CN106131451A - The control method of capture apparatus, system and mobile terminal thereof - Google Patents
The control method of capture apparatus, system and mobile terminal thereof Download PDFInfo
- Publication number
- CN106131451A CN106131451A CN201610633133.1A CN201610633133A CN106131451A CN 106131451 A CN106131451 A CN 106131451A CN 201610633133 A CN201610633133 A CN 201610633133A CN 106131451 A CN106131451 A CN 106131451A
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- Prior art keywords
- preflashing
- threshold value
- capture apparatus
- ambient brightness
- flash lamp
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
-
- 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
- H04N23/67—Focus control based on electronic image sensor signals
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Exposure Control For Cameras (AREA)
Abstract
The embodiment of the invention discloses the control method of a kind of capture apparatus, system and mobile terminal thereof, belong to control technical field.The method includes: obtain the ambient brightness L of camera collection；When detecting that described ambient brightness L meets default preflashing condition, the flash lamp controlling capture apparatus carries out preflashing.The ambient brightness L that the embodiment of the present invention is obtained by judgement contrasts with the condition preset, control capture apparatus flash lamp whether preflashing, it is to avoid situation about still focusing in the case of need not camera focusing, saves photo opporunity, improves Consumer's Experience.
Description
Technical field
The present embodiments relate to control technical field, particularly relate to the control method of a kind of capture apparatus, system and shifting
Dynamic terminal.
Background technology
In prior art, flash lamp is under pattern of automatically flashing, and in system, default setting has threshold value, when photographic head gets
Ambient brightness less than this threshold value when, system to flash lamp send preflashing instruction, and to photographic head send focusing instruction, dodge
Light modulation performs preflashing according to preflashing instruction, and photographic head is focused according to focusing instruction.
During realizing the present invention, inventor finds: according to prior art, when ambient brightness is less than threshold value, in advance
Dodge and carry out with focusing the most simultaneously, thus it is long to have led to photo opporunity, it is impossible to meet the requirement of user's snapshots.Therefore, as
What shortens photo opporunity, improves Consumer's Experience and becomes a problem demanding prompt solution.
Summary of the invention
The purpose of the embodiment of the present invention is to provide the control method of a kind of capture apparatus, system and mobile terminal thereof, with joint
Save the time taken pictures, improve Consumer's Experience.
An aspect according to embodiments of the present invention, embodiments provides the control method of a kind of capture apparatus,
Including:
Obtain the ambient brightness L of camera collection；
When detecting that described ambient brightness L meets default preflashing condition, the flash lamp controlling capture apparatus carries out pre-
Dodge.
Further, described when detecting that described ambient brightness L meets default preflashing condition, control the sudden strain of a muscle of capture apparatus
Light modulation carries out preflashing and includes:
Detecting that described ambient brightness L is less than preflashing threshold value BV1 preset, and not less than the threshold value of automatically flashing preset
During BV2, the flash lamp controlling capture apparatus carries out preflashing；
Wherein, described threshold value BV2 of automatically flashing is less than described preflashing threshold value BV1.
Further, also include: detecting that described ambient brightness L less than threshold value BV2 of automatically flashing preset, then controls institute
The flash lamp stating capture apparatus carries out preflashing, and the photographic head controlling described capture apparatus is focused.
Further, also included before described acquisition ambient brightness L: preset preflashing threshold value BV1 and threshold value of automatically flashing
BV2。
Further, the span of described preflashing threshold value BV1 is :-15 to-5.
Further, the span of described threshold value BV2 of automatically flashing is :-35 to-25.
The ambient brightness L that the embodiment of the present invention is obtained by judgement contrasts with the condition preset, and controls shooting and sets
Standby flash lamp whether preflashing, it is to avoid situation about still focusing in the case of need not camera focusing, saves photo opporunity,
Improve Consumer's Experience.
Another aspect according to embodiments of the present invention, embodiments provides and a kind of to capture apparatus control is
System, including: ambient brightness acquiring unit, for obtaining current ambient brightness L；Judging unit, for detecting described ring
When border brightness L meets default preflashing condition, the flash lamp controlling capture apparatus carries out preflashing.
