The Method of Using Computer to Detect Fabric Defects

A computer and fabric technology, applied in the field of textile industry, can solve the problems of low defect detection accuracy, difficult to solve image interference, difficult to apply complex background color fabric detection, etc., to achieve the effect of good defect detection accuracy

Active Publication Date: 2017-09-12
张莹莹
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • The Method of Using Computer to Detect Fabric Defects
  • The Method of Using Computer to Detect Fabric Defects
  • The Method of Using Computer to Detect Fabric Defects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] A high-brightness projector is used to irradiate coded light information, which may be moiré fringes, onto the surface of the fabric to be tested.

[0033] The coded light information is moved three times, and the coded light information is irradiated onto the surface of the fabric to be tested three times from three different angles to obtain three coded images reflected by the surface of the fabric to be tested.

[0034] Acquisition of coded images reflected on the surface of the fabric to be tested is achieved by an image acquisition system. The image acquisition system includes a CCD camera and a computer connected with the camera. The CCD camera collects the image of the surface of the fabric to be tested from another angle, and then transmits it to the computer for data calculation.

[0035] Calculate the space coordinates (x, y, h) of any point (x, y) on the space image of the fabric to be tested according to the preset program. The pre-set programs are calcula...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95G06T7/00
Inventor 张莹莹邵琳孙文
Owner 张莹莹
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap