CN107896329B - A kind of luminance compensation method of multi-cam mould group - Google Patents
A kind of luminance compensation method of multi-cam mould group Download PDFInfo
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- CN107896329B CN107896329B CN201711129853.5A CN201711129853A CN107896329B CN 107896329 B CN107896329 B CN 107896329B CN 201711129853 A CN201711129853 A CN 201711129853A CN 107896329 B CN107896329 B CN 107896329B
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- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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Abstract
The invention discloses a kind of luminance compensation methods of multi-cam mould group, multi-cam mould group includes feux rouges camera in the same plane, green light camera and blue light camera, the luminance compensation method includes: step 1: providing n multi-cam mould groups to be measured, n >=2；Step 2: obtaining feux rouges luminance standard value, the blue light brightness standard value of the green light luminance standard value of green light camera and blue light camera of the feux rouges camera in standard multi-cam mould group；Step 3: calibration burning being carried out to the feux rouges camera in multi-cam mould group to be measured according to feux rouges luminance standard value, calibration burning is carried out to the green light camera in multi-cam mould group to be measured according to green light luminance standard value, calibration burning is carried out to the blue light camera in multi-cam mould group to be measured according to blue light brightness standard value.The luminance compensation method is used for the brightness to each multi-cam mould group in same batch and carries out compensation for calibrating errors, keeps the brightness of image of each multi-cam mould group consistent.
Description
Technical field
The present invention relates to field of photography more particularly to a kind of luminance compensation methods of multi-cam mould group.
Background technique
With the development of cell-phone camera technology, multi-cam mould group is the future trend of mobile phone camera module.Using by red
Light video camera head, green light camera and blue light camera are respectively acquired feux rouges, green light and the blue light in visible light, finally
Synthesis one color image of output, can compared to the existing RGB camera using Bayer filter+Demosaicing algorithm
Obtain more spectral informations, better image quality.
But due to the material and assembling difference between different multi-cam mould groups, meeting between different multi-cam mould groups
Have inconsistent in brightness, it is therefore desirable to the brightness between each multi-cam mould group is being corrected compensation before factory, with
Solve consistency problem.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provides a kind of luminance compensation method of multi-cam mould group,
Compensation for calibrating errors is carried out for the brightness to each multi-cam mould group in same batch, makes the imaging of each multi-cam mould group
Brightness is consistent.
The technical problems to be solved by the invention are achieved by the following technical programs:
A kind of luminance compensation method of multi-cam mould group, multi-cam mould group include that feux rouges in the same plane is taken the photograph
As head, green light camera and blue light camera, the luminance compensation method include:
Step 1: n multi-cam mould groups to be measured, n >=2 are provided；
Step 2: obtaining the feux rouges luminance standard value of feux rouges camera in standard multi-cam mould group, green light camera
The blue light brightness standard value of green light luminance standard value and blue light camera；
Step 3: calibration burning is carried out to the feux rouges camera in multi-cam mould group to be measured according to feux rouges luminance standard value,
Calibration burning is carried out to the green light camera in multi-cam mould group to be measured according to green light luminance standard value, according to blue light brightness mark
Quasi- value carries out calibration burning to the blue light camera in multi-cam mould group to be measured.
Further, the step 2 includes:
Step 2.1: a standard multi-cam mould group is provided；
Step 2.2: by feux rouges camera, green light camera and the blue light camera in standard multi-cam mould group respectively with
The identical time for exposure is exposed, and obtains the green light brightness inspection of the feux rouges brightness detected value, green light camera of feux rouges camera
The blue light brightness detected value of measured value and blue light camera；
Step 2.3: bright as feux rouges using feux rouges brightness detected value, green light brightness detected value and blue light brightness detected value
Spend standard value, green light luminance standard value and blue light brightness standard value.
