CN104333709A - Method, device and electronic equipment for controlling flash lamp - Google Patents
Method, device and electronic equipment for controlling flash lamp Download PDFInfo
- Publication number
- CN104333709A CN104333709A CN201410717800.5A CN201410717800A CN104333709A CN 104333709 A CN104333709 A CN 104333709A CN 201410717800 A CN201410717800 A CN 201410717800A CN 104333709 A CN104333709 A CN 104333709A
- Authority
- CN
- China
- Prior art keywords
- image
- pupil
- user
- capture device
- actual size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H04N23/71—Circuitry for evaluating the brightness variation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Stroboscope Apparatuses (AREA)
Abstract
The invention discloses a method, a device and electronic equipment for controlling a flash lamp, aiming to increase the control accuracy of the flash lamp. The method comprises the following steps: obtaining the actual size of pupils of a user in a current shooting environment; and controlling the flash intensity of the flash lamp according to the actual size of the pupils. According to the embodiment of the method, the device and the electronic equipment, the possibility of interference in the process of ambient light detection is greatly reduced, thereby increasing the control accuracy of the flash lamp.
Description
Technical field
The present invention relates to IMAQ control technology field, particularly a kind of method, device and electronic equipment that photoflash lamp is controlled.
Background technology
Along with the development of science and technology, digital image capture device or other portable electric appts possessing shoot function have become the standard configuration equipment of each user.
The use of photoflash lamp has very important effect in photography, as used flash lighting when insufficient light.
For the control of photoflash lamp, what mostly take in prior art is utilize light sensor to gather ambient brightness, and then environmentally brightness controls the unlatching whether scheme of photoflash lamp.
And there is the problem of false triggering in the scheme that the surround lighting detected according to light sensor of prior art controls photoflash lamp, is described as follows.
Generally, user needs handheld device to photograph, and when the hand of user blocks light sensor formation, then can reduce the light amount that light sensor detects, cause surround lighting detected value lower than actual value, thus cause the judgement of control algolithm mistake to need to open photoflash lamp.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of method, device and the electronic equipment that control photoflash lamp, improves the control precision that photoflash lamp controls.
To achieve these goals, embodiments provide a kind of method that photoflash lamp in image capture device is controlled, comprising:
The actual size of user's pupil under acquisition current shooting environment;
The flash intensity of described photoflash lamp is controlled according to the actual size of described pupil.
Above-mentioned method, wherein, under described acquisition current shooting environment, the actual size of user's pupil is specially:
Control the image that described image capture device collection comprises described user's pupil;
The actual size of user's pupil is calculated according to the described image collected.
Above-mentioned method, wherein, controls described image capture device collection and comprises in the step of the image of described user's pupil, control described image capture device under standard acquisition parameters, gather the original image comprising described user's pupil;
The actual size that the described image that described basis collects calculates user's pupil comprises:
Current pupil image is extracted from described original image;
The standard pupil image the most similar to described current pupil image is selected from standard picture set;
The actual size of predetermined pupil size corresponding for described standard pupil image as user's pupil is exported;
Each standard pupil image in described standard picture set is corresponding with a pupil size, and each standard pupil image is the image with the pupil of described PD photographed under standard acquisition parameters.
Above-mentioned method, wherein, the actual size of described user's pupil is actual diameter or the real area of pupil.
Above-mentioned method, wherein, the image that the collection of described control described image capture device comprises described user's pupil specifically comprises:
The first image acquisition units controlled in described image capture device carries out IMAQ;
Judge whether can identify face in the current image collected, obtain the first judged result;
When in the current image collected of the first judged result instruction, None-identified goes out face, perform handover operation, gather described first image by the second image acquisition units in described image capture device, otherwise current for the described first image acquisition units image collected is exported as described first image.
Above-mentioned method, wherein, described first image acquisition units is the front-facing camera of mobile communication terminal, and described second image acquisition units is the post-positioned pick-up head of mobile communication terminal.
Above-mentioned method, wherein, also comprises:
Before the first image acquisition units controlled in described image capture device or the second image acquisition units carry out IMAQ, the focal length arranging described first image acquisition units or the second image acquisition units is more than or equal to predetermined threshold.
