CN113096060B - Positioning method and device for abnormal color lamp beads and storage medium - Google Patents

Positioning method and device for abnormal color lamp beads and storage medium Download PDF

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Publication number
CN113096060B
CN113096060B CN201911333550.4A CN201911333550A CN113096060B CN 113096060 B CN113096060 B CN 113096060B CN 201911333550 A CN201911333550 A CN 201911333550A CN 113096060 B CN113096060 B CN 113096060B
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display screen
screen image
communication area
lamp beads
determining
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CN113096060A (en
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章琦杰
蓝明华
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Hangzhou Hikvision Digital Technology Co Ltd
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Hangzhou Hikvision Digital Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/90—Determination of colour characteristics
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30121—CRT, LCD or plasma display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30242—Counting objects in image
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention provides a method, a device and a storage medium for positioning abnormal color lamp beads, wherein the method comprises the following steps: acquiring a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified; for a display screen image in which the lamp beads emit only each of three monochromatic lights of RGB, the following operations are performed: analyzing and determining the size of each lamp bead in the display screen image, and determining the reference size of the lamp beads in the display screen image according to the size of each lamp bead; performing color extraction based on each of the other two types of monochromatic light on the display screen image to obtain an image corresponding to the other two types of monochromatic light; and carrying out binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp bead in the display screen image according to the analyzed communication area and the reference size of the lamp bead in the display screen image.

Description

Positioning method and device for abnormal color lamp beads and storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for positioning a color abnormal bead, and a storage medium.
Background
The existing lamp bead positioning method is to extract the center of the lamp bead by binarizing image data and according to the connected domain of the image data after binarization, and then position the center point of the lamp bead in a line-by-line or column-by-column mode according to a certain search step length.
The accuracy of the above-mentioned lamp bead positioning method depends on a given search step length to a certain extent, and the search step length is determined according to the lamp interval of the lamp bead image, so that the effect of the size of the actual lamp bead image is great, and after all the lamp beads are positioned, it is further necessary to determine whether the light emitting color of each lamp bead is normal, so as to find out the lamp bead with abnormal color.
It can be seen that in the positioning process of the existing color abnormal lamp beads, a given search step is needed, the influence of the actual lamp bead image size is larger, and the color abnormal lamp beads are found out after the positions of all the lamp beads are required to be positioned, so that the calculation amount is larger, and the detection time is longer.
Disclosure of Invention
In view of the above, the present invention aims to provide a method, an apparatus and a storage medium for positioning a color abnormal lamp bead, which do not need to give a search step, are less affected by the size of an actual lamp bead image, and have a smaller calculation amount.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a positioning method of abnormal color lamp beads comprises the following steps:
acquiring a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified;
aiming at the display screen image that the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified, the following operations are executed:
respectively extracting the color of each of the other two types of monochromatic light based on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image.
A positioning device for color abnormal lamp beads, comprising:
the acquisition unit is used for acquiring the display screen image of each single-color light of three single-color lights of RGB only emitted by the lamp beads after the display screen is electrified;
The processing unit is used for executing the following operations aiming at the display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by the lamp beads after the display screen is electrified:
performing color extraction based on each of the other two types of monochromatic light on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image.
A non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform steps in a method of locating color abnormal beads as described above.
An electronic device comprising a non-transitory computer readable storage medium, a processor, and a computer program stored on the non-transitory computer readable storage medium and executable on the processor, the processor implementing the steps of when executing the program:
Acquiring a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified;
aiming at the display screen image that the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified, the following operations are executed:
respectively extracting the color of each of the other two types of monochromatic light based on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image.
According to the technical scheme, the display screen images of the display screen, which emit light beads in three types of monochromatic light of RGB only, are obtained respectively, color extraction based on each of the other two types of monochromatic light is performed on the display screen images of the display screen which emit light beads in three types of monochromatic light of RGB only, and the light beads which emit one of the other two types of monochromatic light are highlighted in the corresponding extracted images through binarization processing, so that the positions of the abnormal color light beads in the display screen can be found out from the highlighted connected domain according to the reference sizes of the light beads in the display screen images. It can be seen that in the technical scheme of the invention, the searching step length is not required to be given, so that the influence of the actual lamp bead image size is small; in addition, the invention only needs to extract the color of each single color light in the other two single color lights by carrying out color extraction based on the display screen image of each single color light in the three single color lights of RGB (red, green and blue) of the lamp beads, and the position of the abnormal color lamp bead in the display screen image can be highlighted through binarization processing, so that the whole process only needs to position the abnormal color lamp bead, and all lamp bead positions do not need to be positioned, thereby having smaller calculated amount and shorter detection time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a flowchart of a method for positioning an abnormal color bead according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for locating a two-color abnormal lamp bead according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a connected domain detection process of a display screen image according to an embodiment of the present application;
FIG. 4 is a schematic view of the width and height of the smallest circumscribed rectangle of the connected domain of each bead according to the embodiment of the present application;
FIG. 5 is a schematic diagram of a process for analyzing positions of abnormal color beads in a display screen image according to an embodiment of the present application;
FIG. 6 is a flowchart of a method for locating a three-color abnormal lamp bead according to an embodiment of the present application;
FIG. 7 is a flowchart of a method for locating a four-color abnormal lamp bead according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a positioning device for abnormal color beads according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the embodiment of the application, the center point of the lamp bead is not positioned in a row-by-row or column-by-column mode based on the search step length, but the color extraction based on each of the other two types of monochromatic light is carried out on the display screen image of each of the three types of monochromatic light only emitting RGB, and the lamp bead emitting each of the other two types of monochromatic light is highlighted in the image corresponding to the extraction through binarization processing, so that the position of the color abnormal lamp bead in the display screen image can be determined, and finally the position of the color abnormal lamp bead in the display screen can be determined. Because the whole process only needs to locate the abnormal lamp beads, the calculated amount is small, and the detection time is correspondingly short.