Further, the step 2 includes:
Step 2.1: feux rouges brightness detected value, the green light for obtaining the feux rouges camera in all multi-cam mould groups to be measured are taken the photograph
As the green light brightness detected value of head and the blue light brightness detected value of blue light camera；
Step 2.2: according to feux rouges luminance test value, green light luminance test value and blue light brightness test value, calculating all
The first brightness ratio and the second brightness ratio of multi-cam mould group to be measured, wherein the first brightness ratio=feux rouges luminance test
Value/green light luminance test value, the second brightness ratio=blue light brightness test value/green light luminance test value；
Step 2.3: according to the distribution of the first brightness ratio and the second brightness ratio, from all multi-cam mould groups to be measured
M multi-cam mould groups to be measured being located in critical field are picked out as standard multi-cam mould group, m >=1；
Step 2.4: using the feux rouges brightness detected value of the feux rouges camera in standard multi-cam mould group as feux rouges brightness
Standard value, using the green light brightness detected value of the green light camera in standard multi-cam mould group as green light luminance standard value, with
The blue light brightness detected value of blue light camera in standard multi-cam mould group is as blue light brightness standard value.
Further, the step 2.1 includes；
Step 2.1.1: by feux rouges camera, green light camera and the blue light camera in single multi-cam mould group to be measured
It is exposed respectively with the identical time for exposure, obtains the feux rouges luminance test value of feux rouges camera, the green light of green light camera
The blue light brightness test value of luminance test value and blue light camera；
Step 2.1.2: repeating step 2.1.1, until obtaining the feux rouges camera in all multi-cam mould groups to be measured
The blue light brightness test value of feux rouges luminance test value, the green light luminance test value of green light camera and blue light camera.
Further, the step 2.3 includes:
Step 2.3.1: establishing rectangular coordinate system XY, using the first brightness ratio as X, using the second brightness ratio as Y, obtains
Obtain scatter plot of all multi-cam mould groups to be measured on rectangular coordinate system XY；
Step 2.3.2: multi-cam mould group conduct mark to be measured corresponding to the point on scatter plot within the scope of selection standard
Quasi- multi-cam mould group.
Further, the critical field of the first brightness ratio is average value ± 2%, the second brightness ratio of the first brightness ratio
The critical field of value is average value ± 2% of the second brightness ratio.
Further, in the step 3, the multi-cam mould group to be measured for carrying out calibration burning is not included in step 2.3
The standard multi-cam mould group picked out.
Further, in the step 3, feux rouges camera, green light camera in a multi-cam mould group to be measured and
Feux rouges luminance standard value, green light luminance standard value and blue light brightness mark of the blue light camera according to a standard multi-cam mould group
Quasi- value carries out calibration burning.
Further, all multi-cam mould groups to be measured of calibration burning are carried out according to same standard multi-cam mould group
Feux rouges luminance standard value, green light luminance standard value and blue light brightness standard value carry out calibration burning, alternatively, carrying out calibration burning
Different multi-cam mould groups to be measured according to the feux rouges luminance standard value of various criterion multi-cam mould groups, green light luminance standard value and
Blue light brightness standard value carries out calibration burning.
Further, the step 3 includes:
Step 3.1: obtaining feux rouges brightness detected value, the green light camera of the feux rouges camera in multi-cam mould group to be measured
Green light brightness detected value and blue light camera blue light brightness detected value；
Step 3.2: calculating feux rouges brightness gain values, the green light camera shooting of the feux rouges camera in multi-cam mould group to be measured
The green light brightness gain values of head and the blue light brightness yield value of blue light camera, in which: feux rouges brightness gain values=feux rouges brightness inspection
Measured value/feux rouges luminance standard value, green light brightness gain values=green light brightness detected value/green light luminance standard value, blue light brightness gain
Value=blue light brightness detected value/blue light brightness standard value；
Step 3.3: the feux rouges of corresponding feux rouges brightness gain values burning into corresponding multi-cam mould group to be measured is imaged
It, will be corresponding by corresponding green light brightness gain values burning into the green light camera of corresponding multi-cam mould group to be measured in head
The burning of blue light brightness yield value into the blue light camera of corresponding multi-cam mould group to be measured；
Alternatively, the step 3 includes:
Step 3.1: transferring the feux rouges brightness inspection of the feux rouges camera in the multi-cam mould group to be measured obtained in step 2.1
The blue light brightness detected value of measured value, the green light brightness detected value of green light camera and blue light camera；
Step 3.2: calculating feux rouges brightness gain values, the green light camera shooting of the feux rouges camera in multi-cam mould group to be measured
The green light brightness gain values of head and the blue light brightness yield value of blue light camera, in which: feux rouges brightness gain values=feux rouges brightness inspection
Measured value/feux rouges luminance standard value, green light brightness gain values=green light brightness detected value/green light luminance standard value, blue light brightness gain
Value=blue light brightness detected value/blue light brightness standard value；
Step 3.3: the feux rouges of corresponding feux rouges brightness gain values burning into corresponding multi-cam mould group to be measured is imaged
It, will be corresponding by corresponding green light brightness gain values burning into the green light camera of corresponding multi-cam mould group to be measured in head
The burning of blue light brightness yield value into the blue light camera of corresponding multi-cam mould group to be measured.