Above-mentioned method, wherein, the flash intensity controlling described photoflash lamp according to the actual size of described pupil specifically comprises:
According to the actual size computing environment brightness of described pupil;
Environmentally brightness calculation light compensation rate;
The flash intensity of photoflash lamp is calculated according to described smooth compensation rate;
Control described photoflash lamp to glisten with described flash intensity.
To achieve these goals, the embodiment of the present invention additionally provides a kind of device controlled the photoflash lamp in image capture device, comprising:
Dimension acquisition module, for obtaining the actual size of user's pupil under current shooting environment;
Intensity control module, for controlling the flash intensity of described photoflash lamp according to the actual size of described pupil.
Above-mentioned device, wherein, described dimension acquisition module specifically comprises:
Gathering control unit, comprising the image of described user's pupil for controlling described image capture device collection;
Dimension calculating unit, for calculating the actual size of user's pupil according to the described image collected.
Above-mentioned device, wherein, described collection control unit gathers for controlling described image capture device the original image comprising described user's pupil under standard acquisition parameters; Described dimension calculating unit is used for extracting current pupil image from described original image, and select the standard pupil image the most similar to described current pupil image from standard picture set after, the actual size of predetermined pupil size corresponding for described standard pupil image as user's pupil is exported;
Each standard pupil image in described standard picture set is corresponding with a pupil size, and each standard pupil image is the image with the pupil of described PD photographed under standard acquisition parameters.
Above-mentioned device, wherein, the actual size of user's pupil is actual diameter or the real area of pupil.
Above-mentioned device, wherein, described collection control unit carries out IMAQ for the first image acquisition units controlled in described image capture device, and judge whether can identify face in the current image collected, when in the current image collected, None-identified goes out face, perform handover operation, gather described first image by the second image acquisition units in described image capture device, otherwise current for the described first image acquisition units image collected is exported as described first image.
Above-mentioned device, wherein, described first image acquisition units is the front-facing camera of mobile communication terminal, and described second image acquisition units is the post-positioned pick-up head of mobile communication terminal.
Above-mentioned device, wherein, also comprises:
Module is set, for controlling before the first image acquisition units in described image capture device or the second image acquisition units carry out IMAQ at described collection control unit, the focal length arranging described first image acquisition units or the second image acquisition units is more than or equal to predetermined threshold.
Above-mentioned device, wherein, described intensity control module specifically comprises:
Ambient brightness computing unit, according to the actual size computing environment brightness of described pupil;
Compensation rate computing unit, environmentally brightness calculation light compensation rate;
Flash intensity computing unit, calculates the flash intensity of photoflash lamp according to described smooth compensation rate;
Control unit, controls described photoflash lamp and glistens with described flash intensity.
To achieve these goals, the embodiment of the present invention additionally provides and a kind ofly comprises the above-mentioned electronic equipment to the device that the photoflash lamp in image capture device controls.
Directly use light sensor to carry out the detection of ambient brightness in prior art, but in a lot of situation, light sensor is all likely blocked and cause testing result to depart from actual environment brightness, and then causes photoflash lamp erroneous trigger.And in the specific embodiment of the invention, be carry out follow-up control decision based on this human body photo-sensing device of user's pupil.Relative to the situation that light sensor in prior art is blocked, the possibility that pupil is blocked reduces greatly, and therefore its interference be subject to relative to the light sensor of prior art is less, can reflect ambient light intensity more really.
Therefore relative to prior art, the embodiment of the present invention greatly reduces the possibility be interfered in surround lighting testing process, and then can improve the control precision of photoflash lamp control.
Accompanying drawing explanation
Fig. 1 represents a kind of schematic flow sheet to the method that the photoflash lamp in image capture device controls of the embodiment of the present invention;
Fig. 2 represents the schematic flow sheet of the actual size obtaining user's pupil under current shooting environment;
Fig. 3 represents the schematic flow sheet of the actual diameter only determining pupil according to image;
Fig. 4 obtains the schematic flow sheet comprising the image of described user's pupil under representing dual camera scene;
Fig. 5 represents a kind of structural representation to the device that the photoflash lamp in image capture device controls of the embodiment of the present invention.
Embodiment
In method, device and the electronic equipment that photoflash lamp is controlled of the embodiment of the present invention, control the flash intensity of photoflash lamp by the pupil area of user under current shooting environment.Because pupil area can actual response ambient light intensity, and pupil is subject to blocking the possibility that truly can not reflect that the possibility of ambient light intensity is far smaller than light sensor and is blocked, therefore relative to prior art, the embodiment of the present invention greatly reduces the possibility detecting and be interfered, and then can improve the control precision of photoflash lamp control.