The method provided by the invention is described in detail below with reference to specific examples.
Example 1
Referring to fig. 1, fig. 1 is a flowchart of a method for positioning an abnormal color bead according to an embodiment of the present invention, as shown in fig. 1, the method mainly includes the following steps:
and 101, acquiring a display screen image of which the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified.
In the embodiment of the invention, the display screen can be an LED display screen, an LCD display screen, an OLED display screen and the like.
In practical application, each bead in the display screen is composed of at least one light-emitting component capable of emitting different monochromatic lights, and only one light-emitting component capable of emitting a certain monochromatic light or all light-emitting components can emit light under the control of the display screen controller, for example, when each bead in the display screen is composed of three light-emitting components capable of emitting red light, green light and blue light, when only the light-emitting component capable of emitting red light emits light, the whole bead emits red light only; when only the light-emitting components emitting green light emit light, the whole lamp bead emits green light only; when only the light-emitting component emitting blue light emits light, the whole lamp bead emits blue light only; when the three light emitting devices that emit only red light, only green light, and only blue light emit light, the entire lamp bead emits a mixture of three monochromatic lights (for example, white light).
In this step 101, a display screen image in which the lamp beads emit only each of three monochromatic lights of RGB after the display screen is powered on is obtained, that is, a display screen image in which the lamp beads emit only red light, a display screen image in which the lamp beads emit only green light, and a display screen image in which the lamp beads emit only blue light are obtained.
Step 102, for a display screen image in which the lamp beads emit only each of the three monochromatic lights of RGB, the following operation steps 1021-1023 are performed to determine the positions of the abnormal-color lamp beads in the display screen image.
In the embodiment of the invention, the positions of the lamp beads which emit one of the other two monochromatic lights in the display screen image are determined by analyzing the display screen image which emits each of the three monochromatic lights of RGB only (namely, steps 1021-1023), and the lamp beads which emit the other monochromatic lights are the abnormal lamp beads.
Step 1021, analyzing and determining the size of each lamp bead in the display screen image, and determining the reference size of the lamp beads in the display screen image according to the size of each lamp bead;
step 1022, extracting the color of the display screen image based on each of the other two kinds of monochromatic light, so as to obtain an image corresponding to each of the other two kinds of monochromatic light;
Here, in an image obtained by extracting the color of the display screen image based on a certain monochromatic light, the difference between the pixel gray level of the position of the lamp bead emitting the monochromatic light and the pixel gray level of the other lamp bead positions is more obvious.
Step 1023, performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing the connected region in the binarized image, and determining the positions of the abnormal color lamp beads in the display screen image according to the analyzed connected region and the reference sizes of the lamp beads in the display screen image.
After the image corresponding to each of the other two monochromatic lights is subjected to binarization processing, the positions of the lamp beads emitting the other two monochromatic lights are highlighted, so that the positions of the lamp beads with abnormal colors can be determined by detecting the connected domain and utilizing the reference sizes of the lamp beads in the image of the display screen. For example, when a color extraction based on red light is performed on a display screen image in which the light beads emit only green light, if there is a red light bead (abnormal color light bead) in the display screen image, the position of the red light bead will be highlighted, so that the position of the red light bead can be determined by the subsequent connected domain detection and the comparison of the reference sizes of the light beads in the display screen image.
