A Method of Automatic Indication Recognition for a Multi-Pointer Meter by Image Processing and Recognizing
Jing Ren-kun · Journal of Wuhan Automotive Polytechnic University · 2003
A method of automatic indication recognizing for a multi-pointer meter such as a water meter by image processing and recognizing is presented. The principle and step of the automatic indication recognition meter are described. Image analysis and recognition algorithms, such as piece wise-linear gray level transformation and Hough transformation, and the template matching method, are used synthetically to automatically take out the direction and position of the pointers on the meter panel and to determine the meter's indication from the image of the meter panel. It is proven to be effective to recognize the water meter's indication by this method. The result indicates that this method is reasonable and applicable.