A kind of method controlled the photoflash lamp in image capture device of the embodiment of the present invention, as shown in Figure 1, comprising:
Step 101, the actual size of user's pupil under acquisition current shooting environment;
Step 102, controls the flash intensity of described photoflash lamp according to the actual size of described pupil.
An important function of photoflash lamp is exactly carry out light filling in relatively dark environment, and to shoot the higher image of quality, therefore whether photoflash lamp is opened and be subject to ambient light effects to a great extent, should open photoflash lamp when surround lighting is more weak.
And be control photoflash lamp, below first to the actual size of pupil can be utilized to be explained as follows to the principle controlling photoflash lamp based on the actual size of pupil in the specific embodiment of the invention.
Iris in eyes is in the form of annular discs, and there is a small sircle hole centre, Here it is pupil, also can be referred to as " pupil ".
The size of pupil can change, comparatively constant with the light quantity entering intraocular under remaining on different light situation, both meets the demand of viewing, ensures to burn eyeball again.Generally, the variable diameter of people's pupil moves between 1.5-8.0mm, and namely the change multiplying power of the diameter of pupil can reach 5 times more than, and the light-receiving area corresponding to pupil then can change 25 times.
That is, between the size (diameter or area) of pupil and ambient brightness, there is certain corresponding relation, as long as the size of pupil can be detected, can according to the ambient brightness under the area determination current environment of pupil, and then environmentally brightness controls photoflash lamp.
Directly use light sensor to carry out the detection of ambient brightness in prior art, but in a lot of situation, light sensor is all likely blocked and cause testing result to depart from actual environment brightness, and then causes photoflash lamp erroneous trigger.And in the specific embodiment of the invention, be carry out follow-up control decision based on this human body photo-sensing device of user's pupil.Relative to the situation that light sensor in prior art is blocked, the possibility that pupil is blocked reduces greatly, and therefore its interference be subject to relative to the light sensor of prior art is less, can reflect ambient light intensity more really.
Therefore relative to prior art, the method for the embodiment of the present invention greatly reduces the possibility be interfered in surround lighting testing process, and then can improve the control precision of photoflash lamp control.
In a particular embodiment of the present invention, under acquisition current shooting environment, the actual size of user's pupil can be realized by external pupil special measurement equipment, but realize cost to reduce, in a particular embodiment of the present invention, the shoot function directly using image capture device originally to have is to obtain the actual size of pupil.
Under this mode, under described acquisition current shooting environment, the actual size of user's pupil as shown in Figure 2, comprising:
Step 201, controls the image that described image capture device collection comprises described user's pupil;
Step 202, calculates the actual size of user's pupil according to the described image collected.
Under aforesaid way, the image collecting function directly utilizing image capture device to possess gathers the image comprising pupil, and then determines the actual size of user's pupil according to image.Therefore above-mentioned mode is multiplexing image collecting function that image capture device itself has is to carry out the measurement of pupil actual size, and what reduce that photoflash lamp controls realizes cost.
In a particular embodiment of the present invention, how to utilize image can have multiple implementation to the actual size obtaining user's pupil, below to measure PD, be described as follows with regard to several modes wherein.
In mode one, obtain final pupil actual diameter by an image, be described as follows.
Shooting comprises the first image of pupil, utilizes rangefinder to be recorded as the distance of image focus to pupil, as object distance simultaneously;
Then the image height of pupil in the first image is obtained;
In the specific embodiment of the invention, obtaining image height has two kinds of modes, and the image that can directly be formed from imageing sensor obtains, and also can be shown in display screen, calculate after being indicated the summit up and down of pupil by user.When above-mentioned image height directly from imageing sensor formed image acquisition time, image distance is optical focal length, and when above-mentioned image height is from the image acquisition that display screen is formed, then image distance is the product of optical focal length and Digital Zoom.
In above-mentioned mode one, need the assistance of rangefinder.
In mode two, obtain final pupil actual diameter by two images, be described as follows.
