CN107169921A - The figure registration system and method for a kind of pair of spectrum - Google Patents
The figure registration system and method for a kind of pair of spectrum Download PDFInfo
- Publication number
- CN107169921A CN107169921A CN201710281284.XA CN201710281284A CN107169921A CN 107169921 A CN107169921 A CN 107169921A CN 201710281284 A CN201710281284 A CN 201710281284A CN 107169921 A CN107169921 A CN 107169921A
- Authority
- CN
- China
- Prior art keywords
- image
- registering
- camera
- registration
- translational movement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001228 spectrum Methods 0.000 title claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000013519 translation Methods 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/14—Transformations for image registration, e.g. adjusting or mapping for alignment of images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
- G06T7/33—Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
- G06T7/337—Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods involving reference images or patches
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The present invention relates to the figure registration system of a kind of pair of spectrum and method, the system includes dual-band image securing component, scaling board, fluorescent lamp and host computer, described dual-band image securing component includes two first cameras and second camera for being used to obtain different-waveband image, described first camera and second camera optical axis is parallel to each other, described first camera and second camera is all connected with host computer, described scaling board is provided with least four positioning hole, and 4 positioning hole lines surround rectangular configuration, carry out with punctual, fluorescent lamp is placed in positioning hole rear, described first camera and second camera gather the image of corresponding wave band and sent to host computer respectively, described host computer calculates registration parameter according to the image of collection.Compared with prior art, method for registering of the present invention is simple and easy to apply, registration result accurately and reliably.
Description
Technical field
The present invention relates to image processing field, more particularly, to the image registration device and method of a kind of pair of spectrum.
Background technology
Image registration refers to the point corresponding with another piece image of the point in piece image setting up certain mapping relations
So as to complete the process of certain spatial variations.Current image registration is divided into calculating translation or calculates single two kinds of sides of mapping matrix
Formula, calculates translation mode result simple, it is impossible to handle situation about being rotated between image, calculates single mapping matrix mode operand
Greatly, the requirement and to Image Feature Matching result is higher, it is necessary to can just draw correct result during the higher accuracy rate of matching result.
At present, be directed to both at home and abroad multi-band image fusion research focus primarily upon LONG WAVE INFRARED-medium-wave infrared, it is red
The fields such as outside-visible ray, ultraviolet-visible light, the system detected both at home and abroad using infrared and UV signal to shelf depreciation
The detection of the two independent aspects of ultraviolet imagery and infrared detection is only realized, matching somebody with somebody for ultraviolet-infrared pair of spectrum picture is realized
Standard, can provide strong technical support for current ultraviolet-infrared pair of spectral detection field.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide the image of a kind of pair of spectrum
Registration apparatus and method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of figure registration system of pair of spectrum, the system include dual-band image securing component, scaling board, fluorescent lamp and
Host computer, described dual-band image securing component includes two first cameras and the second phase for being used to obtain different-waveband image
Machine, described first camera and second camera optical axis is parallel to each other, and described first camera and second camera is all connected with host computer,
Described scaling board is provided with least four positioning hole, and 4 positioning hole lines surround rectangular configuration, carries out with punctual, fluorescent lamp
Positioning hole rear is placed in, described first camera and second camera gather the image of corresponding wave band and sent to host computer respectively,
Described host computer calculates registration parameter according to collection image.
Described scaling board is square white calibration plate.
80 positioning holes are distributed with described positioning hole and 80 positioning hole arrangement modes are as follows：Square scaling board water
Flat axis, vertical central axis line and two diagonal are respectively uniformly distributed 20 positioning holes.
Described definition is that hole is circular hole, and aperture is 5mm.
The registration parameter includes registering translational movement and registering pantograph ratio.
A kind of method that figure registration system using above-mentioned pair of spectrum carries out image registration, this method includes following step
Suddenly：
(1) fluorescent lamp is respectively placed in 80 positioning hole rears, and 80 is obtained respectively by first camera and second camera
To locator image, include the first image and the second image in every a pair of locators image；
(2) a pre- registering translational movement is asked for according to every a pair of locators image respectively；
(3) that asks for 80 pre- registering translational movements is worth to registering translational movement；
(4) 4 positioning holes and 4 positioning hole line formation rectangular configurations are chosen from positioning, this 4 positioning are obtained respectively
4 pairs of registering image progress are handled and obtain registering pantograph ratio by corresponding 4 pairs of locator images in hole.
