CN106210536A - A kind of screen luminance adjustment method, device and terminal - Google Patents
A kind of screen luminance adjustment method, device and terminal Download PDFInfo
- Publication number
- CN106210536A CN106210536A CN201610633059.3A CN201610633059A CN106210536A CN 106210536 A CN106210536 A CN 106210536A CN 201610633059 A CN201610633059 A CN 201610633059A CN 106210536 A CN106210536 A CN 106210536A
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- screen
- face
- distance
- screen intensity
- environmental light
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention provides a kind of screen luminance adjustment method, device and terminal and include that S100 detects environmental light brightness；If the described environmental light brightness that S101 photographic head reads is less than first threshold, then starts Face datection, and determine face key point；S102 measures the average departure distance values of described face key point；S103, according to distance and screen intensity multi-level lookup table, obtains screen intensity grade, adjusts screen intensity.The present invention makes to make subject or personage become apparent under low-light (level) environment by the method for face distance regulation screen intensity, and shooting effect is more preferable, and meanwhile, this method promotes Consumer's Experience in auto heterodyne scene.
Description
Technical field
The present embodiments relate to an act brightness regulation, particularly relate to screen luminance adjustment method, device and terminal.
Background technology
Along with the sustained and rapid development of electronic and information industry, the camera function of smart mobile phone is also the most progressive.Use intelligence
Mobile phone carries out autodyning and is increasingly liked by users, has started the explosive growth of various shooting mobile phone the most simultaneously.But,
When we are during taking pictures, if target scene ambient brightness is dark, imaging sensor under the conditions of exposure sufficiently, we
It can be seen that we are still difficult to shooting understands face.In the case of how making environmental light brightness dark, can be by face shooting clear
It it is a current difficult problem.
Summary of the invention
It is an object of the invention to provide a kind of screen luminance adjustment method, device and terminal.
The present invention provides a kind of screen luminance adjustment method, including:
S100 detects environmental light brightness；
If described environmental light brightness acquired for S101 is less than first threshold, then starts Face datection, and detect further
Face key point；；
S102 measures the average departure distance values of described face key point；
S103, according to distance and screen intensity multi-level lookup table, obtains screen intensity grade, adjusts screen intensity.
Preferably, described distance and screen intensity multi-level lookup table are preset form.
Preferably, described S102 can be found range by laser ranging or dual camera.
Preferably, the range finding of described dual camera also includes preset two cam lens parallax depth ranging table.
Preferably, when there being multiple human face target, the face being in picture centre region is defined as target face.
The present invention also provides for a kind of screen brightness regulating device, including:
Environmental light brightness detection module, is used for utilizing photographic head to detect environmental light brightness；
Face detection module, if acquired described environmental light brightness is less than first threshold, then starts Face datection, goes forward side by side
One step detection face key point；；
Distance-measurement module, measures the average departure distance values of described face key point；
Luminance adjustment module, according to distance and screen intensity multi-level lookup table, obtains screen intensity grade, adjusts screen bright
Degree.
Preferably, described distance and screen intensity multi-level lookup table are preset form and are stored in memorizer.
Preferably, described distance-measurement module includes laser range sensor or photographic head range finder module.
Preferably, described photographic head range finder module also includes preset two cam lens parallax depth ranging table, and
It is stored in memorizer.
Preferably, described Face datection unit, the face being in picture centre region is defined as target face.
The present invention also provides for a kind of terminal, including an any of the above-described described screen brightness regulating device.
The invention has the beneficial effects as follows, the present invention is made at low-light (level) ring by the method for face distance regulation screen intensity
Subject or personage can be made under border to become apparent from, and shooting effect is more preferable, and meanwhile, this method promotes user's body in auto heterodyne scene
Test.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the method schematic diagram of screen intensity of the present invention regulation；
Fig. 2 is screen brightness regulating device structural representation of the present invention.
Reference:
Environmental light brightness detection module 201, face detection module 202, distance-measurement module 203, luminance adjustment module
204。
S100～S103 step.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the method schematic diagram of screen intensity of the present invention regulation, including: S100 detects environmental light brightness；S101
If acquired described environmental light brightness is less than first threshold, then start Face datection, and detection face key point further；；
S102 measures the average departure distance values of described face key point；S103, according to distance and screen intensity multi-level lookup table, obtains screen
Brightness degree, adjusts screen intensity.
