Method for acquiring and processing enlarged images of fabrics based on digital signal processor (DSP)
A technology for image magnification and image processing, which is used in measurement devices, material analysis by optical means, instruments, etc., and can solve the problem that the image acquisition method cannot meet the detection requirements.
Inactive Publication Date: 2013-01-30
JIANGNAN UNIV
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[0003] Fabric-related detection problems generally require accuracy to the yarn level, and traditional image acquisition methods cannot meet the detection requirements. Therefore, the fabric must first be enlarged before collecting images, so that the yarns in the collected fabric images are clearly identifiable
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[0013] figure 2 The present invention relates to a specific example. The assembly of the magnifying lens is realized through the combination of optical accessories, and the magnifying lens is connected with the CCD camera to collect the reflected image of the fabric surface, and the collected fabric image is input to the DSP chip through the data connection serial port Among them, the DM642 chip is used in this example. According to the requirements of fabric detection, after the fabric image is processed in the chip, the processing result is output to a dedicated color LCD for display.
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The invention relates to a method for acquiring and processing enlarged images of fabrics based on a digital signal processor (DSP) and belongs to the field of novel textile testing. In the textile industry, most detection depends on vision of operators. With the development of image process technology, particularly the advancement of embedded machine vision, automatic detection becomes possible. Most detection related to the fabrics is required to be accurate to yarn sizes, the magnifying power of the conventional image acquisition method cannot meet the requirements, and images cannot meet the detection requirements. The invention discloses an enlarging-lens-based digital image acquisition method. According to the method, a digital camera is matched with an enlarging lens to acquire the enlarged images of the fabrics, and the acquired signals are input into a DSP chip to ensure that fabric images are processed and displayed on a special liquid crystal display (LCD). By the method, the enlarged images of the fabrics can be acquired, processed and displayed, and a method for solving related fabric detection problems is provided.
Description
technical field [0001] The invention relates to a method for collecting, processing and displaying enlarged images of fabrics, which belongs to the field of detection of new textile materials, and specifically relates to the technology of collecting enlarged images and the technology of embedded machine vision processing. Background technique [0002] In recent years, with the development of image processing technology, its application range has become more and more extensive. In the textile industry, many fabric-related inspections rely on the inspector's vision, such as the inspection of fabric structural parameters, the evaluation of fabric pilling grades, etc. The development of image processing technology makes the above problems expected to be solved through automated methods. [0003] Fabric-related detection problems generally require accuracy to the yarn level, and traditional image acquisition methods cannot meet the detection requirements. Therefore, the fabric mu...
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
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IPC IPC(8): G01N21/84
Inventor 潘如如刘基宏高卫东王鸿博朱博
Owner JIANGNAN UNIV