CN102237013A - Display screen adjustment system and method, and advertisement board with adjustment system - Google Patents

Abstract

Translated fromChinese

一种广告板包括一显示屏、一支架、一运动装置、一设置于显示屏中线位置处的摄像头及一调整系统。所述支架通过运动装置与显示屏相连，且显示屏可通过运动装置改变其高度。所述摄像头用于拍摄一观看者的图像。所述调整系统用于对得到的观看者的图像进行处理，以比较图像中观看者的眼部区域的位置与该图像的中线位置是否重合，若同一图像中观看者的眼部区域的位置与该图像的中线位置不重合，则根据比较结果控制运动装置调整显示屏的高度，以使得同一图像中观看者的眼部区域的位置与该图像的中线位置重合，从而使得观看者能轻松地观看到合适的广告内容。本发明还提供了一种显示屏调整系统及方法。

An advertising board includes a display screen, a bracket, a movement device, a camera arranged at the center line of the display screen and an adjustment system. The bracket is connected with the display screen through the movement device, and the height of the display screen can be changed through the movement device. The camera is used to capture an image of a viewer. The adjustment system is used to process the obtained viewer's image to compare whether the position of the viewer's eye area in the image coincides with the midline position of the image. If the position of the viewer's eye area in the same image coincides with The midline position of the image does not coincide, and the motion device is controlled to adjust the height of the display screen according to the comparison result, so that the position of the viewer's eye area in the same image coincides with the midline position of the image, so that the viewer can easily watch to the appropriate ad content. The invention also provides a display screen adjustment system and method.

Description

Translated fromChinese

显示屏调整系统、方法及具有该调整系统的广告板Display adjustment system, method and advertising board with the adjustment system

技术领域technical field

本发明涉及一种广告板，特别涉及一种显示屏调整系统、方法及具有该调整系统的广告板。The invention relates to an advertisement board, in particular to a display screen adjustment system and method and an advertisement board with the adjustment system.

背景技术Background technique

一般的广告板均设置在固定高度，其无法根据观看者的身高自动调整广告板的高度或位置。若广告板的面积较小，则容易使得身高较高或者较低的观看者不能有效的观看广告板，从而使得该广告板的展示效果降低。General advertising boards are set at a fixed height, which cannot automatically adjust the height or position of the advertising board according to the height of the viewer. If the area of the advertisement board is small, it is easy for viewers who are tall or short to view the advertisement board effectively, thereby reducing the display effect of the advertisement board.

发明内容Contents of the invention

鉴于以上内容，有必要提供一种能自动根据观看者身高进行调整的显示屏调整系统、方法，还有必要提供一种包括上述调整系统的广告板。In view of the above, it is necessary to provide a display screen adjustment system and method that can automatically adjust according to the height of the viewer, and it is also necessary to provide an advertising board including the above adjustment system.

一种显示屏调整系统，用于对应不同的观看者调整显示屏的高度，所述显示屏调整系统包括：A display screen adjustment system for adjusting the height of the display screen corresponding to different viewers, the display screen adjustment system comprising:

一脸部侦测单元，用于接收来自一设置于显示屏中线位置处的摄像头所拍摄得到的图像，并对图像进行脸部侦测，以判断图像中是否具有脸部区域，若图像中具有脸部区域，则通过对得到的脸部区域进行计算以得到脸部区域中眼部区域的位置；A face detection unit is used to receive an image captured by a camera arranged at the center line of the display screen, and perform face detection on the image to determine whether there is a face area in the image, if there is a face area in the image For the face area, the position of the eye area in the face area is obtained by calculating the obtained face area;

一中线位置计算单元，用于计算得到的图像的中线位置；A midline position calculation unit, used to calculate the midline position of the obtained image;

一比较单元，用于比较同一图像中脸部区域内的眼部区域的位置与该图像的中线位置是否重合，若同一图像中观看者眼部区域的位置与该图像的中线位置重合则表明所述显示屏已调整至合适的高度，若同一图像中观看者眼部区域的位置不与该图像的中线位置重合，所述比较单元则发送对应的比较信号；以及A comparison unit, used to compare whether the position of the eye area in the face area in the same image coincides with the midline position of the image. If the position of the eye area of the viewer in the same image coincides with the midline position of the image, it indicates that the The display screen has been adjusted to a suitable height, and if the position of the eye area of the viewer in the same image does not coincide with the midline position of the image, the comparison unit sends a corresponding comparison signal; and

一控制单元，用于在同一图像中观看者眼部区域的位置不与该图像的中线位置重合时根据比较信号调整显示屏的高度。A control unit is used for adjusting the height of the display screen according to the comparison signal when the position of the viewer's eye area in the same image does not coincide with the centerline position of the image.