The invention has the following beneficial effects: the luminance compensation method obtain first feux rouges camera, green light camera and
Then the luminance standard value of blue light camera is respectively used to the luminance standard value to calibrate the feux rouges in multi-cam mould group to be measured and take the photograph
As head, green light camera and blue light camera, can be used for the luminance difference between each multi-cam mould group in same batch
Different carry out compensation for calibrating errors, keeps the brightness of image between each multi-cam mould group consistent.
Detailed description of the invention
Fig. 1 is the step block diagram of the luminance compensation method of multi-cam mould group provided by the invention；
Fig. 2 is the block diagram step by step of the step 2 of the luminance compensation method of multi-cam mould group shown in FIG. 1；
Fig. 3 is the block diagram step by step of another step 2 of the luminance compensation method of multi-cam mould group shown in FIG. 1；
Fig. 4 is the scatter plot in the step 2.3 of the luminance compensation method of multi-cam mould group shown in Fig. 3；
Fig. 5 is the block diagram step by step of the step 3 of the luminance compensation method of multi-cam mould group shown in FIG. 1.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of luminance compensation method of multi-cam mould group, multi-cam mould group includes being generally aligned in the same plane
On feux rouges camera, green light camera and blue light camera, which includes:
Step 1: n multi-cam mould groups to be measured, n >=2 are provided；
In the step 1, n multi-cam mould groups to be measured are to need to carry out luminance compensation, to reach imaging when in use
Brightness is able to maintain the mould group of consistent same batch.
Step 2: obtaining the feux rouges luminance standard value of feux rouges camera in standard multi-cam mould group, green light camera
The blue light brightness standard value of green light luminance standard value and blue light camera；
There are two types of sources for standard multi-cam mould group in the step 2, one is what is provided by client, the mark in this source
Quasi- multi-cam mould group it is general only one；Another kind be it is select from multi-cam mould group to be measured, this source
The general more than one of standard multi-cam mould group.
If standard multi-cam mould group is if being provided by client, as shown in Fig. 2, the step 2 includes:
Step 2.1: a standard multi-cam mould group is provided；
Step 2.2: by feux rouges camera, green light camera and the blue light camera in standard multi-cam mould group respectively with
The identical time for exposure is exposed, and obtains the green light brightness inspection of the feux rouges brightness detected value, green light camera of feux rouges camera
The blue light brightness detected value of measured value and blue light camera；
Step 2.3: bright as feux rouges using feux rouges brightness detected value, green light brightness detected value and blue light brightness detected value
Spend standard value, green light luminance standard value and blue light brightness standard value.
Specifically, the step 2.2 includes:
Step 2.2.1: the luminance test value of one of camera in standard multi-cam mould group is exposed to specific
In range, the time for exposure of the camera is obtained；
Step 2.2.2: by other two cameras in standard multi-cam mould group respectively with the time for exposure of acquisition into
Row exposure, obtains the luminance test value of other two cameras.
Preferably, the particular range is 190-210nit；What is be exposed in the step 2.2.1 is green camera shooting
Head, what is be exposed in the step 2.2.2 is feux rouges camera and blue light camera.
