this one be shooted's needs rotary head left of prompting, this information direction of motion as shown by arrows in FIG..
An attitude schematic diagram as shown in figure 10 turns left, one be shooted is when turning left an attitude (side face), when two ears are greater than default difference range higher limit to the distance difference at canthus, represent one be shooted's rotary head left, now need to generate the information of this one be shooted's needs rotary head to the right of prompting, this information direction of motion as shown by arrows in FIG..
For example, the difference in height of two eyebrows is the difference of left eyebrow height and right eyebrow height.
Torticollis attitude schematic diagram left as shown in figure 11, in one be shooted's image, eyebrow difference in height is less than the lower limit of ratio range, represent one be shooted's torticollis left, generate the information that this one be shooted of prompting need to raise left side face, this information direction of motion as shown by arrows in FIG..
Torticollis attitude schematic diagram to the right as shown in figure 12, in one be shooted's image, eyebrow difference in height is greater than the higher limit of ratio range, represent one be shooted's torticollis to the right, generate the information that this one be shooted of prompting need to raise right side face, this information direction of motion as shown by arrows in FIG..
Certainly, in actual enforcement, generally can judge according at least two ratio value data, consider current one be shooted's facial pose, guarantee to improve the accuracy of the information generating.
Concrete, the type of information, sets according to actual conditions, in the present embodiment, does not limit.
It should be noted that, be that prompting mode is in image, to increase the mode that information is carried out image demonstration in the present embodiment, in actual enforcement, also can be voice message, or voice message simultaneously and image display reminding, in mode the application of prompting, do not limit.
To sum up, in a kind of image acquisition reminding method providing in the present embodiment, whether the face feature information that judges people's face in image meets default distribution rule comprises: according to the second default computation rule, face feature information is calculated, obtained the relative position relation difference between each symmetrical face feature in people's face; Judge whether face feature relative position relation difference meets default error range; If met, in image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in image.Wherein, the 3rd feature and the 4th is characterized as symmetrical face feature, relative position relation difference between symmetrical face feature is the relative position relation difference of the 3rd feature and the 4th feature, when the relative position relation difference of the 3rd feature and the 4th feature is greater than the higher limit of default error range, according to the relative position of the 3rd feature and the 4th feature, generate the information of deflection the 3rd characteristic direction; When the relative position relation difference of the 3rd feature and the 4th feature is less than the lower limit of default error range, according to the relative position of the 3rd feature and the 4th feature, generate the information of deflection the 4th characteristic direction.According to this information, so that photographer learns current one be shooted's face feature in time, do not meet the demands, and can according to this information, adjust one be shooted's shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
As shown in figure 13, the process flow diagram of a kind of image acquisition reminding method embodiment 6 that the application provides, comprising:
Step S1301: the image information while obtaining shooting preview;
Step S1302: according to default analysis condition, described image information is analyzed, obtained the face feature information of people's face in image;
Step S1303: whether the face feature information that judges people's face in described image meets default distribution rule, and generates judged result, wherein, described distribution rule characterizes described people's appearance for the preset posture of described electronic equipment;
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, execution step S1304; Otherwise, execution step S1305.
Step S1304: according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information;
Wherein, step S1301-1304 is consistent with the step S101-104 in embodiment 1, and the present embodiment repeats no more.
Step S1305: stop exporting described information.
Wherein, when described judged result represents that the face feature information of described image meets default distribution rule, this one be shooted's face is current takes over against electronic equipment, and personage's head portrait is best angle imaging in photo so, without adjusting, stop exporting this information.
Concrete, in step S1303, carry out when judging first, this judged result represents that the face feature information of described image meets default distribution rule, without execution step S1304, needn't generate information, and history is judged as and need to performs step S1304 in this step S1303, according to information, adjusting after one be shooted's shooting angle, when in its image that Real-time Collection obtains, face feature information meets default distribution rule, execution step S1305, stop exporting this information, to reduce because information is exported shared information transfer channel and the required calculating of information generated etc., reduce the power consumption of electronic equipment.
