CN109819245A - The On-line Measuring Method and device of chroma luminance data based on AOI platform - Google Patents
The On-line Measuring Method and device of chroma luminance data based on AOI platform Download PDFInfo
- Publication number
- CN109819245A CN109819245A CN201910068883.2A CN201910068883A CN109819245A CN 109819245 A CN109819245 A CN 109819245A CN 201910068883 A CN201910068883 A CN 201910068883A CN 109819245 A CN109819245 A CN 109819245A
- Authority
- CN
- China
- Prior art keywords
- data
- panel
- regxyz
- data set
- acquisition
- 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
Abstract
The invention discloses a kind of On-line Measuring Methods of chroma luminance data based on AOI platform, the method includes camera and color analysis instruments to acquire ImgRGB data set and regXYZ data set respectively, obtain transformation model, ImgRGB data set is converted to by ImgXYZ numerical value using transformation model, from the regXYZ numerical value extracted in regXYZ data set from calibration position, the XYZ numerical value for corresponding to calibration position is extracted from ImgXYZ numerical value, and the two will compare, obtain compensation coefficient, all ImgXYZ numerical value are corrected using compensation coefficient, obtain the first chroma luminance value ImgXYZ.Elder generation's automatic data collection of the present invention, the data for reusing color analysis instrument correct camera data, while improving efficiency, also improve the Stability and veracity for obtaining data, and reduce manpower and equipment cost.
Description
Technical field
The present invention relates to automatic optics inspection field more particularly to a kind of chroma luminance data based on AOI platform to exist
Line measurement method and device.
Background technique
With the fast development of electronic technology, image sensing technology and computer technology, using based on optical image sensing
AOI (Automated Optical Inspection, automatic optics inspection) technology replace manually visualize detection surface defect,
It has been increasingly becoming the important means of surface defects detection, because this method has, automation, non-contact, speed is fast, precision is high,
The advantages that stability is high.AOI technology, also referred to as mechanical vision inspection technology or Automatic Visual Inspection technology utilize optics side
Formula obtains the surface state of finished product, detects the flaws such as foreign matter or pattern anomalies with image processing, because be contactless inspection,
It is widely used in the manufacturings such as FPD, semiconductor, solar energy.
Existing method there are mainly two types of the method for carrying out chroma luminance DATA REASONING to panel based on AOI platform.
First method: using CCD (Charge Coupled Device, charge coupling device) camera to the figure of panel
As data are acquired, acquired image data import in the drawing tools of computer again and obtain relative luminance chroma data.
This method comprises: (11) manually open pulse signal generator administrative unit (i.e. PG tension management platform), it will be quasi- in advance
The grayscale picture to be measured of standby one (such as picture of black picture, red picture, blue picture, green picture) imported into pulse signal
In device administrative unit, and pass through pulse signal generator administrative unit control wave generator (i.e. PG signal generator) point
Bright panel, to show the grayscale picture to be measured on panel；(12) manual control colorful CCD camera and black-white CCD camera opposite
Plate is shot to obtain image data respectively；(13) image data is managed by the way of human-edited's title；(14)
Step (11)-(13) are repeated, are finished until pre-prepd all grayscale pictures to be measured all acquire, to obtain all images
Data；(15) acquired image data import in the drawing tools of computer again and obtain relative luminance chroma data.
Second method: being acquired using coloration and brightness data of the CA-310/CA-410 color analysis instrument to panel,
Obtain Benchmark brightness and chroma data comprising: (21) manually open pulse signal generator administrative unit (the i.e. upper layer PG
Manage platform), by pre-prepd one grayscale picture (such as picture of black picture, red picture, blue picture, green picture) to be measured
It imported into pulse signal generator administrative unit, pulse signal generator administrative unit sends and shown on mark figure to panel
Show, so that grayscale picture to be measured is divided into multiple regions；(22) manually the acquisition of CA-310/CA-410 color analysis instrument is visited
Some region that head is placed into multiple division regions carries out the chroma data in the region and brightness data data acquire, and according to
It is secondary to repeat aforesaid operations, until the data acquisition to all areas finishes, to obtain face corresponding with the grayscale picture to be measured
The benchmark chroma data and brightness data of plate；(23) artificial observation device screen carries out manual data record；(24) step is repeated
(21)-(23) are finished until pre-prepd all grayscale pictures to be measured all acquire, to obtain all benchmark chroma datas
And brightness data.
However, in the first On-line Measuring Method, due to the position of the image data camera subject of acquisition, external environment,
The factors such as the exposure when configuration of camera, acquisition are affected, thus the image data obtained is usually inconsistent, so as to cause
The brightness and color data inaccuracy of measurement.In second of On-line Measuring Method, due to needing manually to join during measurement
With, it can not keep stable so as to cause measurement result, and efficiency is also influenced by the level of human operators, so as to cause
Measurement efficiency it is lower and measurement stability it is poor.
Summary of the invention
The embodiment of the present invention provides the On-line Measuring Method and device of a kind of chroma luminance data based on AOI platform,
Solve the problems, such as that measurement efficiency is low in the prior art, measurement data is not accurate and stability is poor.
On the one hand, the embodiment of the invention provides a kind of On-line Measuring Methods of chroma luminance data based on AOI platform.
