CN101902596A - Image processing method, image processing device and digital television receiving terminal - Google Patents
Image processing method, image processing device and digital television receiving terminalDownload PDFInfo
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- CN101902596A CN101902596ACN201010112278XACN201010112278ACN101902596ACN 101902596 ACN101902596 ACN 101902596ACN 201010112278X ACN201010112278X ACN 201010112278XACN 201010112278 ACN201010112278 ACN 201010112278ACN 101902596 ACN101902596 ACN 101902596A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of image processing method, image processing apparatus and receiving terminal for digital television.
Background technology
Receiving terminal for digital television can be divided into cursor layer, image layer, video layer, quiet frame layer and five levels of background layer from top to bottom, and each level all has data buffer zone separately.Wherein video layer is the current decoding video signal of watching, generates video image and also this video image is buffered in the video layer buffering area; Image layer is obtained this video image from the video layer buffering area, the information of stack literal or picture etc. makes screen provide more additional information for the user on this video image, through image layer processed video image buffer storage in the image layer buffering area; Cursor layer is then obtained the video image that is superimposed with information from the image layer buffering area, on video image, hang display elements such as TV station's icon, platform number or operation indicating icon,, in the cursor layer buffering area, wait for being synchronized in the display buffer showing through cursor layer processed video image buffer storage.At present the most frequently used is image layer and these two levels of video layer, because television set shows the cursor input peripheral that does not have similar mouse and so on, actually use situation that cursor layer drives seldom, when in receiving terminal for digital television, additionally realizing cursor layer, need to increase corresponding cursor layer and drive and memory cost, increased the weight of the processing burden of the figure mixing module of receiving terminal for digital television.
Summary of the invention
Problem in view of the prior art existence, the embodiment of the invention proposes a kind of image processing method, image processing apparatus and receiving terminal for digital television, can realize the function of cursor layer, avoid the processing burden of graph mixing module simultaneously.
In order to solve the problems of the technologies described above, the embodiment of the invention proposes a kind of image processing method, comprising:
To the decoding video signal of input, generate video image;
The prompting request that issues according to application generates information, and described information is added on the described video image, generates composite video image, and described composite video image is buffered in the image layer buffering area;
The display element that issues according to application shows request, obtains the area information of the image-region that display element and described display element take in described composite video image;
According to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element;
The composite video image of the described display element that superposeed in the described image layer buffering area is synchronized in the display buffer shows.
Correspondingly, the embodiment of the invention also proposes a kind of image processing apparatus, comprising:
The video image generation module is used for the decoding video signal to input, generates video image;
Image processing module, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module generates, generate composite video image, and described composite video image is buffered in the image layer buffering area, the display element that issues according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element;
Synchronization module, the composite video image that is used for the described display element that superposes that will be in the described image layer buffering area be generated by described image processing module is synchronized to the display buffer and shows.
Correspondingly, the embodiment of the invention also proposes a kind of receiving terminal for digital television, and described receiving terminal for digital television comprises above-mentioned image processing apparatus.
Implement the embodiment of the invention, generate information by the prompting request that issues according to application, described information is added on the described video image, generate composite video image, and described composite video image is buffered in the image layer buffering area, the display element that issues according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element, thereby when realizing the image layer function, also the function of cursor layer is simulated, therefore need not to increase corresponding cursor layer driving and memory cost with extra realization cursor layer, avoid the processing burden of graph mixing module.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the first pass figure of image processing method in the embodiment of the invention;
Fig. 2 is second flow chart of image processing method in the embodiment of the invention;
Fig. 3 is the schematic diagram of receiving terminal for digital television in the embodiment of the invention.
Embodiment
The embodiment of the invention proposes a kind of image processing method, image processing apparatus and receiving terminal for digital television, can realize the function of cursor layer, avoids the processing burden of graph mixing module simultaneously.