First shooting comprises the first image of pupil, and after change object distance, shooting comprises the second image of pupil, utilizes the displacement of image picking-up apparatus between twice shooting of displacement transducer record simultaneously;
Then the first image height and second image height of pupil in the first image and the second image is obtained respectively;
The diameter that the mode that last basis is following calculates pupil is as follows:
First image height × the second image height × object distance is poor/and (the second image height × the first image distance-the first image height × the second image distance)
Wherein, image distance when the first image distance is the first image of shooting pupil, image distance when the second image distance is the second image of shooting pupil.
In the specific embodiment of the invention, obtaining image height has two kinds of modes, and the image that can directly be formed from imageing sensor obtains, and also can be shown in display screen, calculate after being indicated the summit up and down of pupil by user.When above-mentioned image height directly from imageing sensor formed image acquisition time, image distance is optical focal length, and when above-mentioned image height is from the image acquisition that display screen is formed, then image distance is the product of optical focal length and Digital Zoom.
Above-mentioned mode needs twice acquisition image finally to determine the diameter of pupil.
In above-mentioned mode two, need the assistance of displacement transducer.
Can find, in above-mentioned mode one and mode two, all need extra hardware device, as the support of rangefinder and displacement transducer, realize cost, in mode three to reduce further, only determine the actual diameter of pupil according to image, as shown in Figure 3, it comprises:
Step 301, controls described image capture device under standard acquisition parameters, gathers the original image comprising described user's pupil;
Step 302, extracts current pupil image from described original image;
Step 303, selects the standard pupil image the most similar to described current pupil image from standard picture set;
Step 304, exports the actual size of predetermined pupil size corresponding for described standard pupil image as described pupil;
Each standard pupil image in described standard picture set is corresponding with a pupil size, and each standard pupil image is the image with the pupil of described PD photographed under described standard acquisition parameters.
Above process is described as follows.
Under above-mentioned implementation, first need to set up the standard picture of pupil under different actual pupil size, now the actual pupil size of standard picture can obtain according to any means of prior art, and namely mode one described above and mode two can be used for obtaining actual pupil size.
That is, first above-mentioned mode establishes a database, save in this database pupil under different actual pupil size standard picture (due to the actual size of pupil and intensity of illumination closely related, it can by obtaining under different photoenvironments, as progressively strengthened/reducing ambient brightness with certain step-length, then take the image of pupil, now can obtain the standard picture of pupil under different actual pupil size).
After setting up above-mentioned database, the pupil image of current reality can be obtained, and then the pupil image of this current reality and standard picture are contrasted, determine the immediate standard pupil image with the pupil image of current reality, and then determine that pupil size corresponding to this immediate standard pupil image exports as the actual size that pupil is current.
Can be found by foregoing description, aforesaid way only needs to utilize image capture device to gather image, and without any need for the assistance of additional hardware equipment, realize cost because of what this reduce embodiment of the present invention scheme.
After the actual size obtaining pupil by the way, the flash intensity of described photoflash lamp can be controlled according to the actual size of described pupil.
In the process of flash intensity controlling described photoflash lamp according to the actual size of pupil, first will according to the actual size computing environment brightness of described pupil, and then environmentally brightness calculation light compensation rate, then calculate the flash intensity of photoflash lamp according to described smooth compensation rate, finally control described photoflash lamp and glisten with described flash intensity.
Control described photoflash lamp with described flash intensity carry out flash of light be by flash lamp circuit apply signal, export the signal of telecommunication be directly proportional to flash intensity value, make flash intensity reach proper exposure amount.
Can find, control in the process of the flash intensity of described photoflash lamp in the above-mentioned actual size according to pupil, need the actual size computing environment brightness according to pupil, this is described as follows.
Mention, the size of pupil can change before, comparatively constant with the light quantity entering intraocular under remaining on different light situation, both meets the demand of viewing, ensures to burn eyeball again.Therefore between the actual size (diameter or area) of pupil and ambient brightness, there is certain corresponding relation, and the corresponding relation between the actual size of this pupil and ambient brightness to be obtained by test in advance and to preserve.
After corresponding relation between the actual size and ambient brightness of pupil is preserved, the ambient brightness under current shooting environment can be calculated according to above-mentioned corresponding relation.
And the corresponding relation between the actual size of pupil and ambient brightness can be function corresponding relation therebetween.
