CN107979726A - The matching method and full shot of a kind of full shot - Google Patents
The matching method and full shot of a kind of full shot Download PDFInfo
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- CN107979726A CN107979726A CN201711217423.9A CN201711217423A CN107979726A CN 107979726 A CN107979726 A CN 107979726A CN 201711217423 A CN201711217423 A CN 201711217423A CN 107979726 A CN107979726 A CN 107979726A
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- average value
- white balance
- measured
- channel average
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
-
- 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
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
Abstract
This application discloses the matching method and full shot of a kind of full shot, including：Multiple camera modules to be measured shoot the first picture, obtain the first white balance parameter current of each camera module to be measured；According to each first white balance parameter current and the white balance standard parameter of standard camera head mould group, automatic white balance adjusting is carried out to each camera module to be measured；Each camera module to be measured shoots the second picture after automatic white balance adjusting, obtains the second white balance parameter current of each camera module to be measured；To be measured camera module of the difference of the second white balance parameter current in setting range is selected to match two-by-two.The application carries out automatic white balance adjusting to each camera module to be measured, changing each channel gain makes the white balance parameter of itself and white balance standard parameter closer, reduce module color consistency, the the second white balance parameter current selected is consistent or similar module is composed of full shot two-by-two, ensure that the brightness of two modules is consistent or deviation is smaller.
Description
Technical field
The present invention relates to camera technology field, more particularly to the matching method and full shot of a kind of full shot.
Background technology
Realize that 360 ° of full-view camera pan-shots have kinds of schemes at present, one of which is to image mould using two pieces of flakes
What group formed back-to-back.But due to being had differences between module, pairing assemble after occur two camera brightness,
The inconsistent situation of color, existing matching method need to find the relatively more similar module pairing of brightness, R/G, B/G, because
Three conditions are considered at the same time, and it is bigger to select difficulty, and differs and surely match all modules one by one.
Therefore, 360 ° of full shot pairings how simply and efficiently to be realized, are those skilled in the art's skills urgently to be resolved hurrily
Art problem.
The content of the invention
In view of this, it is an object of the invention to provide the matching method and full shot of full shot, mould can be reduced
Group color consistency, ensures the brightness of two modules unanimously or deviation is smaller, simple and efficient.Its concrete scheme is as follows：
A kind of matching method of full shot, including：
Multiple camera modules to be measured shoot the first picture, and obtain each camera module to be measured first is white flat
Weigh parameter current；
According to each first white balance parameter current and the white balance standard parameter of standard camera head mould group, to each described
Camera module to be measured carries out automatic white balance adjusting；
Each camera module to be measured shoots the second picture after automatic white balance adjusting, obtains each shooting to be measured
Second white balance parameter current of head mould group；
The to be measured camera module of the difference of the second white balance parameter current in setting range is selected two-by-two to match somebody with somebody
It is right.
Preferably, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, multiple shootings to be measured
Head mould group shoots the first picture, specifically includes：
Within the time for exposure of setting, multiple camera modules to be measured shoot the first picture；First picture
Center brightness meets setting brightness range.
Preferably, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, each described to be measured take the photograph is obtained
As the first white balance parameter current of head mould group, specifically include：
The red channel average value in the first picture central area, green channel average value and blue channel is calculated to put down
Average；
Put down according to the red channel average value in the first picture central area, green channel average value and blue channel
Average, calculates the ratio of the red channel average value and the green channel average value, and the blue channel average value
With the ratio of the green channel average value, to obtain the first white balance parameter current of each camera module to be measured.
Preferably, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, the standard camera head mould
The red channel in picture central area that the white balance standard parameter of group includes being shot according to the standard camera head mould group is put down
Average, green channel average value and blue channel average value, the red channel average value calculated and the green channel
The ratio of average value, and the ratio of the blue channel average value and the green channel average value.
Preferably, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, each described to be measured take the photograph is obtained
As the second white balance parameter current of head mould group, specifically include：
The red channel average value in the second picture central area, green channel average value and blue channel is calculated to put down
Average；
Put down according to the red channel average value in the second picture central area, green channel average value and blue channel
Average, calculates the ratio of the red channel average value and the green channel average value, and the blue channel average value
With the ratio of the green channel average value, to obtain the second white balance parameter current of each camera module to be measured.