It can be seen that, in the embodiment of the present invention shown in fig. 1, after the display screen is electrified, the display screen image that the lamp beads emit only each of the three monochromatic lights of RGB is obtained respectively, and the image corresponding to each of the other two monochromatic lights is obtained by performing color extraction based on each of the other two monochromatic lights on the display screen image that emits only each of the three monochromatic lights of RGB, and performing binarization processing on the image corresponding to each of the other two monochromatic lights, so that the color-abnormal lamp beads in the image are highlighted, and then the positions of the color-abnormal lamp beads in the display screen image are determined according to the detection result of the connected domain and the reference size of the lamp beads in the display screen image. In the whole processing process, the searching step length is not required to be set, all the lamp beads are positioned in a row-by-row or column-by-column mode, so that the influence of the size of an actual lamp bead image is small, the color extraction based on each of other two types of monochromatic light is only required to be carried out on the display screen image, the position of the abnormal color lamp bead can be analyzed and determined by combining binarization processing and connected domain detection, the position analysis of the abnormal color lamp bead is not required to be carried out after all the lamp bead positions are positioned, the calculated amount is small, and the detection speed is high.
Example two
Referring to fig. 2, fig. 2 is a flowchart of a method for positioning a two-color abnormal bead according to an embodiment of the present invention, as shown in fig. 2, the method specifically includes the following steps:
step 201, obtaining a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified.
Through this step 201, a display screen image in which the beads emit only red light, a display screen image in which the beads emit only green light, and a display screen image in which the beads emit only blue light can be obtained.
Step 202, for a display screen image in which the lamp beads emit only each of the three monochromatic lights of RGB, the following operation steps 2021 to 2023d are performed to determine the positions of the abnormal-color lamp beads in the display screen image.
In the embodiment of the present invention, by analyzing the display screen image that emits only each of the three monochromatic lights of RGB (i.e., steps 2021-2023 d), the positions of the lamp beads that emit one of the other two monochromatic lights in the display screen image are determined, and the lamp beads that emit one of the other two monochromatic lights are the abnormal-color lamp beads.
Step 2021, analyzing and determining the size of each bead in the display screen image, and determining the reference size of the bead in the display screen image according to the size of each bead.
In an embodiment of the present invention, the dimensions of the beads include height and width.
The analysis determines the height and width of each bead in the display screen image, and specifically includes the following steps:
s11, detecting the connected domain of the display screen image to obtain the connected domain of each lamp bead in the display screen image;
s12, determining the minimum circumscribed rectangle of the communication domain of each lamp bead in the display screen image, and taking the height and the width of the minimum circumscribed rectangle as the height and the width of the lamp beads respectively.
Through the steps S11 to S12, the connected domain of each bead in the display screen image and the minimum bounding rectangle of each connected domain can be determined through analysis, as shown in fig. 3, and the height and the width of the minimum bounding rectangle of each connected domain of each bead are respectively used as the height and the width of the bead, so that the height and the width of all beads in the display screen image as shown in fig. 4 can be finally obtained.
In the embodiment of the invention, the reference dimension of the lamp bead in the display screen image comprises a reference height and a reference width.
The method for determining the reference height and the reference width of the lamp beads in the display screen image according to the height and the width of each lamp bead specifically comprises the following steps: and calculating the average height and average width of the lamp beads in the display screen image, and respectively determining the average height and average width as the reference height and the reference width of the lamp beads in the display screen image.
For example, assuming that there are n beads in a display screen image, the reference heights href= (h1+h2+h3+ … +hn)/n, and the reference widths wref= (w1+w2+w3+ … +wn)/n of the beads in the display screen image are the height and width of the ith bead, respectively.
Step 2022, performing color extraction on the display screen image based on each of the other two monochromatic lights, to obtain an image corresponding to the one of the other two monochromatic lights.
Here, in an image obtained by extracting the color of the display screen image based on a certain monochromatic light, the difference between the pixel gray level of the position of the lamp bead emitting the monochromatic light and the pixel gray level of the other lamp bead positions is more obvious.
Taking the display screen image as a display screen image with only green light emitted by the lamp beads as an example, the color extraction based on each of the remaining 2 kinds of monochromatic light can be performed on the display screen image, and it is assumed that the first image on the left side in fig. 5 is the display screen image with only green light emitted by the lamp beads after the display screen is electrified, two lamp beads in a white square frame in the display screen image emit red light (two lamp beads emitting red light are abnormal lamp beads), other lamp beads emit green light, the color extraction based on red light of the display screen image can be performed on the display screen image to obtain an image corresponding to red light (i.e. an image of an R channel), and the color extraction based on blue light of the display screen image can be performed on the display screen image to obtain an image corresponding to blue light (i.e. an image of a B channel), specifically as shown in the image of the second column in fig. 5.
Step 2023a, binarizing the image corresponding to each of the other two monochromatic lights, and analyzing the connected region in the binarized image.
In the embodiment of the invention, the specific method for performing binarization processing on the image corresponding to each of the other two monochromatic lights is as follows: and calculating an average gray value of each pixel point in the image, taking the average gray value as a binarization threshold value, and carrying out binarization processing on the image according to the binarization threshold value.