Further, described judging unit, it is additionally operable to detecting that described ambient brightness L is less than preflashing threshold value BV1 preset,
And not less than preset automatically flash threshold value BV2 time, control capture apparatus flash lamp carry out preflashing；Wherein, described automatic beat
Dodge threshold value BV2 less than described preflashing threshold value BV1.
Further, described judging unit, it is additionally operable to detecting that described ambient brightness L is less than the threshold value of automatically flashing preset
BV2, then the flash lamp controlling described capture apparatus carries out preflashing, and the photographic head controlling described capture apparatus is focused.Enter
One step, the span of described preflashing threshold value BV1 is :-15 to-5.
Further, the span of described threshold value BV2 of automatically flashing is :-35 to-25.
The ambient brightness L that the embodiment of the present invention is obtained by judgement contrasts with the condition preset, and controls shooting and sets
Standby flash lamp whether preflashing, it is to avoid situation about still focusing in the case of need not camera focusing, saves photo opporunity,
Improve Consumer's Experience.
Another aspect according to embodiments of the present invention, embodiments provides a kind of mobile terminal, including shooting
Equipment, also includes the system controlling capture apparatus.
Having the advantages that of the embodiment of the present invention: avoid the feelings that need not camera focusing in prior art
Situation about still focusing under condition, saves photo opporunity.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method of a kind of capture apparatus that the embodiment of the present invention 1 provides；
Fig. 2 is the particular flow sheet of the embodiment of the present invention 1 step S102；
Fig. 3 is the particular flow sheet of the embodiment of the present invention 2 step S202；
Fig. 4 is the structural representation of the control system of a kind of capture apparatus that the embodiment of the present invention 3 provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention of greater clarity, below in conjunction with detailed description of the invention and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these describe the most exemplary, and it is not intended to limit this
Bright scope.Additionally, in the following description, eliminate the description to known features and technology, to avoid unnecessarily obscuring this
The concept of invention.
Embodiment 1
Fig. 1 is the flow chart of the control method of a kind of capture apparatus of first embodiment of the invention.
As it is shown in figure 1, the control method of a kind of capture apparatus includes:
Step S101, obtains the ambient brightness L of camera collection.
Including photo-sensitive cell in described photographic head, photo-sensitive cell can be general CCD (Charge-coupled
Device) or CMOS (Complementary Metal Oxide Semiconductor) etc., photo-sensitive cell receives to be clapped
After taking the photograph the light of article local environment, light can be changed into electric charge, be converted into digital signal by analog-digital converter chip, and
In recording in the memory unit, often one image of shooting, the environment value L of this image place environment all can be recorded and exist by photo-sensitive cell
In memory element；When receiving the photographing instruction that user sends, from memory element, obtain ambient brightness L.
Step S102, when detecting that described ambient brightness L meets default preflashing condition, controls the flash of light of capture apparatus
Lamp carries out preflashing.
Concrete, detecting that described ambient brightness L is less than preflashing threshold value BV1 preset and automatic not less than preset
During threshold value BV2 of flashing, the flash lamp controlling capture apparatus carries out preflashing；
Wherein, described threshold value BV2 of automatically flashing is less than described preflashing threshold value BV1.
Fig. 2 is a kind of embodiment flow chart of step S102, as shown in Figure 2: comprise the following steps:
S1021, it is judged that whether described ambient brightness L is less than preflashing threshold value BV1 preset.
In this step, after obtaining the ambient brightness L of camera collection, it is judged that described ambient brightness L and the preflashing preset
The magnitude relationship of threshold value BV1, if ambient brightness L is less than described default preflashing threshold value BV1, then enters step S103, if
Ambient brightness L is more than or equal to described default preflashing threshold value BV1, then send shooting instruction to photographic head.Photographic head receives
Starting camera function after shooting instruction, now, flash lamp will not flash, and photographic head also will not be focused.
