FPGA implementation of license plate detection and recognition

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2013

Öğrenci: SERAP SARIKAVAK

Danışman: GÖZDE AKAR

Özet:

In this thesis, license plate detection and recognition system based on Gabor approach is proposed and recognition part of the system is implemented on the FPGA platform. The purpose of this project is to develop a system that extracts license plate region from image, taken from proposed distance, and recognizes the characters on this region. For this project, techniques on the literature are investigated and some of them are implemented. In the localization of the plate region, color space conversion, image enhancement, binarization, connected component labeling, Gabor filters and morphological operations are used. To segment the characters on the plate region, notch detection algorithm which uses the vertical projection of the plate region and morphological operations are used. Finally, characters are recognized by the feature-based matching algorithm. Character segmentation and character recognition parts of the proposed algorithm are implemented in the Altera Cyclone IV E FPGA which has an embedded soft core processor. To implement the algorithm, FPGA logic collaborates with the software application of the processor.