STUDIES OF THE RECOGNITION OF POINTER ANGLE OF DIAL BASED ON IMAGE PROCESSING
Wang Tie-bin · Proceedings of the CSEE · 2005
The process of the image processing、image recognition technology of pointer position of transformer substation facilities is discussed in detail. The composition of remote digital video monitoring and recognizing system is given. The method of image threshold, image filter, image dilation and image thinning that can be used to the pointer image procession is analyzed and studied. A new concentric cirque seeking method of the pointer angle recognition is brought forward, which is specially fit to running equipments, and the method has the traits of easy calculation method, good real time and low recognition error. Through a great deal of different conditional experiments, this kind of calculation method is proved that it is very valid for the pointer angle recognition.