CN106231279A - A kind of dual camera white balance synchronous method, device and terminal - Google Patents
A kind of dual camera white balance synchronous method, device and terminal Download PDFInfo
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- CN106231279A CN106231279A CN201610594196.0A CN201610594196A CN106231279A CN 106231279 A CN106231279 A CN 106231279A CN 201610594196 A CN201610594196 A CN 201610594196A CN 106231279 A CN106231279 A CN 106231279A
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- white balance
- dual camera
- image
- gains
- synchronous method
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Television Image Signal Generators (AREA)
- Studio Devices (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
The invention provides a kind of dual camera white balance synchronous method, device and terminal to include: dual camera respectively obtains a frame bayer image；Calculate the white balance gains of dual camera each Color Channel respectively；Calculated white balance gains is applied to next frame image and realizes white balance synchronization.View data in the present invention is based on bayer image data, and the bayer image of 10bit is compared to the 8bit image processed through image signal processing chip (ISP), and data message is more rich, so the image effect of bayer image synthesis is more preferable.Promote dual camera view data synthetic effect, reach more preferable imaging effect, promote Consumer's Experience.
Description
Technical field
The present embodiments relate to photographic head white balance synchronize, particularly relate to dual camera white balance synchronous method, device
And terminal.
Background technology
In the modern life, camera is one of main tool of record people's activity and memory.But conventional camera is past
The situation of distortion or variable color is had toward shooting photo out.White balance is exactly one of them key factor.Patent No.
The patent of CN201510970897 proposes the AWB synchronous method of a kind of polyphaser unit, for through picture signal
The white balance difference processing the multiple photographic head existence after chip (ISP) processes synchronizes.Described method is according to each road phase
The white balance result that machine unit obtains is as the first confidence level, then according to calibration data, obtains public white balance result.
In field of mobile terminals, carry out dual camera initial data (RAW) area image at digital signal processor (DSP) end
The synthesis of data is the problem of a great challenge.The view data in initial data (RAW) territory does not process through picture signal
Chip (ISP) picture signal processes pile line operation and processes, and directly carries out synthesis and there will be composograph data white balance
Inconsistent or that synthesis is failed problem.It is white that method proposed by the invention can improve initial data (RAW) area image data
Balance inconsistent problem, promote dual camera view data synthetic effect, reach more preferable imaging effect, promote user's body
Test.
Summary of the invention
It is an object of the invention to provide a kind of based on dual camera imageing sensor initial data area image data white
Balanced synchronization method, device and terminal.
The present invention provides a kind of dual camera white balance synchronous method, including:
Dual camera respectively obtains a frame bayer image；
Calculate the white balance gains of dual camera each Color Channel respectively；
Calculated white balance gains is applied to next frame image and realizes white balance synchronization.
Preferably, the white balance gains of described dual camera each passage is different value.
Preferably, described white balance gains calculates and calculates in application processor.
Preferably, the computational methods of described white balance gains include grey world, perfect reflection or dynamic threshold
White balance method.
Preferably, it is applied to next frame figure after the white balance gains after described digital signal processor receives described adjustment
Picture.
The present invention also provides for a kind of dual camera white balance synchronizer, including:
Image acquisition units, respectively obtains a frame original image for dual camera；
Computing unit, for calculating the white balance gains of dual camera each Color Channel respectively；
Correction unit, for will be calculated white balance gains be applied to next frame image realize white balance synchronization.
Preferably, described computing unit is application processor.
Preferably, described correction unit is digital signal processor.
Preferably, described dual camera includes a focal length photographic head and a short burnt photographic head
The present invention further provides a kind of terminal, including an any of the above-described described white balance synchronizer.
The invention has the beneficial effects as follows, the view data in the present invention derives from imageing sensor initial data territory, 10bit
Image compared to the 8bit image processed through image signal processing chip (ISP), data message is more rich, so original
The image effect of data field synthesis is more preferable.Promote dual camera view data synthetic effect, reach more preferable imaging effect, promote
Consumer's Experience.
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 dual camera white balance synchronous method schematic diagram of the present invention；
Fig. 2 is dual camera white balance synchronizer schematic diagram of the present invention；
Fig. 3 is the structural representation of synchronizer shown in one embodiment of the present of invention.
Reference:
Image acquisition units 201, computing unit 202, correct unit 203.
S100～S102 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.