一种显示屏调整系统，用于对应不同的观看者调整显示屏的高度，所述显示屏调整系统包括：A display screen adjustment system for adjusting the height of the display screen corresponding to different viewers, the display screen adjustment system comprising:

一脸部侦测单元，用于接收来自一设置于显示屏中线位置处的摄像头所拍摄得到的图像，并对图像进行脸部侦测，以判断图像中是否具有脸部区域；A face detection unit is used to receive an image captured by a camera arranged at the center line of the display screen, and perform face detection on the image to determine whether there is a face area in the image;

一眼部侦测单元，若图像中具有脸部区域，则通过该眼部侦测单元对得到的脸部区域进行侦测以得到脸部区域中眼部区域的位置；An eye detection unit, if there is a face area in the image, the eye detection unit detects the obtained face area to obtain the position of the eye area in the face area;

一中线位置计算单元，用于计算得到的图像的中线位置；A midline position calculation unit, used to calculate the midline position of the obtained image;

一比较单元，用于比较同一图像中脸部区域内的眼部区域的位置与该图像的中线位置是否重合，若同一图像中观看者眼部区域的位置与该图像的中线位置重合则表明所述显示屏已调整至合适的高度，若同一图像中观看者眼部区域的位置不与该图像的中线位置重合，所述比较单元则发送对应的比较信号；以及A comparison unit, used to compare whether the position of the eye area in the face area in the same image coincides with the midline position of the image. If the position of the eye area of the viewer in the same image coincides with the midline position of the image, it indicates that the The display screen has been adjusted to a suitable height, and if the position of the eye area of the viewer in the same image does not coincide with the midline position of the image, the comparison unit sends a corresponding comparison signal; and

一控制单元，用于在同一图像中观看者眼部区域的位置不与该图像的中线位置重合时根据比较信号调整显示屏的高度。A control unit is used for adjusting the height of the display screen according to the comparison signal when the position of the viewer's eye area in the same image does not coincide with the centerline position of the image.

一种显示屏调整方法，用于对应不同的观看者调整一显示屏的高度，所述显示屏调整方法包括：A display screen adjustment method for adjusting the height of a display screen corresponding to different viewers, the display screen adjustment method comprising:

脸部侦测步骤：接收来自一设置于显示屏中线位置处的摄像头所拍摄得到的图像，并对图像进行脸部侦测，以判断图像中是否具有脸部区域；Face detection step: receiving an image captured by a camera arranged at the center line of the display screen, and performing face detection on the image to determine whether there is a face area in the image;

眼部区域侦测步骤：当图像中具有脸部区域时得到脸部区域中眼部区域的位置；Eye area detection step: when there is a face area in the image, the position of the eye area in the face area is obtained;

中线位置计算步骤：根据得到的图像计算图像的中线位置；Midline position calculation step: calculate the midline position of the image according to the obtained image;

比较步骤：比较同一图像中观看者眼部区域的位置与该图像的中线位置是否重合，若同一图像中观看者眼部区域的位置与该图像的中线位置重合则表明所述显示屏已调整至合适的高度，若同一图像中观看者眼部区域的位置不与该图像的中线位置重合，则发送对应的比较信号；以及Comparison step: compare whether the position of the viewer's eye area in the same image coincides with the midline position of the image, if the position of the viewer's eye area in the same image coincides with the midline position of the image, it indicates that the display screen has been adjusted to Appropriate height, if the position of the viewer's eye area in the same image does not coincide with the midline position of the image, then send a corresponding comparison signal; and

调整步骤：根据比较信号通过一运动装置调整显示屏的高度。Adjustment step: adjust the height of the display screen through a motion device according to the comparison signal.