Fig. 1 is the first pass figure of image processing method in the embodiment of the invention, and image processing method comprises in the embodiment of the invention:
, when specifically implementing, realize the function of video layer herein, to the decoding video signal of input, generate video image, this video image is buffered in the video layer buffering area.
Herein, realize the function of image layer, promptly from the video layer buffering area, obtain this video image, information superposes on this video image, generate composite video image, make screen provide more additional information for the user, this prompting message can only be formed, also can be combined by literal and picture by literal or picture, and prompting message can be the rendition list that for example has programm name and background image.Composite video image after image layer is handled is buffered in the image layer buffering area.During concrete enforcement, can receive application layer and issue the prompting request, the prompting request is the operation of application program at the user, a series of graphic operation sequences that are intended to change the active user interface of sending to the graphics engine module.At the operation of drawing, graphics engine receives picture data and operating parameter, according to operating parameter the driving relevant parameter is set, and the picture stacked data is added on the video image; At the request of the element figure sequence of operation, graphics engine calls and drives relevant interface, draws out element figure and this element figure is added on the video image.
Herein, some application can require to hang display element on video image, for example TV station's icon, platform number or operation indicating icon etc.During concrete enforcement, can preset the information chained list of all display elements on the cursor layer, the display element that stores each element in this information chained list identifies, shows component information such as original position, display size parameter, the display element that issues according to application shows that the display element in the request identifies, in this information chained list, search corresponding display element, the area information of the image-region that in described composite video image, takies according to the original position and the display size calculation of parameter display element of this display element.An example of above-mentioned information chained list can see Table 1, in table 1, suppose that the image-region that display element takies is the rectangular area in described composite video image, the picture size of composite video image is width 1280 pixels, height 720 pixels (brief note is 1280 * 720), the origin of coordinates is the summit of composite video image lower left, and original position is the coordinate of display element on the summit of the lower left in the rectangular image zone that composite video image takies
Table 1
Herein, when showing the display element in the request, display element is designated ID001, then search corresponding display element according to this display element sign, while is according to the original position (5 of this display element, 660) and display size 30 * 20 width coordinate scope of calculating the image-region that these display elements take at composite video image be [5,35], the height coordinate scope is [660,680], after this can be with aforesaid width coordinate scope and height coordinate scope area information as this image-region, also can use four apex coordinates (5,660) of image-region, (35,660), (5,680) and (35,680) as the area information of this image-region.
Herein, during concrete enforcement, can be according to width coordinate scope that calculates in thestep 103 and height coordinate scope, with the be added to respective image zone of composite video image in the described image layer buffering area of described display element, for example according to above-mentioned example, can be according to width coordinate scope [5,35], the height coordinate scope [660,680], with element identifier is the be added to width coordinate scope [5 of composite video image in the described image layer buffering area of the display element of ID001,35], the image-region of height coordinate scope [660,680].In addition, also can be according to four apex coordinates that calculate in thestep 103, with described display element be added to composite video image in the described image layer buffering area by these four image-regions that apex coordinate limits, for example according to above-mentioned example, can be according to four apex coordinates (5,660), (35,660), (5,680) and (35,680), with element identifier be the display element of ID001 be added to composite video image in the described image layer buffering area by these four apex coordinates (5,660), (35,660), on the rectangular image zone that (5,680) and (35,680)limit.Step 103 is after image layer generates the composite video image of the information that superposeed, with the be added to respective image zone of composite video image in the image layer buffering area of display element, thereby when realizing the image layer function, also the function of cursor layer is simulated, therefore need not to increase corresponding cursor layer driving and memory cost with extra realization cursor layer, avoid the processing burden of graph mixing module.
, copy on the video memory herein, promptly carry out the simultaneous operation that is cached to video memory data cached.Owing to cursor layer needs data presented to append on the image layer, call to be cached to after the video memory simultaneous operation, the image that has mixed cursor layer and image layer two layer data has just shown.
