计算机工程与科学2017，Vol.39Issue(7)：1309-1316,8.DOI:10.3969/j.issn.1007-130X.2017.07.016
基于扫描线处理的指针式仪表快速读数算法
A fast reading algorithm for pointer instrument based on scan line processing
摘要
Abstract
Concerning the illumination changes and the low speed of pointer instrument detection which make it difficult for the existing algorithms to achieve readings quickly and accurately,we propose a new algorithm to solve these problems based on scan line processing.The new algorithm firstly extracts the illumination invariant image by single scale Retinex.In order to reduce the pointer detection time,we adopt the scan line processing to extract the characteristic pixels for Hough transform.Finally,we use the dual threshold Hough transform to detect straight lines.Experimental results show that the proposed algorithm cannot only solve the problem of illumination changes and the low speed of readings,but also has high precision and adjustable speed.关键词
指针式仪表自动读数/单尺度Retinex/扫描线/Hough变换Key words
automatic reading of pointer instrument/single scale Retinex/scan line/Hough transform分类
信息技术与安全科学引用本文复制引用
孔锐,揭英达,程霖..基于扫描线处理的指针式仪表快速读数算法[J].计算机工程与科学,2017,39(7):1309-1316,8.基金项目
广东省学科建设专项资金项目-科技创新(2013KJCX0023) （2013KJCX0023）
广东省高等教育教学改革项目(GDJG20141029) （GDJG20141029）
珠海市公共技术服务平台科技项目(2013D0501990013) （2013D0501990013）
