CN106448546A - Method for automatically adjusting imaging area and method for correcting LED brightness and chrominance - Google Patents
Method for automatically adjusting imaging area and method for correcting LED brightness and chrominance Download PDFInfo
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- CN106448546A CN106448546A CN201611009395.7A CN201611009395A CN106448546A CN 106448546 A CN106448546 A CN 106448546A CN 201611009395 A CN201611009395 A CN 201611009395A CN 106448546 A CN106448546 A CN 106448546A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The invention provides a method for automatically adjusting imaging area. The method includes: using the current focusing position of a camera as the starting point to control the camera to traverse focusing positions along a first direction in a micro focal ring adjustable range; if the focusing position when the imaging area of a single display unit in the corresponding target shooting area is located in a preset threshold range is not found after the traversing, controlling the camera to automatically focus to the clearest position of an image, using the clearest position as the starting point to control the camera to traverse the focusing positons along a second direction in the micro focal ring adjustable range of the camera, or controlling the camera to directly adjust a micro focal ring to the extreme focusing position of the micro focal ring along the second direction, and using the extreme focusing position as the starting point to traverse the focusing positions in the micro focal ring adjustable range. The invention further provides a method for correcting LED brightness and chrominance, and the method uses the method above. The method for automatically adjusting imaging area and the method for correcting LED brightness and chrominance have the advantages that the imaging area is controlled automatically through software, a user can perform the correcting conveniently, and correcting automation is achieved.
Description
Technical field
The present invention relates to display alignment technique field, more particularly, to a kind of automatically adjust imaging surface amass size method and
A kind of LED bright chroma bearing calibration.
Background technology
Since 21 century, colored display industry is developed on an unprecedented scale, and the center that LED display has also spread all over each city is wide
Field, commercial mansion.LED display with its distinctive bright in luster, visual high, low in energy consumption the advantages of receive great acclaim, but by
In current LED display manufacturing technology level relatively low so that there is larger bright chroma difference in the LED lamp tube itself produced
(for example same production batch LED, its brightness may differ by nearly 50%, and colourity may differ by 15～20nm), and multiple different raw
Produce the display screen of batch LED splicing, its bright chroma difference is just more serious.These bright chroma differences are for human eye vision
Intolerable, so LED display that is new production or using year in year out needs to carry out effective bright chroma regulation.
In correction, image capture device is needed to gather suitable view data.Imaging area is usually used to describe LED
Lamp point is imaged shared pixel count in camera chip, and lamp point imaging area is excessive or too small all can go wrong.If become
Image planes are amassed too small, then show that imaging is too sharp, the phenomenons such as moire fringes after easily causing correction；Whereas if imaging surface
Long-pending too big, then show that imaging is too fuzzy, be unfavorable for point location.
, during using Canon digital camera collection LED point initial data, Canon is digital taking Canon digital camera as a example
Camera has auto-focusing in itself to the most clearly function, but focus to the most clear when, imaging area might not properly it is possible to
Imaging area is too small.
Content of the invention
Therefore, for overcoming of the prior art not enough and defect, the present invention proposes one kind and automatically adjusts the long-pending size of imaging surface
Method and a kind of LED bright chroma bearing calibration.
Specifically, a kind of method automatically adjusting the long-pending size of imaging surface that the embodiment of the present invention proposes, including step：(i)
Control camera that target shooting area is carried out with image taking to include to obtain the first shooting image, wherein said target shooting area
Multiple display units；(ii) described first shooting image is carried out with image analysis processing operation and exports the first of described display unit
Imaging area simultaneously judges whether described first imaging area is located in preset threshold range；(iii) if described first imaging area
Beyond described preset threshold range, described camera is controlled to can adjust in micro- Jiao's ring of described camera with current focusing position for starting point
In the range of travel through focusing position in the first direction, for finding out the imaging area of the corresponding described display unit of follow-up shooting image
Focusing position when in described preset threshold range；Wherein, step (iii) includes step：(iii-a) described in every control
Camera is adjusted once after described micro- Jiao's ring along described first direction, controls described camera to carry out image to described target shooting area
Shoot to obtain the second shooting image, that described second shooting image carried out with image analysis processing operation is single to export described display
Second imaging area of unit simultaneously judges whether described second imaging area is located in described preset threshold range.