Fig. 2 is second flow chart of image processing method in the embodiment of the invention, image processing method is on the basis of the described method of Fig. 1 in the embodiment of the invention, increased the treatment step that the display element in the composite video image of the display element that will superpose is hidden, image processing method specifically comprises in the embodiment of the invention:
, when specifically implementing, realize the function of video layer herein, to the decoding video signal of input, generate video image, this video image is buffered in the video layer buffering area.
Herein, realize the function of image layer, promptly from the video layer buffering area, obtain this video image, information superposes on this video image, generate composite video image, make screen provide more additional information for the user, this prompting message can only be formed, also can be combined by literal and picture by literal or picture, and prompting message can be the rendition list that for example has programm name and background image.Composite video image after image layer is handled is buffered in the image layer buffering area.During concrete enforcement, can receive application layer and issue the prompting request, the prompting request is the operation of application program at the user, a series of graphic operation sequences that are intended to change the active user interface of sending to the graphics engine module.At the operation of drawing, graphics engine receives picture data and operating parameter, according to operating parameter the driving relevant parameter is set, and the picture stacked data is added on the video image; At the request of the element figure sequence of operation, graphics engine calls and drives relevant interface, draws out element figure and this element figure is added on the video image.
Herein, some application can require to hang display element on video image, for example TV station's icon, platform number or operation indicating icon etc.During concrete enforcement, can preset the information chained list of all display elements on the cursor layer, the display element that stores each element in this information chained list identifies, shows component information such as original position, display size parameter, the display element that issues according to application shows that the display element in the request identifies, in this information chained list, search and think corresponding display element, the area information of the image-region that in described composite video image, takies according to the original position and the display size calculation of parameter display element of this display element.An example of above-mentioned information chained list can see Table 1, in table 1, suppose that the image-region that display element takies is the rectangular area in described composite video image, the picture size of composite video image is width 1280 pixels, height 720 pixels (brief note is 1280 * 720), the origin of coordinates is the summit of composite video image lower left, and original position is the coordinate of display element on the summit of the lower left in the rectangular image zone that composite video image takies
Herein, when showing the display element in the request, display element is designated ID001, then search corresponding display element according to this display element sign, while is according to the original position (5 of this display element, 660) and display size 30 * 20 width coordinate scope of calculating the image-region that these display elements take at composite video image be [5,35], the height coordinate scope is [660,680], after this can be with aforesaid width coordinate scope and height coordinate scope area information as this image-region, also can use four apex coordinates (5,660) of image-region, (35,660), (5,680) and (35,680) as the area information of this image-region.
Herein, during concrete enforcement, can be cached in the extra buffer according to the video image of described area information, thereby the video image of the image-region that display element on the composite video image will be taken backs up the respective image zone of described composite video image.For example according to above-mentioned example, the width coordinate scope of the image-region that takies at composite video image according to display element is [5,35], the height coordinate scope is [660,680], with width coordinate scope in the composite video image is [5,35], the height coordinate scope is that the video image of [660,680] image-region is cached in the extra buffer, that is to say that the video image of the image-region that display element on the composite video image will be taken is cached in the extra buffer.Four apex coordinates (5 of the image-region that takies at composite video image according to display element and for example, 660), (35,660), (5,680) and (35,680), with composite video image in the image layer buffering area by these four apex coordinates (5,660), (35,660), (5,680) and (35,680) video image in the rectangular image zone of Xian Dinging is cached in the extra buffer, that is to say that the video image of the image-region that display element on the composite video image will be taken is cached in the extra buffer.
