Detecting and positioning method of cotton foreign fibers

A technology of heterosexual fiber and positioning method, which is applied in the direction of optical testing for defects/defects, and can solve problems such as complex calculation methods and low detection accuracy

Active Publication Date: 2013-08-07
建湖上冈产业园服务有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for detecting and locating cotton foreign

Method used

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  • Detecting and positioning method of cotton foreign fibers
  • Detecting and positioning method of cotton foreign fibers
  • Detecting and positioning method of cotton foreign fibers

Examples

Experimental program
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Effect test

Embodiment 1

[0052] In the detection and positioning process of an actual cotton foreign fiber, the ordinary fluorescent light source and linear array color CCD camera are used to collect the color image of the foreign fiber; colored heterosexual fiber images.

[0053] Convert the color images of heterosexual fibers collected under ordinary fluorescent light sources from RGB color space to Lab color space according to formula (1) and formula (2), and set the parameter value T 1 =1, T 2 =1, T 3 =8, if B-R>T 1 And bT 2 And aT 3 And R-B>T 3 And a>130, it is judged as blue foreign fiber point.

[0054]Then, the cotton-colored foreign fiber images containing fluorescent whitening agent collected under the ultraviolet fluorescent light source are detected in the RGB color space, and T 4 =6, then in the RGB color space, if B-R>T 4 , then it is judged that the point is a heterosexual fiber point.

[0055] Finally, for the detected foreign fibers, the Blob analysis method is used to mark t...

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Abstract

The invention discloses a detecting and positioning method of cotton foreign fibers. The method comprises the following steps: respectively adopting a common fluorescent light source, an ultraviolet fluorescent light source and a twin-line-array CCD camera to obtain cotton foreign fiber color images; carrying out secondary cutting of images acquired under the common fluorescent light source in an RGB and Lab color space, and detecting foreign fibers having different colors; detecting foreign fibers containing a fluorescent whitening agent of images acquired by the ultraviolet fluorescent light source in the RGB color space; and labeling the detected foreign fibers through adopting a Blob analysis process, calculating to obtain a center coordinate, partitioning for opening the spray valves of corresponding partitions, and rejecting the foreign fibers. The method has the advantages of simple calculation, fast calculation speed, and suitableness for the online detection system of the cotton foreign fibers, and can be used for rapidly detecting and accurately positioning the foreign fibers contained in the cotton.

Description

technical field [0001] The invention relates to the technical field of machine vision, and relates to a method for detecting and locating cotton foreign fibers. Background technique [0002] Cotton is often mixed with foreign fibers, such as silk, hemp, paper, etc. If it is not detected in time, it will seriously affect the quality of subsequent textiles. In textile enterprises, manual sorting is currently used to sort foreign fibers. The detection method has the disadvantages of complex detection method and low detection accuracy, and it is difficult to be applied to the actual online detection system. Contents of the invention [0003] The purpose of the present invention is to provide a method for detecting and locating cotton foreign fibers to solve the problems of complicated calculation methods and low detection accuracy in the existing methods. [0004] The technical solution adopted in the present invention is a method for detecting and locating cotton foreign fib...

Claims

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Application Information

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IPC IPC(8): G01N21/88
Inventor 张二虎孟凯陈亚军
Owner 建湖上冈产业园服务有限公司
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