Specifically, the On-line Measuring Method of the chroma luminance data based on AOI platform includes:
It treats the grayscale picture to be measured that test panel is shown automatically simultaneously by camera and color analysis instrument to be acquired, phase
Machine obtains ImgRGB data set, and color analysis instrument obtains regXYZ data set, ImgRGB data set and regXYZ data set according to
The data storage path of setting is stored in corresponding file directory；
According to the ImgRGB data set of the panel model of panel to be tested having the same and regXYZ data set obtain with
The corresponding transformation model of panel model, and according to the data of setting storage path be stored in transformation model corresponding with panel model
File directory in；
Corresponding ImgRGB data set is converted to by ImgXYZ numerical value using transformation model corresponding with panel model；
According to panel model, from the regXYZ number extracted in the regXYZ data set that color analysis instrument obtains from calibration position
Value；
The XYZ numerical value for corresponding to calibration position, and the XYZ numerical value that calibration position will be corresponded to are extracted from ImgXYZ numerical value
It is compared with regXYZ numerical value, obtains compensation coefficient；
All ImgXYZ numerical value are corrected using compensation coefficient, obtain the first chroma luminance value ImgXYZ.
Preferably, further comprising the steps of after obtaining the first chroma luminance value ImgXYZ: to be converted by chromaticity coordinate public
First chroma luminance value ImgXYZ is converted to the second chroma luminance value Img_xyLv by formula.Understandably, by the first chroma luminance
Value ImgXYZ is converted to the value in chromaticity coordinate, convenient for more directly and intuitively obtaining chroma luminance directly in chromaticity coordinate
Value.
Preferably, compensation coefficient is the ratio between the XYZ numerical value and regXYZ numerical value corresponding to calibration position.
Preferably, the grayscale picture to be measured that test panel is shown automatically is treated simultaneously by camera and color analysis instrument to carry out
Acquisition, camera obtain ImgRGB data set, and color analysis instrument obtains regXYZ data set, ImgRGB data set and regXYZ data
Collection includes: configuration grayscale picture to be measured according to the step that the data storage path of setting is stored in corresponding file directory
RGB combination obtains multiple grayscale pictures to be measured；Configure faceplate formation, camera acquisition information and the color analysis of panel to be tested
Instrument acquires information；Corresponding text is generated according to faceplate formation, camera acquisition information, color analysis instrument acquisition information and data type
Part catalogue simultaneously sets data storage path；According to camera acquire information, control camera treat test panel show automatically it is to be measured
Grayscale picture is acquired, and the ImgRGB data set of acquisition is stored in corresponding file directory according to the data storage path of setting
In；Acquire information according to color analysis instrument, control color analysis instrument treat grayscale picture to be measured that test panel is shown automatically into
The regXYZ data set of row acquisition, acquisition is stored in corresponding file directory according to the data storage path of setting.
In the above-mentioned implementation of the embodiment of the present invention, first, the file directory includes multistage subfile catalogue,
When data management, acquired image data and chroma luminance data can be subjected to classification according to the sequence of setting and hierarchically deposited
It puts, consequently facilitating user uses these data.Specific classification and layering can carry out open customization according to the demand of user, allow use
Family voluntarily carries out the storage and use of data.Second, it is customized due to that can be carried out to the RGB combination of gray-scale figure piece to be measured, because
And user can formulate grayscale picture to be measured as desired.Third, since the present invention is passing through camera and color analysis instrument to data
Being acquired is automatic rand acquisition side typing (i.e. acquisition and typing in real time) in the document into computer, thus is also greatly mentioned
The high accuracy of collecting efficiency and data record, the data record generated so as to avoid Input Process mistake it is inaccurate
True problem, and keep the acquisition of data and record management more intelligent.4th, due to only needing the software to data management to carry out
It configures and configuration information can save, thus meet client and demand is acquired for the data of variety classes panel, increases use
The customizability at family improves data acquisition efficiency, reduces manpower and hardware device cost, improves the steady of the data of acquisition
Determine reliability and makes to acquire more flexible and efficiently controllable.5th, the present invention adopts the data that camera acquires and color analysis instrument
The data of collection have been stored according to set requirements in same file catalogue, realize unified classification and management, thus with
During the latter corrects the former, the accuracy of correction efficiency and correction is improved.
Preferably, information is acquired according to camera, control camera treat grayscale picture to be measured that test panel is shown automatically into
The ImgRGB data set of row acquisition, acquisition is stored in the step packet in corresponding file directory according to the data storage path of setting
It includes: automatically switching grayscale picture to be tested；Information is acquired according to camera, control camera is respectively to showing different grayscale to be measured
The panel to be tested of picture is acquired to obtain ImgRGB data set；The ImgRGB data set of acquisition is stored according to the data of setting
Path is stored in corresponding file directory.
It, can be to customized multiple grayscale pictures to be measured or standard in the above-mentioned implementation of the embodiment of the present invention
Multiple grayscale pictures to be measured carry out automatic collections, participated in without artificial, to improve the efficiency of acquisition.
Preferably, information is acquired according to color analysis instrument, control color analysis instrument treat that test panel shows automatically to
It surveys grayscale picture to be acquired, the regXYZ data set of acquisition is stored in corresponding file mesh according to the data storage path of setting
Step in record includes: (i) according to the transverse and longitudinal ratio generation mark figure between the quantity of the acquisition point of setting and acquisition point；
(ii) show that measured panel is divided into multiple regions by the mark figure, mark figure on panel to be tested；(iii) by color point
The acquisition probe of analyzer is placed into one of region；(iv) automatically switch grayscale picture to be tested；(v) according to color analysis instrument
Information is acquired, color analysis instrument carries out regXYZ data to the panel to be tested for showing different grayscale pictures to be measured respectively
Acquisition；(vi) the regXYZ data obtained are stored in corresponding file directory according to the data storage path of setting；(vii) it presses
According to the sequence of setting, the acquisition probe of color analysis instrument is placed into another region and repeats step (iv)-step (vi), directly
RegXYZ data in all areas are all collected and are stored in corresponding file directory.