Herein, during concrete enforcement, can be according to width coordinate scope that calculates in thestep 103 and height coordinate scope, with the be added to respective image zone of composite video image in the described image layer buffering area of described display element, for example according to above-mentioned example, can be according to width coordinate scope [5,35], the height coordinate scope [660,680], with element identifier is the be added to width coordinate scope [5 of composite video image in the described image layer buffering area of the display element of ID001,35], the image-region of height coordinate scope [660,680].In addition, also can be according to four apex coordinates that calculate in thestep 103, with described display element be added to composite video image in the described image layer buffering area by these four image-regions that apex coordinate limits, for example according to above-mentioned example, can be according to four apex coordinates (5,660), (35,660), (5,680) and (35,680), with element identifier be the display element of ID001 be added to composite video image in the described image layer buffering area by these four apex coordinates (5,660), (35,660), on the rectangular image zone that (5,680) and (35,680)limit.Step 103 is after image layer generates the composite video image of the information that superposeed, with the be added to respective image zone of composite video image in the image layer buffering area of display element, thereby when realizing the image layer function, also the function of cursor layer is simulated, therefore need not to increase corresponding cursor layer driving and memory cost with extra realization cursor layer, avoid the processing burden of graph mixing module.
, copy on the video memory herein, promptly carry out the simultaneous operation that is cached to video memory data cached.Owing to cursor layer needs data presented to append on the image layer, call to be cached to after the video memory simultaneous operation, the image that has mixed cursor layer and image layer two layer data has just shown.
Herein, some uses the demonstration time requirement to some extent to display element, and when the demonstration that reaches application specifies during the time, application can issue display element and hide request, carries out display element with indication and hides operation.During concrete enforcement, with the be added to image-region at the display element place on the composite video image in the described image layer buffering area of the video image of backup in thestep 104, thereby display element is removed from composite video image, composite video image in the image layer buffering area is returned to state before the display element that do not superpose.Herein, according to above-mentioned example, can be according to width coordinate scope [5,35], the height coordinate scope [660,680], the video image of backup is added to width coordinate scope [5,35], the height coordinate scope [660 of composite video image in the described image layer buffering area, 680] image-region that is to say the image-region at display element place.In addition, also can be according to four apex coordinates that calculate in thestep 103, with described display element be added to composite video image in the described image layer buffering area by these four image-regions that apex coordinate limits, for example according to above-mentioned example, can be according to four apex coordinates (5,660), (35,660), (5,680) and (35,680), with the video image of backup be added to composite video image in the described image layer buffering area by these four apex coordinates (5,660), (35,660), (5,680) and (35,680) on the rectangular image zone of Xian Dinging, that is to say the image-region at display element place.
Herein, the video image of the backup on the image layer buffering area with use consistent image layer buffering area and the display buffer of calling of exercisable video image when synchronous, the video image of the backup on the image layer buffering area can cover display element region video image on the display buffer, thereby hides display element.
Fig. 3 is the schematic diagram of image processing apparatus in the embodiment of the invention, and image processing apparatus comprises video image generation module 31, image processing module 32 and synchronization module 33 in the embodiment of the invention, wherein:
Video image generation module 31 is used for the decoding video signal to input, generates video image;
, when specifically implementing, realize the function of video layer herein, to the decoding video signal of input, generate video image, this video image is buffered in the video layer buffering area.
Image processing module 32, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module 31 generates, generate composite video image, and described composite video image is buffered in the image layer buffering area, the display element that issues according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element;
Can comprise during image processing module 32 concrete enforcements:
Composite video image generation unit 321, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module 31 generates, generate composite video image, and described composite video image is buffered in the image layer buffering area;
Herein, realize the function of image layer, promptly from the video layer buffering area, obtain this video image, information superposes on this video image, generate composite video image, make screen provide more additional information for the user, this prompting message can only be formed, also can be combined by literal and picture by literal or picture, and prompting message can be the rendition list that for example has programm name and background image.Composite video image after image layer is handled is buffered in the image layer buffering area.During concrete enforcement, can receive application layer and issue the prompting request, the prompting request is the operation of application program at the user, a series of graphic operation sequences that are intended to change the active user interface of sending to the graphics engine module.At the operation of drawing, graphics engine receives picture data and operating parameter, according to operating parameter the driving relevant parameter is set, and the picture stacked data is added on the video image; At the request of the element figure sequence of operation, graphics engine calls and drives relevant interface, draws out element figure and this element figure is added on the video image.
