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Camera stain detection method and related device

A stain detection and camera technology, applied in computer parts, character and pattern recognition, calculation and other directions, can solve the problems of halo or vignetting detection as stains, unable to detect brightness changes, low stain detection accuracy, etc. The effect of reducing the possibility of detection as stains, reducing missed detection, and improving efficiency

Pending Publication Date: 2022-04-15
HANGZHOU TUYA INFORMATION TECH CO LTD
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Problems solved by technology

[0002] In order to detect whether there is a stain in the camera lens, the camera is mainly shot at the uniform luminous plate to obtain a detection map, and then the stain is detected by the method of edge detection, which is easy to detect part of the halo or vignetting as a stain or cannot be detected The stains with insignificant brightness changes, resulting in low stain detection accuracy

Method used

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  • Camera stain detection method and related device
  • Camera stain detection method and related device
  • Camera stain detection method and related device

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0017] refer to figure 1 , figure 1 It is a schematic flow chart of an embodiment of the camera stain detection method of the present application, and the method includes:

[0018] S101: Obtain a target image obtained by shooting a target area by a camera, and convert the target image into a brightness image.

[0019] Specifically, the specific implementation process of the above step S101 includes: placing the camera as close as possible to the target area,...

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Abstract

The invention discloses a camera stain detection method and a related device, and the method comprises the steps: obtaining a target image obtained through the shooting of a target region by a camera, and converting the target image into a brightness image; wherein the surface of the target area is flat and has the same color; performing edge detection on the brightness image to obtain an edge expansion image, and performing brightness screening on the brightness image to obtain a dark pixel image; and combining the edge expansion image and the dark pixel image to obtain a stain detection image. Through the above mode, the accuracy of stain detection can be improved, leak detection of stains is reduced, the possibility of detecting halo or dark corners as stains is reduced, and the efficiency of stain detection is improved.

Description

technical field [0001] The present application relates to the technical field of image detection, in particular to a camera stain detection method and a related device. Background technique [0002] In order to detect whether there is a stain in the camera lens, the camera is mainly shot at the uniform luminous plate to obtain a detection map, and then the stain is detected by the method of edge detection, which is easy to detect part of the halo or vignetting as a stain or cannot be detected The stains with insignificant changes in brightness are produced, resulting in low stain detection accuracy. Contents of the invention [0003] The technical problem mainly solved by this application is to provide a camera stain detection method and a related device, which can improve the accuracy of stain detection. [0004] In order to solve the above technical problems, a technical solution adopted by the present application is to provide a camera stain detection method, comprisin...

Claims

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Application Information

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IPC IPC(8): G06V10/44G06V10/50G06V10/34G06V10/30
Inventor 曹绪民
Owner HANGZHOU TUYA INFORMATION TECH CO LTD
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