In the above-mentioned implementation of the embodiment of the present invention, when acquiring chroma luminance data with color analysis instrument, not only
The point bit quantity of acquisition and the arrangement (i.e. transverse and longitudinal ratio) of acquisition point can be configured, but also support the complete of full point
The automatic collection of grayscale picture, without manually participating in, to improve the efficiency of acquisition.
Preferably, faceplate formation includes panel model, panel number, panel size, the resolution ratio of panel and positions of panels,
Data type includes camera data and color analysis instrument data, and camera acquisition information includes the frequency acquisition of camera, acquisition time delay
And automatic exposure, color analysis instrument acquisition information include the frequency acquisition and acquisition time delay of color analysis instrument.
Preferably, according to the ImgRGB data set and regXYZ number of the panel model of panel to be tested having the same
Corresponding with panel model transformation model is obtained according to collection, and is stored path according to the data of setting and be stored in transformation model and face
Step in the corresponding file directory of template number includes: that calibration is extracted in the ImgRGB data set of panel model having the same
The RGB data collection of position；The regXYZ data of calibration position are extracted in the regXYZ data set of panel model having the same
Collection；The RGB data collection for demarcating position and the regXYZ data set of calibration position are corresponded, transformation model is obtained.
Preferably, transformation model is established using the method for BP neural network or fitting of a polynomial.
On the other hand, the embodiment of the invention provides a kind of on-line measurement systems of chroma luminance data based on AOI platform
System.
Specifically, the on-line measurement system of the chroma luminance data based on AOI platform includes:
Camera acquisition module, for according to camera acquire information, control camera treat test panel show automatically it is to be measured
Grayscale picture is acquired, and obtains ImgRGB data set；
Color analysis instrument acquisition module controls color analysis instrument to be tested for acquiring information according to color analysis instrument
The grayscale picture to be measured that panel is shown automatically is acquired, and obtains regXYZ data set；
Data management module, faceplate formation, camera acquisition information and color analysis instrument for configuring panel to be tested are adopted
Collect information, and corresponding file is generated according to faceplate formation, camera acquisition information, color analysis instrument acquisition information and data type
Catalogue simultaneously sets data storage path, and the collected ImgRGB data set of camera acquisition module and color analysis instrument are acquired mould
The collected regXYZ data set of block is stored in corresponding file directory according to the data storage path of setting, and according to setting
Data storage path the transformation model that transformation model generation module is sent is stored in file directory corresponding with panel model
In；
Transformation model generation module, for the ImgRGB data set according to the panel model of panel to be tested having the same
Transformation model is obtained with regXYZ data set；
Rectification module, for being converted corresponding ImgRGB data set using transformation model corresponding with the panel model
For ImgXYZ numerical value, and the XYZ numerical value for corresponding to calibration position is extracted from ImgXYZ numerical value, and will correspond to calibration position
XYZ numerical value and the regXYZ number according to panel model from extraction calibration position in the regXYZ data set that color analysis instrument obtains
Value compares, and obtains compensation coefficient, and correct to all ImgXYZ numerical value using compensation coefficient, it is bright to obtain the first coloration
Angle value ImgXYZ；
Format converting module, for the first chroma luminance value ImgXYZ to be converted to second by chromaticity coordinate conversion formula
Chroma luminance value Img_xyLv.
Technical solution provided in an embodiment of the present invention has the benefit that
(1) since grayscale picture to be measured of the invention is to automatically switch, thus collecting efficiency can be improved；
(2) present invention corrects the ImgRGB data of camera acquisition by the XYZ numerical value that color analysis instrument acquires in real time, thus
The efficient measurement pattern that can be shot in measurement using camera, then the data of camera measurement are rectified by correction information
Just, it allows measurement accuracy to greatly improve the level for being similar to color analysis instrument, and measures fully automated realization, stability mentions significantly
Height makes to measure reliable and stable, saving human cost；
(3) present invention has very strong versatility, can not only be suitable for the colour measurement of display panel, for other colorations
Measurement also has certain adaptability.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing make one simply introduce, it should be apparent that, drawings in the following description are some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of on-line measurement side for chroma luminance data based on AOI platform that embodiment of the present invention method provides
The flow chart of method；
Fig. 2 is a kind of on-line measurement side for chroma luminance data based on AOI platform that embodiment of the present invention method provides
The flow chart of the step S10 of method.
Fig. 3 is a kind of on-line measurement side for chroma luminance data based on AOI platform that embodiment of the present invention method provides
The flow chart of the step S104 of method.
Fig. 4 is a kind of on-line measurement side for chroma luminance data based on AOI platform that embodiment of the present invention method provides
The process map flow chart of the step S105 of method.
Fig. 5 is the schematic diagram that figure is identified described in step S105.
Fig. 6 is a kind of on-line measurement side for chroma luminance data based on AOI platform that embodiment of the present invention method provides
The flow chart of the step S20 of method.
Fig. 7 is a kind of on-line measurement system for chroma luminance data based on AOI platform that present system embodiment provides
The structural schematic diagram of system.
Fig. 8 is the structural schematic diagram of camera acquisition module in Fig. 7.
Fig. 9 is the structural schematic diagram of color analysis instrument acquisition module in Fig. 7.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention are described in further detail.
The embodiment of the invention provides a kind of On-line Measuring Methods of chroma luminance data based on AOI platform, referring to figure
1, this method comprises:
Step S10, pass through camera and color analysis instrument treat simultaneously grayscale picture to be measured that test panel is shown automatically into
Row acquisition, camera obtain ImgRGB data set (i.e. RGB data), and color analysis instrument obtains regXYZ data set, and (i.e. three primary colours are pierced
Swash value), ImgRGB data set and regXYZ data set are stored in corresponding file directory according to the data storage path of setting；
In a kind of implementation in embodiments of the present invention, camera includes colorful CCD camera and black-white CCD camera, color
Color analyzer is CA-310 color analysis instrument or CA-410 color analysis instrument.