Display element superpositing unit 322, the display element that is used for issuing according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element.
Herein, some application can require to hang display element on video image, for example TV station's icon, platform number or operation indicating icon etc.During concrete enforcement, can preset the information chained list of all display elements on the cursor layer, the display element that stores each element in this information chained list identifies, shows component information such as original position, display size parameter, the display element that issues according to application shows that the display element in the request identifies, in this information chained list, search and think corresponding display element, the area information of the image-region that in described composite video image, takies according to the original position and the display size calculation of parameter display element of this display element.An example of above-mentioned information chained list can see Table 1, in the table 1, herein, when showing the display element in the request, display element is designated ID001, then search corresponding display element according to this display element sign, while is according to the original position (5 of this display element, 660) and display size 30 * 20 width coordinate scope of calculating the image-region that these display elements take at composite video image be [5,35], the height coordinate scope is [660,680], after this can be with aforesaid width coordinate scope and height coordinate scope area information as this image-region, also can use four apex coordinates (5,660) of image-region, (35,660), (5,680) and (35,680) as the area information of this image-region.
Synchronization module 33, the composite video image that is used for the described display element that superposes that will be in the described image layer buffering area be generated by described image processing module 32 is synchronized to the display buffer and shows.
, copy on the video memory herein, promptly carry out the simultaneous operation that is cached to video memory data cached.Owing to cursor layer needs data presented to append on the image layer, call to be cached to after the video memory simultaneous operation, the image that has mixed cursor layer and image layer two layer data has just shown.
In addition, some uses the demonstration time requirement to some extent to display element, when the demonstration that reaches application specifies during the time, application can issue display element and hide request, carry out display element with indication and hide operation, will hide processing to the display element in the composite video image of the display element that superposes this moment, so image processing module 32 can also comprise:
Backup units 323 is used for backing up according to described area information the video image in the respective image zone of described composite video image;
Herein, during concrete enforcement, can be cached in the extra buffer according to the video image of described area information, thereby the video image of the image-region that display element on the composite video image will be taken backs up the respective image zone of described composite video image.For example according to above-mentioned example, the width coordinate scope of the image-region that takies at composite video image according to display element is [5,35], the height coordinate scope is [660,680], with width coordinate scope in the composite video image is [5,35], the height coordinate scope is that the video image of [660,680] image-region is cached in the extra buffer, that is to say that the video image of the image-region that display element on the composite video image will be taken is cached in the extra buffer.Four apex coordinates (5 of the image-region that takies at composite video image according to display element and for example, 660), (35,660), (5,680) and (35,680), with composite video image in the image layer buffering area by these four apex coordinates (5,660), (35,660), (5,680) and (35,680) video image in the rectangular image zone of Xian Dinging is cached in the extra buffer, that is to say that the video image of the image-region that display element on the composite video image will be taken is cached in the extra buffer.Image restoration unit 324 is used to receive and uses the display element that issues and hide request, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of the video image of described backup units 323 backups;
During concrete enforcement, with the be added to image-region at the display element place on the composite video image in the described image layer buffering area of the video image of backup units 323 backup, thereby display element is removed from composite video image, composite video image in the image layer buffering area is returned to state before the display element that do not superpose.Herein, according to above-mentioned example, can be according to width coordinate scope [5,35], the height coordinate scope [660,680], the video image of backup is added to width coordinate scope [5,35], the height coordinate scope [660 of composite video image in the described image layer buffering area, 680] image-region that is to say the image-region at display element place.In addition, also can be according to four apex coordinates that calculate in the step 103, with described display element be added to composite video image in the described image layer buffering area by these four image-regions that apex coordinate limits, for example according to above-mentioned example, can be according to four apex coordinates (5,660), (35,660), (5,680) and (35,680), with the video image of backup be added to composite video image in the described image layer buffering area by these four apex coordinates (5,660), (35,660), (5,680) and (35,680) on the rectangular image zone of Xian Dinging, that is to say the image-region at display element place.
