CN110277043A - The assistant images splicing system and method for optical characteristics detection based on more microscope groups - Google Patents
The assistant images splicing system and method for optical characteristics detection based on more microscope groups Download PDFInfo
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- CN110277043A CN110277043A CN201910583784.8A CN201910583784A CN110277043A CN 110277043 A CN110277043 A CN 110277043A CN 201910583784 A CN201910583784 A CN 201910583784A CN 110277043 A CN110277043 A CN 110277043A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003384 imaging method Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001621 AMOLED Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical group [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
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- Microscoopes, Condenser (AREA)
Abstract
The assistant images splicing system and method for the optical characteristics detection based on more microscope groups that the invention discloses a kind of, the system includes for detecting the fixed platform of display screen, fluorescence detector, stationary fixture and secondary graphics mark, the top of fixed platform is arranged in the fluorescence detector, the stationary fixture installation corresponds to the position at display screen surrounding midpoint on the stationary platform, and the surface of the stationary fixture is arranged in the secondary graphics mark.The system substitutes single high-resolution CCD camera mode by the image mosaic mode that multiple CCD microscope groups, specific secondary graphics identify, realizing reduces equipment cost, reach same effect in display screen optical detection simultaneously, can also shorten the operation time of image procossing.
Description
Technical field
The invention belongs to display screen optical detection apparatus fields, and in particular to a kind of optical characteristics detection based on more microscope groups
Assistant images splicing system and method.
Background technique
Machine vision technique based on CCD microscope group is widely used in display screen detection, not only realizes the son to display screen
The measurement of the parameters such as overall size, shape, the defect of pixel and feature, and it is achievable to display screen entirety coloration, brightness
Etc. optical characteristics detection, have advantage efficient, reliable, non-contact, easy to automate.
The imaging type display screen optical characteristics tester of mainstream at present, mainly by a CCD camera to display screen not
With under color coloration, brightness into Polaroid formula whole measurement analysis, while detect on display screen such as bright spot, dim spot and
The defects of light leakage.Such product needs the technical grade ccd sensor of high-resolution, high quality imaging.But with OLED technology
Progress is promoted, and the more full AMOLED display screen of high-resolution, color becomes the middle and high end consumer electronics market mainstream, simultaneously
Flexible display screen also yields unusually brilliant results in high-end electronic product market, and the optical characteristics detection of such product also causes optical detection
The resolution ratio of core cell CCD camera, accuracy requirement are promoted at double in instrument, and also when the river rises the boat goes up for equipment manufacturing cost.At the same time, former
Beginning image by resolution ratio promotion and the increase that takes up space, image processing speed also delay much.
The image mosaic technology of more microscope groups has not been used in the optical characteristics detection of display screen, and main application scenarios are complete
The shooting of scape photo.This technology has in the optical characteristics detection of display screen and needs to solve compared with hang-up, i.e., sub- picture inside display screen
Element arrangement be array uniformly arrange, when multiple cameras shooting local pictures when being spliced, can not recognisable image side
Position in edge and general image, so that splicing calculating is easy to appear a large amount of laps, simultaneously because interior pixels image is more,
The Computing time is long and error rate is high.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes a kind of assistant images splicing system of optical characteristics detection based on more microscope groups
And method.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the invention is realized by the following technical scheme:
A kind of assistant images splicing system of the optical characteristics detection based on more microscope groups is flat including the fixation for detecting display screen
The top of fixed platform, institute is arranged in platform, fluorescence detector, stationary fixture and secondary graphics mark, the fluorescence detector
The stationary fixture installation stated corresponds to the position at display screen surrounding midpoint on the stationary platform, and the secondary graphics mark is set
It sets on the surface of the stationary fixture.
As a further improvement of the present invention, the fluorescence detector includes 4 CCD microscope groups, multiplies 2 rectangular arrays by 2
Mode be fixed on above fixed platform.
As a further improvement of the present invention, the secondary graphics are identified as T-shaped metal plate, and surface is silver
White.
As a further improvement of the present invention, secondary graphics mark is bolted on metal surface.
As a further improvement of the present invention, the stationary fixture is connected to the motor, and drives it in horizontal, vertical direction
Movement.
The method for realizing splicing using image mosaic system of the invention, comprising the following steps:
S1: the CCD microscope group of array arrangement shoots display screen, subgraph captured by the CCD microscope group described in each
In include the mark of secondary graphics described in two；
S2: identifying the Main Boundaries line in subgraph, extracts the boundary of secondary graphics mark as characteristic point；
S3: according in several subgraphs identical feature carry out image registration, calculate repeat region, be spliced into one it is to be measured
The complete image of display screen；
S4: judging whether image mosaic is completed according to the imaging results on the display screen boundary of repeat region and internal sub-pixel, if
It is no, the position of each CCD microscope group is finely tuned, splicing is re-shoot, until meeting condition completes splicing.
