CN102842291A - Backlight adjusting system and method based on frontal-view face detection - Google Patents
Backlight adjusting system and method based on frontal-view face detection Download PDFInfo
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- CN102842291A CN102842291A CN201210322881XA CN201210322881A CN102842291A CN 102842291 A CN102842291 A CN 102842291A CN 201210322881X A CN201210322881X A CN 201210322881XA CN 201210322881 A CN201210322881 A CN 201210322881A CN 102842291 A CN102842291 A CN 102842291A
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Abstract
The invention discloses a backlight adjusting system and method based on frontal-view face detection. The system comprises an image collecting module, an information processing module and a display driving control module, wherein the image collecting module is used for collecting head image or video information of a user by image collecting equipment as source information of information processing; the information processing module is used for processing the head image or video information collected by the image collecting module, identifying and capturing a face image, judging whether the face image is an image of a frontal-view face or not, controlling backlight brightness of a display screen according to a judging result and transmitting a control signal to the display driving control module; and the display driving control module is used for receiving the display screen backlight brightness control signal transmitted by the information processing module and adjusting the backlight brightness of the display screen.
Description
Technical field
The present invention relates to technical fields such as sensor technology, Flame Image Process, specifically, relate to a kind of back light adjusting system and method that detects based on front face.
Background technology
To the care of consumer psychology emotion and based on the design of consumer's use habit be " people-oriented ", " human oriented design " theory certainly with perfect, be the indispensable aspect of current product design.
At our the daily intelligent terminal that touches; In notebook computer, mobile phone, pad series products, audio/video player and various sector application built-in terminal; LCDs is important system unit, and sharpness is increasingly high, and size is increasing; Simultaneously the power consumption of LCDs is also more and more obvious, in time close LCDs backlight be one of the main mode of control terminal power consumption.
The backlight control mode of general LCDs is following:
1. the mode of operation of terminal device is set,, under the mains-supplied situation, can keeps Chang Liang backlight like notebook computer; Under battery powered mode, then need setting terminal equipment at energy saver mode.
2. under energy saver mode, after terminal equipment user interface does not have the input certain time interval T, then the backlight illumination of terminal device is turned down or closed the backlight of display screen fully, reach purpose of energy saving.T generally is a Fixed Time Interval of default, can not adjust according to the actual conditions of terminal works.
In actual application, above-mentioned method for controlling backlight thereof can be obtained certain energy-saving effect, but also brings some inconvenience to the user, such as:
1. in the panel discussion process; A document file page possibly need to discuss the long time; If apparatus settings energy saver mode, then the user need frequent within a certain period of time to system's input, like rolling mouse, knock keyboard or through the contact touch-screen; To avoid the terminal to get into energy saver mode, close display screen and show.And each terminal returns to the time that normal display screen brightness all needs several seconds from energy saver mode, can have influence on the continuity of user's thinking, causes the inconvenience in the use.
2. in mobile phone or pad series products; The user possibly depended on the interest of user to content of pages carrying out reading documents, browsing page or appreciating operation such as picture, and the time that is spent each page user possibly be not quite similar; For the interested page of user; May spend the long time, in this process, what the user also must be frequent turns down brightness of display screen or closes display screen to avoid the terminal to the terminal system input.
In the electronic product develop rapidly, under the application background particularly portable, that embedded product is propagated its belief on a large scale, the user can use electronic product to carry out the work or recreation and amusement in any occasion almost.Under this background, the input and output at terminal just must adapt to user's custom as much as possible.Existing terminal backlight control method can not be regulated the shut-in time backlight according to use scene automated intelligent automatically, and must cause inconvenience to the user by means of user's frequent input, has reduced the user friendly characteristic of product to a great extent.
Summary of the invention
The technical matters that the present invention will solve provides a kind of back light adjusting system and method that detects based on front face, effectively solves the terminal device display backlight and closes the inconvenience that causes to the user automatically, has promoted customer experience greatly.
The present invention adopts following technical scheme to realize goal of the invention:
A kind of back light adjusting system that detects based on front face is characterized in that, comprises like lower module:
Image capture module:, gather user's head image or video information, as the source information of information processing through image capture device;
Message processing module: handle image or video information that image capture module is gathered, face image is also caught in identification, judges whether it is front face, according to judged result control display screen backlight illumination, and control signal is sent to the display driver control module;
Display driver control module: receive the display backlight brightness control signal that message processing module sends, the brightness of adjustment display backlight.
Further qualification as to the present technique scheme also comprises:
The backlight control pattern is provided with module: the backlight control pattern of terminal device is set, comprises manual setting and dual mode is set automatically.
