沈阳工业大学学报2011，Vol.33Issue(5)：550-555,6.
基于图像识别的多指针仪表自动读数方法
Image recognition based automatic reading method for multi-pointer meter
摘要
Abstract
Aiming at the recognition of pointer reading for multi-pointer meter,a positioning method based on chromatism transformation as well as an automatic recognizing and reading method based on structural characteristics of a dial were proposed.The luminance and red color difference（LRCD） transform,mathematical morphology based processing method and p-tile method were used to accomplish the selection of effective area and the pointer positioning of water meter.According to such features as the angle between the linking line of dial center to pointer rotatory center and the zero graduation mark of sub-dial,the angle between the zero graduation mark of sub-dial and the pointer directed line was calculated,and furthermore,the pointer reading was recognized and read.The experimental results show that the proposed algorithm for positioning and recognizing has calculating simpleness and higher accuracy,and can avoid the effect of random angle tilt of dial on reading recognition algorithms.关键词
自动抄表/指针读数/图像识别/LRCD变换/数学形态学/指针定位/倾斜校正/回转中心Key words
automatic meter reading/pointer reading/image recognition/LRCD transform/mathematical morphology/pointer positioning/tilt correction/rotatory center分类
信息技术与安全科学引用本文复制引用
张志佳,李媛,周纯冰,苑玮琦..基于图像识别的多指针仪表自动读数方法[J].沈阳工业大学学报,2011,33(5):550-555,6.基金项目
辽宁省自然科学基金资助项目 （）