Step (2) is specially：It will wait that a pair of locator images for asking for pre- registering translational movement are placed in the same coordinate system,
And first image and the second image border overlap, obtain the center point coordinate of imaging hot spot in the first image and the second image
P1 (x1, x2), P2 (x2, y2), then pre- registering translational movement is { (x2-x1), (y2-y1) }, wherein (x2-x1) is the pre- registration of level
Translational movement, (y2-y1) is vertical pre- registering translational movement, and then step (3) is to the pre- registering translational movement of 80 levels and vertical prewired
Quasi- translational movement is corresponded to respectively to be asked for being worth to horizontal registration translational movement and the pre- registering translational movement that hangs down.
Step (4) is specially：The first image and the second image in 4 pairs of locator images is overlapped obtains respectively
The registering image of the first scaling and the registering image of the second scaling containing 4 hot spots, by the registering image of the first scaling and the second scaling
4 hot spots in registering image carry out line the first rectangle of formation and the second rectangle respectively, ask for the first rectangular area for S1, the
Two rectangular areas are S2, then registering pantograph ratio is S1/S2.
Step (4) repeats repeatedly and is averaged obtained registering pantograph ratio to obtain final registering pantograph ratio.
Compared with prior art, the invention has the advantages that：
(1) registration arrangement of the present invention and method are simple and easy to apply, and the acquisition of registration parameter can be carried out easily and fast, convenient
Successive image registration；
(2) present invention sets mark location-plate simple, it is easy to make, cost is low；
(3) present invention when carrying out registration parameter acquisition by the way of multiple calculating is averaged so that measurement result is more
Plus it is true and reliable, improve registration effect.
Brief description of the drawings
Fig. 1 is the structural representation of figure registration system of the present invention；
Fig. 2 is the structural representation of scaling board；
Fig. 3 is the FB(flow block) of method for registering images of the present invention.
In figure, 1 is first camera, and 2 be second camera, and 3 be scaling board, and 4 be host computer.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, the figure registration system of a kind of pair of spectrum, the system includes dual-band image securing component, demarcation
Plate 3, fluorescent lamp and host computer 4, dual-band image securing component include two first cameras 1 for being used to obtain different-waveband image
With second camera 2, first camera 1 and the optical axis of second camera 2 are parallel to each other, and first camera 1 and second camera 2 are all connected with host computer
4, scaling board 3 is provided with least four positioning hole, and 4 positioning hole lines surround rectangular configuration, carries out with time, fluorescent lamp is put
In positioning hole rear, first camera 1 and second camera 2 gather the image of corresponding wave band and sent to host computer 4, host computer respectively
4 calculate registration parameter according to the image of collection.
Scaling board 3 is square white calibration plate.80 positioning holes and 80 positioning hole arrangement sides are distributed with positioning hole
Formula is as follows：Square scaling board horizontal median axis, vertical central axis line and two diagonal are respectively uniformly distributed 20 positioning holes.It is fixed
Justice is that hole is circular hole, and aperture is 5mm.As shown in Fig. 2 with square scaling board horizontal median axis, vertical central axis line and two pairs
Linea angulata is respectively uniformly distributed the distribution form of the positioning hole given exemplified by 6 positioning holes in scaling board 3.
The registration parameter includes registering translational movement and registering pantograph ratio.
As shown in figure 3, a kind of method that figure registration system using above-mentioned pair of spectrum carries out image registration, this method bag
Include following steps：
(1) fluorescent lamp is respectively placed in 80 positioning hole rears, and obtained respectively by first camera 1 and second camera 2
Include the first image and the second image in 80 pairs of locator images, every a pair of locators image；
(2) a pre- registering translational movement is asked for according to every a pair of locators image respectively；
(3) that asks for 80 pre- registering translational movements is worth to registering translational movement；
(4) 4 positioning holes and 4 positioning hole line formation rectangular configurations are chosen from positioning, this 4 positioning are obtained respectively
4 pairs of registering image progress are handled and obtain registering pantograph ratio by corresponding 4 pairs of locator images in hole.
Step (2) is specially：It will wait that a pair of locator images for asking for pre- registering translational movement are placed in the same coordinate system,
And first image and the second image border overlap, obtain the center point coordinate of imaging hot spot in the first image and the second image
P1 (x1, x2), P2 (x2, y2), then pre- registering translational movement is { (x2-x1), (y2-y1) }, wherein (x2-x1) is the pre- registration of level
Translational movement, (y2-y1) is vertical pre- registering translational movement, and then step (3) is to the pre- registering translational movement of 80 levels and vertical prewired
Quasi- translational movement is corresponded to respectively to be asked for being worth to horizontal registration translational movement and the pre- registering translational movement that hangs down.