After binarizing the image corresponding to each of the other two kinds of monochromatic lights, the light beads emitting the same kind of monochromatic light in the image corresponding to the same kind of the other two kinds of monochromatic lights can be highlighted, as shown in the third column of image in fig. 5. For example, the image corresponding to the red light is subjected to binarization processing, and the red light-emitting position may be highlighted, as shown in the lower image in the third-column image in fig. 5, two red light-emitting bead positions are highlighted; after binarizing the image corresponding to blue light, the positions of the blue light-emitting beads can be highlighted, as shown in the upper image in the third column of images in fig. 5, since there are no blue light-emitting beads in the image, the positions of the blue light-emitting beads are not highlighted.
Step 2023b, determining the minimum bounding rectangle of each analyzed communication area;
2023c, calculating the ratio of the height and width of the minimum circumscribed rectangle of the communication area to the reference height and reference width of the lamp beads in the display screen image respectively;
and step 2023d, if the ratio of the height of the minimum bounding rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the minimum bounding rectangle of the communication area to the reference width of the lamp beads in the display screen image are outside a preset threshold range [ 1-delta t,1+ ], determining that the communication area is not the abnormal color lamp bead position, otherwise, determining that the communication area is the abnormal color lamp bead position.
In the embodiment of the present invention, Δt is a preset value, and the value is between 0 and 1, for example, the value is 0.1. In step 2023d, a connected domain is actually filtered, the connected domain having a size different from the reference size of the lamp beads in the display screen image is filtered, and only the connected domain having a size different from the reference size of the lamp beads in the display screen image is retained, wherein the connected domain filtering result is as shown in the fourth row of image in fig. 5, and the connected domain in the image of the B channel is not present after the connected domain is filtered, so that it can be determined that the display screen image is not present with abnormal color lamp beads emitting blue light; the connected domain in the image of the R channel is filtered to form 2 connected domains, so that the display screen image can be determined to have 2 abnormal color lamp beads emitting red light.
Considering that the same size of the lamp beads are usually adopted in the same display screen, the sizes of the lamp beads are not greatly different. Therefore, in the embodiment of the invention, the size of the analyzed communication area is compared with the reference size of the lamp beads in the display screen image, the communication area with smaller size difference is determined as the position of the abnormal lamp beads, and the communication area with larger size difference is filtered out, so that the accuracy of identifying the abnormal lamp beads is improved.
Steps 2023a to 2023d above are one specific way of step 1023 in the embodiment of the present invention shown in fig. 1. Steps 2023b to 2023d are specific implementation manners of determining the positions of the abnormal color beads in the display screen image according to the analyzed communication area and the reference sizes of the beads in the display screen image in step 1023.
In the embodiment of the present invention shown in fig. 1, and in the following embodiments of the present invention shown in fig. 6 and 7, the connected domain analysis, the determination of the minimum circumscribed rectangle, and the like are performed on the display screen image in which the lamp bead emits only a certain monochromatic light, and are performed in units of light emitting components emitting the monochromatic light, that is, the analyzed connected domain, the minimum circumscribed rectangle, and the like are substantially the connected domain and the minimum circumscribed rectangle corresponding to the light emitting components emitting the monochromatic light. Therefore, the finally determined position of the abnormal color bead should be the position of the light emitting element emitting the monochromatic light of the color, but since the light emitting element itself is an integral part of the bead, the determined position of the light emitting element is regarded as the position of the bead containing the light emitting element in the embodiment of the present invention.
It can be seen that, compared with the embodiment of the present invention shown in fig. 1, the embodiment of the present invention shown in fig. 2 has the advantages of the embodiment of the present invention shown in fig. 1, and in addition, when the color extraction based on each of the other two monochromatic lights is performed on the display screen image, and the position of the color abnormal lamp bead is determined by combining with the binarization processing and the detection of the connected domain, the size of each connected domain is compared with the reference size of the lamp bead in the display screen image, so as to implement the connected domain filtering, and thus, the accuracy of identifying the color abnormal lamp bead can be effectively improved.
Example III
Referring to fig. 6, fig. 6 is a flowchart of a method for positioning abnormal three-color beads according to an embodiment of the present invention, as shown in fig. 6, the method specifically includes the following steps:
and 601, acquiring a display screen image of which the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified.
Step 602, for a display screen image that emits only each of three monochromatic lights of RGB, the following operation steps 6021-6023e are performed to determine the positions of the color anomaly light beads in the display screen image.
Step 6021, analyzing and determining the size of each lamp bead in the display screen image, and determining the reference size (including the reference height and the reference width) of the lamp beads in the display screen image according to the size of each lamp bead.
Step 6022, performing color extraction based on each of the other two types of monochromatic lights on the display screen image to obtain an image corresponding to the other two types of monochromatic lights.
