Abstract
Matrics is a system for recognition of car license plates. It works on standard PC equipment with low-priced capture devices and achieves real-time performance (10 frames per second) with state of the art accuracy: the character error rate is below 1% and the plate error rate is below 3%. The recognition process is divided in two phases: plate localization and plate decoding. The system finds the plate analyzing the connected components of the image after binarization. The decoding algorithm is a Two Level process which uses fast template-based classification techniques in its first stage and optimal segmentation in the second stage. On the whole, the system represents a significant improvement over a previous version which was based on HMM.
Work partially supported by the Ministerio de Educación y Ciencia (TIN2006-12767), the Generalitat Valenciana (GV06/302) and Bancaixa (P1 1B2006-31).
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Marzal, A., Vilar, J.M., Llorens, D., Palazón, V., Martín, J. (2007). Matrics, a Car License Plate Recognition System. In: Martí, J., Benedí, J.M., Mendonça, A.M., Serrat, J. (eds) Pattern Recognition and Image Analysis. IbPRIA 2007. Lecture Notes in Computer Science, vol 4477. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72847-4_37
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DOI: https://doi.org/10.1007/978-3-540-72847-4_37
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