Screen detection method and system

A screen detection and screen technology, applied in image data processing, instrumentation, computing, etc., can solve problems such as prolonged detection time

Active Publication Date: 2020-09-29
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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Embodiment Construction

[0061] The object of the present invention is to provide a screen detection method and system, so as to improve the speed of screen detection while ensuring the accuracy of screen detection.

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, the invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] To achieve the above object, the present invention provides the following scheme:

[0064] Such as figure 1 As shown, the present invention provides a screen detection method, and the detection method includes the following steps:

[0065] Step 101, performing preprocessing on the color picture of the screen to be detected to obtain a preprocessed picture.

[0066] Step 101 specifically includes: performing grayscale processing on the color picture, and obtaining a grayscale processed picture as a preprocessed picture.

[0067] Specificall...

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Abstract

The invention discloses a screen detection method and system. The detection method comprises the steps of: preprocessing a color image of a to-be-detected screen to obtain a preprocessed image; carrying out edge detection on the preprocessed picture by adopting a convolution operator to obtain an edge detection result; based on the edge detection result, performing defective pixel detection by adopting a convolutional filtering algorithm to obtain a defective pixel detection result; and based on the edge detection result, carrying out bad line detection by adopting a Hough line detection algorithm to obtain a bad line detection result. According to the method, the convolution operator is adopted for edge detection, the edge detection speed is increased while the edge detection precision isimproved, the obtained edge detection result can be used for bad line detection and defective pixel detection, and the detection speed is further increased through repeated utilization of the same calculation result.

Description

technical field [0001] The invention relates to the technical field of screen detection, in particular to a screen detection method and system. Background technique [0002] In the production of electronic screens, defect detection is an important part of the production line. At present, many production lines still use manual observation, and the results depend on human experience and are unstable, and the production cost is high. Therefore, manual inspection needs to be replaced by machine intelligence technology. It is aimed at the simple, reliable, accurate and real-time requirements in industrial production. [0003] Screen defect detection is one of the important problems in industrial production. The general steps of applying traditional image processing methods to detect surface defects of objects are as follows: First, apply image processing methods to perform image preprocessing on the target image, so as to process each pixel accurately. Then set, adjust and imp...

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Application Information

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IPC IPC(8): G06T7/00G06T7/13G06T5/00
CPCG06T7/0002G06T7/13G06T5/009G06T2207/20024
Inventor 高岩王孟醒申立勇
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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