It illustrates, since green light is more sensitive to brightness, the green light in standard multi-cam mould group is taken the photograph first
As head is exposed, then be used for the exposure of feux rouges camera and blue light camera, Ke Yiti the time for exposure of green light camera
High feux rouges luminance standard value, the precision of green light luminance standard value and blue light brightness standard value, that is to say, that in practical operation,
Feux rouges camera or blue light camera can also be exposed in the step 2.2.1 first, then in the step 2.2.2
In other two cameras are exposed.
If standard multi-cam mould group is if picking out from multi-cam mould group to be measured, as shown in figure 3, described
Step 2 includes:
Step 2.1: feux rouges brightness detected value, the green light for obtaining the feux rouges camera in all multi-cam mould groups to be measured are taken the photograph
As the green light brightness detected value of head and the blue light brightness detected value of blue light camera；
Specifically, the step 2.1 includes；
Step 2.1.1: by feux rouges camera, green light camera and the blue light camera in single multi-cam mould group to be measured
It is exposed respectively with the identical time for exposure, obtains the feux rouges luminance test value of feux rouges camera, the green light of green light camera
The blue light brightness test value of luminance test value and blue light camera；
Step 2.1.2: repeating step 2.1.1, until obtaining the feux rouges camera in all multi-cam mould groups to be measured
The blue light brightness test value of feux rouges luminance test value, the green light luminance test value of green light camera and blue light camera.
Specifically, the step 2.1.1 includes:
Step 2.1.1.1: the luminance test value of one of camera in single multi-cam mould group to be measured is exposed
To particular range, the time for exposure of the camera is obtained；
Step 2.1.1.2: by other two cameras in single multi-cam mould group to be measured respectively with the exposure of acquisition
Time is exposed, and obtains the luminance test value of other two cameras.
Preferably, the particular range is 190-210nit；What is be exposed in the step 2.1.1.1 is that green is taken the photograph
As head, what is be exposed in the step 2.1.1.2 is feux rouges camera and blue light camera.
It illustrates, since green light is more sensitive to brightness, the green light in multi-cam mould group to be measured is taken the photograph first
As head is exposed, then be used for the exposure of feux rouges camera and blue light camera, Ke Yiti the time for exposure of green light camera
High feux rouges luminance test value, the precision of green light luminance test value and blue light brightness test value, that is to say, that in practical operation,
Feux rouges camera or blue light camera can also be exposed in the step 2.1.1.1 first, then in the step
2.1.1.2 other two cameras are exposed in.
In addition, in step 2.1.1.1, the camera that is exposed first in different multi-cam mould groups to be measured it is bright
Degree test value can be exposed to identical value or different value in particular range.
Step 2.2: according to feux rouges luminance test value, green light luminance test value and blue light brightness test value, calculating all
The first brightness ratio and the second brightness ratio of multi-cam mould group to be measured, wherein the first brightness ratio=feux rouges luminance test
Value/green light luminance test value, the second brightness ratio=blue light brightness test value/green light luminance test value；
Step 2.3: according to the distribution of the first brightness ratio and the second brightness ratio, from all multi-cam mould groups to be measured
M multi-cam mould groups to be measured being located in critical field are picked out as standard multi-cam mould group, m >=1；
Specifically, the step 2.3 includes:
Step 2.3.1: as shown in figure 4, rectangular coordinate system XY is established, using the first brightness ratio as X, with the second brightness ratio
Value is used as Y, obtains scatter plot of all multi-cam mould groups to be measured on rectangular coordinate system XY；
Step 2.3.2: multi-cam mould group conduct mark to be measured corresponding to the point on scatter plot within the scope of selection standard
Quasi- multi-cam mould group.
Preferably, the critical field of the first brightness ratio is average value ± 2%, the second brightness ratio of the first brightness ratio
Critical field be the second brightness ratio average value ± 2%.
Step 2.4: using the feux rouges brightness detected value of the feux rouges camera in standard multi-cam mould group as feux rouges brightness
Standard value, using the green light brightness detected value of the green light camera in standard multi-cam mould group as green light luminance standard value, with
The blue light brightness detected value of blue light camera in standard multi-cam mould group is as blue light brightness standard value.