Step S1022, if ambient brightness L is less than described default preflashing threshold value BV1, it is judged that whether described ambient brightness L
Less than threshold value BV2 of automatically flashing preset.
In this step, it is judged that described ambient brightness L and the magnitude relationship of threshold value BV2 of automatically flashing preset, if ring
Brightness L in border is less than threshold value BV2 of automatically flashing preset, then system can send preflashing instruction to flash lamp, and sends to photographic head
Focusing instruction, after described flash lamp receives the instruction of described preflashing, starts preflashing function according to the instruction of described preflashing, and flash lamp enters
Enter the preflashing stage, after photographic head receives described focusing instruction, start focus function according to described focusing instruction.
If ambient brightness L is more than or equal to described default threshold value BV2 of automatically flashing, then system can send to flash lamp
Preflashing instructs, and after described flash lamp receives the instruction of described preflashing, starts preflashing function according to the instruction of described preflashing, now, is
System will not send focusing instruction as photographic head, therefore.Under current environment brightness, photographic head will not be focused.
Present embodiment is by pre-setting preflashing threshold value BV1 (preflashing focusing brightness value) and threshold value BV2 of automatically flashing (oneself
The dynamic brightness value that flashes).Then the ambient brightness L obtaining camera collection is entered in preflashing threshold value BV1 and threshold value BV2 of automatically flashing
Row compare, if compare automatically to flash threshold value BV2 less than ambient brightness L less than preflashing threshold value BV1 time, flash lamp is according to reception
The preflashing instruction preflashing arrived, but photographic head is not focused, it is achieved that have only to flash lamp when taking pictures under certain brightness conditions pre-
Dodge the effect that need not camera focusing, save photo opporunity, improve Consumer's Experience.Fig. 3 is another of step S102
Embodiment flow chart, as shown in Figure 3: comprise the following steps:
S2021 judges that whether described ambient brightness L is less than described threshold value BV2 of automatically flashing.
In this step, after obtaining the ambient brightness L of camera collection, it is judged that described ambient brightness L and the preflashing preset
The magnitude relationship of threshold value BV2, if described ambient brightness L is less than described threshold value BV2 of automatically flashing, then sends preflashing to flash lamp and refers to
Order also sends focusing instruction to photographic head, after described flash lamp receives the instruction of described preflashing, starts according to the instruction of described preflashing
Preflashing function, flash lamp performs preflashing, after photographic head receives focusing instruction, performs focusing according to described focusing instruction.
Step S2022, if ambient brightness L is not less than described threshold value BV2 of automatically flashing, then judges described ambient brightness L
Whether less than described preflashing threshold value BV1.
Described ambient brightness L compares with described preflashing threshold value BV1, if described ambient brightness L is less than described preflashing threshold
Value BV1, then send preflashing instruction to flash lamp, after described flash lamp receives the instruction of described preflashing, instructs according to described preflashing
Performing preflashing, now, system will not send focusing instruction as photographic head, therefore.Under current environment brightness, photographic head will not enter
Row focusing, if described ambient brightness L is more than described preflashing threshold value BV1, then will not send preflashing instruction to flash lamp, the most not to taking the photograph
As hair send focusing instruction.
In yet, after first step of above-mentioned two embodiments obtains the ambient brightness L of camera collection,
When detecting that described ambient brightness L meets default preflashing condition, the flash lamp controlling capture apparatus carries out in preflashing, environment
Brightness L can compare with described preflashing threshold value BV1 and described threshold value BV2 mono-piece of automatically flashing, if ambient brightness L is less than institute
State preflashing threshold value BV1, and more than described automatically flash threshold value BV2 time, then system can send preflashing instruction, described sudden strain of a muscle to flash lamp
After light modulation receives the instruction of described preflashing, performing preflashing according to the instruction of described preflashing, now, it is right that system will not send to photographic head
Burnt instruction, therefore.Under current environment brightness, focusing instruction will not be sent to photographic head.