一种广告板包括：An advertising board comprising:

一显示屏；a display screen;

一支架；a bracket;

一运动装置，所述支架通过运动装置与显示屏相连，且所述显示屏可通过运动装置改变其高度；A moving device, the bracket is connected with the display screen through the moving device, and the height of the display screen can be changed through the moving device;

一设置于所述显示屏的中线位置处的摄像头，用于拍摄显示屏前方的图像；以及A camera arranged at the centerline of the display screen, used to capture images in front of the display screen; and

一调整系统，用于对得到的图像进行处理，以判断图像中是否具有观看者存在，若图像中有观看者存在，则对该图像进行处理以比较图像中观看者的眼部区域的位置与该图像的中线位置是否重合，若同一图像中观看者的眼部区域的位置与该图像的中线位置不重合，则根据比较结果控制运动装置调整显示屏的高度，以使得同一图像中观看者的眼部区域的位置与该图像的中线位置重合。An adjustment system for processing the obtained image to determine whether there is a viewer in the image, and if there is a viewer in the image, then process the image to compare the position of the eye area of the viewer in the image with the Whether the center line position of the image coincides, if the position of the eye region of the viewer in the same image does not coincide with the center line position of the image, then control the motion device to adjust the height of the display screen according to the comparison result, so that the viewer's eye area in the same image The location of the eye region coincides with the midline location of this image.

上述广告板可利用显示屏调整系统及方法，以根据观看者的身高自动调整其显示屏至合适高度，从而使得观看者能轻松地观看到合适的广告内容。The above-mentioned advertising board can use the display screen adjustment system and method to automatically adjust its display screen to a suitable height according to the height of the viewer, so that the viewer can easily watch the appropriate advertisement content.

附图说明Description of drawings

图1是本发明广告板的较佳实施方式的立体图。Fig. 1 is a perspective view of a preferred embodiment of the advertising board of the present invention.

图2是图1中广告板的另一立体图。Fig. 2 is another perspective view of the advertising board in Fig. 1 .

图3是图2中运动装置的示意图。Fig. 3 is a schematic diagram of the moving device in Fig. 2 .

图4是本发明显示屏调整系统的示意图。Fig. 4 is a schematic diagram of the display screen adjustment system of the present invention.

图5及图6是利用图4中显示屏调整系统对显示屏进行调整的示意图。FIG. 5 and FIG. 6 are schematic diagrams of adjusting the display screen by using the display screen adjustment system in FIG. 4 .

图7是本发明显示屏调整方法的较佳实施方式的流程图。Fig. 7 is a flow chart of a preferred embodiment of the display screen adjustment method of the present invention.

主要元件符号说明Description of main component symbols

显示屏              10Display 10

摄像头              12Camera 12

重力感测器          13Gravity sensor 13

调整系统            15Adjustment system 15

脸部侦测单元        150Face detection unit 150

眼部侦测单元        152Eye detection unit 152

中线位置计算单元    153Center lineposition calculation unit 153

比较单元            156ComparingUnits 156

控制单元            158Control unit 158

运动装置            16Sports device 16

马达                160Motor 160

圆柱齿轮            161Cylindrical gear 161

直齿轮              162Spur gear 162

支架                18Bracket 18

存储装置            19storage device 19

图像                30、31Image 30, 31

脸部区域            32Facial Area 32

具体实施方式Detailed ways

下面结合附图及较佳实施方式对本发明作进一步详细描述：Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

本发明广告板可对应不同的观看者自动调整其高度，以使得观看者能以较好视角观看广告板所展示的内容。本实施方式以观看者的眼睛与广告板的中心位于同一水平线上时，所述观看者能以较好的视角观看广告板的内容。其他实施方式中，观看者与广告板的位置关系亦可根据设计者的需要设定为其他位置关系。The advertising board of the present invention can automatically adjust its height corresponding to different viewers, so that the viewer can watch the content displayed on the advertising board with a better viewing angle. In this embodiment, when the viewer's eyes are on the same horizontal line as the center of the advertisement board, the viewer can watch the content of the advertisement board with a better viewing angle. In other embodiments, the positional relationship between the viewer and the advertising board can also be set to other positional relationships according to the needs of the designer.

请参考图1至图4，本发明广告板的较佳实施方式包括一显示屏10、两摄像头12、一调整系统15、一运动装置16、一支架18及一存储装置(图未示)。Please refer to FIG. 1 to FIG. 4 , a preferred embodiment of the advertising board of the present invention includes adisplay screen 10 , twocameras 12 , anadjustment system 15 , a movingdevice 16 , abracket 18 and a storage device (not shown).

所述显示屏10用于显示广告内容，所述广告内容存储于存储装置内。所述存储装置可安装于显示屏10的后方，也可安装于一远端主机内，所述显示屏10则通过网络与远端主机进行通信。Thedisplay screen 10 is used to display advertisement content, and the advertisement content is stored in a storage device. The storage device can be installed behind thedisplay screen 10 or in a remote host, and thedisplay screen 10 communicates with the remote host through the network.