Step 6023a, binarizing the image corresponding to each of the other two types of monochromatic light, and analyzing the connected region in the binarized image.
Step 6023b, determining the minimum circumscribed rectangle of each analyzed communication area;
step 6023c, calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
the implementation principle of the steps 601-6023c is the same as that of the steps 201-2023c in the embodiment of the present invention shown in fig. 2, and will not be described again.
Step 6023d, if the ratio of the height of the smallest circumscribed rectangle of the connected region to the reference height of the lamp beads in the display screen image and the ratio of the width of the smallest circumscribed rectangle of the connected region to the reference width of the lamp beads in the display screen image are outside the preset threshold range [1- Δt,1+ ], determining that the connected region is not the abnormal color lamp bead position, otherwise, further executing step 6023e.
Considering that the same size of the lamp beads are usually adopted in the same display screen, the sizes of the lamp beads are not greatly different. Therefore, in the embodiment of the present invention, the size of the analyzed connected region is compared with the reference size of the lamp bead in the display screen image, the connected region with larger size difference is filtered, and further judgment can be performed on the connected region with smaller size difference, that is, step 6023e is performed.
Step 6023e, judging whether the color corresponding to the communication area in the display screen image is consistent with the light emitting color of the lamp beads in the display screen image, if so, determining that the communication area is not the abnormal color lamp bead position, and if not, determining that the communication area is the abnormal color lamp bead position.
In step 6023e, after determining the connected domains with little difference from the reference size of the beads in the display screen image, the colors of the corresponding positions of the connected domains in the display screen image are compared with the light emitting colors of the beads in the display screen image, and if the colors are consistent, the positions of the beads are not abnormal, and if the colors are inconsistent, the positions of the beads are considered to be abnormal.
Steps 6023a to 6023e above may implement step 1023 in the embodiment of the invention shown in fig. 1. The above steps 2023b to 2023e may implement the operation step of determining the position of the abnormal color light bead in the display screen image according to the analyzed communication area, the reference height and the reference width in the above step 1023.
It can be seen that, compared with the embodiment of the present invention shown in fig. 2, in addition to the advantages of the embodiment of the present invention shown in fig. 2, after each connected domain close to the reference size of the lamp bead in the display screen image is determined, the determined connected domain is further compared with the light emitting color of the lamp bead in the display screen image, and only the connected domains with inconsistent color contrast are determined as the positions of the abnormal color lamp beads. The color of each communication domain is compared with the luminous color of the lamp beads in the display screen image, so that the accuracy of identifying the abnormal color lamp beads can be further improved.
Example IV
Referring to fig. 7, fig. 7 is a flowchart of a method for positioning abnormal beads in four colors according to an embodiment of the present invention, as shown in fig. 7, the method mainly includes the following steps:
and 701, acquiring a display screen image of which the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified.
Step 702, for the acquired display screen image that emits only each of the three monochromatic lights of RGB, the following operation steps 7021-7023 are performed to determine the positions of the abnormal color light beads in the display screen image.
Step 7021, analyzing and determining the size of each lamp bead in the display screen image, and determining the reference size of the lamp beads in the display screen image according to the size of each lamp bead;
Step 7022, performing color extraction on the display screen image based on each of the other two types of monochromatic light to obtain an image corresponding to the one of the other two types of monochromatic light;
step 7023, performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing the connected region in the image after binarization processing, and determining the position of the abnormal color lamp bead in the display screen image according to the analyzed connected region and the reference size of the lamp bead in the display screen image.
The implementation principle of the steps 701-7023 is the same as that of the steps 101-1023 in the embodiment of the present invention shown in fig. 1, and will not be repeated.
And 703, summarizing the number of abnormal color lamp beads, if the ratio of the number of abnormal color lamp beads to the total number of lamp beads in the display screen exceeds a preset threshold, determining that the quality inspection of the display screen is unqualified, otherwise, determining that the quality inspection of the display screen is qualified.
In an embodiment of the present invention, after steps 7021-7023 are performed for a display screen image that emits only each of three monochromatic lights of RGB, the positions of color anomaly light beads in the display screen image may be determined. While after determining the color anomaly bead locations in the display screen image that emit only each of the three monochromatic lights of RGB, this step 703 may be further performed to determine the quality inspection results for the display screen.
In the embodiment of the invention, when the quality inspection of the display screen is determined to be unqualified, the positions of the abnormal color lamp beads in the display screen can be further output, so that production line detection personnel can manually review the unqualified display screen according to the positions.
It can be seen that, in the embodiment of the present invention shown in fig. 7, compared with the embodiment of the present invention shown in fig. 1, after determining the positions of the abnormal color beads in the display screen, whether the display screen is qualified is further determined according to the proportion of the abnormal color beads, and for the unqualified display screen, the positions of the abnormal color beads may be output to facilitate subsequent manual review of the unqualified display screen.