If ambient brightness L is less than described threshold value BV2 of automatically flashing less than described preflashing threshold value BV1, then system can be to flash of light
Lamp sends preflashing instruction and sends focusing instruction to photographic head, after described flash lamp receives the instruction of described preflashing, according to described
Preflashing instruction starts preflashing function, pre flashing of flash lamp stage, after photographic head receives described focusing instruction, refers to according to described focusing
Order starts focus function.
If ambient brightness L is more than described threshold value BV2 of automatically flashing more than described preflashing threshold value BV1, at this luminance state
Under, preflashing instruction will not sent to flash lamp to photographic head invention focusing instruction.
During it should be noted that the embodiment of the present invention is implemented, preflashing threshold value BV1 (focusing of preflashing stage) can be pre-set
Automatically threshold value BV2 of flashing (brightness value that flash lamp flashes automatically), wherein said preflashing threshold value BV1 threshold the most of the prior art
Value.
In the prior art, flash lamp, under the pattern automatically flashed, all can pre-set a threshold value, when captured thing
When the brightness value of the environment residing for body is less than described threshold value, flash lamp will first preflashing, preflashing stage photographic head i.e. can be focused, so
Laggard become owner of sudden strain of a muscle and take pictures.
Wherein, the span of described preflashing threshold value BV1 is :-15 to-5.
Concrete, the value of described preflashing threshold value BV1 (preflashing focusing brightness value) is according to formula: BV=AV+TV-SV, its
In: AV is f-number, and TV is fast gate value, and SV is photosensitive value.
Wherein, the span of described preflashing threshold value BV1 is :-35 to-25.
Concrete, the value of described threshold value BV2 of automatically flashing (flash brightness value automatically) is again by formula BV=AV+TV-
SV is calculated, but now needs current ambient brightness darker, and the value of the most required SV is less.
Embodiment 2
Fig. 4 is the schematic diagram of the control system of a kind of capture apparatus of the embodiment of the present invention.
As shown in Figure 4, the control system of a kind of capture apparatus includes:
Ambient brightness acquiring unit 10, for obtaining current ambient brightness L.
Including photo-sensitive cell in described photographic head, photo-sensitive cell can be general CCD (Charge-coupled
Device) or CMOS (Complementary Metal Oxide Semiconductor) etc., photo-sensitive cell receives to be clapped
After taking the photograph the light of article local environment, light can be changed into electric charge, be converted into digital signal by analog-digital converter chip, and
In recording in the memory unit, often one image of shooting, the environment value L of this image place environment all can be recorded and exist by photo-sensitive cell
In memory element；When receiving the photographing instruction that user sends, from memory element, obtain ambient brightness L.
Judging unit 20, for when detecting that described ambient brightness L meets default preflashing condition, controls capture apparatus
Flash lamp carry out preflashing.
Described judging unit 20, be additionally operable to detect described ambient brightness L less than preflashing threshold value BV1 preset, and not
Less than preset automatically flash threshold value BV2 time, control capture apparatus flash lamp carry out preflashing；Wherein, the described threshold that automatically flashes
Value BV2 is less than described preflashing threshold value BV1.
Described judging unit (20), is additionally operable to detecting that described ambient brightness L is less than the threshold value of automatically flashing preset
BV2, then the flash lamp controlling described capture apparatus carries out preflashing, and the photographic head controlling described capture apparatus is focused.
Concrete, described detect described ambient brightness L less than preflashing threshold value BV1 preset, and not less than presetting
During threshold value BV2 of automatically flashing, the flash lamp of control capture apparatus carries out preflashing and includes: judge whether described ambient brightness L is less than
Preflashing threshold value BV1 preset, if so, judges that whether described ambient brightness L is less than threshold value BV2 of automatically flashing preset, wherein, institute
State threshold value BV2 of automatically flashing less than described preflashing threshold value BV1；If it is not, then the instruction sending module in judging unit 20 is to flash of light
Lamp sends preflashing instruction.
It should be noted that, described preflashing threshold value BV1 and described threshold value BV2 of automatically flashing can be stored in memory element after arranging
In 30, described memory element 30 is used for storing ambient brightness L, preflashing threshold value BV1, automatically flashing between threshold value BV2 and three
Magnitude relationship.