所述摄像头12分别安装于所述显示屏10的中线处的左侧及右侧，用于实时拍摄显示屏10前方的图像，并将拍摄得到的图像传送至调整系统15。所述调整系统15可为一位于所述显示屏10的后方的电脑系统内部的软件系统，亦可为安装于所述远端主机内的软件系统。另外，其他实施方式中也可以只在所述显示屏10的中线处的左侧或右侧安装一摄像头12。Thecameras 12 are respectively installed on the left side and the right side of the center line of thedisplay screen 10 , and are used to capture images in front of thedisplay screen 10 in real time, and transmit the captured images to theadjustment system 15 . Theadjustment system 15 can be a software system inside the computer system behind thedisplay screen 10, or a software system installed in the remote host. In addition, in other implementation manners, acamera 12 may only be installed on the left or right side of the center line of thedisplay screen 10 .

所述调整系统15用于对得到的每一图像进行侦测，以判断图像中是否有观看者存在。若图像中有观看者存在，则对该图像进行处理，以得到图像中观看者眼部区域的位置，并对应通过运动装置16调整显示屏10的高度，以使得由摄像头12所得到的图像中观看者的眼部区域与该图像的中线重合，此时，观看者的眼部区域即与显示屏10的中线位于同一水平线上，观看者即能通过显示屏10观察到合适的图像。若图像中存在多个脸部区域，则判断此时有多个观看者正在观看显示屏10，并对图像中的多个脸部区域进行处理以得到多个眼部区域的位置，并进一步得到该等眼部区域的位置的平均位置，之后通过运动装置16调整显示屏10的高度，以使得由摄像头12所得到的图像中多个观看者的眼部区域的平均位置与该图像的中线重合。本实施方式中，该等眼部区域的位置的平均位置指以图像的底部作为原点时，该等眼部区域的平均高度。Theadjustment system 15 is used to detect each obtained image to determine whether there is a viewer in the image. If there is a viewer in the image, the image is processed to obtain the position of the viewer's eye region in the image, and the height of thedisplay screen 10 is adjusted by themotion device 16 accordingly, so that the image obtained by thecamera 12 The viewer's eye region coincides with the centerline of the image. At this time, the viewer's eye region is on the same horizontal line as the centerline of thedisplay screen 10 , and the viewer can observe a suitable image through thedisplay screen 10 . If there are multiple facial areas in the image, it is judged that multiple viewers are watching thedisplay screen 10 at this time, and the multiple facial areas in the image are processed to obtain the positions of multiple eye areas, and further obtain The average position of the positions of the eye regions, and then the height of thedisplay screen 10 is adjusted by the movingdevice 16, so that the average position of the eye regions of multiple viewers in the image obtained by thecamera 12 coincides with the midline of the image . In this embodiment, the average position of the eye regions refers to the average height of the eye regions when the bottom of the image is taken as the origin.

请继续参考图3，本实施方式中，所述运动装置16可包括两马达160、固定于马达电机轴上且通过所述马达160驱动的两圆柱齿轮161以及对应设置于所述显示屏10背面的两与所述圆柱齿轮161啮合的直齿轮162。通过控制所述马达160带动圆柱齿轮161旋转，进而与圆柱齿轮161相啮合的直齿轮162推动显示屏10上下运动，即可改变所述显示屏10在所述支架18上的位置，从而调整显示屏10的位置。另外，所述显示屏10上还可设置一重力感测器13，用于感测当运动装置16调整显示屏10的高度时显示屏10是否移动，从而判断运动装置16是否正常工作。Please continue to refer to FIG. 3. In this embodiment, themotion device 16 may include twomotors 160, twocylindrical gears 161 fixed on the motor shafts and driven by themotors 160, and correspondingly arranged on the back of thedisplay screen 10. Two spur gears 162 meshing with thespur gear 161. By controlling themotor 160 to drive thecylindrical gear 161 to rotate, and then thespur gear 162 meshing with thecylindrical gear 161 pushes thedisplay screen 10 to move up and down, so that the position of thedisplay screen 10 on thebracket 18 can be changed, thereby adjusting the display The position of thescreen 10. In addition, agravity sensor 13 may also be provided on thedisplay screen 10 for sensing whether thedisplay screen 10 moves when themotion device 16 adjusts the height of thedisplay screen 10, so as to determine whether themotion device 16 is working normally.

请继续参考图4，所述调整系统15包括一脸部侦测单元150、一眼部侦测单元152、一中线位置计算单元153、一比较单元156及一控制单元158。Please continue to refer to FIG. 4 , theadjustment system 15 includes aface detection unit 150 , aneye detection unit 152 , a midlineposition calculation unit 153 , acomparison unit 156 and acontrol unit 158 .