The function of the relation wherein between a kind of suitable reflection pupil area and ambient brightness is as follows:
A＝a+be
-L/c
Wherein:
A is pupil area, and unit is square millimeter;
L is ambient brightness, and unit is candela every square metre;
A, b and c are regulation coefficient.
Corresponding relation between the actual size of certain pupil and ambient brightness also can be with forms mode record, as the actual full-size of pupil and minimum dimension are carried out 100 deciles, obtain 100 sampled points, then record the ambient brightness that each sampled point is corresponding.After obtaining the actual size of pupil, find immediate sampled point is corresponding with it ambient brightness as actual environment brightness.
Method described in the embodiment of the present invention may be used for variously having in the device of image capture device, as digital camera, the portable electric appts (as notebook computer, mobile phone, PDA, panel computer etc.) with camera.
And now much have in the electronic equipment of image collecting function, much all there is the setting of dual image collecting unit, while facilitating user to carry out autodyning, shooting effect can be seen in real time.
When the method for the specific embodiment of the invention be used for above-mentioned there is the electronic equipment of dual image collecting unit time, the collection of described control described image capture device comprises the image of described user's pupil as shown in Figure 4, specifically comprises:
Step 401, the first image acquisition units controlled in described image capture device carries out IMAQ;
Step 402, judges whether can identify face in the current image collected, obtains the first judged result;
Step 403, when in the current image collected of the first judged result instruction, None-identified goes out face, perform handover operation, gather described first image by the second image acquisition units in described image capture device, otherwise current for the described first image acquisition units image collected is exported as described first image.
By above-mentioned mode, make the method for the embodiment of the present invention for above-mentioned there is the electronic equipment of dual image collecting unit time, automatically the switching can carrying out image acquisition units, to gather the image of pupil, is carried out manual switching without the need to user, is greatly facilitated the use of user.
The first above-mentioned image acquisition units can be the front-facing camera of mobile communication terminal, and described second image acquisition units can be the post-positioned pick-up head of mobile communication terminal.
For image capture device, when focal length becomes large, be equivalent to object to have furthered bat, the effect of amplification can be played, and when focal length diminishes, larger scene can be photographed.
Mention before, need in a particular embodiment of the present invention to carry out image recognition, identify pupil wherein, and then carry out the measurement of pupil actual size.
Therefore, in order to improve the accuracy of identification, in a particular embodiment of the present invention, also comprise:
Before the first image acquisition units controlled in described image capture device or the second image acquisition units carry out IMAQ, the focal length arranging described first image acquisition units or the second image acquisition units is more than or equal to predetermined threshold.
Larger pupil can be photographed by above-mentioned arranging, make the pupil of identification more accurate, improve the precision measuring pupil actual size.And the raising of pupil actual size certainty of measurement, just can obtain ambient brightness more accurately, flash of light be controlled more accurate, finally can improve the shooting effect of image capture device.
The embodiment of the present invention additionally provides a kind of device controlled the photoflash lamp in image capture device, as shown in Figure 5, comprising:
Dimension acquisition module, for obtaining the actual size of user's pupil under current shooting environment;
Intensity control module, for controlling the flash intensity of described photoflash lamp according to the actual size of described pupil.
Above-mentioned device, wherein, described dimension acquisition module specifically comprises:
Gathering control unit, comprising the image of described user's pupil for controlling described image capture device collection;
Dimension calculating unit, for calculating the actual size of user's pupil according to the described image collected.
Above-mentioned device, wherein, described collection control unit gathers for controlling described image capture device the original image comprising described user's pupil under standard acquisition parameters; Described dimension calculating unit is used for extracting current pupil image from described original image, and select the standard pupil image the most similar to described current pupil image from standard picture set after, the actual size of predetermined pupil size corresponding for described standard pupil image as user's pupil is exported;
Each standard pupil image in described standard picture set is corresponding with a pupil size, and each standard pupil image is the image with the pupil of described PD photographed under described standard acquisition parameters.
Above-mentioned device, wherein, the actual size of described user's pupil is actual diameter or the real area of pupil.
Above-mentioned device, wherein, described collection control unit carries out IMAQ for the first image acquisition units controlled in described image capture device, and judge whether can identify face in the current image collected, when in the current image collected, None-identified goes out face, perform handover operation, gather described first image by the second image acquisition units in described image capture device, otherwise current for the described first image acquisition units image collected is exported as described first image.