The invention also discloses a kind of backlight adjusting method that detects based on front face, it is characterized in that, comprise the steps:
(1) setting of backlight control pattern is set, comprises manual setting and dual mode is set automatically;
(2) IMAQ adopts picture pick-up device to obtain user's image or video information, and passes to message processing module through the input interface of message processing module;
(3) information processing is handled the image or the video information that receive, carries out front face and detects, and whether pays close attention to display screen according to the testing result judges, and the control signal of output control display screen backlight illumination is to the display driver control module;
(4) display driver control according to the display backlight brightness control signal from message processing module output, drives display screen, regulates backlight illumination.
As the further qualification to the present technique scheme, said step (3) comprises the steps:
(3.1) message processing module is handled image or the video information received, judges whether people's face is front face, is paying close attention to screen if message processing module is judged the user, and then display screen backlight continues to remain on opening; If user's sight line breaks away from screen, and, then adjust display backlight and get into energy saver mode through prior setting-up time.
Compared with prior art; Advantage of the present invention and good effect are: the present invention is through the front face detection technique; In conjunction with conventional backlight timer control mode; Can effectively solve the terminal device display backlight and close the inconvenience that causes to the user automatically, promote customer experience greatly, embody the design concept of terminal device " people-oriented ".And; The front face detection technique is less demanding for the sharpness of image with respect to other technology (like eye tracking), image big or small also can be compressed to very little; Such as adopting the 30*30 size, therefore, the entire process degree only need spend memory headroom seldom.
See that from the angle of Terminal Design the size of display screen is increasing, it is carried out low power consumption control is the indispensable function in terminal; Camera has become the standard configuration of current terminal device such as notebook, mobile phone, pad series products; And the processor processes ability of terminal device is also more and more stronger, realizes that the detection of people's face can not cause extra burden.Design of the present invention can promote the user friendly of product design greatly under not extra increase terminal device condition of cost, have tangible using value.
Description of drawings
Fig. 1 is the functional-block diagram of the preferred embodiment of the present invention.
Fig. 2 is the process flow diagram of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the present invention is made detailed description further.
Referring to Fig. 1 and Fig. 2, the present invention includes the backlight control pattern module, image capture module, message processing module, display driver control module are set.
Image capture module:, gather user's head image or video information, as the source information of information processing through image capture device;
Message processing module: handle image or video information that image capture module is gathered; Identification is also caught face image, through the front face sorter, judges whether it is front face; According to judged result control display screen backlight illumination, and control signal sent to the display driver control module;
Display driver control module: receive the display backlight brightness control signal that message processing module sends, the brightness of adjustment display backlight.
The backlight control pattern is provided with module: the backlight control pattern of terminal device is set, comprises manual setting and dual mode is set automatically.Method to set up comprises manual setting and is provided with automatically: manually be provided with, in terminal device, directly manually be set to the adjustment modes intelligent backlight that detects based on front face; Automatically be provided with, backlight mode be set when terminal device part software startup automatically get into the adjustment modes intelligent backlight that detects based on front face, like mobile phone browser, text reading device etc.
The invention also discloses a kind of backlight adjusting method that detects based on front face, comprise the steps:
(1) setting of backlight control pattern is set, comprises manual setting and dual mode is set automatically, manually be arranged on the adjustment modes intelligent backlight that directly manually is set in the terminal device based on the front face detection; Automatically be provided with the adjustment modes intelligent backlight that the backlight mode entering detects based on front face is set when terminal device part software startup automatically, like mobile phone browser, text reading device etc.;
(2) IMAQ adopts CCD or CMOS camera to obtain user's image or video information, and passes to message processing module through the input interface of message processing module;
(3) information processing is handled the image or the video information that receive, carries out front face and detects, and obtains people's face directional information, and concrete steps are following:
At first, input picture S is carried out front face detect, judge whether to exist front face, judgment mode adopts prior art, repeats no more at this.If front face detects successfully, think that then the user is paying close attention to display screen, keep display backlight Chang Liang; If front face detects failure, think that then user's sight line left display screen, and after through the time of realizing setting, then export backlight control signal and make display screen get into energy saver mode.
(4) display driver control according to the display backlight brightness control signal from message processing module output, drives display screen, regulates backlight illumination.
Said step (3) comprises the steps:
(3.1) message processing module is handled image or the video information received, judges whether people's face is front face, is paying close attention to screen if message processing module is judged the user, and then display screen backlight continues to remain on opening; If user's sight line breaks away from screen, and, then adjust display backlight and get into energy saver mode through prior setting-up time.
Certainly, above-mentioned explanation is not a limitation of the present invention, and the present invention also is not limited only to above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also belong to protection scope of the present invention.
Claims (4)
1. a back light adjusting system that detects based on front face is characterized in that, comprises like lower module:
Image capture module:, gather user's head image or video information, as the source information of information processing through image capture device;
Message processing module: handle image or video information that image capture module is gathered, face image is also caught in identification, judges whether it is front face, according to judged result control display screen backlight illumination, and control signal is sent to the display driver control module;
Display driver control module: receive the display backlight brightness control signal that message processing module sends, the brightness of adjustment display backlight.