It illustrates, the standard multi-cam mould group picked out in the step 2.3 can be one, or
It is multiple, that is to say, that feux rouges luminance standard value, green light luminance standard value and blue light brightness standard value in the step 2.4 can be with
It is one group, or multiple groups.
Step 3: calibration burning is carried out to the feux rouges camera in multi-cam mould group to be measured according to feux rouges luminance standard value,
Calibration burning is carried out to the green light camera in multi-cam mould group to be measured according to green light luminance standard value, according to blue light brightness mark
Quasi- value carries out calibration burning to the blue light camera in multi-cam mould group to be measured.
It illustrates, if the standard multi-cam mould group in step 2 is the multi-cam mould group to be measured from same batch
In pick out if, then in the step 3, the multi-cam mould group to be measured for carrying out calibration burning is not included in step 2.3 and chooses
The standard multi-cam mould group selected.
If the standard multi-cam mould group picked out in the step 2.3 is multiple, in the step 3, one
Feux rouges camera, green light camera and blue light camera in multi-cam mould group to be measured is according to a standard multi-cam mould group
Feux rouges luminance standard value, green light luminance standard value and blue light brightness standard value carry out calibration burning.
Feux rouges camera, green light camera and the blue light carried out in all multi-cam mould groups to be measured of calibration burning is taken the photograph
As head according to same standard multi-cam mould group feux rouges luminance standard value, green light luminance standard value and blue light brightness standard value into
Row calibration burning, alternatively, carry out the feux rouges camera in the difference multi-cam mould groups to be measured of calibration burning, green light camera and
Feux rouges luminance standard value, green light luminance standard value and blue light brightness mark of the blue light camera according to various criterion multi-cam mould group
Quasi- value carries out calibration burning.
Specifically, as shown in figure 5, the step 3 includes:
Step 3.1: calculating feux rouges brightness gain values, the green light camera shooting of the feux rouges camera in multi-cam mould group to be measured
The green light brightness gain values of head and the blue light brightness yield value of blue light camera, in which: feux rouges brightness gain values=feux rouges brightness inspection
Measured value/feux rouges luminance standard value, green light brightness gain values=green light brightness detected value/green light luminance standard value, blue light brightness gain
Value=blue light brightness detected value/blue light brightness standard value；
If the standard multi-cam mould group in step 2 is step if picking out from multi-cam mould group to be measured
3.1: feux rouges brightness detected value, the green light for transferring the feux rouges camera in the multi-cam mould group to be measured obtained in step 2.1 are taken the photograph
As the green light brightness detected value of head and the blue light brightness detected value of blue light camera.
Step 3.2: the feux rouges of corresponding feux rouges brightness gain values burning into corresponding multi-cam mould group to be measured is imaged
It, will be corresponding by corresponding green light brightness gain values burning into the green light camera of corresponding multi-cam mould group to be measured in head
The burning of blue light brightness yield value into the blue light camera of corresponding multi-cam mould group to be measured.
In entire luminance compensation method, it is preferable that the luminance test value of each camera is with the bright of respective central area
It spends subject to average value, i.e., luminance test value described in the present embodiment refers to each in the central area of corresponding camera
The average value of the brightness value of pixel, the range of the central area can depending on different demands, can centered on eight/
/ 10th region of one region or center etc., with no restriction.
The luminance compensation method obtains the luminance standard value of feux rouges camera, green light camera and blue light camera first,
Then feux rouges camera, green light camera and blue light that luminance standard value is respectively used to calibrate in multi-cam mould group to be measured are taken the photograph
As head, it can be used for carrying out compensation for calibrating errors to the luminance difference between each multi-cam mould group in same batch, make each more
Brightness of image between camera module is consistent.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as, as long as skill obtained in the form of equivalent substitutions or equivalent transformations
Art scheme should all be fallen within the scope and spirit of the invention.