To sum up, a kind of image acquisition reminding method providing in the present embodiment, also comprise: when described judged result represents that the face feature information of described image meets default distribution rule, stop exporting described information, to reduce because information is exported shared information transfer channel and the required calculating of information generated etc., reduce the power consumption of electronic equipment.
In the embodiment that the invention described above provides, describe a kind of image acquisition reminding method in detail, for image acquisition reminding method of the present invention, can adopt the image acquisition suggestion device of various ways to realize, therefore the present invention also provides a kind of image acquisition suggestion device, provides specific embodiment below and is elaborated.
As shown in figure 14, the structural representation of a kind of image acquisition suggestion device embodiment 1 that the application provides, comprising: acquisition module 1401, analysis module 1402, judge module 1403 and reminding module 1404;
Wherein, acquisition module 1401, the image information when obtaining shooting preview;
Wherein, user uses electronic equipment to carry out personage while taking, image information during this personage's preview of acquisition module 1401 Real-time Obtainings.
Wherein, this personage's style of shooting comprises: autodyne and normal photographing.Concrete, in auto heterodyne mode, photographer and one be shooted are same people; In normal photographing mode, the non-same people of board setting and one be shooted.
Concrete, this image information is the information that includes task head portrait part, this image information can embody the face feature of people's face, this face feature is specifically as follows the feature of the facial dependency structures such as face, as: all or part of in hair line, eyebrow, eyes, nose, face, ear etc.
Wherein, this acquisition module comprises: receiving element, buffer unit and receiving element;
This receiving element, the image information collecting for receiving in real time the imageing sensor of described electronic equipment; This buffer unit, for the extremely default storage area of image information described in buffer memory; This receiving element, for obtaining described image information from described default storage area.
Wherein, in this electronic equipment, be provided with imageing sensor, this imageing sensor is for the object of shooting area is carried out to image acquisition, and synthetic image information.
Concrete, receive in real time the image information that this imageing sensor gathers, in this image information, carry the much informations such as one be shooted's body information and face feature information.
Wherein, in electronic equipment, there is storage area, for the image information of imageing sensor transmission is carried out to buffer memory, to operate accordingly according to this image information, as analyze this image information, to obtain the face feature information of people's face in image.
In concrete enforcement, the object of this image information of buffer memory is also to take after action when photographer carries out, according to take action can be directly the cache image consistent with this shooting actuation time store, complete once shooting and move.
Wherein, from the storage area of this image information of buffer memory, obtain this image information, and this figure information is used for to follow-up analytical procedure.
It should be noted that, in actual enforcement, the image information of this buffer memory also can be compared in real time with history image information, if there is the situation that the two occurs larger variation, while changing for one be shooted's character positions, personage's size, again trigger analysis module 1402, the situation that again meets default distribution rule according to the face feature information demonstration of image generates prompting accordingly.
In actual enforcement, the storage area of this cache image information can be electronic equipment internal memory RAM.
Wherein, analysis module 1402, for the analysis condition according to default, analyzes described image information, obtains the face feature information of people's face in image;
Wherein, be preset with the analysis condition that image is analyzed in electronic equipment, 1402 pairs of pre-review informations that obtain of analysis module are analyzed, and can obtain the face feature information of the people's face in this image.
Concrete, this face feature information can comprise: the relevant positional informations of various Yu Ren face's face such as difference in height of the position of hair line position, eyes, the spacing between eyes, the difference in height of two eyes, the position of the position of eyebrow, face, the position of the position of chin, ear, two ears.
Wherein, judge module 1403, for judging whether the face feature information of described image people face meets default distribution rule, and generates judged result;
Wherein, described distribution rule characterizes described people's appearance for the preset posture of described electronic equipment.
In the present embodiment, preset posture schematic diagram as shown in Figure 2, the attitude that the face that this preset posture is one be shooted takes over against electronic equipment, the face feature information obtaining should be positioned at sustained height and symmetry for the facial organ site of symmetry, and each face organ's structure meets gold point distribution occasion.
