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Spot detection method on the surface of automobile rearview mirror

A technology for automobile rearview mirror and surface spots, which is applied in the field of image processing, can solve the problems of difficulty and high cost of spot detection on the surface of rearview mirrors, and achieves the effects of avoiding the decline of the recognition rate, fast recognition speed and high precision

Active Publication Date: 2022-04-01
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a method for detecting spots on the surface of automobile rearview mirrors, so as to solve the problem of high difficulty and high cost in the detection of spots on the surface of existing automobile rearview mirrors

Method used

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  • Spot detection method on the surface of automobile rearview mirror
  • Spot detection method on the surface of automobile rearview mirror
  • Spot detection method on the surface of automobile rearview mirror

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Embodiment Construction

[0035] The method for spot detection on the surface of the automobile rearview mirror proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0036] The core idea of ​​the present invention is to provide a method for detecting spots on the surface of a rearview mirror of an automobile, so as to solve the problem that the detection of spots on the surface of the rearview mirror of an automobile is difficult and costly.

[0037] In order to realize the above idea, the present invention provides a method for detecting spots on the surface of a rearview mirror of an a...

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Abstract

The invention provides a method for detecting spots on the surface of a rearview mirror of an automobile. The spots on the surface of the rearview mirror include pockmarks and black spots. A bar-shaped light source, forming a bright field area and a dark field area on the mirror surface, and the bright field area and the dark field area are alternately distributed; moving the mirror surface so that the bright field area and the dark field area alternate transforming; photographing the specular surface; identifying pits in the dark field area; identifying black spots in the bright field area.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for detecting spots on the surface of an automobile rearview mirror. Background technique [0002] With the increasing automation of the manufacturing industry and the increasingly stringent requirements of modern manufacturing on product surface appearance, size, and performance, the traditional manual naked eye inspection to achieve quality process control during product production has been unable to meet high-precision, high-precision, Real-time automated production requirements, therefore, how to realize fast, efficient, high-precision, real-time on-line monitoring of surface spots has gradually become a difficult problem for modern production enterprises. [0003] Especially in the detection of spots on the surface of automobile rearview mirrors, due to the variety of spots on the surface of rearview mirrors, the reflection of visible light on the mirror su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95G06T7/00G06T7/136
CPCG01N21/95G06T7/0002G06T7/136G01N2021/9511G06T2207/10004G06T2207/30268
Inventor 尹衍航宋新萍张伟伟
Owner SHANGHAI UNIV OF ENG SCI