基于坐标旋转及顺序预测的水表刻度检测方法  

Water Meter Scale Detection Method Based on Coordinate Rotation and Sequence Prediction

作　　者：逯港 陈黎[1,2] LU Gang;CHEN Li(School of Computer Science and Technology,Wuhan University of Science and Technology,Wuhan 430065;Hubei Provincial Key Laboratory of Intelligent Information Processing and Real-time Industrial System,Wuhan 430065)

机构地区：[1]武汉科技大学计算机科学与技术学院,武汉430065 [2]智能信息处理与实时工业系统湖北省重点实验室,武汉430065

出　　处：《计算机与数字工程》2025年第3期760-765,802,共7页Computer & Digital Engineering

基　　金：国家自然科学基金项目(编号:61773297)资助。

摘　　要：在针对基于指针方向和刻度定位的仪表读数识别的方法中,需要对刻度指向的数字进行检测识别;在许多场景中,仪表盘存在倾斜或者刻度数字被遮挡的情况。因此,论文设计了一种基于极坐标旋转及顺序预测定位的水表刻度数字检测方法,能够有效检测各种倾斜角度的刻度数字;针对表盘上刻度数字被遮挡的情况,论文基于顺序预测定位方法,能够在表盘上预测出被遮挡数字及其位置。实验结果表明,该方法应用在倾斜刻度数字的检测中,准确率达到99.8%,召回率达到100%,mAP@0.5达到99.5%,mAP@0.5:0.95为86.7%。In the method of meter reading recognition based on pointer direction and scale positioning,the number pointed by the scale needs to be detected and recognized.In many scenes,the dashboard is tilted or the scale numbers are blocked.Therefore,this paper designs a water meter scale number detection method based on polar coordinate rotation and sequential prediction positioning,which can effectively detect the scale numbers of various tilt angles.Aiming at the situation that the scale numbers on the dial are blocked,this paper can predict the blocked numbers and their positions on the dial based on the sequential prediction positioning method.The experimental results show that the accuracy of this method is 99.8%and the recall rate is 100%,mAP@0.5 Up to 99.5%,mAP@0.5:0.95 is 86.7%.

关 键 词：指针式仪表 数字检测 顺序预测 极坐标旋转 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]