【作者】 赵军； 冯海萍； 孔明；

【Author】 ZHAO Jun,FENG Hai-ping,KONG Ming (College of Metrological Technology and Engineering, China Ji Liang University, Hangzhou 310018,China)

【机构】 计量技术工程分院中国计量学院；

【摘要】 针对指针式仪表表盘图像的特征,使用计算机视觉技术和数字图像处理方法设计并实现了指针式仪表的自动检定系统。使用图像差影法和自适应阈值分割算法,进行预处理;提出区域分割方法,对表盘图像进行分块处理,仅对提取到的表盘图像中的有效信息块进行处理,不对其他区域处理,极大地减少了计算量,有效提高了处理速度。提出的区域分割方法已经在指针式仪表自动检定系统中得到应用,实现了指针式仪表检定的智能化、自动化、快速化。更多还原

【Abstract】 Against the image characteristics of dial gauges, an automatic detection system of dial gauges is designed and implemented by using the technology of computer vision technology and digital image processing methods. Used improved image subtraction method and adaptive threshold segmentation method in previous process; Proposed a new method named as region-segmentation, to partition the dial image, only process the useful blocks of the dial image, and don’t process the other area, this method reduced the computation amount greatly, and improved the processing speed effectively. This method has been applied in the automatic detection system of dial gauges, which makes it possible for the detection of dial gauges to be finished intelligent, automatically and rapidly.更多还原