The dual camera white balance synchronous method schematic diagram of the present invention as shown in Figure 1.Respectively obtain including S100 dual camera
One frame original image；S101 calculates the white balance gains of dual camera each Color Channel respectively；S102 will adjust after white flat
Weighing apparatus gain is applied to next frame image and realizes white balance synchronization.Described S100 is that dual camera respectively obtains a frame original image and carries out
Background synthesizes.
Further, the two field picture that S101 obtains for dual camera in S100 carries out white balance gains calculating, here
The method calculating white balance gains can be grey world, perfect reflection or self-adapted white balance method.Specifically calculate public affairs
Formula is the present invention repeat no more.But, skilled person will appreciate that, as long as commonly used approach can calculate white balance gains
All can realize this step.In another preferred embodiment of the invention, described color temperature value can also be directly at picture signal
Reason chip (ISP) reads and obtains, skilled person will appreciate that and no matter use which kind of method all in protection scope of the present invention
In.
In S102, after described image signal processing chip (ISP) calculates white balance gains, described white balance gains is returned
Pass to digital signal processor, described digital signal processor described calculated white balance gains is applied to next frame
In original image.
Fig. 2 is dual camera white balance synchronizer schematic diagram of the present invention；Image acquisition units 201, for dual camera
Each acquisition one frame original image；Computing unit 202, for calculating the white balance gains of dual camera each Color Channel respectively；
Correction unit 203, the white balance gains after adjusting is applied to next frame image and realizes white balance synchronization.Described computing unit is excellent
Electing the image signal processing chip (ISP) in application processor (AP) as, described correction module is preferably digital signal processor
(DSP)。
Fig. 3 is the structural representation of synchronizer shown in one embodiment of the present of invention.Understanding in conjunction with Fig. 2, Fig. 3 is this
The structural reference figure of a bright specific embodiment.User can trigger color synchronization function, herein after performing specific operation
Specific operation includes but not limited to trip or touch focusing.Skilled person will appreciate that, as long as being intended to the action of shooting
Can serve as triggering the action of color synchronization device.In the present embodiment, specifically, system application processor (AP) side is passed through
SPI communication bus interacts with digital signal processor (DSP), and described digital signal processor (DSP) is total by I2C communication
Line and dual camera communication, between photographic head and digital signal processor (DSP), digital signal processor (DSP) with answer use
MIPI communications interface transmission photographic head data are all passed through between reason device (AP).Wherein, SPI communication bus is at described digital signal
Reason device (DSP) and the bi-directional control signal of described application processor (AP), described I2C communication bus is at described digital signal
Reason device (DSP) is unidirectionally controlled signal to described photographic head.
After obtaining dual camera image, it is first determined whether need to do image synthesis.Once white balance synchronizes to trigger, and carries
Taking the data cached two field picture of preview, calculate dual camera passage white balance gains, white balance gains value also can be by existing
AWB algorithm is calculated.After getting white balance gains value, SPI communication is passed through in application processor (AP) side
Bus transfer white balance gains value is held to digital signal processor (DSP), and digital signal processor (DSP) end is white by get
Balancing gain value is applied to the cache image of two photographic head passages can complete the synchronization of dual camera white balance.
The initial data that imageing sensor in the present invention spreads out of is 10bit, processes core than only passing through picture signal
Sheet (ISP) 8bit image information out is more rich, so, the initial data synthesis effect that the present invention is spread out of by imageing sensor
Fruit is more preferably.The present invention realizes dual camera initial data white balance Concordance, improves the inconsistent vision brought of white balance
Difference, promotes the synthetic effect of dual camera, promotes Consumer's Experience.
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 (8)
1. a dual camera white balance synchronous method, it is characterised in that including:
Dual camera respectively obtains a frame bayer image；
Calculate the white balance gains of dual camera each Color Channel respectively；
Calculated white balance gains is applied to next frame image and realizes white balance synchronization.
White balance synchronous method the most according to claim 1, it is characterised in that: described white balance gains calculates and is answering use
Reason device calculates.
White balance synchronous method the most according to claim 1, it is characterised in that: the computational methods bag of described white balance gains
Include grey world, perfect reflection or dynamic threshold white balance method.
White balance synchronous method the most according to claim 1, it is characterised in that: described digital signal processor receives described
Next frame image it is applied to after white balance gains after adjustment.