Above-mentioned device, wherein, described first image acquisition units is the front-facing camera of mobile communication terminal, and described second image acquisition units is the post-positioned pick-up head of mobile communication terminal.
Above-mentioned device, wherein, also comprises:
Module is set, for controlling before the first image acquisition units in described image capture device or the second image acquisition units carry out IMAQ at described collection control unit, the focal length arranging described first image acquisition units or the second image acquisition units is more than or equal to predetermined threshold.
Above-mentioned device, wherein, described intensity control module specifically comprises:
Ambient brightness computing unit, according to the actual size computing environment brightness of described pupil;
Compensation rate computing unit, environmentally brightness calculation light compensation rate;
Flash intensity computing unit, calculates the flash intensity of photoflash lamp according to described smooth compensation rate;
Control unit, controls described photoflash lamp and glistens with described flash intensity.
The embodiment of the present invention additionally provides a kind of electronic equipment, comprises the image capture device that has photoflash lamp, it is characterized in that, also comprises the above-mentioned device controlled the photoflash lamp in described image capture device.
Above-mentioned electronic equipment can be digital camera, be provided with the various equipment such as the portable electric appts of image capture device (as notebook computer, mobile phone, PDA etc.).
The above is only the execution mode of the embodiment of the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from embodiment of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection range of the embodiment of the present invention.
Claims (17)
1. to the method that the photoflash lamp in image capture device controls, it is characterized in that, comprising:
The actual size of user's pupil under acquisition current shooting environment;
The flash intensity of described photoflash lamp is controlled according to the actual size of described user's pupil.
2. method according to claim 1, is characterized in that, under described acquisition current shooting environment, the actual size of user's pupil is specially:
Control the image that described image capture device collection comprises described user's pupil;
The actual size of user's pupil is calculated according to the described image collected.
3. method according to claim 2, it is characterized in that, control described image capture device collection to comprise in the step of the image of described user's pupil, control described image capture device under standard acquisition parameters, gather the original image comprising described user's pupil;
The actual size that the described image that described basis collects calculates user's pupil comprises:
Current pupil image is extracted from described original image;
The standard pupil image the most similar to described current pupil image is selected from standard picture set;
The actual size of predetermined pupil size corresponding for described standard pupil image as user's pupil is exported;
Each standard pupil image in described standard picture set is corresponding with a pupil size, and each standard pupil image is the image with the pupil of described PD photographed under described standard acquisition parameters.
4. according to the method in claim 2 or 3, it is characterized in that, the actual size of described user's pupil is actual diameter or the real area of pupil.
5. method according to claim 2, is characterized in that, the image that the collection of described control described image capture device comprises described user's pupil specifically comprises:
The first image acquisition units controlled in described image capture device carries out IMAQ;
Judge whether can identify face in the current image collected, obtain the first judged result;
When in the current image collected of the first judged result instruction, None-identified goes out face, perform handover operation, gather described first image by the second image acquisition units in described image capture device, otherwise current for the described first image acquisition units image collected is exported as described first image.
6. method according to claim 5, is characterized in that, described first image acquisition units is the front-facing camera of mobile communication terminal, and described second image acquisition units is the post-positioned pick-up head of mobile communication terminal.
7. method according to claim 5, is characterized in that, also comprises:
Before the first image acquisition units controlled in described image capture device or the second image acquisition units carry out IMAQ, the focal length arranging described first image acquisition units or the second image acquisition units is more than or equal to predetermined threshold.
8. method according to claim 1, is characterized in that, the flash intensity controlling described photoflash lamp according to the actual size of described pupil specifically comprises:
According to the actual size computing environment brightness of described pupil;
Environmentally brightness calculation light compensation rate;
The flash intensity of photoflash lamp is calculated according to described smooth compensation rate;
Control described photoflash lamp to glisten with described flash intensity.
9. to the device that the photoflash lamp in image capture device controls, it is characterized in that, comprising:
Dimension acquisition module, for obtaining the actual size of user's pupil under current shooting environment;
Intensity control module, for controlling the flash intensity of described photoflash lamp according to the actual size of described pupil.
10. device according to claim 9, is characterized in that, described dimension acquisition module specifically comprises:
Gathering control unit, comprising the image of described user's pupil for controlling described image capture device collection;
Dimension calculating unit, for calculating the actual size of user's pupil according to the described image collected.
