摘要
针对目前传统接触测长固有的打滑、精度低等问题,提出一种新的在线测长方法,利用数字图像处理技术对线结构激光器投射到钢绳表面所形成的图像纹理进行分析,并通过改进的Harris角点算法对图像进行匹配,间接获得运动钢绳在线实时长度。实验表明,此方法能有效解决打滑、磨损等问题,同时改进的Harris角点算法能准确的进行图像匹配来间接测量实时长度。
A non-contact length measurement method of the line structured laser of the online wirerope is proposed in response to the disadvantages of the skid and abrasion of the traditional contact length measurement. The method indirectly calculates the real-time length of the online wirerope by analyzing and processing the images of the changing line structured laser projected onto the surface of the online wirerope in the use of the laser imaging system technology,the machine vision inspection technology and the digital image processing technology. Through the improved Harris corner algorithm in image matching,indirect access to online real-time motion rope length. The experiments indicate that the method has the advantage of high accuracy and can highly overcome the disadvantages of the skid and abrasion of the contact in length measurement.
出处
《激光杂志》
北大核心
2015年第8期67-71,共5页
Laser Journal
基金
贵州省教育厅自然科学研究项目(黔教合KY字[2013]194)
贵州省科技厅2014年度工业攻关计划项目(黔教合GY字[2014]3038)
贵州省科技创新人才团队(黔科合人才团队[2014]4013)
关键词
钢绳
在线测长
HARRIS算法
数字图像处理
Wirerope
Online length measurement
Harris algorithm
Digital image processing