Preferably, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, the shooting head mould to be measured
Group and the standard camera head mould group are the module arranged using color filter array.
The embodiment of the present invention additionally provides a kind of full shot, and the full shot is using provided in an embodiment of the present invention
Above-mentioned matching method carries out what pairing formed.
The matching method and full shot of a kind of full shot provided by the present invention, including：Multiple shooting head moulds to be measured
Group the first picture of shooting, obtains the first white balance parameter current of each camera module to be measured；It is current according to each first white balance
The white balance standard parameter of parameter and standard camera head mould group, automatic white balance adjusting is carried out to each camera module to be measured；Respectively
Camera module to be measured shoots the second picture after automatic white balance adjusting, obtains the second white balance of each camera module to be measured
Parameter current；To be measured camera module of the difference of the second white balance parameter current in setting range is selected to match two-by-two.This hair
It is bright that automatic white balance adjusting is carried out to each camera module to be measured, thus it is possible to vary each channel gain make the white balance parameter of itself with
White balance standard parameter is closer, reduces module color consistency, and the second white balance parameter current selected is consistent or close
Camera module to be measured be composed of full shot two-by-two, it is ensured that the brightness of two modules is consistent or deviation is smaller.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the matching method flow chart of full shot provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
The present invention provides a kind of matching method of full shot, as shown in Figure 1, comprising the following steps：
S101, multiple camera modules to be measured shoot the first picture, and obtain each camera module to be measured first is white
Balance parameter current；
S102, the white balance standard parameter according to each first white balance parameter current and standard camera head mould group are right
Each camera module to be measured carries out automatic white balance adjusting；
S103, each camera module to be measured shoot the second picture after automatic white balance adjusting, obtain each described treat
Survey the second white balance parameter current of camera module；
S104, select the to be measured camera module two of the difference of the second white balance parameter current in setting range
Two pairings.
In the matching method of above-mentioned full shot provided in an embodiment of the present invention, camera modules to be measured multiple first are clapped
The first picture is taken the photograph, obtains the first white balance parameter current of each camera module to be measured；Then it is current according to each first white balance
The white balance standard parameter of parameter and standard camera head mould group, automatic white balance adjusting is carried out to each camera module to be measured；It
Each camera module to be measured shoots the second picture after automatic white balance adjusting afterwards, and obtain each camera module to be measured second is white
Balance parameter current；To be measured camera module of the difference of the second white balance parameter current in setting range is finally selected two-by-two to match somebody with somebody
To forming full shot.Automatic white balance adjusting so is carried out to each camera module to be measured, thus it is possible to vary each channel gain makes
The white balance parameter of itself and white balance standard parameter are closer, reduce module color consistency, the second white balance selected
Parameter current is consistent or similar camera module to be measured is composed of full shot two-by-two, it is ensured that the brightness of two modules is consistent
Or deviation is smaller.
Further, in the specific implementation, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, step
Rapid more of the S101 camera modules to be measured shoot the first picture, can specifically include：
Within the time for exposure of setting, multiple camera modules to be measured shoot the first picture；First picture
Center brightness meets setting brightness range.
Such as the time for exposure setting value will be arranged to, the center brightness of the first picture is met that green channel value is 128
(8bit).Specific setting brightness range can depending on actual conditions, as long as a rational scope of comparison, no
Will it is too bright also should not be too dark.
Further, in the specific implementation, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, step
Rapid S101 obtains the first white balance parameter current of each camera module to be measured, specifically may comprise steps of：
First, red R passage average value, green G passages average value and the indigo plant in the first picture central area are calculated
Color channel B average value；
Then, according to the red R passage average value in the first picture central area, green G passages average value and indigo plant
Color channel B average value, calculates ratio R/G of the red R passage average value and the green G passage average values, and described
The ratio B/G of blue channel B average value and the green G passage average values, to obtain the of each camera module to be measured
One white balance parameter current.
When it is implemented, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, in step S102
The white balance standard parameter of the standard camera head mould group can include：In the picture shot according to the standard camera head mould group
Red R passage average value, green G passages average value and blue channel B average value in heart district domain, the red R calculated
Ratio R/G of passage average value and the green G passage average values, and the blue channel average value and the green channel
The ratio B/G of average value.So by by the white balance mark of each first white balance parameter current and standard camera head mould group
Quasi- parameter is made comparisons, that is, can be by corresponding each R/G in the first picture central area and standard camera head in step S102
Make comparisons in the picture central area of module shooting between corresponding standard R/G, and will be corresponding in the first picture central area
Each B/G and corresponding standard B/G in the picture central area that standard camera head mould group is shot between make comparisons, obtain corresponding
Offset data, automatic white balance adjusting is carried out according to offset data to each camera module to be measured.
Further, in the specific implementation, in the matching method of above-mentioned full shot provided in an embodiment of the present invention, step
Rapid S103 obtains the second white balance parameter current of each camera module to be measured, specifically may comprise steps of：
First, red R passage average value, green G passages average value and the indigo plant in the second picture central area are calculated
Color channel B average value；
Then, according to the red R passage average value in the second picture central area, green G passages average value and indigo plant
Color channel B average value, calculates ratio R/G of the red R passage average value and the green G passage average values, and described
The ratio B/G of blue channel B average value and the green G passage average values, to obtain the of each camera module to be measured
Two white balance parameter currents.
In the specific implementation, the area and number of pixel in order to balance, the camera module to be measured and the standard
Camera module all can be use the module of color filter array arrangement, wherein having in the mode of four pixel color filter arrays
Four passages, are respectively Gr passages, R passages, channel B, Gb passages.
Specifically, table 1 lists the first white balance parameter current of each camera module to be measured；Table 2 lists respectively
Second white balance parameter current of the camera module to be measured after automatic white balance adjusting (algorithm is consistent with platform).Wherein
The white balance standard parameter Golden values of standard camera head mould group are R/G=467, B/G=521.
Table 1
| Sequence number | R | G | B | Gr | Gb | R/G | B/G | Gb/Gr |
| 1 | 235 | 488 | 262 | 488 | 489 | 493 | 550 | 1026 |
| 2 | 236 | 492 | 260 | 491 | 493 | 492 | 542 | 1028 |
| 3 | 239 | 499 | 264 | 499 | 499 | 490 | 542 | 1024 |
| 4 | 231 | 491 | 259 | 491 | 491 | 482 | 540 | 1024 |
| 5 | 230 | 486 | 259 | 486 | 486 | 485 | 546 | 1024 |
Table 2
| Sequence number | R | G | B | Gr | Gb | R/G | B/G | Gb/Gr |
| 1 | 235 | 513 | 261 | 513 | 514 | 469 | 521 | 1026 |
| 2 | 237 | 517 | 263 | 516 | 518 | 470 | 522 | 1028 |
| 3 | 239 | 523 | 266 | 523 | 523 | 468 | 521 | 1024 |
| 4 | 232 | 506 | 259 | 506 | 507 | 470 | 524 | 1026 |
| 5 | 232 | 507 | 258 | 507 | 507 | 469 | 521 | 1024 |
This it appears that the photosensitive core of camera module to be measured can be made after automatic white balance adjusting from Tables 1 and 2
Piece sensor gains change, so that cause brightness to change, and R/G, B/G are consistent substantially.It need to only consider in the case bright
The otherness of degree, selects the to be measured camera module of the difference of the second white balance parameter current in setting range two-by-two
Pairing can form 360 ° of full shots.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of full shot, and the full shot is to use
Above-mentioned matching method provided in an embodiment of the present invention carries out what pairing formed, since the principle that the full shot solves the problems, such as is with before
State that a kind of matching method of full shot is similar, therefore the implementation of the full shot may refer to the matching method of full shot
Implement, overlaps will not be repeated.