With reference to Fig. 2, step S10 specifically the following steps are included:
Step S101 configures the RGB combination of grayscale picture to be measured, obtains multiple grayscale pictures to be measured；
Step S102 configures faceplate formation, camera acquisition information and the color analysis instrument acquisition information of panel to be tested；
Step S103, according to faceplate formation, camera acquisition information, color analysis instrument acquisition information and data type generation pair
The file directory answered simultaneously sets data storage path；
Step S104 acquires information according to camera, and control camera treats the grayscale picture to be measured that test panel is shown automatically
It is acquired, the ImgRGB data set of acquisition is stored in corresponding file directory according to the data storage path of setting；
Step S105 acquires information according to color analysis instrument, and control color analysis instrument treats what test panel was shown automatically
Grayscale picture to be measured is acquired, and the regXYZ data set of acquisition is stored in corresponding file according to the data storage path of setting
In catalogue.
Further, in step s101, customized due to that can be carried out to the RGB combination of gray-scale figure piece to be measured, thus
User can formulate grayscale picture to be measured as desired.
In step s 102, faceplate formation includes panel model, panel number, panel size, the resolution ratio of panel and face
Board position.Data type includes camera data and color analysis instrument data, wherein camera acquisition information includes the acquisition frequency of camera
Rate, acquisition time delay and automatic exposure, color analysis instrument acquisition information include the frequency acquisition and acquisition time delay of color analysis instrument.It can
Understand ground, the present invention supports the configuration of a variety of acquisition information.
In step s 103, file directory can be by acquired image in data management comprising multistage subfile catalogue
Data and chroma luminance data carry out classification according to the sequence of setting and hierarchically store, consequently facilitating user uses these numbers
According to.Specific classification and layering can carry out open customization according to the demand of user, and user is allowed voluntarily to carry out the storage of data and make
With.For example, can be using the formal classification for being followed successively by panel type, location information, panel number, for bright for image data
Spending chroma data can be using the formal classification of panel type, panel number.In addition, since the present invention is passing through camera and color
It is automatic rand acquisition side typing (i.e. acquisition and typing in real time) in the document into computer that analyzer, which is acquired data, because
And the accuracy of collecting efficiency and data record is also greatly improved, the number generated so as to avoid Input Process mistake
According to the inaccurate problem of record, and keep the acquisition of data and record management more intelligent.Furthermore due to only needing to data pipe
The software of reason carries out configuration and configuration information can save, thus meeting client need to for the data acquisition of variety classes panel
The customizability for asking, increasing user improves data acquisition efficiency, reduces manpower and hardware device cost, improves and adopt
The reliability of the data of collection simultaneously makes to acquire more flexible and efficiently controllable.Moreover, the present invention data that acquire camera and
The data of color analysis instrument acquisition have been stored according to set requirements in same file catalogue, realize unified classification and pipe
Reason, thus during correcting the former with the latter, improve the accuracy of correction efficiency and correction.
As shown in figure 3, step S104 is specifically included:
(11) automatically switch grayscale picture to be tested；
(12) information is acquired according to camera, controls camera respectively to the face to be tested for showing different grayscale pictures to be measured
Plate is acquired to obtain ImgRGB data set；
(13) the ImgRGB data set obtained is stored in corresponding file directory according to the data storage path of setting.
About step S104, as another implementation in the embodiment of the present invention, panel to be tested can also be shown automatically
Show specific grayscale picture to be measured, to realize that single specifies the acquisition of gray scale image.Which specifically includes the following steps:
(11 '), which automatically switch to, specifies grayscale picture to be measured；
(21 ') according to camera acquire information, control camera to show specify the panel to be tested of grayscale picture to be measured into
Row shooting obtains image data；
(31 ') image data obtained is stored in corresponding file directory according to the data storage path of setting.
In above-mentioned steps (11 '), the above-mentioned implementation of the present embodiment can by with pulse signal generator management
Unit (i.e. PG tension management platform) is communicated, thus the signal generated to pulse signal generator (i.e. PG signal generator)
It is controlled, allows measured panel to show specific grayscale picture to be measured, and then according to the needs of users, just for certain specific width
Grayscale picture to be measured is acquired, so that the acquisition mode of the present embodiment is more flexible and controllable.
As shown in figure 4, step S105 is specifically included:
(i) mark figure is generated according to the transverse and longitudinal ratio between the quantity of the acquisition point of setting and acquisition point；
(ii) show that measured panel is divided into multiple regions by mark figure, mark figure on panel to be tested；
(iii) acquisition probe of color analysis instrument is placed into one of region；
(iv) automatically switch grayscale picture to be tested；
(v) information is acquired according to color analysis instrument, control color analysis instrument is respectively to showing different gray-scale figures to be measured
The panel to be tested of piece carries out the acquisition of regXYZ data；
(vi) the regXYZ data obtained are stored in corresponding file directory according to the data storage path of setting；
(vii) according to the sequence of setting, the acquisition probe of color analysis instrument is placed into another region and repeats step
(iv)-step (vi), until the regXYZ data in all areas are all collected and are stored in corresponding file directory.
It, not only can be to the point of acquisition when acquiring chroma luminance data with color analysis instrument in above-mentioned implementation
The arrangement (i.e. transverse and longitudinal ratio) of bit quantity and acquisition point configured (as shown in figure 5, there is 9 collection points on mark figure, thus
Measured panel is divided into 9 regions.It should be noted that the mark figure can be shot simultaneously when camera acquires data, thus
Calibration position mentioned below can be obtained from the mark figure), but also support the complete of full point (i.e. all 9 pickup areas)
The automatic collection of grayscale picture, without manually participating in, to improve the efficiency of acquisition.
