Abstract
In this paper, we introduce a license plate recognition system based on a new image retrieval method. In this system, a plate image is dealt with a pattern, and the significant image feature of the pattern is used for the license plate retrieval, so that it is not necessary to recognize the each digit area and to distinguish each digit by using neural networks and/or fuzzy systems in traditional systems. The significant multiresolution information on the wavelet decomposed plate images are stored in advance as a database, and most similar image to the query is retrieved. Our system has an advantage to permit a position gap and/or a pattern fluctuation of the license plate by utilizing the multiresolution information of wavelet decomposition.