Indicating member 325 is used for indicating described synchronization module that the composite video image that is recovered by image restoration unit 324 in the described image layer buffering area is synchronized to the display buffer once more and shows synchronously.
Herein, the video image of the backup on the image layer buffering area with use consistent image layer buffering area and the display buffer of calling of exercisable video image when synchronous, the video image of the backup on the image layer buffering area can cover display element region video image on the display buffer, thereby hides display element.
The embodiment of the invention also proposes a kind of receiving terminal for digital television, and described receiving terminal for digital television comprises image processing apparatus shown in Figure 3, and this image processing apparatus comprises video image generation module 31, image processing module 32 and synchronization module 33, wherein:
Video image generation module 31 is used for the decoding video signal to input, generates video image;
Image processing module 32, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module 31 generates, generate composite video image, and described composite video image is buffered in the image layer buffering area, the display element that issues according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element;
Can comprise during image processing module 32 concrete enforcements:
Composite video image generation unit 321, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module 31 generates, generate composite video image, and described composite video image is buffered in the image layer buffering area;
Display element superpositing unit 322, the display element that is used for issuing according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element.
Synchronization module 33, the composite video image that is used for the described display element that superposes that will be in the described image layer buffering area be generated by described image processing module 32 is synchronized to the display buffer and shows.
In addition, some uses the demonstration time requirement to some extent to display element, when the demonstration that reaches application specifies during the time, application can issue display element and hide request, carry out display element with indication and hide operation, will hide processing to the display element in the composite video image of the display element that superposes this moment, so image processing module 32 can also comprise:
Backup units 323 is used for backing up according to described area information the video image in the respective image zone of described composite video image;
Image restoration unit 324 is used to receive and uses the display element that issues and hide request, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of the video image of described backup units 323 backups;
Indicating member 325 is used for indicating described synchronization module that the composite video image that is recovered by image restoration unit 324 in the described image layer buffering area is synchronized to the display buffer once more and shows synchronously.
Need to prove that the module of each module that image processing apparatus comprises in the embodiment of the invention receiving terminal for digital television and the concrete working method of unit and image processing apparatus shown in Figure 3 is identical with the working method of unit, is not described in detail in this.
Receiving terminal for digital television of the present invention includes but not limited to: and set-top box, network protocol television (InternetProtocol Television, IPTV), digital TV integrated machine etc. has the terminal of receiving digital television function.
To sum up, implement the embodiment of the invention, generate information by the prompting request that issues according to application, described information is added on the described video image, generate composite video image, and described composite video image is buffered in the image layer buffering area, the display element that issues according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element, thereby when realizing the image layer function, also the function of cursor layer is simulated, therefore need not to increase corresponding cursor layer driving and memory cost with extra realization cursor layer, avoid the processing burden of graph mixing module.
Above disclosed is preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (11)
1. an image processing method is characterized in that, comprising:
To the decoding video signal of input, generate video image;
The prompting request that issues according to application generates information, and described information is added on the described video image, generates composite video image, and described composite video image is buffered in the image layer buffering area;
The display element that issues according to application shows request, obtains the area information of the image-region that display element and described display element take in described composite video image;
According to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element;
The composite video image of the described display element that superposeed in the described image layer buffering area is synchronized in the display buffer shows.
2. image processing method as claimed in claim 1 is characterized in that,
According to described area information described display element is added to and comprises before the respective image zone step of composite video image in the described image layer buffering area:
Back up the video image in the respective image zone of described composite video image according to described area information.
3. image processing method as claimed in claim 2 is characterized in that,
Described composite video image with the described display element that superposeed in the described image layer buffering area is synchronized to and carries out in the display buffer comprising after the step display:
Receive the hiding request of the display element that issues of using,
According to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of the video image of backup;
Composite video image in the described image layer buffering area is synchronized in the display buffer once more shows.