11. devices according to claim 10, is characterized in that, described collection control unit gathers for controlling described image capture device the original image comprising described user's pupil under standard acquisition parameters; Described dimension calculating unit is used for extracting current pupil image from described original image, and select the standard pupil image the most similar to described current pupil image from standard picture set after, the actual size of predetermined pupil size corresponding for described standard pupil image as user's pupil is exported;
Each standard pupil image in described standard picture set is corresponding with a pupil size, and each standard pupil image is the image with the pupil of described PD photographed under described standard acquisition parameters.
12. devices according to claim 10 or 11, it is characterized in that, the actual size of described user's pupil is actual diameter or the real area of pupil.
13. devices according to claim 11, it is characterized in that, described collection control unit carries out IMAQ for the first image acquisition units controlled in described image capture device, and judge whether can identify face in the current image collected, when in the current image collected, None-identified goes out face, perform handover operation, gather described first image by the second image acquisition units in described image capture device, otherwise current for the described first image acquisition units image collected is exported as described first image.
14. devices according to claim 13, is characterized in that, described first image acquisition units is the front-facing camera of mobile communication terminal, and described second image acquisition units is the post-positioned pick-up head of mobile communication terminal.
15. devices according to claim 13, is characterized in that, also comprise:
Module is set, for controlling before the first image acquisition units in described image capture device or the second image acquisition units carry out IMAQ at described collection control unit, the focal length arranging described first image acquisition units or the second image acquisition units is more than or equal to predetermined threshold.
16. devices according to claim 9, is characterized in that, described intensity control module specifically comprises:
Ambient brightness computing unit, according to the actual size computing environment brightness of described pupil;
Compensation rate computing unit, environmentally brightness calculation light compensation rate;
Flash intensity computing unit, calculates the flash intensity of photoflash lamp according to described smooth compensation rate;
Control unit, controls described photoflash lamp and glistens with described flash intensity.
17. 1 kinds of electronic equipments, comprise the image capture device that has photoflash lamp, it is characterized in that, also comprise the device controlled the photoflash lamp in described image capture device in claim 9-16 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717800.5A CN104333709B (en) | 2014-12-01 | 2014-12-01 | Method, device and the electronic equipment being controlled to flash lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717800.5A CN104333709B (en) | 2014-12-01 | 2014-12-01 | Method, device and the electronic equipment being controlled to flash lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104333709A true CN104333709A (en) | 2015-02-04 |
| CN104333709B CN104333709B (en) | 2017-09-29 |
Family
ID=52408351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410717800.5A Active CN104333709B (en) | 2014-12-01 | 2014-12-01 | Method, device and the electronic equipment being controlled to flash lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104333709B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811609A (en) * | 2015-03-03 | 2015-07-29 | 小米科技有限责任公司 | Photographing parameter adjustment method and device |
| CN106333643A (en) * | 2015-07-10 | 2017-01-18 | 中兴通讯股份有限公司 | Monitor method, monitor device and monitor terminal for user health |
| CN106454106A (en) * | 2016-10-31 | 2017-02-22 | 维沃移动通信有限公司 | A shooting method and a mobile terminal |
| CN106778414A (en) * | 2016-12-12 | 2017-05-31 | 北京慧眼智行科技有限公司 | A kind of image acquiring method and device |
| CN110051319A (en) * | 2019-04-23 | 2019-07-26 | 七鑫易维(深圳)科技有限公司 | Adjusting method, device, equipment and the storage medium of eyeball tracking sensor |
| CN111950462A (en) * | 2020-08-13 | 2020-11-17 | 深圳市商汤科技有限公司 | Brightness adjusting method and device, electronic equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170730A (en) * | 2011-04-12 | 2011-08-31 | 惠州Tcl移动通信有限公司 | Mobile terminal and flash lamp control method thereof |