It should be noted that color analysis instrument not only may be implemented in the automatic switchover grayscale picture to be tested in step (iv)
When acquisition to single specify grayscale picture acquisition, can also realize color analysis instrument acquisition when to whole grayscale pictures
Automatic collection, the step of two kinds of acquisition modes, is identical as two kinds of acquisition modes of camera, and which is not described herein again.
About step S105, as another implementation in the embodiment of the present invention, color analysis instrument can also be achieved list
The acquisition of the full grayscale picture of point (i.e. single region).Which specifically includes the following steps:
(i ') generates mark figure according to the transverse and longitudinal ratio between the quantity of the acquisition point of setting and acquisition point；
(ii ') shows that measured panel is divided into multiple regions by mark figure, mark figure on panel to be tested；
The acquisition probe of color analysis instrument is placed into specified region by (iii ')；
(iv ') automatically switches grayscale picture to be tested；
(v ') acquires information according to color analysis instrument, and color analysis instrument is respectively to showing different grayscale pictures to be measured
Panel to be tested carry out chroma luminance data acquisition；
The multiple groups chroma luminance data of (vi '), acquisition are stored in corresponding file mesh according to the data storage path of setting
In record.
It, not only can be to the point of acquisition when acquiring chroma luminance data with color analysis instrument in above-mentioned implementation
The arrangement (i.e. transverse and longitudinal ratio) of bit quantity and acquisition point configured (as shown in figure 5, there is 9 collection points on mark figure, thus
Measured panel is divided into 9 regions), but also support the acquisition of the full grayscale picture of single-point position (i.e. single region), to increase
The flexibility and controllability of acquisition are added.
It should be noted that camera acquisition not only may be implemented in the automatic switchover grayscale picture to be tested in step (iv ')
When to single specify grayscale picture acquisition, can also realize camera acquisition when to whole grayscale pictures automatically adopting
The step of collection, two kinds of acquisition modes, is identical as two kinds of acquisition modes of camera, and which is not described herein again.
Step S20, according to the ImgRGB data set and regXYZ data of the panel model of panel to be tested having the same
Collection obtains corresponding with panel model transformation model, and stores path according to the data of setting and be stored in transformation model and panel
In the corresponding file directory of model；
As shown in fig. 6, step S20 is specifically included:
Step S201 extracts the RGB data collection of calibration position in the ImgRGB data set of panel model having the same；
Step S202 extracts the regXYZ data of calibration position in the regXYZ data set of panel model having the same
Collection；
The RGB data collection for demarcating position and the regXYZ data set of calibration position are corresponded, are obtained by step S203
To transformation model Q1.
Specifically, transformation model Q1 is established using the method for BP neural network or fitting of a polynomial.
Corresponding ImgRGB data set is converted to ImgXYZ using transformation model corresponding with panel model by step S30
Numerical value；
Step S40 is demarcated from position according to panel model from extracting in the regXYZ data set that color analysis instrument obtains
RegXYZ numerical value；
Step S50 extracts the XYZ numerical value for corresponding to calibration position from ImgXYZ numerical value, and will correspond to calibration position
XYZ numerical value compared with regXYZ numerical value, obtain compensation coefficient；
Step S60 corrects all ImgXYZ numerical value using compensation coefficient, obtains the first chroma luminance value
ImgXYZ。
For example, the ratio in ImgXYZ numerical value between the XYZ numerical value and regXYZ numerical value of corresponding calibration position can be calculated directly
Value, using obtained ratio as compensation coefficient Q2.
First chroma luminance value ImgXYZ is converted to the second chroma luminance by chromaticity coordinate conversion formula by step S70
Value Img_xyLv.
Chromaticity coordinate conversion formula are as follows: x=X/ (X+Y+Z)；Y=Y/ (X+Y+Z)；Lv=Y.
Understandably, the first chroma luminance value ImgXYZ is converted into the value in chromaticity coordinate, convenient for directly sitting in chromaticity
Chroma luminance value more directly and is intuitively obtained in mark.
The embodiment of the present invention has the benefit that
(1) since grayscale picture to be measured of the invention is to automatically switch, it can to customized multiple grayscale to be measured
Picture or multiple grayscale pictures to be measured of standard carry out automatic collection, participate in without artificial, thus collecting efficiency can be improved；
(2) present invention corrects the ImgRGB data of camera acquisition by the XYZ numerical value that color analysis instrument acquires in real time, thus
The efficient measurement pattern that can be shot in measurement using camera, then the data of camera measurement are rectified by correction information
Just, it allows measurement accuracy to greatly improve the level for being similar to color analysis instrument, and measures fully automated realization stability and mention significantly
Height makes to measure reliable and stable, saving human cost；
(3) present invention has very strong versatility, can not only be suitable for the colour measurement of display panel, for other colorations
Measurement also has certain adaptability.