The above describes the method for positioning the abnormal color lamp beads in detail, and the embodiment of the invention also provides a device for positioning the abnormal color lamp beads, which is described in detail below with reference to fig. 8.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a positioning device for abnormal color beads according to an embodiment of the present invention, as shown in fig. 8, the device includes:
an obtaining unit 801, configured to obtain a display screen image in which the lamp bead emits only each of three monochromatic lights of RGB after the display screen is powered on;
the processing unit 802 is configured to perform the following operations for a display screen image in which the lamp bead emits only each of three monochromatic lights of RGB after the display screen is powered on:
Performing color extraction based on each of the other two types of monochromatic light on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image.
In the apparatus shown in figure 8 of the drawings,
the size of the lamp beads comprises a height and a width;
the processing unit 802 determines the height and width of each bead in the display screen image, including:
detecting the connected domain of the display screen image to obtain the connected domain of each lamp bead in the display screen image;
determining the minimum circumscribed rectangle of the communication domain of each lamp bead in the display screen image, and taking the height and the width of the minimum circumscribed rectangle as the height and the width of the lamp beads respectively.
In the apparatus shown in figure 8 of the drawings,
the reference dimension of the lamp bead comprises a reference height and a reference width;
The processing unit 802 determines a reference size of each bead in the display screen image according to the size of the bead in the display screen image, including:
and calculating the average height and average width of the lamp beads in the display screen image, and respectively determining the average height and average width as the reference height and the reference width of the lamp beads in the display screen image.
In the apparatus shown in figure 8 of the drawings,
the processing unit 802 is configured to, when performing binarization processing on an image corresponding to each of the other two types of monochromatic light:
and calculating an average gray value of each pixel point in the image, taking the average gray value as a binarization threshold value, and carrying out binarization processing on the image according to the binarization threshold value.
In the apparatus shown in figure 8 of the drawings,
the reference dimensions of the lamp bead include: a reference height and a reference width;
the processing unit 802 determines, according to the analyzed communication area and the reference size of the lamp bead in the display screen image, the position of the abnormal color lamp bead in the display screen image, including:
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
If the ratio of the height of the minimum bounding rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the minimum bounding rectangle of the communication area to the reference width of the lamp beads in the display screen image are out of a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise, determining that the communication area is the abnormal color lamp bead position.
In the apparatus shown in figure 8 of the drawings,
the reference dimensions of the lamp bead include: a reference height and a reference width;
the processing unit 802 determines, according to the analyzed communication area and the reference size of the lamp bead in the display screen image, the position of the abnormal color lamp bead in the display screen image, including:
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
if the ratio of the height of the smallest circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the smallest circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are outside a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise,
Further judging whether the color corresponding to the communication area in the display screen image is consistent with the luminous color of the lamp beads in the display screen image, if so, determining that the communication area is not the abnormal color lamp bead position, and if not, determining that the communication area is the abnormal color lamp bead position.
In the apparatus shown in figure 8 of the drawings,
the device further comprises a quality inspection unit 803 for summarizing the number of abnormal color beads after the processing unit 802 determines the positions of abnormal color beads in the display screen image emitting only each of the three kinds of monochromatic light, and if the ratio of the number of abnormal color beads to the total number of beads in the display screen exceeds a preset threshold, determining that the quality inspection of the display screen is failed, otherwise, determining that the quality inspection of the display screen is qualified.
In the apparatus shown in figure 8 of the drawings,
the quality inspection unit 803 is further configured to, after determining that the display screen quality inspection is not qualified: and outputting the positions of the abnormal color lamp beads in the display screen.
Embodiments of the present invention also provide a non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform steps in a method of locating color abnormal beads as shown in fig. 1, 2, 6, and 7.
The embodiment of the present invention further provides an electronic device, as shown in fig. 9, the electronic device 900 includes a non-transitory computer readable storage medium 901, a processor 902, and a computer program stored on the non-transitory computer readable storage medium 901 and executable on the processor 902, the processor implementing the following steps when executing the program:
acquiring a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified;
aiming at the display screen image that the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified, the following operations are executed:
respectively extracting the color of each of the other two types of monochromatic light based on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.

Claims (14)

1. The method for positioning the lamp beads with abnormal colors is characterized by comprising the following steps:
acquiring a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified;
aiming at the display screen image that the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified, the following operations are executed:
respectively extracting the color of each of the other two types of monochromatic light based on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image;
Wherein the reference dimension includes a reference height and a reference width;
the determining the position of the abnormal color lamp bead in the display screen image according to the analyzed communication area and the reference size of the lamp bead in the display screen image comprises the following steps:
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
if the ratio of the height of the minimum circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the minimum circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are out of a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise, determining that the communication area is the abnormal color lamp bead position;
or alternatively, the process may be performed,
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
if the ratio of the height of the smallest circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the smallest circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are outside a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise,
Further judging whether the color corresponding to the communication area in the display screen image is consistent with the luminous color of the lamp beads in the display screen image, if so, determining that the communication area is not the abnormal color lamp bead position, and if not, determining that the communication area is the abnormal color lamp bead position.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the size of the lamp beads comprises a height and a width;
the height and width of each lamp bead in the display screen image are determined by the following method:
detecting the connected domain of the display screen image to obtain the connected domain of each lamp bead in the display screen image;
determining the minimum circumscribed rectangle of the communication domain of each lamp bead in the display screen image, and taking the height and the width of the minimum circumscribed rectangle as the height and the width of the lamp beads respectively.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the method for determining the reference size of the lamp beads in the display screen image according to the size of each lamp bead in the display screen image comprises the following steps:
and calculating the average height and average width of the lamp beads in the display screen image, and respectively determining the average height and average width as the reference height and the reference width of the lamp beads in the display screen image.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the method for binarizing the image corresponding to each of the other two monochromatic lights comprises the following steps:
and calculating an average gray value of each pixel point in the image, taking the average gray value as a binarization threshold value, and carrying out binarization processing on the image according to the binarization threshold value.
5. The method of claim 1, wherein the method comprises the steps of,
the method further comprises the steps of: after determining the positions of abnormal color lamp beads in each display screen image which only emits monochromatic light, summarizing the number of the abnormal color lamp beads, if the ratio of the abnormal color lamp bead number to the total amount of the lamp beads in the display screen exceeds a preset threshold, determining that the quality inspection of the display screen is unqualified, otherwise, determining that the quality inspection of the display screen is qualified.
6. The method of claim 5, wherein the step of determining the position of the probe is performed,
after determining that the display screen quality inspection is unqualified, the method further comprises the following steps: and outputting the positions of the abnormal color lamp beads in the display screen.
7. A positioning device for a color anomaly lamp bead, the device comprising:
the acquisition unit is used for acquiring the display screen image of each single-color light of three single-color lights of RGB only emitted by the lamp beads after the display screen is electrified;
The processing unit is used for executing the following operations aiming at the display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by the lamp beads after the display screen is electrified:
performing color extraction based on each of the other two types of monochromatic light on the display screen image to obtain an image corresponding to the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image;
wherein the reference dimension includes a reference height and a reference width;
the processing unit determines the position of the abnormal color lamp bead in the display screen image according to the analyzed communication area and the reference size of the lamp bead in the display screen image, and comprises the following steps:
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
If the ratio of the height of the minimum circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the minimum circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are out of a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise, determining that the communication area is the abnormal color lamp bead position;
or alternatively, the process may be performed,
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
if the ratio of the height of the smallest circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the smallest circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are outside a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise,
further judging whether the color corresponding to the communication area in the display screen image is consistent with the luminous color of the lamp beads in the display screen image, if so, determining that the communication area is not the abnormal color lamp bead position, and if not, determining that the communication area is the abnormal color lamp bead position.
8. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the size of the lamp beads comprises a height and a width;
the processing unit determines the height and width of each lamp bead in the display screen image, and comprises the following steps:
detecting the connected domain of the display screen image to obtain the connected domain of each lamp bead in the display screen image;
determining the minimum circumscribed rectangle of the communication domain of each lamp bead in the display screen image, and taking the height and the width of the minimum circumscribed rectangle as the height and the width of the lamp beads respectively.
9. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the processing unit determines a reference size of the lamp beads in the display screen image according to the size of each lamp bead in the display screen image, and comprises the following steps:
and calculating the average height and average width of the lamp beads in the display screen image, and respectively determining the average height and average width as the reference height and the reference width of the lamp beads in the display screen image.
10. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the processing unit is configured to, when performing binarization processing on an image corresponding to each of the other two types of monochromatic light:
and calculating an average gray value of each pixel point in the image, taking the average gray value as a binarization threshold value, and carrying out binarization processing on the image according to the binarization threshold value.
11. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the device further comprises a quality inspection unit, wherein the quality inspection unit is used for summarizing the quantity of abnormal color lamp beads after the processing unit determines the positions of abnormal color lamp beads in the display screen image which only emit each of three monochromatic lights of RGB, if the ratio of the quantity of abnormal color lamp beads to the total quantity of lamp beads in the display screen exceeds a preset threshold value, the quality inspection of the display screen is determined to be unqualified, and otherwise, the quality inspection of the display screen is determined to be qualified.
12. The apparatus of claim 11, wherein the device comprises a plurality of sensors,
the quality inspection unit is further used for after determining that the display screen quality inspection is unqualified: and outputting the positions of the abnormal color lamp beads in the display screen.
13. A non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps in the method of locating color abnormal beads according to any one of claims 1 to 6.