Claims (8)
1. a kind of luminance compensation method of multi-cam mould group, it is characterised in that: multi-cam mould group includes being generally aligned in the same plane
On feux rouges camera, green light camera and blue light camera, which includes:
Step 1: n multi-cam mould groups to be measured, n >=2 are provided；
Step 2: obtaining the feux rouges luminance standard value of the feux rouges camera in standard multi-cam mould group, the green light of green light camera
The blue light brightness standard value of luminance standard value and blue light camera；
Step 3: calibration burning, foundation being carried out to the feux rouges camera in multi-cam mould group to be measured according to feux rouges luminance standard value
Green light luminance standard value carries out calibration burning to the green light camera in multi-cam mould group to be measured, according to blue light brightness standard value
Calibration burning is carried out to the blue light camera in multi-cam mould group to be measured；Wherein
The step 2 includes:
Step 2.1: obtaining feux rouges brightness detected value, the green light camera of the feux rouges camera in all multi-cam mould groups to be measured
Green light brightness detected value and blue light camera blue light brightness detected value；
Step 2.2: according to feux rouges luminance test value, green light luminance test value and blue light brightness test value, calculating all to be measured
The first brightness ratio and the second brightness ratio of multi-cam mould group, wherein the first brightness ratio=feux rouges luminance test value/green
Brightness test value, the second brightness ratio=blue light brightness test value/green light luminance test value；
Step 2.3: according to the distribution of the first brightness ratio and the second brightness ratio, being selected from all multi-cam mould groups to be measured
It is located at m multi-cam mould groups to be measured in critical field out as standard multi-cam mould group, m >=1；
Step 2.4: using the feux rouges brightness detected value of the feux rouges camera in standard multi-cam mould group as feux rouges luminance standard
Value, using the green light brightness detected value of the green light camera in standard multi-cam mould group as green light luminance standard value, with standard
The blue light brightness detected value of blue light camera in multi-cam mould group is as blue light brightness standard value.
2. the luminance compensation method of multi-cam mould group according to claim 1, it is characterised in that: step 2.1 packet
It includes；
Step 2.1.1: feux rouges camera, green light camera and the blue light camera in single multi-cam mould group to be measured are distinguished
It is exposed with the identical time for exposure, obtains the green light brightness of the feux rouges luminance test value, green light camera of feux rouges camera
The blue light brightness test value of test value and blue light camera；
Step 2.1.2: repeating step 2.1.1, until obtaining the feux rouges of the feux rouges camera in all multi-cam mould groups to be measured
The blue light brightness test value of luminance test value, the green light luminance test value of green light camera and blue light camera.
3. the luminance compensation method of multi-cam mould group according to claim 1, it is characterised in that: step 2.3 packet
It includes:
Step 2.3.1: establishing rectangular coordinate system XY, using the first brightness ratio as X, using the second brightness ratio as Y, obtains institute
There is scatter plot of the multi-cam mould group to be measured on rectangular coordinate system XY；
Step 2.3.2: multi-cam mould group to be measured corresponding to the point on scatter plot within the scope of selection standard is more as standard
Camera module.
4. the luminance compensation method of multi-cam mould group according to claim 1 or 3, it is characterised in that: the first brightness ratio
The critical field of value is that the critical field of average value ± 2%, the second brightness ratio of the first brightness ratio is the second brightness ratio
Average value ± 2%.
5. the luminance compensation method of multi-cam mould group according to claim 1, it is characterised in that: in the step 3, into
The multi-cam mould group to be measured of row calibration burning does not include the standard multi-cam mould group picked out in step 2.3.
6. the luminance compensation method of multi-cam mould group according to claim 5, it is characterised in that: in the step 3, one
Feux rouges camera, green light camera and blue light camera in a multi-cam mould group to be measured is according to a standard multi-cam mould
Feux rouges luminance standard value, green light luminance standard value and the blue light brightness standard value of group carry out calibration burning.
7. the luminance compensation method of multi-cam mould group according to claim 6, it is characterised in that: carry out calibration burning
All multi-cam mould groups to be measured according to the feux rouges luminance standard value of same standard multi-cam mould group, green light luminance standard value and
Blue light brightness standard value carries out calibration burning, alternatively, carrying out the difference multi-cam mould group to be measured of calibration burning according to different marks
Feux rouges luminance standard value, green light luminance standard value and the blue light brightness standard value of quasi- multi-cam mould group carry out calibration burning.