Referring to Fig. 7-9, the embodiments of the present invention also provide a kind of online surveys of chroma luminance data based on AOI platform
Amount system, including camera acquisition module 10, color analysis instrument acquisition module 20, data management module 30, transformation model generate mould
Block 40, rectification module 50 and format converting module 60.Wherein, camera acquisition module 10 is used to acquire information, control according to camera
Camera is treated the grayscale picture to be measured that test panel is shown automatically and is acquired, and ImgRGB data set is obtained.Color analysis instrument is adopted
Collect module 20 and be used to acquire information according to color analysis instrument, control color analysis instrument treats the ash to be measured that test panel is shown automatically
Rank picture is acquired, and obtains regXYZ data set.Data management module 30 is used to configure faceplate formation, the phase of panel to be tested
Machine acquires information and color analysis instrument acquires information, and acquires information according to faceplate formation, camera acquisition information, color analysis instrument
Corresponding file directory is generated with data type and sets data storage path, and by the collected ImgRGB of camera acquisition module
Data set and the collected regXYZ data set of color analysis instrument acquisition module are stored in pair according to the data storage path of setting
In the file directory answered, and stored according to the transformation model that the data of setting storage path sends transformation model generation module 40
Into file directory corresponding with panel model.Transformation model generation module 40 is used for according to panel to be tested having the same
The ImgRGB data set and regXYZ data set of panel model obtain transformation model.Rectification module 50 is used to use and panel model
Corresponding ImgRGB data set is converted to ImgXYZ numerical value by corresponding transformation model, and is extracted and corresponded to from ImgXYZ numerical value
The XYZ numerical value of position is demarcated, and obtained by the XYZ numerical value for corresponding to calibration position and according to panel model from color analysis instrument
The regXYZ numerical value at calibration position is extracted in regXYZ data set to compare, and obtains compensation coefficient, and use compensation coefficient
All ImgXYZ numerical value are corrected, the first chroma luminance value ImgXYZ is obtained.Format converting module 60 is for passing through chromaticity
First chroma luminance value ImgXYZ is converted to the second chroma luminance value Img_xyLv by Formula of Coordinate System Transformation.Specifically, camera is adopted
Collecting module 10 includes PG signal generator 101, PG tension management unit 102, AOI taking unit 103,104 and of black-white CCD camera
Colorful CCD camera 105.Black-white CCD camera 104 and colorful CCD camera 105 are used for the grayscale picture to be measured to Display panel to be measured
It is shot.PG tension management unit 102 is connect with PG signal generator 101, for control PG signal generator 101 light to
Survey panel.PG signal generator 101 is connect with measured panel.AOI taking unit 103 is connect with data management module 30, and root
The acquisition information control black-white CCD camera 104 and colorful CCD camera 105 sent according to data management module 30 is shot.Color
Analyzer acquisition module 20 includes sequentially connected PG signal generator 201, PG tension management unit 202, brightness and color acquisition
Unit 203 and acquisition probe 204.Acquisition probe 204 is connect with brightness and color acquisition unit 203, for Display panel to be measured
Grayscale picture to be measured shot.Brightness and color acquisition unit 203 is connect with data management module 30, and according to data management
The acquisition information control acquisition probe 204 that module 30 is sent is shot.PG tension management unit 202 and PG signal generator
201 connections, light measured panel for controlling PG signal generator 201.PG signal generator 201 is connect with measured panel.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of On-line Measuring Method of the chroma luminance data based on AOI platform, comprising:
It treats the grayscale picture to be measured that test panel is shown automatically simultaneously by camera and color analysis instrument to be acquired, the phase
Machine obtains ImgRGB data set, and the color analysis instrument obtains regXYZ data set, the ImgRGB data set and described
RegXYZ data set is stored in corresponding file directory according to the data storage path of setting；
According to the ImgRGB data set of the panel model of the panel to be tested having the same and the regXYZ data
Collection obtains transformation model corresponding with the panel model, and stores path for the transformation model according to the data of setting
It is stored in the file directory corresponding with the panel model；
The corresponding ImgRGB data set is converted to by ImgXYZ using the transformation model corresponding with the panel model
Numerical value；
According to the panel model, demarcated from position from being extracted in the regXYZ data set that the color analysis instrument obtains
RegXYZ numerical value；
The XYZ numerical value for corresponding to the calibration position is extracted from the ImgXYZ numerical value, and will correspond to the calibration position
XYZ numerical value compared with the regXYZ numerical value, obtain compensation coefficient；
All ImgXYZ numerical value are corrected using the compensation coefficient, obtain the first chroma luminance value ImgXYZ.
2. the On-line Measuring Method of the chroma luminance data based on AOI platform as described in claim 1, which is characterized in that
It is further comprising the steps of to after the first chroma luminance value ImgXYZ:
The first chroma luminance value ImgXYZ is converted into the second chroma luminance value Img_ by chromaticity coordinate conversion formula
xyLv。
3. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 1 or 2, which is characterized in that
The compensation coefficient is the ratio between the XYZ numerical value and the regXYZ numerical value corresponding to the calibration position.
4. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 1 or 2, which is characterized in that
It treats the grayscale picture to be measured that test panel is shown automatically simultaneously by camera and color analysis instrument to be acquired, the camera obtains
ImgRGB data set is obtained, the color analysis instrument obtains regXYZ data set, the ImgRGB data set and the regXYZ number
Include: according to the step that the data storage path of setting is stored in corresponding file directory according to collection
The RGB combination for configuring grayscale picture to be measured obtains multiple grayscale pictures to be measured；
Configure faceplate formation, camera acquisition information and the color analysis instrument acquisition information of the panel to be tested；
According to the faceplate formation, camera acquisition information, color analysis instrument acquisition information and data type generation pair
The file directory answered simultaneously sets data storage path；
Information is acquired according to the camera, controls the gray-scale figure to be measured that the camera shows the panel to be tested automatically
Piece is acquired, and the ImgRGB data set of acquisition is stored in the corresponding text according to the data storage path of setting
In part catalogue；
Information is acquired according to the color analysis instrument, controls the institute that the color analysis instrument shows the panel to be tested automatically
It states grayscale picture to be measured to be acquired, the regXYZ data set of acquisition is stored according to the data storage path of setting
In the corresponding file directory.
5. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 4, which is characterized in that root
Information is acquired according to the camera, control camera adopts the grayscale picture to be measured that the panel to be tested is shown automatically
The ImgRGB data set of collection, acquisition is stored in the corresponding file directory according to the data storage path of setting
The step of include:
Automatically switch to the test grayscale picture；
Information is acquired according to the camera, controls the camera respectively to showing described in the different grayscale pictures to be measured
Panel to be tested is acquired to obtain the ImgRGB data set；
The ImgRGB data set obtained is stored in the corresponding file directory according to the data storage path of setting
In.
6. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 4, which is characterized in that root
According to the color analysis instrument acquire information, control the color analysis instrument panel to be tested is shown automatically it is described to be measured
Grayscale picture is acquired, and the regXYZ data set of acquisition is stored in corresponding according to the data storage path of setting
Step in the file directory includes:
(i) mark figure is generated according to the transverse and longitudinal ratio between the quantity of the acquisition point of setting and acquisition point；
(ii) show that the measured panel is divided into multiple areas by the mark figure, the mark figure on the panel to be tested
Domain；
(iii) acquisition probe of the color analysis instrument is placed into one of them described region；
(iv) automatically switch to the test grayscale picture；
(v) according to the color analysis instrument acquire information, control the color analysis instrument respectively to show it is different described in
The panel to be tested for surveying grayscale picture carries out the acquisition of regXYZ data；
(vi) the regXYZ data obtained are stored in the corresponding file mesh according to the data storage path of setting
In record；
(vii) according to the sequence of setting, the acquisition probe of the color analysis instrument is placed into another described region and repetition
Step (iv)-step (vi), until the regXYZ data in all regions are all collected and are stored in the corresponding text
In part catalogue.
7. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 4, which is characterized in that institute
Stating faceplate formation includes panel model, panel number, panel size, the resolution ratio of panel and positions of panels, the data type
Including camera data and color analysis instrument data, the camera acquisition information includes the frequency acquisition of camera, acquires time delay and oneself
Dynamic exposure, the color analysis instrument acquisition information include the frequency acquisition and acquisition time delay of color analysis instrument.
8. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 1 or 2, which is characterized in that
It is obtained according to the ImgRGB data set of the panel model of the panel to be tested having the same and the regXYZ data set
Transformation model corresponding with the panel model, and according to the data of setting storage path by the transformation model be stored in
Step in the corresponding file directory of the panel model includes:
The RGB data collection of calibration position is extracted in the ImgRGB data set of the panel model having the same；
The regXYZ data set of calibration position is extracted in the regXYZ data set of the panel model having the same；
The RGB data collection of the calibration position and the regXYZ data set of the calibration position are corresponded, institute is obtained
State transformation model.
9. the On-line Measuring Method of the chroma luminance data based on AOI platform as claimed in claim 8, which is characterized in that adopt
The transformation model is established with the method for BP neural network or fitting of a polynomial.
10. a kind of on-line measurement system of the chroma luminance data based on AOI platform, comprising:
Camera acquisition module, for acquiring information according to camera, control camera treats the grayscale to be measured that test panel is shown automatically
Picture is acquired, and obtains ImgRGB data set；
Color analysis instrument acquisition module controls color analysis instrument to described to be tested for acquiring information according to color analysis instrument
The grayscale picture to be measured that panel is shown automatically is acquired, and obtains regXYZ data set；
Data management module, faceplate formation, camera acquisition information and color analysis instrument for configuring the panel to be tested are adopted
Collect information, and raw according to the faceplate formation, camera acquisition information, color analysis instrument acquisition information and data type
At corresponding file directory and data storage path is set, and by the collected ImgRGB data of the camera acquisition module
Collection and the collected regXYZ data set of the color analysis instrument acquisition module store path according to the data of setting
It is stored in the corresponding file directory, and turns according to the data of setting storage path by what transformation model generation module was sent
Mold changing type is stored in the file directory corresponding with panel model；
Transformation model generation module, for the ImgRGB number according to the panel model of the panel to be tested having the same
Transformation model is obtained according to collection and the regXYZ data set；
Rectification module, for using the transformation model corresponding with the panel model by the corresponding ImgRGB data set
ImgXYZ numerical value is converted to, and extracts the XYZ numerical value for corresponding to the calibration position from the ImgXYZ numerical value, and will correspond to
In the XYZ numerical value for demarcating position and the regXYZ data set obtained according to the panel model from the color analysis instrument
It extracts the regXYZ numerical value at calibration position to compare, obtains compensation coefficient, and using the compensation coefficient to all
ImgXYZ numerical value is corrected, and the first chroma luminance value ImgXYZ is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068883.2A CN109819245B (en) | 2019-01-24 | 2019-01-24 | On-line measuring method and device for chroma and brightness data based on AOI platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068883.2A CN109819245B (en) | 2019-01-24 | 2019-01-24 | On-line measuring method and device for chroma and brightness data based on AOI platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109819245A true CN109819245A (en) | 2019-05-28 |
| CN109819245B CN109819245B (en) | 2020-10-02 |
Family
ID=66603650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910068883.2A Active CN109819245B (en) | 2019-01-24 | 2019-01-24 | On-line measuring method and device for chroma and brightness data based on AOI platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109819245B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942748A (en) * | 2019-10-22 | 2020-03-31 | 武汉精立电子技术有限公司 | Panel voltage drop compensation method and device based on area array camera |