Step (4) is specially：The first image and the second image in 4 pairs of locator images is overlapped obtains respectively
The registering image of the first scaling and the registering image of the second scaling containing 4 hot spots, by the registering image of the first scaling and the second scaling
4 hot spots in registering image carry out line the first rectangle of formation and the second rectangle respectively, ask for the first rectangular area for S1, the
Two rectangular areas are S2, then registering pantograph ratio is S1/S2.
Step (4) repeats repeatedly and is averaged obtained registering pantograph ratio to obtain final registering pantograph ratio.
The present embodiment first camera 1 uses infrared camera, and second uses ultraviolet-cameras, so as to realize infrared and ultraviolet image
Registration.It is uniform in being irradiated after each positioning hole of scaling board 3 using high-power fluorescent lamp, obtain the infrared of each positioning hole and
Ultraviolet image, altogether 160 width.
Due to the position of camera used and scaling board 3, the circle of all positioning holes is in ultraviolet image in scaling board 3
Ellipse, each oval position in the picture can be represented with the coordinate of elliptical center point.Oval general equation formula is：
Ax2+Bxy+Cy2+ Dx+Ey+F=0,
In two-dimentional ultraviolet image, if oval marginal information point is n, n point is subjected to least square processing, the side of obtaining
Each coefficient in journey, then oval centre coordinate be：
Required coefficient is brought into formula to the center point coordinate that can obtain ellipse, the point coordinates and a bit in infrared visual field
Correspondence.Obtain just can calculate registering translational movement after each center point coordinate using the above method.
Claims (9)
1. the figure registration system of a kind of pair of spectrum, it is characterised in that the system includes dual-band image securing component, demarcation
Plate, fluorescent lamp and host computer, described dual-band image securing component, which includes two, to be used to obtain the first of different-waveband image
Camera and second camera, described first camera and second camera optical axis are parallel to each other, described first camera and second camera
Host computer is all connected with, described scaling board is provided with least four positioning hole, and 4 positioning hole lines surround rectangular configuration, carries out
With punctual, fluorescent lamp is placed in positioning hole rear, and described first camera and second camera gather the image of corresponding wave band simultaneously respectively
Send to host computer, described host computer calculates registration parameter according to the image of collection.
2. the figure registration system of a kind of pair of spectrum according to claim 1, it is characterised in that described scaling board is just
Square white calibration plate.
3. the figure registration system of a kind of pair of spectrum according to claim 2, it is characterised in that divide on described positioning hole
It is furnished with 80 positioning holes and 80 positioning hole arrangement modes is as follows：Square scaling board horizontal median axis, vertical central axis line and
Two diagonal are respectively uniformly distributed 20 positioning holes.
4. the figure registration system of a kind of pair of spectrum according to claim 3, it is characterised in that described definition is that hole is
Circular hole, aperture is 5mm.
5. the figure registration system of a kind of pair of spectrum according to claim 1, it is characterised in that the registration parameter includes
Registering translational movement and registering pantograph ratio.
6. a kind of method that figure registration system using double spectrum as claimed in claim 4 carries out image registration, its feature
It is, this method comprises the following steps：
(1) fluorescent lamp is respectively placed in 80 positioning hole rears, and 80 pairs is obtained respectively by first camera and second camera and determined
Include the first image and the second image in the registering image in position, every a pair of locators image；
(2) a pre- registering translational movement is asked for according to every a pair of locators image respectively；
(3) that asks for 80 pre- registering translational movements is worth to registering translational movement；
(4) 4 positioning holes and 4 positioning hole line formation rectangular configurations are chosen from positioning, this 4 positioning holes are obtained respectively
4 pairs of registering image progress are handled and obtain registering pantograph ratio by corresponding 4 pairs of locator images.