It should be noted that, gold point can be used as judgement according to " three five, the front yards " that everybody thinks conventionally, and (width of eyes, should be 3/10 of same level face width; Chin length should be 1/5 of face length; Eyeball center, to the distance of eyebrow bottom, should be 1/10 of face length; Eyeball should be 1/14 of face length; The surface area of nose, is less than 5/100 of face's total area; Desirable face width should be 1/2 of same level face width.) concrete people's face can not meet data completely, approximate approaching just can.
Concrete, people's face face feature information in the image that judge module 1403 discriminatory analysises obtain, whether meet this default distribution rule, if do not met, the face that can judge this one be shooted does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo.
Wherein, reminding module 1404, for when described judged result represents that the face feature information of described image does not meet default distribution rule, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information.
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, this one be shooted's face does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo, need to adjust one be shooted's facial pose, so that the best angle imaging of its head portrait in photo.
Concrete, reminding module 1404 obtains the face feature information in image according to this default distribution rule and this, generation is for information that in this image, one be shooted's face feature is adjusted, and then can according to this information, adjust one be shooted's shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
For example, when this one be shooted's symmetrical face organ (as eyes) position is not positioned at sustained height, may represent this one be shooted's torticollis, generate the information that torticollis appears in prompting user, or how direct generation prompting user adjusts the information of head state etc.
It should be noted that, the face that default distribution rule in the present embodiment is one be shooted is over against electronic equipment, should over against can be for people visual over against, the best angle imaging of the head portrait that can guarantee one be shooted in photo, and not require absolute over against.
Wherein, when described judged result represents that the face feature information of described image meets default distribution rule, this one be shooted's face is current takes over against electronic equipment, personage's head portrait is best angle imaging in photo so, without adjusting, reminding module 1404 stops exporting this information.
Concrete, in judge module 1403, carry out when judging first, this judged result represents that the face feature information of described image meets default distribution rule, without triggering reminding module 1404, needn't generate information, and history is judged as and need to triggers reminding module 1404 in this judge module 1403, according to information, adjusting after one be shooted's shooting angle, when in its image that Real-time Collection obtains, face feature information meets default distribution rule, reminding module 1404 stops exporting this information, to reduce because information is exported shared information transfer channel and the required calculating of information generated etc., reduce the power consumption of electronic equipment.
To sum up, a kind of image acquisition suggestion device that the present embodiment provides, comprising: acquisition module, the image information when obtaining shooting preview; Analysis module, for the analysis condition according to default, analyzes described image information, obtains the face feature information of people's face in image; Judge module, for judging whether the face feature information of described image people face meets default distribution rule, and generates judged result, and wherein, described distribution rule characterizes described people's appearance for the attitude of described electronic equipment; Reminding module, for when described judged result represents that the face feature information of described image does not meet default distribution rule, according to the face feature information of described image and the relativeness of described distribution rule, generate information and export described information, so that photographer learns in time current one be shooted's face feature and does not meet the demands, and can adjust shooting angle according to this information, be able to make the object of the best angle imaging of personage's head portrait in photo.
As shown in figure 15, the structural representation of a kind of image acquisition suggestion device embodiment 2 that the application provides, comprising: acquisition module 1501, analysis module 1502, judge module 1503 and reminding module 1504;
Wherein, analysis module 1502 comprises: recognition unit 1505 and analytic unit 1506;
Wherein, acquisition module 1501, judge module 1503 and reminding module 1504 are consistent with the corresponding construction function in embodiment 1, and the present embodiment repeats no more.
Wherein, recognition unit 1505, for the recognition rule according to default, identifies described image information, obtains the people's face information in described image;
Wherein, in electronic equipment, be preset with the recognition rule that carries out recognition of face in image.
Concrete, recognition unit 1505, according to this recognition rule, is analyzed the people's face in this image information, obtains people's face information corresponding in this image information.
Concrete, this people's face information refers to people's face mask information.
Wherein, people's face information behaviour face mask that identification obtains, the profile of people's face in definite this image is further analyzed identification to the face feature information in people's face again according to the profile information of this people's face in analytic unit 1506.