As a further improvement of the present invention, the area of subgraph captured by each described CCD microscope group is greater than to be measured
The 1/4 of display area further includes the mark of secondary graphics described in two, and the area of the secondary graphics mark is not less than auxiliary
Help the 3/4 of graphics area.
Beneficial effects of the present invention: the image mosaic mode that the present invention is identified by multiple CCD microscope groups, specific secondary graphics
Single high-resolution CCD camera mode is substituted, not only reduces equipment cost, while reaching phase in display screen optical detection
Same effect, but also the operation time of image procossing can be shortened.
Detailed description of the invention
Fig. 1 is the flow chart that image mosaic is carried out using the device of the invention；
Fig. 2 is the structure chart for the assistant images splicing system that one embodiment of the invention provides；
The figure to be spliced of two rows of four CCD microscope groups shootings in the optical detector that Fig. 3 provides for one embodiment of the invention, wherein a
Figure is upper left corner CCD shooting image 1, and b figure is upper right corner CCD shooting image 2, and c figure is lower left corner CCD shooting image 3, and d figure is
Lower right corner CCD shoots image 4；
Wherein: 1- fixed platform, 2- display screen to be measured, 3- stationary fixture, 4(4.1,4.2,4.3,4.4)-secondary graphics mark.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
A kind of assistant images splicing system of the optical characteristics detection based on more microscope groups as shown in the figure, including it is aobvious for detecting
Fixed platform 1, fluorescence detector, stationary fixture 3 and the secondary graphics mark 4 of display screen.Wherein the fluorescence detector includes 4
A CCD microscope group is fixed on the top of fixed platform 1 in such a way that 2 multiply 2 rectangular arrays, respectively to display screen 2 to be measured it is upper and lower,
Left and right four orientation shoot topography.
The stationary fixture 3 is mounted on the position for corresponding to display screen surrounding midpoint in fixed platform 1, is divided into and being located at
The upper and lower, left and right four direction of fixed platform 1, stationary fixture 3 realize the fortune in horizontal and vertical direction by motor driven
It is dynamic, complete clamping, fixation to display screen to be detected.
The secondary graphics mark 4 is T-shaped metal plate, is fixed on the stationary fixture 3 using two bolts
On, surface is silvery white in color using hard alloy anodic oxidation, facilitates the Boundary Extraction color of secondary graphics mark in CCD shooting.
CCD microscope group in apparatus of the present invention is shot to the display screen for having fixed good position, and each CCD camera is clapped
The subgraph taken the photograph is inconsistent, but has repeat region.The subgraph of this 4 CCD microscope groups shooting need to be complete by the content of entire display screen
Portion's shooting is complete.
The repeat region that should be noted that the different CCD cameras shooting image has when shooting refers to each CCD
The photo that microscope group is clapped need to be greater than the 1/4 of display screen, while secondary graphics need to be identified shooting and enter picture.Captured secondary graphics
The area of mark need to account for the major part of secondary graphics, at least 3/4 or more.
As shown in Figure 1, carrying out image mosaic using system designed in the present invention, comprising the following steps:
The shooting of S1(single image): the CCD microscope group of array arrangement shoots display screen, the CCD microscope group described in each
Include the mark of secondary graphics described in two 4 in captured subgraph；
S2(image preprocessing): it identifies the Main Boundaries line in subgraph, extracts the boundary of secondary graphics mark as feature
Point；
S3(image mosaic): image registration is carried out according to the identical feature in several subgraphs, calculates repeat region, is spliced
At a complete image of display screen 2 to be measured；
The judgement of S4(image mosaic result): figure is judged according to the imaging results on the display screen boundary of repeat region and internal sub-pixel
Whether completed as splicing, if it is not, finely tuning the position of each CCD microscope group, re-shoot splicing, until meeting condition completes splicing.
Specific implementation process as shown in figure 3, the boundary of large scale figure is calculated in subgraph 1 by image recognition,
Secondary graphics mark a4.1 is matched as the common trait of subgraph 1 and subgraph 2 point, calculates the repetition of two images
Region, sub-image 2 are copied to the specific position of subgraph 1, form the new image of a width, and the information in this image is completely wrapped
The all information of image 1 and image 2 is contained, with the splicing of this step by step calculation, to form the complete display screen test image of a width.
It is subsequent to be analyzed again by the repeat region between subgraph, it examines stitching image whether to meet subsequent optical performance test and wants
It asks.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of assistant images splicing system of the optical characteristics detection based on more microscope groups, it is characterised in that: including for detecting
Fixed platform (1), fluorescence detector, stationary fixture (3) and the secondary graphics mark (4) of display screen, the fluorescence detector
Top in fixed platform (1) is set, and the stationary fixture (3), which is mounted on fixed platform (1), corresponds to display screen surrounding
The position at side midpoint, surface of secondary graphics mark (4) setting in the stationary fixture (3).