7. the method for image registration according to claim 6, it is characterised in that step (2) is specially：It will wait to ask for prewired
A pair of locator images of quasi- translational movement are placed in the same coordinate system, and the first image and the second image border overlap,
Center point coordinate P1 (x1, x2), the P2 (x2, y2) of imaging hot spot in the first image and the second image are obtained, then pre- registration translation
Measure as { (x2-x1), (y2-y1) }, wherein (x2-x1) is the pre- registering translational movement of level, (y2-y1) is vertical pre- registration translation
Measure, and then step (3) corresponds to ask for being worth to water respectively to the pre- registering translational movement of 80 levels and vertical pre- registering translational movement
Flat registration translational movement and the pre- registering translational movement that hangs down.
8. the method for image registration according to claim 6, it is characterised in that step (4) is specially：4 pairs of positioning are matched somebody with somebody
The first image and the second image in quasi- image are overlapped respectively obtains the registering image of the first scaling containing 4 hot spots and the
4 hot spots in the registering image of first scaling and the registering image of the second scaling are carried out line shape by the registering image of two scalings respectively
Into the first rectangle and the second rectangle, the first rectangular area is asked for for S1, the second rectangular area is S2, then registering pantograph ratio is S1/
S2。
9. the method for image registration according to claim 8, it is characterised in that step (4) repeats repeatedly and incited somebody to action
To registering pantograph ratio be averaged and obtain final registering pantograph ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281284.XA CN107169921B (en) | 2017-04-26 | 2017-04-26 | Double-spectrum image registration system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710281284.XA CN107169921B (en) | 2017-04-26 | 2017-04-26 | Double-spectrum image registration system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107169921A true CN107169921A (en) | 2017-09-15 |
| CN107169921B CN107169921B (en) | 2020-04-28 |
Family
ID=59813408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710281284.XA Active CN107169921B (en) | 2017-04-26 | 2017-04-26 | Double-spectrum image registration system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107169921B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680112A (en) * | 2017-10-16 | 2018-02-09 | 北京邮电大学 | Method for registering images |
| CN111311658A (en) * | 2020-04-02 | 2020-06-19 | 烟台艾睿光电科技有限公司 | Image registration method of dual-light imaging system and related device |
| CN112995528A (en) * | 2021-05-06 | 2021-06-18 | 中国工程物理研究院流体物理研究所 | Device, system and method for image registration between channels of photoelectric framing camera |
| CN113160194A (en) * | 2021-04-28 | 2021-07-23 | 贵州电网有限责任公司 | Distance self-adaptive registration method for ultraviolet and visible light images |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628693A (en) * | 2012-04-16 | 2012-08-08 | 中国航空无线电电子研究所 | Method for registering camera spindle and laser beam in parallel |
| CN103761732A (en) * | 2014-01-06 | 2014-04-30 | 哈尔滨工业大学深圳研究生院 | Three-dimensional imaging device with visible light and thermal infrared integrated and calibrating method thereof |
| CN104537631A (en) * | 2015-02-05 | 2015-04-22 | 哈尔滨工业大学 | PLIF image correction method based on digital image registration technique |
| CN104992400A (en) * | 2015-06-19 | 2015-10-21 | 北京邮电大学 | Method and device for multispectral image registration |
| CN105651384A (en) * | 2016-01-13 | 2016-06-08 | 南京大学 | Full-light information collection system |
| CN106327424A (en) * | 2016-08-30 | 2017-01-11 | 南京邮电大学 | Correction device and correction method of infrared and visible image registration parameters |
| CN106500852A (en) * | 2016-09-28 | 2017-03-15 | 北方夜视技术股份有限公司 | Infrared and visible light image registration and the System and method for for merging |
-
2017
- 2017-04-26 CN CN201710281284.XA patent/CN107169921B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628693A (en) * | 2012-04-16 | 2012-08-08 | 中国航空无线电电子研究所 | Method for registering camera spindle and laser beam in parallel |
| CN103761732A (en) * | 2014-01-06 | 2014-04-30 | 哈尔滨工业大学深圳研究生院 | Three-dimensional imaging device with visible light and thermal infrared integrated and calibrating method thereof |
| CN104537631A (en) * | 2015-02-05 | 2015-04-22 | 哈尔滨工业大学 | PLIF image correction method based on digital image registration technique |