In one embodiment of the invention, step (iii-a) includes step：Described camera is controlled to specify with the first multiple
Step-length adjusts once described micro- Jiao's ring along described first direction；And in described camera, step-length is specified along institute with described first multiple
State first direction adjust once described micro- Jiao ring after, if described second imaging area be less than described preset threshold range threshold value under
Limit, controls described camera to specify step-length to adjust once described micro- Jiao's ring along described first direction with the second multiple；Wherein said
Diploidy number is more than described first multiple.
In one embodiment of the invention, step (iii-a) also includes step：In described camera with described second multiple
Specified step-length adjusts once after described micro- Jiao's ring along described first direction, if described second imaging area is more than described predetermined threshold value
The upper threshold of scope, controls described camera first described micro- Jiao's loopback to be adjusted to described camera and specifies step-length with described second multiple
Adjust state before described micro- Jiao's ring, control described camera to specify step-length along described with triple again along described first direction
First direction adjusts once described micro- Jiao's ring；Wherein said triple is less than described second multiple.
In one embodiment of the invention, step (iii) also includes step：(iii-b) if controlling described camera along institute
State the imaging area not finding out described display unit after first direction has traveled through focusing position in described preset threshold range
When focusing position, control described camera auto-focusing to the most clear position of image and with the most clear position of described image as starting point
Travel through focusing position in a second direction in described micro- Jiao's ring adjustable extent of described camera；Wherein said second direction and institute
State first direction contrary.
In an alternate embodiment of the present invention where, step (iii) also includes step：(iii-b) if controlling described camera
Travel through the imaging area not finding out described display unit after focusing position along described first direction positioned at described predetermined threshold value model
Focusing position when enclosing interior, control described camera by described micro- Jiao ring directly adjust in a second direction to described micro- Jiao ring extreme
Focusing position and with described extreme focusing position for starting point described camera described micro- Jiao ring adjustable extent in again along institute
State first direction traversal focusing position；Wherein said second direction is opposite to the first direction.
In one embodiment of the invention, the described method automatically adjusting the long-pending size of imaging surface was gone back before step (i)
Including step：Control described camera auto-focusing to the most clear position of image.
In one embodiment of the invention, the image analysis processing operation in step (ii) includes saturation analysis, phase
Described first imaging area is answered to be to carry out the imaging surface that intensity value obtained from described saturation analysis is under normal circumstances
Long-pending.
Additionally, a kind of method automatically adjusting the long-pending size of imaging surface that yet another embodiment of the invention proposes, including step：With
Camera auto-focusing to the most clear position of image is starting point, controls described camera in micro- Jiao's ring adjustable extent of described camera
Travel through focusing position in the first direction, for finding out the one-tenth of the single display unit in the corresponding target shooting area of shooting image
Focusing position when image planes are amassed in preset threshold range；And if it is right to control described camera to travel through along described first direction
The focusing position when imaging area not finding out corresponding described display unit behind burnt position is in described preset threshold range, control
Make described camera again auto-focusing to the most clear position of image and with the most clear position of described image for starting point in described camera
Described micro- Jiao ring adjustable extent in travel through focusing position in a second direction；Wherein said second direction and described first direction
On the contrary.