Embodiment one
Described S100 detection environmental light brightness can be the light sensor perception surrounding brightness carried by terminal
Can also be obtained by other modes general in industry.The environmental light brightness detected by described S100 is carried out with luminance threshold
Relatively, if the environmental light brightness that S100 detects is more than or equal to described luminance threshold, subsequent step is not the most carried out；If environment bright
Degree less than described luminance threshold, then performs follow-up Face datection step, and described Face datection step preferably detects in the middle of picture
Face, and determine face key point.Carry out S102 subsequently and measure the average departure distance values of face key point, in the present embodiment, adopt
Find range with dual camera, it is necessary first to two cam lens parallax depth ranging table of off-line calibration, subsequently according to dual camera
The face parallax depth measured carries out range estimation by described preset parallax depth ranging table.Record face key point
After average departure distance values, perform S103, according to distance and screen intensity multi-level lookup table, obtain screen intensity grade, adjust screen
Brightness.Described distance is also the preset form of off-line calibration with screen intensity multi-level lookup table.
Embodiment two
Described S100 detection environmental light brightness can be the light sensor perception surrounding brightness carried by terminal
Can also be obtained by other modes general in industry.The environmental light brightness detected by described S100 is carried out with luminance threshold
Relatively, if the environmental light brightness that S100 detects is more than or equal to described luminance threshold, subsequent step is not the most carried out；If environment bright
Degree less than described luminance threshold, then performs follow-up Face datection step, and described Face datection step preferably detects in the middle of picture
Face, and determine face key point.Carry out subsequently S102 measure face key point average departure distance values, in the present embodiment,
Using laser ranging detection in the present embodiment, described laser range sensor is another device in terminal, takes the photograph for measurement
As the distance of head with face, owing to the focal length of dual camera range finding two photographic head of needs is identical, but in order to preferably catch
Target, we wish that again the focal length of dual camera is different, and the focal length making dual camera is complementary, so in order to preferably realize this
Bright effect, we have employed external range sensor, in the present embodiment as a example by laser range sensor, illustrates.But
Being to skilled person will appreciate that, other sensors that can realize distance measurement function are the most within the scope of the present invention.Record
After the average departure distance values of face key point, perform S103, according to distance and screen intensity multi-level lookup table, obtain screen intensity etc.
Level, adjusts screen intensity.Described distance is also the preset form of off-line calibration with screen intensity multi-level lookup table.
Further, in both examples above, when there being multiple human face target, the face in picture centre region will be in
It is defined as target face.
The present invention also protects a kind of screen brightness regulating device, including: environmental light brightness detection module 201, it is used for utilizing
Photographic head detection environmental light brightness；Face detection module 202, if the described environmental light brightness that photographic head reads is less than the first threshold
Value, then start Face datection, and determine face key point；Distance-measurement module 203, measures the average departure of described face key point
Distance values；Luminance adjustment module 204, according to distance and screen intensity multi-level lookup table, obtains screen intensity grade, adjusts screen bright
Degree.In a preference of the present embodiment, described distance-measurement module includes laser range sensor or photographic head range finding mould
Block.Described laser range sensor is independent of photographic head, for measuring the distance value of photographic head and face.Survey according to double shootings
Then also need to preset two cam lens parallax depth ranging table away from module, and be stored in memorizer.So, make at needs
Have only to the when of with preset form transfer in memory and use.The face detection module 202 of the present invention is arranged to,
Preferential demarcation is in the face key point in picture centre region.
The present invention also protects a kind of terminal, including an any of the above-described described screen brightness regulating device.
The present invention makes make subject under low-light (level) environment by the method for face distance regulation screen intensity
Or personage becomes apparent from, shooting effect is more preferable, and meanwhile, this method promotes Consumer's Experience in auto heterodyne scene.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (11)
1. a screen luminance adjustment method, it is characterised in that including:
S100 detects environmental light brightness；
If described environmental light brightness acquired for S101 is less than first threshold, then starts Face datection, and detect face further
Key point；
S102 measures the average departure distance values of described face key point；
S103, according to distance and screen intensity multi-level lookup table, obtains screen intensity grade, adjusts screen intensity.
Screen luminance adjustment method the most according to claim 1, it is characterised in that described distance is looked into screen intensity grade
Looking for table is preset form.
Screen luminance adjustment method the most according to claim 1, it is characterised in that: described S102 can pass through laser ranging
Or dual camera is found range.
Screen luminance adjustment method the most according to claim 3, it is characterised in that: the range finding of described dual camera also includes pre-
Put two cam lens parallax depth ranging table.