Wherein, analytic unit 1506, for analyzing described people's face information, obtains the face feature information of people's face in described image.
It should be noted that, because the pattern feature comprising in facial image is very abundant, as histogram feature, color characteristic, template characteristic, architectural feature and Haar feature etc.
Therefore, analytic unit 1506 can utilize the recognizer of above-mentioned feature, and image information is identified, and obtains the people's face face feature information in this image.
Concrete, according to the shape of human face and position, calculate face feature position relationship ratio data, calibrate position and the size of people's face.
Wherein, the face feature information of people's face that in the present embodiment, this obtains is specially identification people face organ site information, comprises hair line, eyebrow, eyes, nose, face, ear particular location.To judge whether to meet default distribution rule according to this people's face feature information in subsequent step.
It should be noted that, first determine facial contour, and then by default recognizer, the face feature information in people's face is analyzed, obtain the position relationship of face's organ of one be shooted, for whether follow-up definite face feature information meets default distribution rule, provide foundation.
And, adopt the order of progressively confirming, first determine facial contour, then by default recognizer, the position of the face's organ in this face mask is identified, with respect to directly determine the mode of face's organ from image information integral body, reduce the scope of carrying out the image recognition while determining of face's organ site, reduced data processing amount, accelerated identification progress.
To sum up, in a kind of image acquisition suggestion device providing in the present embodiment, analysis module comprises: recognition unit, for the recognition rule according to default, described image information is identified, and obtain the people's face information in described image; Analytic unit, for analyzing described people's face information, obtains the face feature information of people's face in described image.Adopt this device, determine after facial contour, by default recognizer, the position of the face's organ in this face mask is identified, with respect to directly determine the mode of face's organ from image information integral body, reduced the scope of carrying out the image recognition while determining of face's organ site, reduce data processing amount, accelerated identification progress.
Wherein, according to face's organ of one be shooted, can judge whether its face takes over against electronic equipment.
As shown in figure 16, the structural representation of a kind of image acquisition suggestion device embodiment 3 that the application provides, comprising: acquisition module 1601, analysis module 1602, judge module 1603 and reminding module 1604;
Wherein, judge module 1603 comprises: the first computing unit 1605 and the first judging unit 1606;
Wherein, when the position relationship ratio value of the face feature position relationship ratio value First Characteristic that is face and Second Characteristic, reminding module 1604 specifically comprises the first Tip element 1607 and the second Tip element 1608.
Wherein, acquisition module 1601, analysis module 1602 are consistent with the corresponding construction function in embodiment 1, and the present embodiment repeats no more.
Wherein, the first computing unit 1605, calculates described face feature information for the first computation rule according to default, obtains the face feature position relationship ratio value of described people's face;
Wherein, when one be shooted's face takes over against electronic equipment, in the image that image collecting device collects, the position relationship of each face feature information becomes certain ratio value.
Wherein, in the image that the first computing unit 1605 obtains this analysis according to the first default computation rule, the face feature information of people's face is calculated, and is specially the relation between this face feature (being face's organ) position is calculated.
For example, face is long and the ratio value of chin; The ratio value of eye widths and face's width and for example, or, the ratio value of distance between each face's organs such as ratio value of distance between two ears and neck.
In concrete enforcement, the first computing unit 1605 can only calculate several ratio values representative in face feature position relationship, without the ratio value of all face feature position relationships is calculated, reduces data processing amount.
Wherein, the first judging unit 1606, for judging whether described face feature position relationship ratio value meets default ratio range; If met, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.
Wherein, be preset with the ratio range corresponding with the face feature position relationship ratio value calculating in the first computing unit 1605.
Concrete, according to the face feature object comprising in this face feature position relationship (as the ratio value of face length with chin), obtain its corresponding ratio range (as 0.18-0.22).
Concrete, the default ratio range that each ratio value calculating in the first computing unit 1605 is corresponding with it compares.
Wherein, if when face feature position relationship ratio value meets default ratio range, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.