所述脸部侦测单元150用于接收来自所述摄像头12所拍摄得到的若干图像，并实时对图像进行脸部侦测，以得到每一图像中的脸部区域，从而判断该图像中是否有观看者存在。其中，所述脸部侦测单元150可利用Adaboost算法对图像进行脸部侦测。本实施方式中，当脸部侦测单元150侦测到图像中具有脸部区域时，则判断此时具有观看者；当脸部侦测单元150侦测到图像中具有多个脸部区域时，则判断此时具有多个观看者。Theface detection unit 150 is used to receive a number of images captured by thecamera 12, and perform face detection on the images in real time to obtain the face area in each image, thereby judging whether the image is There are viewers. Wherein, theface detection unit 150 can use the Adaboost algorithm to perform face detection on the image. In this embodiment, when theface detection unit 150 detects that there is a face area in the image, it is determined that there is a viewer at this time; when theface detection unit 150 detects that there are multiple face areas in the image , it is judged that there are multiple viewers at this time.

所述眼部侦测单元152用于根据得到的脸部区域侦测得到观看者的眼部区域。其中，所述眼部侦测单元152可通过边缘及角的侦测再搭配非等向性扩散转换，以侦测得到每一图像中脸部区域中的眼部区域。其他实施方式中，所述眼部侦测单元152亦可省略，观看者脸部区域的上方三分之一处即被当作是眼部区域的大致位置。Theeye detection unit 152 is used to detect the eye area of the viewer according to the obtained face area. Wherein, theeye detection unit 152 can detect the eye area in the face area in each image through edge and corner detection combined with anisotropic diffusion transformation. In other implementation manners, theeye detection unit 152 may also be omitted, and the upper third of the viewer's face area is regarded as the approximate position of the eye area.

所述中线位置计算单元153用于得到每一图像中线的位置。The midlineposition calculating unit 153 is used to obtain the position of the midline of each image.

取得每一图像中观看者眼部区域的位置以及该图像的中线的位置后，所述比较单元156则对每一图像中的该两位置进行比较，并根据比较结果发送对应的比较信号至所述控制单元158。所述控制单元158则对应控制运动装置16，以将显示屏10调整到对应的位置，使得观看者可通过显示屏10观看到合适的广告内容。当具有多个观看者时，所述眼部侦测单元152侦测得到图像中的多个眼部区域，所述比较单元156则将该等眼部区域的平均位置与图像的中线的位置进行比较，并根据比较结果发送对应的比较信号至所述控制单元158。After obtaining the position of the eye region of the viewer in each image and the position of the midline of the image, thecomparison unit 156 compares the two positions in each image, and sends a corresponding comparison signal to the The abovecontrol unit 158. Thecontrol unit 158 correspondingly controls themotion device 16 to adjust thedisplay screen 10 to a corresponding position, so that viewers can watch appropriate advertisement content through thedisplay screen 10 . When there are multiple viewers, theeye detection unit 152 detects multiple eye regions in the image, and thecomparison unit 156 compares the average position of these eye regions with the position of the centerline of the image comparison, and send a corresponding comparison signal to thecontrol unit 158 according to the comparison result.

下面将以一实例进行说明，该实例中观看者的数量为一人，若其他实施方式中观看者的数量为多个时，则需要对该多个观看者的眼部区域的位置进行运算以得到该多个观看者的眼部区域的平均位置。An example will be described below. In this example, the number of viewers is one person. If there are multiple viewers in other implementations, it is necessary to calculate the positions of the eye regions of the multiple viewers to obtain The average position of the eye regions of the multiple viewers.

请参考图5，当观看者位于显示屏10前方时，所述摄像头12对观看者进行拍摄以得到观看者所在场景的图像30。若摄像头12的焦距固定，根据摄像头12的工作原理可知，所述图像30的中线与摄像头12位于同一水平线上。Please refer to FIG. 5 , when the viewer is located in front of thedisplay screen 10 , thecamera 12 takes pictures of the viewer to obtain animage 30 of the scene where the viewer is. If the focal length of thecamera 12 is fixed, according to the working principle of thecamera 12 , the centerline of theimage 30 is located on the same horizontal line as thecamera 12 .