4. image processing method as claimed in claim 2 is characterized in that,
The described video image step that backs up the respective image zone of described composite video image according to described area information is specially:
Be cached in the extra buffer according to the video image of described area information the respective image zone of described composite video image.
5. as each described image processing method of claim 1 to 4, it is characterized in that,
Described display element comprise TV station's platform number, icon and or the operation indicating icon.
6. an image processing apparatus is characterized in that, comprising:
The video image generation module is used for the decoding video signal to input, generates video image;
Image processing module, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module generates, generate composite video image, and described composite video image is buffered in the image layer buffering area, the display element that issues according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element;
Synchronization module, the composite video image that is used for the described display element that superposes that will be in the described image layer buffering area be generated by described image processing module is synchronized to the display buffer and shows.
7. image processing apparatus as claimed in claim 6 is characterized in that, described image processing module comprises:
The composite video image generation unit, the prompting request that is used for issuing according to application generates information, described information is added on the video image that described video image generation module generates, generates composite video image, and described composite video image is buffered in the image layer buffering area;
The display element superpositing unit, the display element that is used for issuing according to application shows request, obtain the area information of the image-region that display element and described display element take in described composite video image, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of described display element.
8. image processing apparatus as claimed in claim 7 is characterized in that, described image processing module also comprises:
Backup units is used for backing up according to described area information the video image in the respective image zone of described composite video image.
9. image processing apparatus as claimed in claim 8 is characterized in that, described image processing module also comprises:
Image restoration unit is used to receive and uses the display element that issues and hide request, according to described area information with the be added to respective image zone of composite video image in the described image layer buffering area of the video image of described backup units backup;
Indicating member is used for indicating described synchronization module that the composite video image by the image restoration unit recovery in the described image layer buffering area is synchronized to the display buffer once more and shows synchronously.
10. image processing apparatus as claimed in claim 7 is characterized in that,
Described backup units is cached in the extra buffer according to the video image of described area information with the respective image zone of described composite video image.
11. a receiving terminal for digital television is characterized in that, comprises each described image processing apparatus of claim 6 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010112278XACN101902596B (en) | 2010-02-09 | 2010-02-09 | Image processing method, image processing device and digital television receiving terminal |
| PCT/CN2011/070411WO2011097975A1 (en) | 2010-02-09 | 2011-01-20 | Image processing method, image processing equipment and digital tv receiving terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010112278XACN101902596B (en) | 2010-02-09 | 2010-02-09 | Image processing method, image processing device and digital television receiving terminal |
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| CN101902596Atrue CN101902596A (en) | 2010-12-01 |
| CN101902596B CN101902596B (en) | 2012-08-22 |
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| CN201010112278XAActiveCN101902596B (en) | 2010-02-09 | 2010-02-09 | Image processing method, image processing device and digital television receiving terminal |
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| CN (1) | CN101902596B (en) |
| WO (1) | WO2011097975A1 (en) |
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| CN106303285A (en)* | 2015-05-20 | 2017-01-04 | 深圳市中兴微电子技术有限公司 | A method and device for outputting multimedia information |
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| WO2011097975A1 (en)* | 2010-02-09 | 2011-08-18 | 深圳市同洲电子股份有限公司 | Image processing method, image processing equipment and digital tv receiving terminal |
| CN103260067A (en)* | 2013-05-15 | 2013-08-21 | 深圳国微技术有限公司 | Method for processing image data and condition receiving module |
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| WO2018076898A1 (en)* | 2016-10-28 | 2018-05-03 | 深圳市中兴微电子技术有限公司 | Information outputting and displaying method and device, and computer readable storage medium |
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| CN107566765A (en)* | 2017-08-21 | 2018-01-09 | 康佳集团股份有限公司 | A kind of on-screen menu display control method, storage medium and 8K TVs |
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| CN110636360A (en)* | 2018-05-31 | 2019-12-31 | 晨星半导体股份有限公司 | Display device and image processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011097975A1 (en) | 2011-08-18 |
| CN101902596B (en) | 2012-08-22 |
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