2. a kind of assistant images splicing system of optical characteristics detection based on more microscope groups according to claim 1, special
Sign is: the fluorescence detector includes 4 CCD microscope groups, is fixed on fixed platform (1) in such a way that 2 multiply 2 rectangular arrays
Side.
3. a kind of assistant images splicing system of optical characteristics detection based on more microscope groups according to claim 1, special
Sign is: the secondary graphics mark (4) is T-shaped metal plate, and surface is silvery white.
4. a kind of assistant images splicing system of optical characteristics detection based on more microscope groups according to claim 3, special
Sign is: the secondary graphics mark (4) is bolted on metal surface.
5. a kind of assistant images splicing system of optical characteristics detection based on more microscope groups according to claim 1, special
Sign is: the stationary fixture (3) is connected to the motor, and drives it in horizontal, vertical direction movement.
6. a kind of described in any item assistant images splicing systems of the optical characteristics detection based on more microscope groups of application claim 1-5
The method that system realizes splicing, which comprises the following steps:
S1: the CCD microscope group of array arrangement shoots display screen, subgraph captured by the CCD microscope group described in each
In include the mark of secondary graphics described in two (4)；
S2: identifying the Main Boundaries line in subgraph, extracts the boundary of secondary graphics mark as characteristic point；
S3: according in several subgraphs identical feature carry out image registration, calculate repeat region, be spliced into one it is to be measured
Display screen (2) complete image；
S4: judging whether image mosaic is completed according to the imaging results on the display screen boundary of repeat region and internal sub-pixel, if
It is no, the position of each CCD microscope group is finely tuned, splicing is re-shoot, until meeting condition completes splicing.
7. according to the method described in claim 6, it is characterized by: the face of subgraph captured by each described CCD microscope group
Product is greater than the 1/4 of display screen to be measured (2) area, further includes the mark of secondary graphics described in two (4), the secondary graphics mark
The area of knowledge (4) is not less than the 3/4 of secondary graphics area (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910583784.8A CN110277043A (en) | 2019-07-01 | 2019-07-01 | The assistant images splicing system and method for optical characteristics detection based on more microscope groups |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910583784.8A CN110277043A (en) | 2019-07-01 | 2019-07-01 | The assistant images splicing system and method for optical characteristics detection based on more microscope groups |
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|---|---|---|---|---|
| CN1393721A (en) * | 2001-02-19 | 2003-01-29 | 精工爱普生株式会社 | Method and system for regulating position of optical system and optical modulator |
| CN101192361A (en) * | 2006-11-21 | 2008-06-04 | 胜华科技股份有限公司 | High-positioning-precision image detection device and method applied to flat display panel |
| WO2010034138A1 (en) * | 2008-09-28 | 2010-04-01 | 深圳市奥拓电子有限公司 | Method and system for monitoring led display screen operation |
| CN103620482A (en) * | 2011-06-24 | 2014-03-05 | 夏普株式会社 | Defect inspection device and defect inspection method |
| CN103902953A (en) * | 2012-12-25 | 2014-07-02 | 深圳先进技术研究院 | Screen detection system and method |
| CN104702813A (en) * | 2015-02-11 | 2015-06-10 | 杭州载力科技有限公司 | Multi-CCD spliced scanning mechanism and image processing method through same |
| US20170155897A1 (en) * | 2015-06-12 | 2017-06-01 | Boe Technology Group Co., Ltd. | Testing method and testing apparatus for splicing screens |
| CN210349258U (en) * | 2019-07-01 | 2020-04-17 | 浙江大学昆山创新中心 | Auxiliary image splicing system based on optical characteristic detection of multiple lens groups |
-
2019
- 2019-07-01 CN CN201910583784.8A patent/CN110277043A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1393721A (en) * | 2001-02-19 | 2003-01-29 | 精工爱普生株式会社 | Method and system for regulating position of optical system and optical modulator |
| CN101192361A (en) * | 2006-11-21 | 2008-06-04 | 胜华科技股份有限公司 | High-positioning-precision image detection device and method applied to flat display panel |
| WO2010034138A1 (en) * | 2008-09-28 | 2010-04-01 | 深圳市奥拓电子有限公司 | Method and system for monitoring led display screen operation |
| CN103620482A (en) * | 2011-06-24 | 2014-03-05 | 夏普株式会社 | Defect inspection device and defect inspection method |
| CN103902953A (en) * | 2012-12-25 | 2014-07-02 | 深圳先进技术研究院 | Screen detection system and method |
| CN104702813A (en) * | 2015-02-11 | 2015-06-10 | 杭州载力科技有限公司 | Multi-CCD spliced scanning mechanism and image processing method through same |
| US20170155897A1 (en) * | 2015-06-12 | 2017-06-01 | Boe Technology Group Co., Ltd. | Testing method and testing apparatus for splicing screens |
| CN210349258U (en) * | 2019-07-01 | 2020-04-17 | 浙江大学昆山创新中心 | Auxiliary image splicing system based on optical characteristic detection of multiple lens groups |
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