In concrete enforcement, when one be shooted faces upward head or bows, the ratio in image on the face feature information longitudinal direction of people's face changes, and ratio value as long in ratio value, chin and the face of forehead and face length changes; During as one be shooted's rotary head, the ratio value of two width changes; And as one be shooted's torticollis, also can there is certain variation in the position ratio of eyebrow, eyes, ear etc.
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, the face that characterizes this one be shooted does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo, need to adjust one be shooted's facial pose, so that the best angle imaging of its head portrait in photo.
So the relativeness between the face feature information in the image obtaining according to this analysis and this default distribution rule, generates information.
Concrete, when the First Characteristic that described face feature position relationship ratio value is face and the position relationship ratio value of Second Characteristic, reminding module 1604 specifically comprises the first Tip element 1607 and the second Tip element 1608.
Wherein, the first Tip element 1607, for when described face feature position relationship ratio is greater than the higher limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generates the information of deflection First Characteristic direction; The second Tip element 1608, for when described face feature position relationship ratio is less than the lower limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generates the information of deflection Second Characteristic direction.
For example, when the ratio value of this forehead and face length is greater than the higher limit of default ratio range, represent that one be shooted bows, now need to generate the information that this one be shooted of prompting need to come back, or generate the current information in low head status of this user of prompting.
Concrete, nose-down attitude schematic diagram as shown in Figure 6, in one be shooted's image, the long ratio value of forehead and face, much larger than the higher limit of ratio range, generates the information of pointing out this one be shooted to come back, this information direction of motion as shown by arrows in FIG..
Concrete, cocked-up attitude schematic diagram as shown in Figure 7, in one be shooted's image, the long ratio value of forehead and face is less than the lower limit of ratio range, generates the information of pointing out this one be shooted to bow, this information direction of motion as shown by arrows in FIG..
Also have, during as one be shooted's rotary head, in image, the ratio value of the ratio value of two, ear and eye distance etc. all can change.
Concrete, the schematic diagram of rotary head attitude as shown in Figure 8, one be shooted is when rotary head attitude (side face), in one be shooted's image, the ratio value of ear and canthus distance changes, in Fig. 8, the ratio of one be shooted's auris dextra and right eye angular distance value and left ear and left eye angular distance value reduces, be less than the lower limit of ratio range, generate the information that this one be shooted of prompting needs rotary head, this information direction of motion as shown by arrows in FIG..
Certainly, in actual enforcement, generally can judge according at least two ratio value data, consider current one be shooted's facial pose, guarantee to improve the accuracy of the information generating.
Concrete, the type of information, sets according to actual conditions, in the present embodiment, does not limit.
It should be noted that, be that prompting mode is in image, to increase the mode that information is carried out image demonstration in the present embodiment, in actual enforcement, also can be voice message, or voice message simultaneously and image display reminding, in mode the application of prompting, do not limit.
To sum up, in a kind of image acquisition suggestion device providing in the present embodiment, judge module comprises: the first computing unit, for the first computation rule according to default, described face feature information is calculated, and obtain the face feature position relationship ratio value of described people's face; The first judging unit, for judging whether described face feature position relationship ratio value meets default ratio range; If met, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.Wherein, reminding module comprises: the first Tip element, for when described face feature position relationship ratio is greater than the higher limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generate the information of deflection First Characteristic direction; The second Tip element, for when described face feature position relationship ratio is less than the lower limit of described default ratio range, according to the relative position of First Characteristic and Second Characteristic, generates the information of deflection Second Characteristic direction.According to this information, so that photographer learns current one be shooted's face feature in time, do not meet the demands, and can according to this information, adjust one be shooted's shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
Wherein, according to one be shooted's symmetrical face organ, can judge targetedly whether one be shooted the situation of rotary head or torticollis occurs.
As shown in figure 17, the structural representation of a kind of image acquisition suggestion device embodiment 4 that the application provides, comprising: acquisition module 1701, analysis module 1702, judge module 1703 and reminding module 1704;
Wherein, judge module 1703 comprises: the second computing unit 1705 and the second judging unit 1706;
Wherein, when the position relationship ratio value of the face feature position relationship ratio value First Characteristic that is face and Second Characteristic, reminding module 1704 specifically comprises the 3rd Tip element 1707 and the 4th Tip element 1708.