Furthermore, a kind of method automatically adjusting the long-pending size of imaging surface that another embodiment of the present invention proposes, including step：With
The current focusing position of camera is starting point, control described camera in micro- Jiao's ring adjustable extent of described camera in the first direction time
Go through focusing position, the imaging area for finding out the single display unit in the corresponding target shooting area of shooting image is located at pre-
If focusing position when in threshold range；And if the described camera of control has traveled through along described first direction and has not looked for after focusing position
The focusing position when imaging area going out corresponding described display unit is in described preset threshold range, the described camera of control will
Described micro- Jiao's ring directly adjusts the extreme focusing position to described micro- Jiao's ring in a second direction and with described extreme focusing position is
Starting point travels through focusing position along described first direction in described micro- Jiao's ring adjustable extent of described camera again；Wherein said
Second direction is opposite to the first direction.
Finally, further embodiment of this invention also proposes a kind of LED bright chroma bearing calibration, including step：Camera is aligned
The target shooting area as region to be corrected of LED display；Execution aforementioned any one automatically adjust imaging surface amass big
Little method；And the focusing position when the imaging area finding out corresponding single display unit is located in described preset threshold range
Postpone, control described camera that described target shooting area is carried out with image taking and correct use to obtain shooting image as bright chroma
Image.
From the foregoing, it will be observed that the embodiment of the present invention automatically controls imaging area by software, thus facilitating user to be corrected,
Furthermore achieved that the automation of correcting process.
By the detailed description below with reference to accompanying drawing, the other side of the present invention and feature become obvious.But should know
Road, this accompanying drawing is only the purpose design explained, not as the restriction of the scope of the present invention.It should also be noted that it is unless another
Point out that outward they only try hard to structure described herein and flow process are conceptually described it is not necessary to scale accompanying drawing.
Brief description
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the process schematic automatically controlling camera adjustments micro- Jiao ring of first embodiment of the invention.
Fig. 2 be first embodiment of the invention automatically adjust imaging surface amass method flow diagram.
Fig. 3 is the process schematic automatically controlling camera adjustments micro- Jiao ring of second embodiment of the invention.
Fig. 4 be second embodiment of the invention automatically adjust imaging surface amass method flow diagram.
Specific embodiment
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
The following embodiment of the present invention automatically controls camera adjustment micro- Jiao ring by control software and realizes focusing, to be fitted
Close LED bright chroma correction display unit imaging area, thus facilitating user to be corrected, realize further correcting process from
Dynamicization.Herein, display unit imaging area is, for example, imaging surface in shooting image for the single led lamp point in LED viewing area
Long-pending (for example being represented with the image prime number amount taking), and LED viewing area can be the whole of LED display in trimming process
Viewing area, the partial display area of LED display, LED box viewing area or LED lamp panel viewing area etc.；And control soft
Part may be mounted on host computer such as PC and host computer can pass through USB data line etc. and electrically connect with camera formation.
【First embodiment】
First embodiment of the invention with camera auto-focusing to the most clear position of image as basic point, can automatically control by control software
Camera processed such as Canon digital camera adjusts micro- Jiao's ring to adjust imaging definition, and camera has Far pattern and Near pattern etc. two
The pattern of kind, each pattern has multiple gears (corresponding to multiple step-lengths respectively) such as three gears, namely gear III changes focal length
Greatly, gear II takes second place, and gear I is minimum.Wherein, Far pattern is to adjust to the right micro- Jiao's ring, and Near pattern is to adjust micro- Jiao to the left
Ring.In theory, micro- Jiao's ring is adjusted to high order end and low order end, is all the larger position of imaging area, between, having is at one
Imaging area minimum.The present embodiment automatically adjusts imaging surface using control software and amasss size it is simply that passing through automatic control and adjustment
Micro- Jiao ring come to adjust imaging definition so that reach adjust imaging area size purpose.The threshold of imaging area size is previously set
The value upper limit is MaxArea and bottom threshold is MinArea, then automatically control camera and carry out the flow process that micro- Jiao's ring adjusts and will combine