After ambient brightness acquiring unit 10 obtains the ambient brightness L of camera collection, described ambient brightness L is stored in
In storage unit, then judge the magnitude relationship of described ambient brightness L and preflashing threshold value BV1 preset, if ambient brightness L is less than
Described default preflashing threshold value BV1, then ambient brightness L described in multilevel iudge and the magnitude relationship of described threshold value BV2 of automatically flashing,
If described ambient brightness L is not less than described threshold value BV2 of automatically flashing, then instruction sending module refers to flash lamp transmission preflashing
Order, after described flash lamp receives the instruction of described preflashing, instructs according to described preflashing and starts preflashing function, pre flashing of flash lamp, but
Now instruction sending module does not send focusing instruction to photographic head.
If ambient brightness L is more than described default preflashing threshold value BV1, then send shooting instruction to photographic head.Photographic head
Starting camera function after receiving shooting instruction, now, flash lamp will not flash, and photographic head also will not be focused.
It is less than preflashing threshold value BV1 preset if the judged result of described judging unit 20 is ambient brightness L, and less than presetting
Threshold value BV2 of automatically flashing, be additionally operable to flash lamp send preflashing instruction, and to photographic head send focusing instruction.
If ambient brightness L is less than threshold value BV2 of automatically flashing preset, then system can send preflashing instruction also to flash lamp
Send focusing instruction to photographic head, after described flash lamp receives the instruction of described preflashing, start preflashing according to the instruction of described preflashing
Function, in the pre flashing of flash lamp stage, after photographic head receives described focusing instruction, performs focusing according to described focusing instruction.
During it should be noted that the embodiment of the present invention is implemented, (the preflashing stage focuses to pre-set preflashing threshold value BV1
Brightness value) and threshold value BV2 of automatically flashing (brightness value that flash lamp flashes automatically), the wherein said the most existing skill of preflashing threshold value BV1
Threshold value in art.
Wherein, the span of described preflashing threshold value BV1 is :-15 to-5.
Concrete, described preflashing threshold value BV1 (preflashing focusing brightness value) is to obtain according to formula (1):
BV=AV+TV-SV formula (1),
Wherein: BV is threshold value, AV is f-number, and TV is fast gate value, and SV is photosensitive value.
Wherein, the span of described preflashing threshold value BV1 is :-35 to-25.
Concrete, the value of described threshold value BV2 of automatically flashing (flash brightness value automatically) obtains again by according to formula (1),
But now needing current ambient brightness darker, the value of the most required SV is less.
Embodiment 3
Another aspect according to embodiments of the present invention, embodiments provides a kind of mobile terminal, including shooting
Equipment, also includes the system controlling capture apparatus.Wherein said mobile terminal includes mobile phone, notebook, panel computer, camera
Deng.
In the prior art, flash lamp, under the pattern automatically flashed, all can pre-set a threshold value, when captured thing
When the brightness value of the environment residing for body is less than described threshold value, flash lamp will first preflashing, preflashing stage photographic head i.e. can be focused, so
Laggard become owner of sudden strain of a muscle and take pictures.And the embodiment of the present invention is by arranging (the preflashing threshold value BV1 (brightness of preflashing stage focusing of two threshold values
Value) and threshold value BV2 of automatically flashing (brightness value that flash lamp flashes automatically)), reach at ambient brightness L less than preflashing threshold value
BV1, but in the case of being more than threshold value BV2 of automatically flashing, send preflashing instruction to flash lamp, pre flashing of flash lamp, not to photographic head
Send focusing instruction, save the time taken pictures, improve Consumer's Experience.
It should be appreciated that the above-mentioned detailed description of the invention of the present invention is used only for exemplary illustration or explains the present invention's
Principle, and be not construed as limiting the invention.Therefore, that is done in the case of without departing from the spirit and scope of the present invention is any
Amendment, equivalent, improvement etc., should be included within the scope of the present invention.Additionally, claims purport of the present invention
Whole within containing the equivalents falling into scope and border or this scope and border change and repair
Change example.
