潘成成,卢泉,胡立坤,李勤.基于颜色分离与形态特征分析的保护压板定位及状态识别研究[J].电测与仪表,2023,60(4):71-77. panchengcheng,luquan,hulikun,liqin.Platen location and status recognition based on image processing and morphological features analysis[J].Electrical Measurement & Instrumentation,2023,60(4):71-77.
基于颜色分离与形态特征分析的保护压板定位及状态识别研究
Platen location and status recognition based on image processing and morphological features analysis
In order to improve the level of intelligent identification of platen with dense layout and various colors in substations, a method of protection platen location and state identification based on color difference method and morphological features analysis is proposed. In this method, homomorphic filter enhancement and perspective correction are carried out for the collected platen image; Secondly, according to the color characteristics of the platen image, RGB three component color difference method is used to segment the effective platen region in combination with morphological feature analysis; then, the effective platen regions are expanded by the rectangular structural elements to locate the position of each platen region. Finally, according to the morphological characteristics of the rectangular frame and the sum of the gray values of the four connected regions of the center of gravity of each pressing platen image, the pressing platen on / off state is determined. The test results of the state identification of the protection platen under different shooting angles and different lighting conditions show that the algorithm has the characteristics of high recognition accuracy and good robustness.