Fig. 1 and Fig. 2 is described as follows：
A) camera auto-focusing is controlled to enter to the most clear position of image and to target shooting area first with control software
, to obtain shooting image, now imaging area is typically minimum for row image taking.If now imaging area is in upper threshold MaxArea
In the range of bottom threshold MinArea, then stop adjusting micro- Jiao's ring；If instead imaging area is less than bottom threshold MinArea,
Then continue subsequent adjustment；
Next b) (referred to fixed step size is for example to control camera to adjust to the right such as one times specified step-length using control software
It is respective notch II naturally it is also possible to be other gears corresponding, but gear II is more suitable) and to target shooting area
Carry out image taking to obtain shooting image, afterwards shooting image is carried out with saturation analysis and display unit imaging area calculates
Etc. image analysis processing operation；If intensity value is abnormal, the imaging surface product value calculating may be larger with actual value deviation, then need
Control adjustment camera saturation parameters and again shooting image and the image re-shooting is carried out saturation analysis and
The image analysis processing operation such as display unit imaging area calculating；If intensity value is normal, judge whether imaging area meets
Demand, if imaging area is also less than bottom threshold MinArea, continues to adjust to the right, and increases the step-length multiple (example of regulation
As many in Primary regulation times of specified step-lengths, the such as corresponding step-length of 4 times of gear II of regulation)；If increase be imaged after adjusting step-length multiple
Area is more than upper threshold MaxArea, then automatically control the focusing position that micro- Jiao's ring is first adjusted to the last time by camera, then to this
The mobile small step in secondary focusing position direction (namely to the right) (for example only move one times or twice gear II corresponding step-length, because
For last adjust and current adjust between gap be usually the corresponding step-length of many times of gear II) and again shooting image and
Carry out the image analysis processing operation such as image saturation analysis and imaging area calculating, if imaging area exists after a mobile small step
In the range of upper threshold MaxArea and bottom threshold MinArea, then stop adjusting micro- Jiao's ring；If increase adjusting step-length multiple
Imaging area is also less than bottom threshold MinArea afterwards, then continue to adjust to the right；
If the specified step-length sum c) adjusting to the right specifies step-length then it is assumed that being adjusted to more than or equal to predetermined number
Right-hand member (because control software cannot know whether adjusted micro- Jiao's actual low order end of ring to camera in the present embodiment, therefore
Pass through on Software for Design to judge whether the specified step-length sum adjusting to the right specifies step-length more than or equal to predetermined number, such as greatly
In the corresponding step-length of 16 times of gear II then it is assumed that being adjusted to low order end although micro- Jiao's ring of perhaps this position not camera
Actual low order end and simply close to actual low order end).If now imaging area is not met by demand,：Control software is first
Control camera auto-focusing to the most clear position of image, then adjust such as one times specified step-length to left end, if imaging area is little
In bottom threshold MinArea, then continue to adjust to the left, and increase the step-length multiple of regulation；After increasing regulation step-length multiple, if
Imaging area is more than upper threshold MaxArea, then control software automatically controls the focusing that micro- Jiao's ring is first adjusted to the last time by camera
Position, then to current focusing position direction (namely to the left) mobile small step, if imaging area exists after a mobile small step
In the range of upper threshold MaxArea and bottom threshold MinArea, then stop adjusting micro- Jiao's ring；Conversely, adjusting step-length times increasing
After number, if imaging area is still less than bottom threshold MinArea, continue regulation of turning left.
Fig. 1 be using control software first control camera auto-focusing to the most clear position of image more to the right adjust and when to
Right adjust the process schematic being then changed to when still cannot meet demand to low order end imaging area adjust to the left, wherein curve represents
Imaging area size, arrow 1 and arrow 2 represent and adjust order.It is noted that the camera that automatically controls of the present embodiment is carried out
The flow process that micro- Jiao's ring is adjusted can also first be adjusted to the left and imaging area size is still unsatisfactory for needing after judging to reach high order end
Adjust to the right again when asking.If further it will be understood that all cannot in micro- Jiao's ring adjustable range of low order end to high order end
Obtain suitable imaging area size, then automatic control and adjustment failure, produce information and notify user.
In brief, first embodiment of the invention be with camera auto-focusing to the most clear position of image as basic point, control
Camera camera micro- Jiao ring adjustable extent in the first direction (for example to the right) traversal and/or in a second direction (for example to
Left) traversal focusing position meets demand (namely imaging area is located at bottom threshold to find out display unit imaging area size
MinArea and upper threshold MaxArea definition threshold range in) focusing position；In other words with camera auto-focusing to figure
As the most clear position is starting point, controls camera first to travel through focusing position in micro- Jiao's ring adjustable extent of camera in the first direction
And do not find out the focusing position that display unit imaging area size meets demand after having traveled through the focusing position on first direction yet
Postpone again with camera auto-focusing to the most clear position of image as starting point, control camera to travel through focusing position in a second direction；
And control camera in the first direction or second direction traversal focusing position during every secondary control camera adjustments micro- Jiao ring
Step-length multiple be not limited to aforementioned citing, it can also be for example to be one times of step-length every time.Further it will be understood that
Camera first auto-focusing to the most clear position of image can be to be completed by sending instructions under control software to camera or
Trigger camera auto-focusing button manually to complete.
【Second embodiment】
Second embodiment of the invention control software does not control camera to carry out auto-focusing to the most clear position, because sometimes
The auto-focusing of camera may fail.The upper threshold that imaging area size is previously set is MaxArea and bottom threshold
For MinArea, then automatically control camera and carry out the flow process that micro- Jiao's ring adjusts and will be described as follows in conjunction with Fig. 3 and Fig. 4：
1) camera is controlled to carry out image taking to obtain shooting image to target shooting area first with control software, it
Afterwards shooting image is carried out with the image analysis processing operation such as saturation analysis and the calculating of display unit imaging area；If intensity value
Abnormal, the imaging surface product value calculating may be larger with actual value deviation, then need the saturation parameters of control adjustment camera simultaneously
Re-shoot image and the image re-shooting is carried out with saturation analysis and display unit imaging area the image such as calculate dividing
Analysis processes operation；If intensity value is normal, judge whether imaging area meets demand, if now imaging area is in upper threshold
In the range of MaxArea and bottom threshold MinArea, it represents that imaging area meets demand, then stop adjusting micro- Jiao's ring；Otherwise such as
Fruit imaging area outside upper threshold MaxArea and bottom threshold MinArea scope, then controls camera adjustments micro- Jiao ring；
2) next camera is controlled to adjust to the right such as one times specified step-length and to target shooting area using control software
Carry out image taking to obtain shooting image, afterwards shooting image is carried out with saturation analysis and display unit imaging area calculates
Operate and export intensity value and imaging surface product value etc. image analysis processing；If intensity value is normal and imaging area still less than
Bottom threshold MinArea, then continue to adjust to the right, and increases the step-length multiple of regulation, carries out saturation degree to shooting image afterwards
Analysis and display unit imaging area calculate and export intensity value and imaging surface product value；If last imaging area is less than threshold
Value lower limit MinArea but current imaging area is more than upper threshold MaxArea, then automatically control camera and micro- Jiao's ring be first adjusted to
Focusing position once, then to current focusing position direction (namely to the right) mobile small step and again shooting image and
The image re-shooting is carried out with the image analysis processing operation such as saturation analysis and imaging area calculating, if now imaging surface
Amass in the range of upper threshold MaxArea and bottom threshold MinArea, then stop adjusting micro- Jiao's ring；If imaging area is still
More than upper threshold MaxArea, then it is adjusted toward the less direction of imaging area, and if imaging area is unanimously similar
Greatly, then the regulation direction before continuing is adjusted
3) if the specified step-length sum subsequently adjusting to the right specifies step-length more than or equal to predetermined number, judge to have adjusted
To low order end；If now imaging area is not met by demand, should start to adjust toward high order end, be then specifically first directly to control phase
Micro- Jiao's ring is adjusted to high order end by machine, and shooting image simultaneously analyzes saturation degree and imaging area, if imaging area is normal in saturation degree
When be unsatisfactory for demand and be greater than upper threshold MaxArea, then adjust such as one times specified step-length to right-hand member, if imaging area is also
More than upper threshold MaxArea, then continue to adjust to the right, and increase the step-length multiple of regulation；As above Polaroid area is more than
Upper threshold MaxArea, but after increasing regulation step-length multiple, imaging area is less than bottom threshold MinArea, then by focusing ring first
It is adjusted to the focusing position of last time, then to current focusing position direction (namely to the right) mobile small step, if mobile one
After small step, imaging area in the range of upper threshold MaxArea and bottom threshold MinArea, then stops adjusting；Adjust increasing
After step-length multiple, if imaging area is still above upper threshold MaxArea, continue to adjust to the right.
Fig. 3 is first to control camera to adjust to the right using control software and ought adjust to the right to low order end imaging area still no
Method meets during demand and then first directly to adjust the process schematic adjusting to the right again to high order end, and wherein to represent imaging area big for curve
Little, arrow 1, arrow 2 and arrow 3 represent and adjust order.It is noted that the camera that automatically controls of the present embodiment carries out micro- Jiao
When the flow process that ring is adjusted can also first be adjusted to the left and imaging area size is still unsatisfactory for demand after judging to reach high order end
Then first directly adjust and adjust to the left again to low order end.
In brief, second embodiment of the invention is with the current focusing position of camera as starting point, controls camera in camera
First travel through focusing position in micro- Jiao's ring adjustable extent in the first direction and work as the focusing position having traveled through on first direction not yet
Find out and after display unit imaging area size meets the focusing position of demand, control camera directly to adjust micro- Jiao's ring in a second direction
Save to extreme focusing position (extreme focusing position herein is judged by control software, its can be camera micro- Jiao the actual pole of ring
End focusing position such as high order end position or low order end position is it is also possible to focusing position close to actual extreme focusing position), again
Focusing position is traveled through in the first direction for starting point with this extreme focusing position；And traveling through the mistake of focusing position in the first direction
In journey, the step-length multiple of every secondary control camera adjustments micro- Jiao ring is not limited to aforementioned citing, and it can also be for example to be one every time
Times step-length.
Finally, the embodiment of the present invention also proposes a kind of LED bright chroma bearing calibration, including step：Camera be aligned LED is shown
The target shooting area as region to be corrected of showing device；Execution aforementioned any one automatically adjust imaging surface amass size side
Method flow process；And after the focusing position when the imaging area finding out corresponding single display unit is located in preset threshold range,
Camera is controlled target shooting area to be carried out with image taking to obtain shooting image as bright chroma correction image.
In sum, present invention automatically controls imaging area by software, thus facilitating user to carry out
Correction, furthermore achieved that the automation of correcting process.
The above, be only presently preferred embodiments of the present invention, not the present invention is made with any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any is familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above make a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being without departing from technical solution of the present invention content, according to the technical spirit pair of the present invention
Any simple modification, equivalent variations and modification that above example is made, all still fall within the range of technical solution of the present invention.
Claims (10)
1. a kind of imaging surface that automatically adjusts amasss the method for size it is characterised in that including step：
I () controls camera target shooting area to be carried out with image taking to obtain the first shooting image, wherein said target shooting
Region includes multiple display units；
(ii) described first shooting image is carried out with the first imaging area that image analysis processing operation exports described display unit
And judge whether described first imaging area is located in preset threshold range；And
(iii) if described first imaging area exceeds described preset threshold range, the described camera of control with current focusing position is
Starting point travels through focusing position in micro- Jiao's ring adjustable extent of described camera in the first direction, for finding out follow-up shooting figure
As the focusing position when imaging area of corresponding described display unit is located in described preset threshold range；Wherein, step (iii)
Including step：
(iii-a) after the described camera of every control adjusts once described micro- Jiao's ring along described first direction, control described camera pair
Described target shooting area carries out image taking to obtain the second shooting image, to carry out graphical analysis to described second shooting image
Process operation to export the second imaging area of described display unit and to judge described second imaging area whether positioned at described pre-
If in threshold range.