| CN104992400A (en) * | 2015-06-19 | 2015-10-21 | 北京邮电大学 | Method and device for multispectral image registration |
| CN105651384A (en) * | 2016-01-13 | 2016-06-08 | 南京大学 | Full-light information collection system |
| CN106327424A (en) * | 2016-08-30 | 2017-01-11 | 南京邮电大学 | Correction device and correction method of infrared and visible image registration parameters |
| CN106500852A (en) * | 2016-09-28 | 2017-03-15 | 北方夜视技术股份有限公司 | Infrared and visible light image registration and the System and method for for merging |
Non-Patent Citations (4)
| Title |
|---|
| YANG F, GU Y, SUN J, ET AL.: "Research on dual spectrum solar-blind ultraviolet corona detection system", 《SELECTED PAPERS FROM CONFERENCES OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE OF THE CHINESE SOCIETY OF ASTRONAUTICS 2014, PART II》 * |
| 张海峰, 庞其昌, 李洪, 陈书汉, 李伟: "实时双光谱图像融合系统设计", 《电路与应用》 * |
| 徐鹏，陆启宇，马奥，董明，任明，李腾飞，许侃: "基于红外、超声和紫外技术的局部放电联合检测方法研究", 《红外》 * |
| 鞠洪伟，张涛，郑伟波，蔡萍，刘方武: "高压电网电晕放电实时监测系统", 《科学技术与工程》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680112A (en) * | 2017-10-16 | 2018-02-09 | 北京邮电大学 | Method for registering images |
| CN107680112B (en) * | 2017-10-16 | 2021-01-26 | 北京邮电大学 | Image registration method |
| CN111311658A (en) * | 2020-04-02 | 2020-06-19 | 烟台艾睿光电科技有限公司 | Image registration method of dual-light imaging system and related device |
| CN111311658B (en) * | 2020-04-02 | 2023-11-07 | 烟台艾睿光电科技有限公司 | Image registration method and related device for dual-light imaging system |
| CN113160194A (en) * | 2021-04-28 | 2021-07-23 | 贵州电网有限责任公司 | Distance self-adaptive registration method for ultraviolet and visible light images |
| CN113160194B (en) * | 2021-04-28 | 2023-06-16 | 贵州电网有限责任公司 | Distance self-adaptive registration method for ultraviolet and visible light images |
| CN112995528A (en) * | 2021-05-06 | 2021-06-18 | 中国工程物理研究院流体物理研究所 | Device, system and method for image registration between channels of photoelectric framing camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107169921B (en) | 2020-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107169921A (en) | The figure registration system and method for a kind of pair of spectrum | |
| KR102015606B1 (en) | Multi-line laser array three-dimensional scanning system and multi-line laser array three-dimensional scanning method | |
| US6618076B1 (en) | Method and apparatus for calibrating projector-camera system | |
| US9319667B2 (en) | Image conversion method and device using calibration reference pattern | |
| CN104272717B (en) | For performing projected image to the method and system of the alignment of infrared ray (IR) radiation information detected | |
| EP2820617B1 (en) | A method and system for projecting a visible representation of infrared radiation | |
| WO2012176945A1 (en) | Apparatus for synthesizing three-dimensional images to visualize surroundings of vehicle and method thereof | |
| CN105147311B (en) | For the visualization device sub-scanning localization method and system in CT system | |
| CN101458441A (en) | Wire pair testing drawing board, lens optical parsing and measuring system and measuring method thereof | |
| CN111220077B (en) | Visual detection device and method for installation size of threaded hole of radiator | |
| CN103852060B (en) | A kind of based on single visual visible images distance-finding method felt | |
| TWI614483B (en) | Method and system for detecting luminance of a light source | |
| CN103761732A (en) | Three-dimensional imaging device with visible light and thermal infrared integrated and calibrating method thereof | |
| CN103942796A (en) | High-precision projector and camera calibration system and method | |
| US11562478B2 (en) | Method and system for testing field of view | |
| CN106097367A (en) | The scaling method of a kind of binocular solid camera and device | |
| CN105976767A (en) | Area source brightness uniformity adjusting method, device and system | |
| US20210278654A1 (en) | System and Method for Template-Based Image Analysis | |
| Wang et al. | Out-of-focus color camera calibration with one normal-sized color-coded pattern | |
| CN107564446A (en) | A kind of panel lighting machine, panel lighting test system and method for testing | |
| US10247546B2 (en) | Image processing system and method for detecting a target object area based on height information | |
| CN107036530A (en) | The calibration system and method for the location of workpiece | |
| CN114219850B (en) | Vehicle ranging system applying 360-degree panoramic looking-around technology | |
| CN116740187A (en) | Multi-camera combined calibration method without overlapping view fields | |
| CN107656387A (en) | A kind of liquid crystal display contraposition skew defect inspection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |