The Method of Using Computer to Detect Fabric Defects

Abstract

The invention provides a method for detecting fabric defects by using a computer. The method irradiates coded light information to the fabric to be tested, calculates the phase information of each point of the fabric to be tested, and then obtains the spatial coordinate information of the fabric to be tested, and repeats the Construct a three-dimensional image; then judge whether there is a defect and the type of defect according to whether there is a curvature discontinuity in the reconstructed three-dimensional image and whether the x, y, and h coordinates change uniformly; finally, it is transmitted to a remote terminal for manual verification. The method of the present invention is not restricted by the background color of the fabric and the measurement environment; it can be applied not only to the detection of defects in plain fabrics, but also to the detection of complex background color fabrics; even in the case of poor optical lighting environment, it can obtain Better defect detection accuracy.

Description

technical field [0001] The invention belongs to the field of textile industry, and in particular relates to a method for detecting fabric defects by using a computer. technical background: [0002] The textile industry is a traditional pillar industry of my country's national economy and an important livelihood industry. It is also an industry with obvious comparative advantages in international competition. It plays an important role in prospering the market, expanding exports, creating jobs, increasing farmers' income, and promoting urbanization. To speed up the revitalization of the textile industry, we must focus on independent innovation, technological transformation, elimination of backwardness, and optimization of layout, and continuously promote structural adjustment and industrial upgrading, thereby transforming my country's textile industry from large to strong. Since China's entry into WTO, my country's textile exports have been competing with foreign products at ...

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Problems solved by technology

[0004] The above method has laid a foundation for the application of computer vision in fabric detection, but the above detection methods are all based on two-dimensional image processing, and there are many problems: (1) it is difficult to solve the image interference caused by "ambient light background light change"; (2) Most fabric defect detection methods can only be applied to the detection of plain fabric defects, and it is difficult to apply to the detection of complex background color fabrics; (3) The overall defect detection accuracy is not high

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