Method for detecting fabric defects by using computer

Abstract

The invention provides a method for detecting fabric defects by using a computer. The method comprises the following steps: irradiating encoding optical information to a to-be-detected fabric, calculating phase information of each point of the to-be-detected fabric to obtain space coordinate information of the to-be-detected fabric, and reconstructing a three-dimensional image; then judging whether the fabric has defects or defect types according to whether the reconstructed three-dimensional image has curvature discontinuous places and whether x, y and h coordinates change uniformly; and finally, transmitting to a remote terminal, and performing manual verification. The method provided by the invention is not restricted by fabric background colors and measurement environments, can be applied to detection of defects of plain color fabrics and detection of colored fabrics with complex backgrounds, and can obtain relatively good defect detection accuracy under the condition that an optical lighting environment is not good.

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 ...

AI Technical Summary

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

Images