基于OpenCV模拟仪表指针读数识别系统设计.doc

基于OpenCV的模拟仪表指针读数识别 系统设计 学 院 自动化学院 专 业 班 级 学 号 姓 名 指导教师 负责教师 沈阳航空2015年6月摘 要 关键词：nalog meter pointer reading recognition system design based on OpenCV Abstract With the development of the times, for various types of industrial automation and machine intelligence level requirements continue to increase, to achieve this era requires, digital image processing technology has been gradually introduced into the power system automation in the past, becoming an important part of increasingly at the same time . In the power industry, the pointer instrument still important due to its high accuracy, easy to read, adjustable, etc. occupy large proportion. However, due to pointer instrument display is different from the digital signals,it can’t be read by a computer. When the data recording and pointer calibration are conducted by human-readable way, inevitable due to human and other external factors, leading to read accuracy is not high, large fluctuations, which greatly reduces the accuracy of the data record. Therefore, how to use computer graphics technology for automatic interpretation of the pointer instrument has become a pressing issue. Especially during the reading correction. In this thesis, we are talk about a computer image capture and its associated technology, based on OpenCV analog pointer instrument readings recognition system. Firstly CMOS camera reads the meter dial pointer image, the next image pre-processing of the acquired image in order to better identify pointer read.Finally, edge detection and Hough transform and the relevant angle algorithm, pointer instrument readings identification and display records. Based on the above algorithm the use of the Microsoft VC ++ 6.0 development platform and a visual library OpenCV1.0 joint programming approach, while the design of the overall software pointer meter readings automatic identification system to achieve function of recognition pointer recognize, during experiments, reaches to the inniti