14. An electronic device comprising a non-transitory computer readable storage medium, a processor, and a computer program stored on the non-transitory computer readable storage medium and executable on the processor, wherein the processor when executing the program performs the steps of:
Acquiring a display screen image of each of three monochromatic lights of RGB (red, green and blue) emitted by a lamp bead after the display screen is electrified;
aiming at the display screen image that the lamp beads only emit each of three monochromatic lights of RGB after the display screen is electrified, the following operations are executed:
respectively extracting the color of each of the other two types of monochromatic light based on the display screen image to obtain an image corresponding to each of the other two types of monochromatic light;
performing binarization processing on the image corresponding to each of the other two monochromatic lights, analyzing a communication area in the image subjected to the binarization processing, and determining the position of the abnormal color lamp beads in the display screen image according to the analyzed communication area and the reference size of the lamp beads in the display screen image; the reference size of the lamp beads in the display screen image is determined according to the size of each lamp bead in the display screen image;
wherein the reference dimension includes a reference height and a reference width;
the processor determines the position of the abnormal color lamp bead in the display screen image according to the analyzed communication area and the reference size of the lamp bead in the display screen image, and comprises the following steps:
determining the minimum circumscribed rectangle of each analyzed communication area;
Calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
if the ratio of the height of the minimum circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the minimum circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are out of a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise, determining that the communication area is the abnormal color lamp bead position;
or alternatively, the process may be performed,
determining the minimum circumscribed rectangle of each analyzed communication area;
calculating the ratio of the height and the width of the minimum circumscribed rectangle of the communication area to the reference height and the reference width of the lamp beads in the display screen image respectively;
if the ratio of the height of the smallest circumscribed rectangle of the communication area to the reference height of the lamp beads in the display screen image and the ratio of the width of the smallest circumscribed rectangle of the communication area to the reference width of the lamp beads in the display screen image are outside a preset threshold range [ 1-delta t,1+ [ delta ] then determining that the communication area is not the abnormal color lamp bead position, otherwise,
Further judging whether the color corresponding to the communication area in the display screen image is consistent with the luminous color of the lamp beads in the display screen image, if so, determining that the communication area is not the abnormal color lamp bead position, and if not, determining that the communication area is the abnormal color lamp bead position.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113825281A (en) * 2021-09-13 2021-12-21 萤火虫（深圳）灯光科技有限公司 Light control method, light controller, equipment and storage medium
CN114279683A (en) * 2021-11-22 2022-04-05 浙江大华技术股份有限公司 Automatic detection platform for display screen, method thereof and LED display screen
CN116721105B (en) * 2023-08-11 2023-10-20 山东淼珠生物科技有限公司 Explosive bead production abnormality online detection method based on artificial intelligence

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1877281A (en) * 2005-06-10 2006-12-13 精工爱普生株式会社 Display panel module, display unit, inspection device for display panel
JP2013225400A (en) * 2012-04-20 2013-10-31 Omron Corp Abnormality detection device, program, and abnormality detection method
CN106023883A (en) * 2016-07-15 2016-10-12 西安诺瓦电子科技有限公司 Local abnormal light point processing method after correction of LED display device
CN107103867A (en) * 2017-04-19 2017-08-29 西安诺瓦电子科技有限公司 Display control card detection method and device, detecting system and production line
CN110175997A (en) * 2019-05-30 2019-08-27 深圳市洲明科技股份有限公司 Show screen dead pixel detection method, device, computer equipment and storage medium
CN110189670A (en) * 2019-06-24 2019-08-30 珠海格力智能装备有限公司 A kind of LED display screen defect inspection method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10380438B2 (en) * 2017-03-06 2019-08-13 Honda Motor Co., Ltd. System and method for vehicle control based on red color and green color detection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1877281A (en) * 2005-06-10 2006-12-13 精工爱普生株式会社 Display panel module, display unit, inspection device for display panel
JP2013225400A (en) * 2012-04-20 2013-10-31 Omron Corp Abnormality detection device, program, and abnormality detection method
CN106023883A (en) * 2016-07-15 2016-10-12 西安诺瓦电子科技有限公司 Local abnormal light point processing method after correction of LED display device
CN107103867A (en) * 2017-04-19 2017-08-29 西安诺瓦电子科技有限公司 Display control card detection method and device, detecting system and production line
CN110175997A (en) * 2019-05-30 2019-08-27 深圳市洲明科技股份有限公司 Show screen dead pixel detection method, device, computer equipment and storage medium
CN110189670A (en) * 2019-06-24 2019-08-30 珠海格力智能装备有限公司 A kind of LED display screen defect inspection method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A hybrid approach based on Hotelling statistics for automated visual inspection of display blemishes in LCD panels;Yuan-Shyi et al.;《Expert Systems with Applications》;第36卷(第10期);全文 *

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