2. according to the said back light adjusting system that detects based on front face of claim 1, it is characterized in that, also comprise:
The backlight control pattern is provided with module: the backlight control pattern of terminal device is set, comprises manual setting and dual mode is set automatically.
3. a backlight adjusting method that detects based on front face is characterized in that, comprises the steps:
(1) setting of backlight control pattern is set, comprises manual setting and dual mode is set automatically;
(2) IMAQ adopts picture pick-up device to obtain user's image or video information, and passes to message processing module through the input interface of message processing module;
(3) information processing is handled the image or the video information that receive, carries out front face and detects, and whether pays close attention to display screen according to the testing result judges, and the control signal of output control display screen backlight illumination is to the display driver control module;
(4) display driver control according to the display backlight brightness control signal from message processing module output, drives display screen, regulates backlight illumination.
4. according to the said backlight adjusting method that detects based on front face of claim 1, it is characterized in that said step (3) comprises the steps:
(3.1) message processing module is handled image or the video information received, judges whether people's face is front face, is paying close attention to screen if message processing module is judged the user, and then display screen backlight continues to remain on opening; If user's sight line breaks away from screen, and, then adjust display backlight and get into energy saver mode through prior setting-up time.
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| CN107679506A (en) * | 2017-10-12 | 2018-02-09 | Tcl通力电子（惠州）有限公司 | Awakening method, intelligent artifact and the computer-readable recording medium of intelligent artifact |
| CN108347814A (en) * | 2018-03-02 | 2018-07-31 | 青岛海尔智能家电科技有限公司 | A kind of method for controlling backlight thereof of switch, control device and switch |
| CN108847191A (en) * | 2018-07-12 | 2018-11-20 | 广州视源电子科技股份有限公司 | Backlight regulating system and its backlight adjusting method, device and intelligent interaction device |
| CN109040414A (en) * | 2017-06-12 | 2018-12-18 | 上海耕岩智能科技有限公司 | A kind of method that terminal and terminal display brightness are adjusted |
| CN109712549A (en) * | 2018-12-24 | 2019-05-03 | 深圳市巨烽显示科技有限公司 | A kind of method and device for saving display energy consumption |
| CN110113648A (en) * | 2019-05-16 | 2019-08-09 | 济南浪潮高新科技投资发展有限公司 | Energy saving television control system and TV |
| CN110534073A (en) * | 2019-07-30 | 2019-12-03 | 华为技术有限公司 | A kind of screen luminance adjustment method and device |
| CN110572596A (en) * | 2019-09-11 | 2019-12-13 | 深圳创维－Rgb电子有限公司 | television and backlight control method and device thereof and readable storage medium |
| CN110659008A (en) * | 2019-08-27 | 2020-01-07 | 努比亚技术有限公司 | Terminal interface display method, terminal and computer readable storage medium |
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| CN109040414A (en) * | 2017-06-12 | 2018-12-18 | 上海耕岩智能科技有限公司 | A kind of method that terminal and terminal display brightness are adjusted |
| WO2018228010A1 (en) * | 2017-06-12 | 2018-12-20 | 上海耕岩智能科技有限公司 | Terminal and method for adjusting display brightness of terminal |
| CN107679506A (en) * | 2017-10-12 | 2018-02-09 | Tcl通力电子（惠州）有限公司 | Awakening method, intelligent artifact and the computer-readable recording medium of intelligent artifact |
| CN108347814A (en) * | 2018-03-02 | 2018-07-31 | 青岛海尔智能家电科技有限公司 | A kind of method for controlling backlight thereof of switch, control device and switch |
| CN108847191A (en) * | 2018-07-12 | 2018-11-20 | 广州视源电子科技股份有限公司 | Backlight regulating system and its backlight adjusting method, device and intelligent interaction device |
| CN109712549A (en) * | 2018-12-24 | 2019-05-03 | 深圳市巨烽显示科技有限公司 | A kind of method and device for saving display energy consumption |
| CN110113648A (en) * | 2019-05-16 | 2019-08-09 | 济南浪潮高新科技投资发展有限公司 | Energy saving television control system and TV |
| CN110534073A (en) * | 2019-07-30 | 2019-12-03 | 华为技术有限公司 | A kind of screen luminance adjustment method and device |
| CN110659008A (en) * | 2019-08-27 | 2020-01-07 | 努比亚技术有限公司 | Terminal interface display method, terminal and computer readable storage medium |
| CN110572596A (en) * | 2019-09-11 | 2019-12-13 | 深圳创维－Rgb电子有限公司 | television and backlight control method and device thereof and readable storage medium |
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