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High-dynamic imaging detection method and system for textile fabric flaws

A technology for textile fabrics and imaging detection, which is applied to the components of TV systems, optical testing for defects/defects, and image communication, etc. The cost of cloth inspection, the improvement of accuracy, and the effect of easy re-inspection and trimming

Pending Publication Date: 2021-01-12
巴中职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a high dynamic imaging detection method and system for textile fabric defects, to solve defects such as camera shake during exposure time and scene changes caused by long sequence image shooting intervals during textile fabric detection, which lead to defect detection The problem of inaccurate structure

Method used

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  • High-dynamic imaging detection method and system for textile fabric flaws
  • High-dynamic imaging detection method and system for textile fabric flaws
  • High-dynamic imaging detection method and system for textile fabric flaws

Examples

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Embodiment 1

[0047] Example 1 please refer to figure 1 An embodiment shown is a high dynamic imaging detection method for textile fabric defects, including a mechanical pulling and cleaning module 1, an image acquisition module 2, a data processing and imaging module 3, a defect image database module 4, and an online Contrast and recording module 5, defect marking module 6 and control module 7, wherein: the central processing unit of the control module 7 controls and coordinates the remaining modules according to the following steps to complete high dynamic imaging, cloth defect point contrast detection and mechanical marking of defects;

[0048] S1. The mechanical stretching and cloth cleaning module 1: flatten the textile fabric roll through the stretching machine, and clean the impurities on the surface of the fabric by static electricity removal and cleaning equipment during the fabric transmission process, to obtain a clean surface fabric;

[0049] S2. The image acquisition module 2:...

Embodiment 2

[0056] On the basis of the above-mentioned embodiment 1, please refer to the embodiment 2 figure 2 with image 3 An embodiment shown: the image acquisition module 2 is composed of a CMOS image sensor 22 and a conventional lens 21, an optical camera, and a magnesium light MT9N001 type COMS image sensor+ABF-F121212MP megapixel high-definition infrared monitoring lens for dynamic image formation The digital signal is sent to the data processing and imaging module 3 .

[0057] Described data processing and imaging module 3 are composed of image processor 31, SDRAM controller 32, Nios II soft-core processor 33, sensor configuration device 34, SDRAM-0 35, SDRAM-1 36, VGA display 37, PIO 38, network transmission interface 39 and SOPC high dynamic imaging system 40, wherein:

[0058] Described image processor 31, described SDRAM controller 32 and described sensor configurator 34 form FPGA control logic circuit 8, and in described FPGA control logic circuit 8, embed NiosII soft-core...

Embodiment 5

[0074] Example 5 please refer to Figure 4 A high dynamic imaging detection system for textile fabric defects is shown, including a mechanical pulling and cleaning module 1, an image acquisition module 2, a data processing and imaging module 3, a defect image database module 4, and an online comparison and recording module 5. The defect marking module 6 and the control module 7, wherein: the central processing unit of the control module 7 controls each module and coordinates the work of each module to complete high dynamic imaging, cloth defect point contrast detection and defect point mechanical marking;

[0075] The mechanical stretching and cloth cleaning module 1: flatten the roll of textile fabric through the stretching machine, and clean the impurities on the surface of the fabric by static electricity removal and cleaning equipment during the fabric transmission process, to obtain a clean surface cloth;

[0076] The image acquisition module 2: collect images of cloth wi...

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Abstract

The invention discloses a high-dynamic imaging detection method and system for textile fabric flaws, and the detection system is combined with a high-dynamic processing method, and a low-cost CMOS image sensor cooperates with an FPGA control logic circuit so a high-dynamic range image (HDR) can be collected in the movement process of textile fabric, thereby effectively solving the defects of scenechange and the like caused by camera shaking during exposure time and long shooting interval of sequence images during cloth inspection (namely flaw detection) and inaccurate flaw detection structure; in addition, the dynamic imaging system carries the low-cost CMOS image sensor so that high-dynamic image acquisition is met, the cloth inspection cost is effectively reduced, and the accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of textile fabric detection equipment, in particular to a high dynamic imaging detection method and system for textile fabric defects. Background technique [0002] The textile industry has strict requirements on the quality of textiles. Among them, the flaws on the surface of textiles directly affect the price of the final product, and the detection of surface flaws is of great significance to the quality management, cost control and enhancement of product competitiveness of enterprises. [0003] In recent years, the method of manual cloth inspection is still the main method of most textile enterprises. Since cloth inspectors have to work on the production line for up to 12 hours a day, and watch the high-speed moving cloth for a long time every day, the visual system will be greatly affected. s damage. [0004] Manual cloth inspection is limited by human physiological characteristics, and the detection r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/95H04N5/235
CPCG01N21/95H04N23/741
Inventor 苟洁
Owner 巴中职业技术学院
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