数字图形图像处理技术应用于针织物结构参数测量的研究

【作者】 李崎渊；

【导师】 韩其睿；

【作者基本信息】 天津工业大学 ， 计算机应用技术， 2008， 硕士

【摘要】 随着计算机图形图像处理技术应用的不断推广,它开始广泛应用于纺织行业中,改变了纺织行业中传统的手工操作流程,大大提高了工作效率,解决了许多纺织测试中的难题,这也预示着运用数字图像处理技术解决纺织中的一些难题是将来的发展趋势。本论文主要探讨了利用图形图像处理技术进行纬编针织物结构参数的自动测量,利用CCD摄像机获取织物原始图像,根据针织物的特点对织物图像进行预处理,使图像便于后续处理。对预处理后的图像进行小波分解,得到包含织物经纬向信息的图像,然后根据织物纹理的亮度分布规律,采用数据平均的方法去除织物变形和图像录入误差等带来的影响,求出织物结构的像素周期,从而得到织物的横纵向密度;通过对纱线图像进行二值化,求出纱线的平均直径;利用线圈的几何模型,由纱线的直径和织物的密度,实现线圈长度的自动测量。系统在中文Windows环境下,选用MATLAB为平台进行图像处理,同时结合VC++6.0为开发工具,开发出针织物自动测量系统,本课题主要研究了简单组织的密度测量和纬平针组织的线圈长度测量。更多还原

【Abstract】 With the popularization of computer digital image processing technology, it has reached to the textile field. It changes traditional manual operation in the textile industry, highly increasing work efficiency and solving many difficulties. This also predicts that it is a trend that applying Digital Image Processing Technique to resolve actual problems.This dissertation has applied Digital Image Processing Techniques to achieved weft knitted fabric’s parameters. The original fabric images were obtained by using CCD video. According to the characteristic of knitted fabric image, prepare processes were put on the original fabric image, which convenient for the follow step. Then, decompose the processed images with Wavelet decomposition; get the decomposed images include longitude and latitude fabric information. According to the brightness rule of textile texture, adopting the method of data average to get rid of the impact caused by fabric deformation and image deviation, and then get the fabric parameters; as for the diameter of the yarn, we dichotomize the images of the yarn. With the stitch’s geometry model, achieve the automatic measurement of the stitch length based on the density and fabric parameters.Under the Chinese Windows environment, using MATLAB as platen to carry on the image processing, and combining with VC++6.0 as develop tool, investigated Automatic Measurement System for Knitted Fabric. The paper mainly studies the density of the simple pattern and the stitch length of jersey pattern.更多还原