| CN102725765A (en) * | 2010-01-22 | 2012-10-10 | 虹膜技术公司 | Device and method for iris recognition using a plurality of iris images having different iris sizes |
| CN103051795A (en) * | 2012-12-18 | 2013-04-17 | 广东欧珀移动通信有限公司 | Method for switching front camera and rear camera of mobile terminal and mobile terminal |
-
2014
- 2014-12-01 CN CN201410717800.5A patent/CN104333709B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102725765A (en) * | 2010-01-22 | 2012-10-10 | 虹膜技术公司 | Device and method for iris recognition using a plurality of iris images having different iris sizes |
| CN102170730A (en) * | 2011-04-12 | 2011-08-31 | 惠州Tcl移动通信有限公司 | Mobile terminal and flash lamp control method thereof |
| CN103051795A (en) * | 2012-12-18 | 2013-04-17 | 广东欧珀移动通信有限公司 | Method for switching front camera and rear camera of mobile terminal and mobile terminal |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811609A (en) * | 2015-03-03 | 2015-07-29 | 小米科技有限责任公司 | Photographing parameter adjustment method and device |
| EP3064993A1 (en) * | 2015-03-03 | 2016-09-07 | Xiaomi Inc. | Method and apparatus for adjusting photography parameters |
| US20160261792A1 (en) * | 2015-03-03 | 2016-09-08 | Xiaomi Inc. | Method and apparatus for adjusting photography parameters |
| WO2016138752A1 (en) * | 2015-03-03 | 2016-09-09 | 小米科技有限责任公司 | Shooting parameter adjustment method and device |
| US9843716B2 (en) * | 2015-03-03 | 2017-12-12 | Xiaomi Inc. | Method and apparatus for adjusting photography parameters |
| CN106333643A (en) * | 2015-07-10 | 2017-01-18 | 中兴通讯股份有限公司 | Monitor method, monitor device and monitor terminal for user health |
| CN106454106A (en) * | 2016-10-31 | 2017-02-22 | 维沃移动通信有限公司 | A shooting method and a mobile terminal |
| CN106778414A (en) * | 2016-12-12 | 2017-05-31 | 北京慧眼智行科技有限公司 | A kind of image acquiring method and device |
| CN110051319A (en) * | 2019-04-23 | 2019-07-26 | 七鑫易维(深圳)科技有限公司 | Adjusting method, device, equipment and the storage medium of eyeball tracking sensor |
| CN111950462A (en) * | 2020-08-13 | 2020-11-17 | 深圳市商汤科技有限公司 | Brightness adjusting method and device, electronic equipment and storage medium |
| CN111950462B (en) * | 2020-08-13 | 2022-03-25 | 深圳市商汤科技有限公司 | Brightness adjusting method and device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104333709B (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104333709A (en) | Method, device and electronic equipment for controlling flash lamp | |
| KR102085766B1 (en) | Method and Apparatus for controlling Auto Focus of an photographing device | |
| CN103591894B (en) | The method and apparatus of object length is measured by camera | |
| US20160366332A1 (en) | Processing method and system for automatically photographing based on eyeball tracking technology | |
| CN107124555B (en) | Method and device for controlling focusing, computer equipment and computer readable storage medium | |
| WO2019149099A1 (en) | Electronic device, human face recognition method, and relevant product | |
| CN107277388A (en) | Mobile terminal and its light compensation method | |
| CN104580924A (en) | Flashlight power adjusting method and terminal | |
| CN107743590A (en) | For performing the method and apparatus of exposure estimation using time-of-flight sensor | |
| CN105163034B (en) | A kind of photographic method and mobile terminal | |
| CN106415442A (en) | Portable electronic equipment and method of controlling a portable electronic equipment | |
| CN103905725B (en) | Image processing equipment and image processing method | |
| WO2016000330A1 (en) | Focal length adjustment method, device and terminal, and computer storage medium | |
| CN104468916A (en) | Test method based on cell phone response time | |
| CN102036005A (en) | Imaging device for processing captured image | |
| KR20150085710A (en) | Dispaly apparatus and controlling method thereof | |
| CN105872363A (en) | Adjustingmethod and adjusting device of human face focusing definition | |
| CN103905709A (en) | Electronic device control method and electronic device | |
| CN104935698A (en) | Photographing method of smart terminal, photographing device and smart phone | |
| CN103017896B (en) | Illumination photometry method and illumination photometry device | |
| CN101170647A (en) | Method of detecting specific object region and digital camera | |
| CN104394329B (en) | A kind of photographic method, device and mobile terminal | |
| Ismail et al. | Development of a webcam based lux meter | |
| CN111866374A (en) | Image shooting method and device, pan-tilt camera and storage medium | |
| CN111182199B (en) | Electronic device and photographing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |