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Product appearance detection method and system

A technology for appearance inspection and product application in the direction of measuring devices, optical testing for flaws/defects, and material analysis through optical means. efficiency effect

Inactive Publication Date: 2019-02-05
BEIJING LUSTER LIGHTTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a product appearance detection method and system to solve the problem of misjudgment in the automatic detection of product appearance

Method used

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  • Product appearance detection method and system
  • Product appearance detection method and system

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Embodiment Construction

[0060] The following describes the present invention in detail, and the features and advantages of the present invention will become more clear and definite along with these descriptions.

[0061]The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0062] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "back", "left" and "right" etc. indicate directions or positions The relationship is an orientation or positional relationship based on the working state of the present invention, which is only for the convenience of describing the present invention and simplifying the descriptio...

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Abstract

The embodiment of the invention discloses a product appearance detection method and system. A mode of detecting, cleaning and detecting again is used, and an interference object and a true defect aredistinguished by detecting and comparing images before and after cleaning. The identification standard of the interference object is in a way that the interference object is changed, such as disappearing and moving before and after cleaning, and the true defect is a target which is not changed before and after cleaning. Whether a tested product is qualified or not by judging the true defect, no artificial participation is needed during the automatic detection process of the whole product appearance, and high accuracy and high efficiency of product appearance detection are ensured.

Description

technical field [0001] The present application relates to the technical field of automatic detection, and in particular to a product appearance detection method and system. Background technique [0002] In the automatic inspection of product appearance, due to the influence of interference such as dirt and dust, the automatic inspection equipment cannot accurately determine whether the appearance of the product is qualified, resulting in misjudgment, which greatly reduces the accuracy of automatic inspection of product appearance. [0003] At present, two methods are mainly adopted to solve the problem of misjudgment of product appearance automatic detection caused by the existence of interference objects. One method is based on the difference in characteristic information between interference objects and real defects. After the automatic inspection of product appearance, information can be extracted through special optical equipment to identify whether the suspected defect ...

Claims

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8851G01N2021/888
Inventor 温日辉姚毅周钟海马增婷徐能王福闯
Owner BEIJING LUSTER LIGHTTECH
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