| CN110954305A (en) * | 2019-12-10 | 2020-04-03 | 深圳市摩西尔电子有限公司 | Self-monitoring type light source chromaticity and brightness data acquisition system and control method thereof |
| CN114112944A (en) * | 2022-01-25 | 2022-03-01 | 武汉精立电子技术有限公司 | Display panel measuring method |
| CN114453280A (en) * | 2022-01-25 | 2022-05-10 | 武汉精立电子技术有限公司 | Display panel defect detection method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101237A (en) * | 2007-08-21 | 2008-01-09 | 友达光电（苏州）有限公司 | Method for measuring luminescent picture brightness uniformity |
| CN101739922A (en) * | 2008-11-24 | 2010-06-16 | 英业达股份有限公司 | System and method for detecting color data of display |
| CN201780429U (en) * | 2010-01-07 | 2011-03-30 | 福建捷联电子有限公司 | Luminance uniformity test system of liquid-crystal display |
| CN103747243A (en) * | 2013-12-31 | 2014-04-23 | 深圳市华星光电技术有限公司 | LCD (Liquid Crystal Display) full-grayscale data acquisition method on basis of CCD (Charge Coupled Device) camera |
| CN104482953A (en) * | 2014-12-01 | 2015-04-01 | 科世达（上海）管理有限公司 | Automatic calibrating method, control device and system of automatic detecting equipment |
| CN106662484A (en) * | 2015-04-24 | 2017-05-10 | 华为技术有限公司 | Calibration method and apparatus for brightness detection value and chrominance detection value of optical camera |
| CN108007674A (en) * | 2017-10-31 | 2018-05-08 | 南昌与德通讯技术有限公司 | A kind of screen test system, method, apparatus and control device |
| CN108470334A (en) * | 2018-03-20 | 2018-08-31 | 上海顺久电子科技有限公司 | A kind of method and device of acquisition screen intensity and coloration |
-
2019
- 2019-01-24 CN CN201910068883.2A patent/CN109819245B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101237A (en) * | 2007-08-21 | 2008-01-09 | 友达光电（苏州）有限公司 | Method for measuring luminescent picture brightness uniformity |
| CN101739922A (en) * | 2008-11-24 | 2010-06-16 | 英业达股份有限公司 | System and method for detecting color data of display |
| CN201780429U (en) * | 2010-01-07 | 2011-03-30 | 福建捷联电子有限公司 | Luminance uniformity test system of liquid-crystal display |
| CN103747243A (en) * | 2013-12-31 | 2014-04-23 | 深圳市华星光电技术有限公司 | LCD (Liquid Crystal Display) full-grayscale data acquisition method on basis of CCD (Charge Coupled Device) camera |
| CN104482953A (en) * | 2014-12-01 | 2015-04-01 | 科世达（上海）管理有限公司 | Automatic calibrating method, control device and system of automatic detecting equipment |
| CN106662484A (en) * | 2015-04-24 | 2017-05-10 | 华为技术有限公司 | Calibration method and apparatus for brightness detection value and chrominance detection value of optical camera |
| CN108007674A (en) * | 2017-10-31 | 2018-05-08 | 南昌与德通讯技术有限公司 | A kind of screen test system, method, apparatus and control device |
| CN108470334A (en) * | 2018-03-20 | 2018-08-31 | 上海顺久电子科技有限公司 | A kind of method and device of acquisition screen intensity and coloration |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942748A (en) * | 2019-10-22 | 2020-03-31 | 武汉精立电子技术有限公司 | Panel voltage drop compensation method and device based on area array camera |
| CN110954305A (en) * | 2019-12-10 | 2020-04-03 | 深圳市摩西尔电子有限公司 | Self-monitoring type light source chromaticity and brightness data acquisition system and control method thereof |
| CN114112944A (en) * | 2022-01-25 | 2022-03-01 | 武汉精立电子技术有限公司 | Display panel measuring method |
| CN114453280A (en) * | 2022-01-25 | 2022-05-10 | 武汉精立电子技术有限公司 | Display panel defect detection method |
| CN114453280B (en) * | 2022-01-25 | 2024-03-26 | 武汉精立电子技术有限公司 | Display panel defect detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109819245B (en) | 2020-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109819245A (en) | The On-line Measuring Method and device of chroma luminance data based on AOI platform | |
| CN100594534C (en) | Lightness data obtaining method and device for gamma correction of LED | |
| CN107463789A (en) | A kind of integrated medical display self-checking device and its calibration method | |
| CN100529654C (en) | Measurement instrument and method suitable for remotely monitoring crack width of concrete | |
| CN103206925B (en) | Soldering inspection is with checking reference enrollment method and the base board checking device by the method | |
| CN109979389A (en) | Gamma correction method and device, display device, computer storage medium | |
| CN201904067U (en) | Nonuniform point-by-point correction system for full-color LED display screen | |
| KR20020066375A (en) | Method for non-destruction inspection, apparatus thereof and digital camera system | |
| CN110567987A (en) | Feeder terminal substrate detection system and method based on automatic vision technology | |
| CN105547342B (en) | Industrial lens test device and method based on liquid crystal panel | |
| CN108416765A (en) | A kind of character defect automatic testing method and system | |
| CN109671388A (en) | The acquisition methods and device of correction data | |
| CN107144755B (en) | A kind of charge-coupled device charge transfer effciency universal testing method based on hot spot | |
| CN106525861B (en) | The method of adjustment and device of the test parameter of AOI | |
| CN110310596A (en) | A kind of the GAMMA adjusting initial value prediction technique and system of OLED mould group | |
| CN108986721A (en) | A kind of test pattern generation method for display panel detection | |
| CN109448615A (en) | A kind of automatic adjustment method of Electronic Paper drive waveforms | |
| CN109710477B (en) | The system and method that a kind of pair of plane interaction carries out automatic test | |
| CN107316594A (en) | A kind of OLED minitype displayer automatic checkout system and method | |
| CN204346368U (en) | A kind of measuring system of electric wire structure | |
| CN102006496B (en) | Data processing equipment and method for implementing video signal measurement | |
| CN101527859B (en) | Method for adjusting gray scale white balance of display | |
| WO2023216397A1 (en) | Electrostatic automatic test system based on vision hybrid positioning | |
| CN110514303A (en) | It is a kind of for the display uniformity of Soft proofing and the detection method of grey balance | |
| CN116086773A (en) | Medical optical instrument performance detection software system and operation 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 |