8. the luminance compensation method of multi-cam mould group according to claim 1, it is characterised in that: the step 3 includes:
Step 3.1: obtain the feux rouges brightness detected value of the feux rouges camera in multi-cam mould group to be measured, green light camera it is green
The blue light brightness detected value of brightness detected value and blue light camera；
Step 3.2: calculating the feux rouges brightness gain values of the feux rouges camera in multi-cam mould group to be measured, green light camera
The blue light brightness yield value of green light brightness gain values and blue light camera, in which: feux rouges brightness gain values=feux rouges brightness detection
Value/feux rouges luminance standard value, green light brightness gain values=green light brightness detected value/green light luminance standard value, blue light brightness yield value
=blue light brightness detected value/blue light brightness standard value；
Step 3.3: by corresponding feux rouges brightness gain values burning into the feux rouges camera of corresponding multi-cam mould group to be measured,
By corresponding green light brightness gain values burning into the green light camera of corresponding multi-cam mould group to be measured, by corresponding blue light
Brightness gain values burning is into the blue light camera of corresponding multi-cam mould group to be measured；
Alternatively, the step 3 includes:
Step 3.1: transferring the feux rouges brightness detection of the feux rouges camera in the multi-cam mould group to be measured obtained in step 2.1
The blue light brightness detected value of value, the green light brightness detected value of green light camera and blue light camera；
Step 3.2: calculating the feux rouges brightness gain values of the feux rouges camera in multi-cam mould group to be measured, green light camera
The blue light brightness yield value of green light brightness gain values and blue light camera, in which: feux rouges brightness gain values=feux rouges brightness detection
Value/feux rouges luminance standard value, green light brightness gain values=green light brightness detected value/green light luminance standard value, blue light brightness yield value
=blue light brightness detected value/blue light brightness standard value；
Step 3.3: by corresponding feux rouges brightness gain values burning into the feux rouges camera of corresponding multi-cam mould group to be measured,
By corresponding green light brightness gain values burning into the green light camera of corresponding multi-cam mould group to be measured, by corresponding blue light
Brightness gain values burning is into the blue light camera of corresponding multi-cam mould group to be measured.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129853.5A CN107896329B (en) | 2017-11-15 | 2017-11-15 | A kind of luminance compensation method of multi-cam mould group |
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| CN201711129853.5A CN107896329B (en) | 2017-11-15 | 2017-11-15 | A kind of luminance compensation method of multi-cam mould group |
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| JP2005156243A (en) * | 2003-11-21 | 2005-06-16 | Konica Minolta Sensing Inc | Spectral intensity measuring device, calibration method therefor, spectral reflection characteristic measuring device, and calibration method therefor |
| CN102685513A (en) * | 2012-05-21 | 2012-09-19 | 信利光电(汕尾)有限公司 | White balance processing method and device |
| CN203327181U (en) * | 2013-06-21 | 2013-12-04 | 豪威科技(上海)有限公司 | Multi-camera-module testing tool |
| CN103765503A (en) * | 2011-08-29 | 2014-04-30 | 高通股份有限公司 | Fast calibration of displays using spectral-based colorimetrically calibrated multicolor camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005156243A (en) * | 2003-11-21 | 2005-06-16 | Konica Minolta Sensing Inc | Spectral intensity measuring device, calibration method therefor, spectral reflection characteristic measuring device, and calibration method therefor |
| CN103765503A (en) * | 2011-08-29 | 2014-04-30 | 高通股份有限公司 | Fast calibration of displays using spectral-based colorimetrically calibrated multicolor camera |
| CN102685513A (en) * | 2012-05-21 | 2012-09-19 | 信利光电(汕尾)有限公司 | White balance processing method and device |
| CN203327181U (en) * | 2013-06-21 | 2013-12-04 | 豪威科技(上海)有限公司 | Multi-camera-module testing tool |
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