Wherein, acquisition module 1701, analysis module 1702 are consistent with the corresponding construction function in embodiment 1, and the present embodiment repeats no more.
Wherein, the second computing unit 1705, calculates described face feature information for the second computation rule according to default, obtains the relative position relation difference between each symmetrical face feature in described people's face;
Wherein, when one be shooted's face takes over against electronic equipment, in the image that image collecting device collects, between each symmetrical face's organ, relative position is fixed.
Wherein, in the image that the second computing unit 1705 obtains this analysis according to the second default computation rule, the face feature information of people's face is calculated, and is specially symmetrical face feature (being face's organ) relative position relation is calculated.
For example, when one be shooted's face takes over against electronic equipment, the height of two eyebrows is consistent, and the height of ear coboundary (or lower limb) is consistent, and two ears divide the distance that is clipped to the canthus being adjacent to equate.
For example, the result calculating can be the difference in height of two eyebrows, or the difference in height of ear coboundary, or ear is to the distance at canthus etc.
In concrete enforcement, can only to one or several ratio values representative in face feature position relationship, calculate, without the ratio value of all face feature position relationships is calculated, reduce data processing amount.
Wherein, the second judging unit 1706, for judging whether described face feature relative position relation difference meets default error range; If met, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.
Wherein, be preset with the error range corresponding with the face feature position relationship difference of calculating in the second computing unit 1705.
Concrete, the second judging unit 1706, according to the face feature object comprising in this face feature position relationship, as the distance of ear to canthus, obtains its corresponding error range, as ± 0.5.
Wherein, this error range is to obtain according to one be shooted's ratio of imaging in image, and one be shooted's imaging in image is larger, and this error range can be larger, and one be shooted's imaging in image is less, and this error range can be less.
Concrete, each relative position relation difference default seek scope corresponding with it calculating in the second computing unit 1705 compared.
Wherein, when described face feature relative position relation difference meets default error range, in described image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in described image.
Wherein, when described judged result represents that the face feature information of described image does not meet default distribution rule, the face that characterizes this one be shooted does not take over against electronic equipment, the best angle imaging of the head portrait that can cause so making personage in photo, need to adjust one be shooted's facial pose, so that the best angle imaging of its head portrait in photo.
So the relativeness between the face feature information in the image obtaining according to this analysis and this default distribution rule, generates information.
Concrete, the 3rd feature and the 4th is characterized as symmetrical face feature, relative position relation difference between symmetrical face feature is the relative position relation difference of the 3rd feature and the 4th feature, reminding module comprises: the 3rd Tip element 1707, for when the relative position relation difference of the 3rd feature and the 4th feature is greater than the higher limit of default error range, according to the relative position of the 3rd feature and the 4th feature, generate the information of deflection the 3rd characteristic direction; The 4th Tip element 1708, while being less than the lower limit of default error range for the relative position relation difference when the 3rd feature and the 4th feature, according to the relative position of the 3rd feature and the 4th feature, generates the information of deflection the 4th characteristic direction.For example, the distance value that ear is right ear to the distance value at canthus and left side ear to canthus to the distance difference at canthus poor.
The schematic diagram of rotary head attitude as shown in Figure 8, one be shooted is when turning right an attitude (side face), when two ears are less than default difference range lower limit to the distance difference at canthus, represent one be shooted's rotary head to the right, now need to generate the information of this one be shooted's needs rotary head left of prompting, this information direction of motion as shown by arrows in FIG..
The schematic diagram of rotary head attitude as shown in figure 10, one be shooted is when turning left an attitude (side face), when two ears are greater than default difference range higher limit to the distance difference at canthus, represent one be shooted's rotary head left, now need to generate the information of this one be shooted's needs rotary head to the right of prompting, this information direction of motion as shown by arrows in FIG..
