Machine vision algorithm for appearance inspection

A technology of appearance inspection and machine vision, applied in the direction of instruments, computing, computer parts, etc., can solve the problems of large amount of calculation, abandonment, low accuracy of target area, etc., to achieve high generalization, high accuracy and high precision Effect

Active Publication Date: 2020-10-02
SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP +2
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Problems solved by technology

[0007] The above technical solution has the following problems and disadvantages: 1) The template matching method locates the cigarette detection area, which requires a large amount of calculation, and the accuracy of selecting the target area is low under complex background conditions, and it is difficult to keep the relative position of the cigarette in the selec

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  • Machine vision algorithm for appearance inspection
  • Machine vision algorithm for appearance inspection
  • Machine vision algorithm for appearance inspection

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Embodiment Construction

[0067] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0068] combine figure 1 , the present invention provides a kind of machine vision algorithm that is used for appearance inspection, is used for the outer surface appearance inspection of smooth, opaque, main body color consistent product, it is characterized in that, comprises the following steps:

[0069] Step 1: Input the product picture of a normal and intact product as the standard template picture, and give the area range...

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Abstract

The invention relates to a machine vision algorithm for appearance detection. The machine vision algorithm is used for appearance detection of the outer surface of a product which is smooth, opaque and consistent in main body color. The algorithm provided by the invention has the characteristics of high generalization, high accuracy and sustainable optimization, and can process two main requirements: 1) detecting the color of a product; 2) detecting the appearance of the product. According to the method, multiple algorithms are integrated, the accuracy is high, parameters can be optimized by using historical data, the SIFT image matching algorithm has excellent performance, the generalization is high, and the method is suitable for products with consistent main body colors.

Description

technical field [0001] The invention relates to a machine vision algorithm for appearance detection, which can be used for the appearance detection of the outer surface of products with smooth, opaque and consistent main color. Background technique [0002] Machine vision technology is mainly a recognition technology based on product feature information. It collects images or video streams containing products through cameras or cameras, and automatically detects and tracks them in the images, and then characterizes the detected products. A series of related technologies for comparison. [0003] At present, in China, manual inspection is still used for the appearance inspection of most smooth, opaque, and consistent main color products. [0004] At present, there are related patents related to the hardware design of appearance inspection and other products or general appearance inspection methods, but there is no machine vision inspection algorithm with strong generality. F...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06K9/32G06K9/46G06K9/62
CPCG06T7/0002G06V10/25G06V10/56G06V10/462G06F18/22
Inventor 程睿远顾锴琚长江张建安杜鹏飞陈纪勇李倩
Owner SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
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