Claims (11)
1. the control method of a capture apparatus, it is characterised in that including:
Obtain the ambient brightness L of camera collection；
When detecting that described ambient brightness L meets default preflashing condition, the flash lamp controlling capture apparatus carries out preflashing.
Method the most according to claim 1, wherein, described is detecting that described ambient brightness L meets default preflashing bar
During part, the flash lamp of control capture apparatus carries out preflashing and includes:
Detecting that described ambient brightness L is less than preflashing threshold value BV1 preset, and not less than threshold value BV2 of automatically flashing preset
Time, the flash lamp controlling capture apparatus carries out preflashing；
Wherein, described threshold value BV2 of automatically flashing is less than described preflashing threshold value BV1.
Method the most according to claim 2, wherein, also includes:
Detecting that described ambient brightness L less than threshold value BV2 of automatically flashing preset, then controls the flash lamp of described capture apparatus
Carry out preflashing, and the photographic head controlling described capture apparatus is focused.
The most according to the method in claim 2 or 3, wherein, the span of described preflashing threshold value BV1 is :-15 to-5.
The most according to the method in claim 2 or 3, wherein, the span of described threshold value BV2 of automatically flashing is :-35 to-
25。
6. the system that capture apparatus is controlled, it is characterised in that including:
Ambient brightness acquiring unit (10), for obtaining current ambient brightness L；
Judging unit (20), for when detecting that described ambient brightness L meets default preflashing condition, controls capture apparatus
Flash lamp carries out preflashing.
System the most according to claim 6, wherein,
Described judging unit (20), is additionally operable to detecting that described ambient brightness L is less than preflashing threshold value BV1 preset and the least
In default automatically flash threshold value BV2 time, the flash lamp controlling capture apparatus carries out preflashing；
Wherein, described threshold value BV2 of automatically flashing is less than described preflashing threshold value BV1.
System the most according to claim 7, wherein, described judging unit (20), it is additionally operable to detecting that described environment is bright
Degree L is less than threshold value BV2 of automatically flashing preset, then the flash lamp controlling described capture apparatus carries out preflashing, and controls described bat
The photographic head taking the photograph equipment is focused.
9., according to the arbitrary described system of claim 7 or 8, wherein, the span of described preflashing threshold value BV1 is :-15 to-
5。
10. according to the arbitrary described system of claim 6-8, wherein, the span of described threshold value BV2 of automatically flashing
For :-35 to-25.
11. 1 kinds of mobile terminals, including capture apparatus, it is characterised in that also include described in any one of claim 6 10 is right
The system that capture apparatus controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610633133.1A CN106131451A (en) | 2016-08-04 | 2016-08-04 | The control method of capture apparatus, system and mobile terminal thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633133.1A CN106131451A (en) | 2016-08-04 | 2016-08-04 | The control method of capture apparatus, system and mobile terminal thereof |
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| CN201610633133.1A Pending CN106131451A (en) | 2016-08-04 | 2016-08-04 | The control method of capture apparatus, system and mobile terminal thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106814742A (en) * | 2016-12-29 | 2017-06-09 | 湖南创动智能科技有限公司 | A kind of control method of unmanned plane, control device and unmanned plane |
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| CN102830573A (en) * | 2012-09-10 | 2012-12-19 | 华为终端有限公司 | Method and device for controlling flash |
| US20130156413A1 (en) * | 2010-12-17 | 2013-06-20 | Research In Motion Limited | Reduced pre-flash for led flash based camera devices |
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2016
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| CN101082755A (en) * | 2006-06-01 | 2007-12-05 | 普立尔科技股份有限公司 | Flashlamps exciting method |
| US20130156413A1 (en) * | 2010-12-17 | 2013-06-20 | Research In Motion Limited | Reduced pre-flash for led flash based camera devices |
| CN102830573A (en) * | 2012-09-10 | 2012-12-19 | 华为终端有限公司 | Method and device for controlling flash |
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