所述脸部侦测单元150对得到的图像30进行脸部侦测，以得到观看者的脸部区域32(图像30中其他部分省略)。之后，所述眼部侦测单元152对得到的脸部区域32进行侦测，以得到观看者的眼部区域，如图5中虚线E1处。Theface detection unit 150 performs face detection on the obtainedimage 30 to obtain the viewer's face area 32 (other parts of theimage 30 are omitted). Afterwards, theeye detection unit 152 detects the obtainedface area 32 to obtain the viewer's eye area, as shown by the dotted line E1 in FIG. 5 .

所述中线位置计算单元153通过计算得到图像30的中线，如图5中虚线M1的位置。The midlineposition calculation unit 153 obtains the midline of theimage 30 through calculation, such as the position of the dotted line M1 in FIG. 5 .

所述比较单元156比较图像30中观看者的眼部区域的位置(如图5中虚线E1所示)与图像30的中线(如图5中虚线M1所示)位置，得知图像30中观看者的眼部区域的位置高于图像30的中线位置，并发送对应的比较信号至控制单元158。Thecomparison unit 156 compares the position of the eye area of the viewer in the image 30 (as shown by the dotted line E1 in FIG. 5 ) with the position of the midline of the image 30 (as shown by the dotted line M1 in FIG. 5 ), and knows that the viewer in theimage 30 The position of the eye area of the patient is higher than the centerline position of theimage 30, and a corresponding comparison signal is sent to thecontrol unit 158.

所述控制单元158根据该比较信号对应控制运动装置16。本实施方式中，由于图像30中观看者的眼部区域的位置(如图5中虚线E1所示)高于图像30的中线位置(如图5中虚线M1所示)，因此所述控制单元158控制所述显示屏10上移。此时，所述摄像头12持续对观看者进行拍摄以得到不同的图像，并对每一图像重复上述处理过程，直到如图6中图像31的中线位置(如虚线M2所示)与该图像31中观看者的眼部区域的位置(如虚线E2所示)重合时，所述控制单元158即控制所述运动装置16停止工作。Thecontrol unit 158 correspondingly controls themotion device 16 according to the comparison signal. In this embodiment, since the position of the eye region of the viewer in the image 30 (as shown by the dotted line E1 in FIG. 5 ) is higher than the midline position of the image 30 (as shown by the dotted line M1 in FIG. 5 ), thecontrol unit 158 controls thedisplay screen 10 to move up. At this point, thecamera 12 continues to shoot the viewer to obtain different images, and repeats the above-mentioned process for each image until the midline position of theimage 31 in FIG. When the positions of the eye regions of the viewer (as shown by the dotted line E2 ) coincide, thecontrol unit 158 controls themotion device 16 to stop working.

由于摄像头12与图像31的中线(即图6中虚线M2)位于同一水平线上，又由于摄像头12安装于显示屏10的中线处，因此，显示屏10的中线处也与图6中虚线M2位于同一水平线上。故当摄像头12拍摄得到的图像31的中线M2与观看者眼部区域(即图6中虚线E2)位于同一水平线上时，所述显示屏10的中线即处于观看者的眼部区域处。此时，观看者即可通过显示屏10观看到合适的广告内容。Since thecamera 12 and the center line of the image 31 (i.e. the dotted line M2 in FIG. 6 ) are located on the same horizontal line, and because thecamera 12 is installed at the center line of thedisplay screen 10, the center line of thedisplay screen 10 is also located at the same level as the dotted line M2 in FIG. 6 on the same level. Therefore, when the midline M2 of theimage 31 captured by thecamera 12 is on the same horizontal line as the viewer's eye area (ie, the dotted line E2 in FIG. 6 ), the midline of thedisplay screen 10 is at the viewer's eye area. At this point, the viewer can watch the appropriate advertisement content through thedisplay screen 10 .

请参考图7，本发明广告板调整方法的较佳实施方式包括以下步骤：Please refer to Fig. 7, a preferred embodiment of the advertising board adjustment method of the present invention includes the following steps:

步骤S61：所述脸部侦测单元150接收来自所述摄像头12所拍摄得到的图像，并对影像进行脸部侦测，以得到图像中的脸部区域。Step S61: Theface detection unit 150 receives the image captured by thecamera 12, and performs face detection on the image to obtain the face area in the image.

步骤S62：所述眼部侦测单元152根据得到的脸部区域侦测得到观看者的眼部区域，如图5中E1或图6中E2所示。其他实施方式中，该步骤S62亦可直接以脸部区域的上方三分之一处为观看者的眼部区域。Step S62: Theeye detection unit 152 detects the eye area of the viewer according to the obtained face area, as shown in E1 in FIG. 5 or E2 in FIG. 6 . In other implementation manners, the step S62 may also directly use the upper third of the face area as the viewer's eye area.

