Study on multi-object and multi-type fusion location of vehicle license plate

For the problem of object location under complex environment, especially for unknown object-quantity and object-type, a fusion vehicle license plate(VLP) location method with object authenticity confirmation is presented. Firstly, every region related to multi-type object color is marked in the same gray-level image by multi-value processing. Secondly, vertical edge operator is used to extract object. Thirdly, each kind of possible object is detected by the feature fusing color and edge. At last, object authenticity confirmation method is designed to throw off false alarm. The experiments on 2000 Chinese automobile RGB real color images taken from traffic stations under various conditions show that the correct location rate is over 99 percent.