Cotton foreign fiber automatic removing method and system based on image acquisition and DSP (digital signal processing) algorithm

An image acquisition and algorithm technology, applied in fiber processing, textile and papermaking, fiber processing safety devices, etc., can solve the problem of low accuracy of cotton foreign fiber positioning and automatic rejection, etc.

Active Publication Date: 2012-09-12
ZHEJIANG SCI-TECH UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a very high-accuracy cotton guide fiber automatic removal method based on image acquisition

Method used

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  • Cotton foreign fiber automatic removing method and system based on image acquisition and DSP (digital signal processing) algorithm
  • Cotton foreign fiber automatic removing method and system based on image acquisition and DSP (digital signal processing) algorithm
  • Cotton foreign fiber automatic removing method and system based on image acquisition and DSP (digital signal processing) algorithm

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Embodiment 1

[0041] exist image 3 In the shown embodiment, a cotton guide fiber automatic removal system based on image acquisition and DSP algorithm includes a conveying module 1 , an image acquisition module 2 , a foreign fiber identification module 3 and an automatic blow-off module 4 .

[0042] The automatic removal system of cotton foreign fibers based on cotton three-filament image acquisition and DSP algorithm is to loosen and move the cotton after it enters the conveying module 1. During the movement and under the irradiation of ultraviolet light, the color CCD The camera acquires high-quality cotton images one by one. High-quality cotton images can greatly reduce the complexity of image processing and recognition algorithms, and improve the overall performance of the system. The foreign fiber identification module 3 is composed of two parts: one is foreign object identification, which uses image processing technology to accurately identify foreign objects through grayscale trans...

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Abstract

The invention discloses a cotton foreign fiber automatic removing method and a system based on image acquisition and DSP algorithm. The method includes (1) conveying and loosening lint cotton; (2) acquiring a lint cotton image frame by frame, and storing into a corresponding memory unit of DSP (digital signal processing); performing comparison, filtering, image enhancement and binarization treatment on the image data in the memory unit read by the DSP, placing the lint cotton image in a coordinate system having coordinate grid lines, extracting foreign fiber information separated by Otsu algorithm, comparing the foreign fiber image with the grid lines in the coordinate system, and calculating foreign fiber coordinates for precise positioning; and (4) automatically blowing away foreign fiber. The method has improved cotton foreign fiber removal precision and efficiency.

Description

technical field [0001] The present invention relates to the technical field of agricultural mechanization, in particular to a method and system for automatically removing cotton guide fibers based on image acquisition and DSP algorithms. Background technique [0002] Image segmentation is a widely used technology in image processing technology, and plays a very important role in automatic recognition system. Existing image segmentation technology is not accurate in judging foreign objects, and misjudgments are prone to occur. Therefore, it is particularly important to accurately identify and remove foreign matter in the cotton "three silk" automatic removal system. [0003] Because white paper, white polypropylene yarn and other substances containing whitening agents will excite bright fluorescence at 400 nm to 500 nm under the irradiation of ultraviolet light with a wavelength of 200 nm to 400 nm, while cotton fiber directly absorbs ultraviolet light. Therefore, under the...

Claims

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Application Information

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IPC IPC(8): D01G31/00
Inventor 黄静章涵博
Owner ZHEJIANG SCI-TECH UNIV
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