步骤S63：所述中线位置计算单元153计算图像的中线位置，如图5中虚线M1或图6中虚线M2所示。Step S63: the midlineposition calculation unit 153 calculates the midline position of the image, as shown by the dotted line M1 in FIG. 5 or the dotted line M2 in FIG. 6 .

步骤S64：所述比较单元156比较图像中观看者眼部区域的位置与图像的中线位置。若同一图像中观看者眼部区域的位置与图像的中线位置不重合(如图5所示)，则执行步骤S65。若同一图像中观看者眼部区域的位置与图像的中线位置重合(如图6所示)，则表明此时显示屏10处于合适的位置，观看者可通过显示屏10观看到合适的广告内容。Step S64: Thecomparison unit 156 compares the position of the viewer's eye region in the image with the centerline position of the image. If the position of the viewer's eye region in the same image does not coincide with the midline position of the image (as shown in FIG. 5 ), step S65 is executed. If the position of the eye region of the viewer in the same image coincides with the centerline position of the image (as shown in Figure 6), it indicates that thedisplay screen 10 is in a suitable position at this time, and the viewer can watch suitable advertisement content through thedisplay screen 10 .

步骤S65：所述比较单元156根据比较结果发送对应的比较信号至所述控制单元158。Step S65: thecomparison unit 156 sends a corresponding comparison signal to thecontrol unit 158 according to the comparison result.

步骤S66：所述控制单元158对应控制显示屏10运动，之后执行步骤S61。Step S66: thecontrol unit 158 correspondingly controls the movement of thedisplay screen 10, and then executes step S61.

该实施方式中所述观看者的数量为一人，若其他实施方式中观看者的数量为多个，则需要根据每一观看者的眼部区域的位置得到其平均位置，且所述比较单元156比较同一图像中该平均位置与图像的中线位置是否重合。若该平均位置与图像的中线位置重合，则执行步骤S75，相反则表明此时显示屏10处于合适的位置。其中，上述平均位置可以理解为该等眼部区域的位置的平均高度，每一眼部区域的位置的高度以该图像的底部作为原点。In this embodiment, the number of viewers is one person. If there are multiple viewers in other embodiments, it is necessary to obtain the average position of the eye area of each viewer, and thecomparison unit 156 Compare whether this average position coincides with the midline position of the image in the same image. If the average position coincides with the centerline position of the image, step S75 is executed; otherwise, it indicates that thedisplay screen 10 is in a proper position at this time. Wherein, the above-mentioned average position can be understood as the average height of the positions of the eye regions, and the height of the position of each eye region takes the bottom of the image as the origin.

上述广告板可通过摄像头拍摄观看者的图像，并对得到的图像进行处理以对应调整显示屏的高度，以使得观看者能轻松地观看到合适的广告内容。The above-mentioned advertising board can capture images of viewers through a camera, and process the obtained images to adjust the height of the display screen accordingly, so that viewers can easily watch appropriate advertisement content.

Claims (10)

1. a display screen Adjustment System is used for the height that corresponding different beholder adjusts display screen, and described display screen Adjustment System comprises:

One face's detecting unit, be used to receive the captured image that obtains of camera that is arranged at display screen midline position place from, and image is carried out face detect, to judge whether have face area in the image, if have face area in the image, then by the face area that obtains being calculated to obtain the position of ocular in the face area;

One midline position computing unit, the midline position of the image that is used to calculate;

One comparing unit, whether the position that is used for the ocular in the more same image face area overlaps with the midline position of this image, if the position of beholder's ocular overlaps with the midline position of this image and shows that then described display screen adjusted is to suitable height in the same image, if the position of beholder's ocular does not overlap with the midline position of this image in the same image, described comparing unit then sends corresponding comparison signal; And

One control module is used for adjusting according to comparison signal when not overlapping with the midline position of this image in the position of same image beholder ocular the height of display screen.

2. display screen Adjustment System as claimed in claim 1 is characterized in that: 1/3rd places, top with beholder's face area are the position of ocular.