For example, the difference in height of two eyebrows is the difference of left eyebrow height and right eyebrow height.
Torticollis attitude schematic diagram left as shown in figure 11, in one be shooted's image, eyebrow difference in height is less than the lower limit of ratio range, represent one be shooted's torticollis left, generate the information that this one be shooted of prompting need to raise left side face, this information direction of motion as shown by arrows in FIG..
Torticollis attitude schematic diagram to the right as shown in figure 12, in one be shooted's image, eyebrow difference in height is greater than the higher limit of ratio range, represent one be shooted's torticollis to the right, generate the information that this one be shooted of prompting need to raise right side face, this information direction of motion as shown by arrows in FIG..
Certainly, in actual enforcement, generally can judge according at least two ratio value data, consider current one be shooted's facial pose, guarantee to improve the accuracy of the information generating.
Concrete, the type of information, sets according to actual conditions, in the present embodiment, does not limit.
It should be noted that, be that prompting mode is in image, to increase the mode that information is carried out image demonstration in the present embodiment, in actual enforcement, also can be voice message, or voice message simultaneously and image display reminding, in mode the application of prompting, do not limit.
To sum up, in a kind of image acquisition suggestion device providing in the present embodiment, judge module comprises: the second computing unit, for the second computation rule according to default, face feature information is calculated, and obtain the relative position relation difference between each symmetrical face feature in people's face; The second judging unit, for judging whether face feature relative position relation difference meets default error range; If met, in image, the face feature information of people's face meets default distribution rule; Otherwise the face feature information of people's face does not meet default distribution rule in image.Wherein, the 3rd feature and the 4th is characterized as symmetrical face feature, relative position relation difference between symmetrical face feature is the relative position relation difference of the 3rd feature and the 4th feature, reminding module comprises: the 3rd Tip element, for when the relative position relation difference of the 3rd feature and the 4th feature is greater than the higher limit of default error range, according to the relative position of the 3rd feature and the 4th feature, generate the information of deflection the 3rd characteristic direction; The 4th Tip element, while being less than the lower limit of default error range for the relative position relation difference when the 3rd feature and the 4th feature, according to the relative position of the 3rd feature and the 4th feature, generates the information of deflection the 4th characteristic direction.According to this information, so that photographer learns current one be shooted's face feature in time, do not meet the demands, and can according to this information, adjust one be shooted's shooting angle, be able to make the object of the best angle imaging of personage's head portrait in photo.
Corresponding with a kind of image acquisition suggestion device embodiment that above-mentioned the application provides, the application also provides a kind of electronic equipment, and this electronic equipment has the image acquisition suggestion device as described in above-mentioned arbitrary embodiment.
Wherein, this image acquisition suggestion device comprises: acquisition module, analysis module, judge module and reminding module, the function of all modules of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, this acquisition module comprises: receiving element, buffer unit and receiving element, the function of all modules unit of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, this analysis module comprises: recognition unit and analytic unit, the function of all modules unit of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, this judge module comprises: the first computing unit and the first judging unit, the function of all modules unit of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, the First Characteristic that this face feature position relationship ratio value is face and the position relationship ratio value of Second Characteristic, described reminding module comprises: the first Tip element and the second Tip element, the function of all modules unit of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, this judge module comprises: the second computing unit and the second judging unit, the function of all modules unit of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, the 3rd feature and the 4th is characterized as symmetrical face feature, relative position relation difference between the face feature of described symmetry is the relative position relation difference of the 3rd feature and the 4th feature, described reminding module comprises: the 3rd Tip element and the 4th Tip element, the function of all modules unit of this signal conditioning package is consistent with the function of corresponding construction in above-mentioned a kind of image acquisition suggestion device embodiment, in the present embodiment, repeats no more.
Preferably, reminding module also for: when described judged result represents that the face feature information of described image meets default distribution rule, stop exporting described information.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For the device providing for embodiment, because its method providing with embodiment is corresponding, so description is fairly simple, relevant part partly illustrates referring to method.
Above-mentioned explanation to provided embodiment, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle provided in this article and features of novelty.