5. a dual camera white balance synchronizer, it is characterised in that including:
Image acquisition units, respectively obtains a frame original image for dual camera；
Computing unit, for calculating the white balance gains of dual camera each Color Channel respectively；
Correction unit, realizes white balance synchronization for calculated white balance gains is applied to next frame image.
White balance synchronizer the most according to claim 5, it is characterised in that described computing unit is application processor.
White balance synchronizer the most according to claim 5, it is characterised in that described correction unit is Digital Signal Processing
Device.
8. a terminal, it is characterised in that include the white balance synchronization described in arbitrary claim in claim 5～7
Device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610594196.0A CN106231279A (en) | 2016-07-26 | 2016-07-26 | A kind of dual camera white balance synchronous method, device and terminal |
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| CN201610594196.0A CN106231279A (en) | 2016-07-26 | 2016-07-26 | A kind of dual camera white balance synchronous method, device and terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107147837A (en) * | 2017-06-30 | 2017-09-08 | 维沃移动通信有限公司 | The method to set up and mobile terminal of a kind of acquisition parameters |
| CN107360342A (en) * | 2017-06-30 | 2017-11-17 | 维沃移动通信有限公司 | The processing method and mobile terminal of a kind of view data |
| CN109819139A (en) * | 2017-11-22 | 2019-05-28 | 福州瑞芯微电子股份有限公司 | A kind of intelligent electronic device and image processing unit, device, method |
| CN111953897A (en) * | 2017-05-05 | 2020-11-17 | 瑞芯微电子股份有限公司 | Method and device for rapidly shooting image |
| US11206382B2 (en) | 2017-07-10 | 2021-12-21 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | White balance synchronization method and apparatus, and terminal device |
| CN114554170A (en) * | 2022-03-08 | 2022-05-27 | 三星半导体(中国)研究开发有限公司 | Method of multi-sensor white balance synchronization and electronic device using the same |
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| CN105227945A (en) * | 2015-10-21 | 2016-01-06 | 维沃移动通信有限公司 | A kind of control method of Automatic white balance and mobile terminal |
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| CN101939997A (en) * | 2007-12-10 | 2011-01-05 | 豪威科技有限公司 | Image sensor apparatus and method for color correction with an illuminant-dependent color correction matrix |
| CN105227945A (en) * | 2015-10-21 | 2016-01-06 | 维沃移动通信有限公司 | A kind of control method of Automatic white balance and mobile terminal |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111953897A (en) * | 2017-05-05 | 2020-11-17 | 瑞芯微电子股份有限公司 | Method and device for rapidly shooting image |
| CN111953897B (en) * | 2017-05-05 | 2021-09-10 | 瑞芯微电子股份有限公司 | Method and device for rapidly shooting image |
| CN107147837A (en) * | 2017-06-30 | 2017-09-08 | 维沃移动通信有限公司 | The method to set up and mobile terminal of a kind of acquisition parameters |
| CN107360342A (en) * | 2017-06-30 | 2017-11-17 | 维沃移动通信有限公司 | The processing method and mobile terminal of a kind of view data |
| US11206382B2 (en) | 2017-07-10 | 2021-12-21 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | White balance synchronization method and apparatus, and terminal device |
| CN109819139A (en) * | 2017-11-22 | 2019-05-28 | 福州瑞芯微电子股份有限公司 | A kind of intelligent electronic device and image processing unit, device, method |
| CN109819139B (en) * | 2017-11-22 | 2022-01-07 | 瑞芯微电子股份有限公司 | Intelligent electronic equipment and image processing unit, device and method |
| CN114554170A (en) * | 2022-03-08 | 2022-05-27 | 三星半导体(中国)研究开发有限公司 | Method of multi-sensor white balance synchronization and electronic device using the same |
| CN114554170B (en) * | 2022-03-08 | 2024-06-11 | 三星半导体(中国)研究开发有限公司 | Method for multi-sensor white balance synchronization and electronic device using same |
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Effective date of registration: 20180725 Address after: 330008 office building, Jiao Qiao Town, Nanchang economic and Technological Development Zone, Qingshan Lake District, Nanchang, Jiangxi, China Applicant after: Nanchang shark Technology Co. Ltd. Address before: 518063 south wing of 2 floor, building 1, Weixin Software Park, Nanshan District, Shenzhen, Guangdong. Applicant before: SHENZHEN ZEUSIS TECHNOLOGY CO., LTD. |
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