Abstract: A fast method of vehicle logo location was presented, which is based on the symmetrical character in both vehick body area and vehicle logo area. Firstly, the plate and lamp area was located by vertical interval difference and horizontal maximum local projection,and the rough logo area was given by the restriction of geometric position and size of the vehicle plate, vehicle lamp and vehicle logo area. Secondly, by local symmetrical checking and difference horizontal projection in rough logo area, we got a more accurate vehicle logo rectangle area. The experimental results show that the average accuracy of vehicl}logo location is about 94%, and the average time is 21ms.

Key words: Vehicle logo location, Symmetrical checking, Local difference projection