2. automatically adjust imaging surface as claimed in claim 1 and amass the method for size it is characterised in that step (iii-a) includes
Step：
Described camera is controlled to specify step-length to adjust once described micro- Jiao's ring along described first direction with the first multiple；And
After described camera specifies step-length to adjust once described micro- Jiao's ring along described first direction with described first multiple, if described
Second imaging area is less than the bottom threshold of described preset threshold range, controls described camera to specify step-length along institute with the second multiple
State first direction and adjust once described micro- Jiao's ring；Wherein said second multiple is more than described first multiple.
3. automatically adjust imaging surface as claimed in claim 2 and amass the method for size it is characterised in that step (iii-a) is also wrapped
Include step：
After described camera specifies step-length to adjust once described micro- Jiao's ring along described first direction with described second multiple, if described
Second imaging area is more than the upper threshold of described preset threshold range, controls described camera first described micro- Jiao's loopback to be adjusted to institute
State camera with described second multiple specify step-length along described first direction adjust the state before described micro- Jiao's ring, control again described
Camera specifies step-length to adjust once described micro- Jiao's ring along described first direction with triple；Wherein said triple is less than institute
State the second multiple.
4. automatically adjust imaging surface as claimed in claim 1 and amass the method for size it is characterised in that step (iii) also includes
Step：
(iii-b) if controlling described camera to travel through the one-tenth not finding out described display unit after focusing position along described first direction
Focusing position when image planes are amassed in described preset threshold range, controls described camera auto-focusing to the most clear position of image
And traveled through in a second direction in described micro- Jiao's ring adjustable extent of described camera with the most clear position of described image for starting point
Focusing position；Wherein said second direction is opposite to the first direction.
5. automatically adjust imaging surface as claimed in claim 1 and amass the method for size it is characterised in that step (iii) also includes
Step：
(iii-b) if controlling described camera to travel through the one-tenth not finding out described display unit after focusing position along described first direction
Focusing position when image planes are amassed in described preset threshold range, controls described camera by described micro- Jiao's ring directly along second party
To the extreme focusing position of described micro- Jiao's ring and described micro- in described camera for starting point with described extreme focusing position to regulation
Focusing position is traveled through along described first direction again in burnt ring adjustable extent；Wherein said second direction and described first direction
On the contrary.
6. automatically adjust imaging surface as claimed in claim 1 and amass the method for size it is characterised in that going back before step (i)
Including step：
Control described camera auto-focusing to the most clear position of image.
7. automatically adjust imaging surface as claimed in claim 1 and amass the method for size it is characterised in that image in step (ii)
Analyzing and processing operation includes saturation analysis, and correspondingly described first imaging area is to carry out obtained from described saturation analysis
Intensity value is imaging area under normal circumstances.
8. a kind of imaging surface that automatically adjusts amasss the method for size it is characterised in that including step：
With camera auto-focusing to the most clear position of image as starting point, described camera is controlled to can adjust in micro- Jiao's ring of described camera
In the range of travel through focusing position in the first direction, for finding out the single display list in the corresponding target shooting area of shooting image
The focusing position when imaging area of unit is located in preset threshold range；And
If controlling described camera to travel through the one-tenth not finding out corresponding described display unit after focusing position along described first direction
Focusing position when image planes are amassed in described preset threshold range, auto-focusing is the most clear to image again to control described camera
Position and with the most clear position of described image for starting point described camera described micro- Jiao ring adjustable extent in a second direction
Traversal focusing position；Wherein said second direction is opposite to the first direction.