3. a display screen Adjustment System is used for the height that corresponding different beholder adjusts display screen, and described display screen Adjustment System comprises:

One face's detecting unit is used to receive the captured image that obtains of camera that is arranged at display screen midline position place from, and image is carried out face's detecting, to judge whether have face area in the image;

One eye detecting unit if having face area in the image, is then detected to obtain the position of ocular in the face area the face area that obtains by this eye detecting unit;

One midline position computing unit, the midline position of the image that is used to calculate;

One comparing unit, whether the position that is used for the ocular in the more same image face area overlaps with the midline position of this image, if the position of beholder's ocular overlaps with the midline position of this image and shows that then described display screen adjusted is to suitable height in the same image, if the position of beholder's ocular does not overlap with the midline position of this image in the same image, described comparing unit then sends corresponding comparison signal; And

One control module is used for adjusting according to comparison signal when not overlapping with the midline position of this image in the position of same image beholder ocular the height of display screen.

4. a display screen method of adjustment is used for the height that corresponding different beholder adjusts a display screen, and described display screen method of adjustment comprises:

Face's detecting step: reception is arranged at the captured image that obtains of camera at display screen midline position place from one, and image is carried out face detect, to judge whether have face area in the image;

Ocular detecting step: the position that when having face area in the image, obtains ocular in the face area;

Midline position calculation procedure: according to the midline position of the image calculation image that obtains;

Comparison step: whether the position of beholder's ocular overlaps with the midline position of this image in the more same image, if the position of beholder's ocular overlaps with the midline position of this image and shows that then described display screen adjusted is to suitable height in the same image, if the position of beholder's ocular does not overlap with the midline position of this image in the same image, then send corresponding comparison signal; And

Set-up procedure: the height of adjusting display screen according to comparison signal by a telecontrol equipment.

5. display screen method of adjustment as claimed in claim 4 is characterized in that: 1/3rd places, top with beholder's face area in the described ocular detecting step are beholder's ocular.

6. display screen method of adjustment as claimed in claim 4 is characterized in that: by an eye detecting unit face area that obtains is detected to obtain beholder's ocular in the described ocular detecting step.

7. a billboard comprises:

One display screen;

One support;

One telecontrol equipment, described support links to each other with display screen by telecontrol equipment, and described display screen can change its height by telecontrol equipment;

One is arranged at the camera at the midline position place of described display screen, is used to take the image in display screen the place ahead; And

One Adjustment System, be used for the image that obtains is handled, to judge that whether having the beholder in the image exists, if have the beholder to exist in the image, then whether the position that this image is handled with the ocular of beholder in the movement images overlaps with the midline position of this image, if the position of beholder's ocular does not overlap with the midline position of this image in the same image, then adjust the height of display screen, so that the position of beholder's ocular overlaps with the midline position of this image in the same image according to comparative result controlled motion device.

8. billboard as claimed in claim 7 is characterized in that: described telecontrol equipment comprises that a motor, is fixed on the motor axle and a cylindrical gear and a corresponding spur gear that is meshed with described cylindrical gear that is arranged at the described display screen back side by described motor driven.

9. billboard as claimed in claim 7 is characterized in that: described Adjustment System comprises:

One face's detecting unit, be used to receive from the captured image that obtains of camera, and image is carried out face detect, to judge whether have face area in the image, if have face area in the image, then by the face area that obtains being calculated to obtain the position of ocular in the face area;

One midline position computing unit, the midline position of the image that is used to calculate;

One comparing unit, whether the position that is used for the ocular in the more same image face area overlaps with the midline position of this image, if the position of beholder's ocular overlaps with the midline position of this image and shows that then described billboard adjusted is to suitable height in the same image, if the position of beholder's ocular does not overlap with the midline position of this image in the same image, described comparing unit then sends corresponding comparison signal; And

One control module is used for adjusting according to comparison signal when not overlapping with the midline position of this image in the position of same image beholder ocular the height of display screen.

10. billboard as claimed in claim 9 is characterized in that: described Adjustment System comprises:

One face's detecting unit is used to receive the captured image that obtains of camera that is arranged at display screen midline position place from, and image is carried out face's detecting, to judge whether have face area in the image;

One eye detecting unit if having face area in the image, then calculates to obtain the position of ocular in the face area the face area that obtains by this eye detecting unit;

One midline position computing unit, the midline position of the image that is used to calculate;

One comparing unit, whether the position that is used for the ocular in the more same image face area overlaps with the midline position of this image, if the position of beholder's ocular overlaps with the midline position of this image and shows that then described display screen adjusted is to suitable height in the same image, if the position of beholder's ocular does not overlap with the midline position of this image in the same image, described comparing unit then sends corresponding comparison signal; And

One control module is used for adjusting according to comparison signal when not overlapping with the midline position of this image in the position of same image beholder ocular the height of display screen.

Images