Screen luminance adjustment method the most according to claim 1, it is characterised in that: when there being multiple human face target, at general
Face in picture centre region is defined as target face.
6. a screen brightness regulating device, it is characterised in that: including:
Environmental light brightness detection module, is used for utilizing photographic head to detect environmental light brightness；
Face detection module, if the described environmental light brightness that photographic head reads is less than first threshold, then starts Face datection, and really
Determine face key point；
Distance-measurement module, measures the average departure distance values of described face key point；
Luminance adjustment module, according to distance and screen intensity multi-level lookup table, obtains screen intensity grade, adjusts screen intensity.
Screen brightness regulating device the most according to claim 6, it is characterised in that described distance is looked into screen intensity grade
Table is looked for be preset form and be stored in memorizer.
Screen brightness regulating device the most according to claim 6, it is characterised in that described distance-measurement module includes laser
Distance measuring sensor or photographic head range finder module.
Screen brightness regulating device the most according to claim 8, it is characterised in that described photographic head range finder module also includes
Two preset cam lens parallax depth ranging table, and be stored in memorizer.
Screen brightness regulating device the most according to claim 6, it is characterised in that described Face datection unit, will be in
The face in picture centre region is defined as target face.
11. 1 kinds of terminals, it is characterised in that include the screen intensity described in arbitrary claim in claim 6～10
Adjusting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633059.3A CN106210536A (en) | 2016-08-04 | 2016-08-04 | A kind of screen luminance adjustment method, device and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633059.3A CN106210536A (en) | 2016-08-04 | 2016-08-04 | A kind of screen luminance adjustment method, device and terminal |
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| CN106210536A true CN106210536A (en) | 2016-12-07 |
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| CN201610633059.3A Pending CN106210536A (en) | 2016-08-04 | 2016-08-04 | A kind of screen luminance adjustment method, device and terminal |
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| CN107277388A (en) * | 2017-07-27 | 2017-10-20 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and its light compensation method |
| CN108445643A (en) * | 2018-03-12 | 2018-08-24 | 广东欧珀移动通信有限公司 | Project structured light module and its detection method obtain structure and electronic device with device, image |
| CN109151217A (en) * | 2018-10-31 | 2019-01-04 | 北京小米移动软件有限公司 | Backlight mode method of adjustment and device |
| CN110533971A (en) * | 2019-07-19 | 2019-12-03 | 山东至信信息科技有限公司 | A kind of intelligent tutoring system deeply interacted |
| CN110930964A (en) * | 2019-12-11 | 2020-03-27 | Tcl移动通信科技（宁波）有限公司 | Display screen brightness adjusting method and device, storage medium and terminal |
| CN112188059A (en) * | 2020-09-30 | 2021-01-05 | 深圳市商汤科技有限公司 | Wearable device, intelligent guiding method and device and guiding system |
| CN113175847A (en) * | 2021-06-01 | 2021-07-27 | 江苏北方湖光光电有限公司 | Brightness self-adaption device and method suitable for quick sighting device |
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| CN107277388A (en) * | 2017-07-27 | 2017-10-20 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and its light compensation method |
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| CN108445643A (en) * | 2018-03-12 | 2018-08-24 | 广东欧珀移动通信有限公司 | Project structured light module and its detection method obtain structure and electronic device with device, image |
| CN109151217A (en) * | 2018-10-31 | 2019-01-04 | 北京小米移动软件有限公司 | Backlight mode method of adjustment and device |
| CN110533971A (en) * | 2019-07-19 | 2019-12-03 | 山东至信信息科技有限公司 | A kind of intelligent tutoring system deeply interacted |
| CN110930964A (en) * | 2019-12-11 | 2020-03-27 | Tcl移动通信科技（宁波）有限公司 | Display screen brightness adjusting method and device, storage medium and terminal |
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| CN113175847A (en) * | 2021-06-01 | 2021-07-27 | 江苏北方湖光光电有限公司 | Brightness self-adaption device and method suitable for quick sighting device |
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Effective date of registration: 20180223 Address after: 330008 Jiangxi Province, Nanchang Qingshan Lake Economic and Technological Development Zone of Nanchang Jiao Town Office Building Room 319 Applicant after: Nanchang shark Technology Co. Ltd. Address before: 518063 Guangdong city of Shenzhen province Nanshan District Wei new software park building 1 floor 2 South Applicant before: SHENZHEN ZEUSIS TECHNOLOGY CO., LTD. |
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Application publication date: 20161207 |