The matching method and full shot of a kind of full shot provided in an embodiment of the present invention, including：Multiple shootings to be measured
Head mould group shoots the first picture, obtains the first white balance parameter current of each camera module to be measured；According to each first white balance
The white balance standard parameter of parameter current and standard camera head mould group, automatic white balance tune is carried out to each camera module to be measured
Section；Each camera module to be measured shoots the second picture after automatic white balance adjusting, obtains the second of each camera module to be measured
White balance parameter current；To be measured camera module of the difference of the second white balance parameter current in setting range is selected two-by-two to match somebody with somebody
It is right.The present invention carries out automatic white balance adjusting to each camera module to be measured, thus it is possible to vary each channel gain makes the white flat of itself
The parameter that weighs and white balance standard parameter are closer, reduce module color consistency, the second white balance parameter current one selected
Cause or similar camera module to be measured be composed of full shot two-by-two, it is ensured that the brightness of two modules is consistent or deviation compared with
It is small.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there are other identical element in the process, method, article or apparatus that includes the element.
The matching method and full shot of full shot provided by the present invention are described in detail above, herein
Apply specific case to be set forth the principle of the present invention and embodiment, the explanation of above example is only intended to help
Understand the method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention,
There will be changes in specific embodiments and applications, in conclusion this specification content should not be construed as to this
The limitation of invention.
Claims (7)
- A kind of 1. matching method of full shot, it is characterised in that including：Multiple camera modules to be measured shoot the first picture, and the first white balance for obtaining each camera module to be measured is currently joined Number；According to each first white balance parameter current and the white balance standard parameter of standard camera head mould group, to each described to be measured Camera module carries out automatic white balance adjusting；Each camera module to be measured shoots the second picture after automatic white balance adjusting, obtains each shooting head mould to be measured Second white balance parameter current of group；The to be measured camera module of the difference of the second white balance parameter current in setting range is selected to match two-by-two.
- 2. the matching method of full shot according to claim 1, it is characterised in that multiple camera modules to be measured The first picture is shot, is specifically included：Within the time for exposure of setting, multiple camera modules to be measured shoot the first picture；The center of first picture Brightness meets setting brightness range.
- 3. the matching method of full shot according to claim 2, it is characterised in that obtain each shooting head mould to be measured First white balance parameter current of group, specifically includes：The red channel average value in the first picture central area, green channel average value and blue channel is calculated to be averaged Value；It is averaged according to the red channel average value in the first picture central area, green channel average value and blue channel Value, calculates the ratio of the red channel average value and the green channel average value, and the blue channel average value and The ratio of the green channel average value, to obtain the first white balance parameter current of each camera module to be measured.
- 4. the matching method of full shot according to claim 3, it is characterised in that the standard camera head mould group it is white Tension metrics parameter includes the red channel average value, green in the picture central area that is shot according to the standard camera head mould group Chrominance channel average value and blue channel average value, the red channel average value calculated and the green channel average value Ratio, and the ratio of the blue channel average value and the green channel average value.
- 5. the matching method of full shot according to claim 2, it is characterised in that obtain each shooting head mould to be measured Second white balance parameter current of group, specifically includes：The red channel average value in the second picture central area, green channel average value and blue channel is calculated to be averaged Value；It is averaged according to the red channel average value in the second picture central area, green channel average value and blue channel Value, calculates the ratio of the red channel average value and the green channel average value, and the blue channel average value and The ratio of the green channel average value, to obtain the second white balance parameter current of each camera module to be measured.
- 6. according to the matching method of claim 1-5 any one of them full shots, it is characterised in that the camera to be measured Module and the standard camera head mould group are the module arranged using color filter array.
- 7. a kind of full shot, it is characterised in that the full shot is to use the matching side as described in claim any one of 1-6 Method carries out what pairing formed.
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| CN111713096A (en) * | 2019-06-20 | 2020-09-25 | 深圳市大疆创新科技有限公司 | Gain coefficient acquisition method and device |
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| WO2021223185A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市大疆创新科技有限公司 | Camera and alignment method and apparatus therefor, and gimbal |
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| Publication number | Publication date |
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| CN107979726B (en) | 2020-05-22 |
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