9. a kind of imaging surface that automatically adjusts amasss the method for size it is characterised in that including step：
With the current focusing position of camera as starting point, control described camera along first in micro- Jiao's ring adjustable extent of described camera
Direction travels through focusing position, for finding out the imaging area of the single display unit in the corresponding target shooting area of shooting image
Focusing position when in preset threshold range；And
If controlling described camera to travel through the one-tenth not finding out corresponding described display unit after focusing position along described first direction
Focusing position when image planes are amassed in described preset threshold range, controls described camera by described micro- Jiao's ring directly along second party
To the extreme focusing position of described micro- Jiao's ring and described micro- in described camera for starting point with described extreme focusing position to regulation
Focusing position is traveled through along described first direction again in burnt ring adjustable extent；Wherein said second direction and described first direction
On the contrary.
10. a kind of LED bright chroma bearing calibration is it is characterised in that include step：
Camera is directed at the target shooting area as region to be corrected of LED display；
Execution automatically adjusts the method that imaging surface amasss size as described in claim 1 to 9 any one；And
After focusing position when the imaging area finding out corresponding single display unit is located in described preset threshold range, control
Described camera carries out image taking to obtain shooting image as bright chroma correction image to described target shooting area.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653835A (en) * | 2020-12-14 | 2021-04-13 | 浙江大华技术股份有限公司 | Method and device for judging focusing state and storage medium |
| CN114584700A (en) * | 2020-11-30 | 2022-06-03 | 京东方科技集团股份有限公司 | Focusing marking method, marking device and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426403A (en) * | 2013-08-16 | 2013-12-04 | 西安诺瓦电子科技有限公司 | Image acquisition method for calibration, picture display method and calibration method for LED display screen |
| CN104486534A (en) * | 2014-12-16 | 2015-04-01 | 西安诺瓦电子科技有限公司 | Moire detecting and suppression method and device |
| US20150130867A1 (en) * | 2013-11-06 | 2015-05-14 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling power |
| CN104639894A (en) * | 2014-12-11 | 2015-05-20 | 北京中星微电子有限公司 | Image focusing method and device for surveillance camera |
| CN104660913A (en) * | 2015-03-18 | 2015-05-27 | 努比亚技术有限公司 | Focus length adjusting method and device |
| CN105654898A (en) * | 2016-02-25 | 2016-06-08 | 西安诺瓦电子科技有限公司 | Image acquisition device imaging moire inhibition method and application thereof |
-
2016
- 2016-11-16 CN CN201611009395.7A patent/CN106448546B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426403A (en) * | 2013-08-16 | 2013-12-04 | 西安诺瓦电子科技有限公司 | Image acquisition method for calibration, picture display method and calibration method for LED display screen |
| US20150130867A1 (en) * | 2013-11-06 | 2015-05-14 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling power |
| CN104639894A (en) * | 2014-12-11 | 2015-05-20 | 北京中星微电子有限公司 | Image focusing method and device for surveillance camera |
| CN104486534A (en) * | 2014-12-16 | 2015-04-01 | 西安诺瓦电子科技有限公司 | Moire detecting and suppression method and device |
| CN104660913A (en) * | 2015-03-18 | 2015-05-27 | 努比亚技术有限公司 | Focus length adjusting method and device |
| CN105654898A (en) * | 2016-02-25 | 2016-06-08 | 西安诺瓦电子科技有限公司 | Image acquisition device imaging moire inhibition method and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114584700A (en) * | 2020-11-30 | 2022-06-03 | 京东方科技集团股份有限公司 | Focusing marking method, marking device and electronic equipment |
| CN114584700B (en) * | 2020-11-30 | 2024-04-05 | 京东方科技集团股份有限公司 | Focusing marking method, marking device and electronic equipment |
| CN112653835A (en) * | 2020-12-14 | 2021-04-13 | 浙江大华技术股份有限公司 | Method and device for judging focusing state and storage medium |
| CN112653835B (en) * | 2020-12-14 | 2022-02-08 | 浙江大华技术股份有限公司 | Method and device for judging focusing state and storage medium |
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