Road sign recognition by one fixation of space-variant sensor.

Gao, Xiaohong W. ORCID: https://orcid.org/0000-0002-8103-6624, Shaposhnikov, D. G., Podladchikova, L. N., Golovan, Alexander, Shevtsova, Natalia and Hong, K. (2002) Road sign recognition by one fixation of space-variant sensor. In: Vision Interface ’2002: proceedings. Gorodnich, D. D. and Zhang, H., eds. Canadian Image Processing and Pattern Recognition Society, Quebec. . [Book Section]

Abstract

Biologically plausible model approach to solve the task of traffic sign detection and recognition invariantly to variable viewing conditions and results of model testing with British real world traffic signs are presented. The developed model for sign description and recognition by one fixation of a space-variant sensor simulates some mechanisms of the real visual system such as space-variant representation of information from the centre (the fovea) to the periphery of the retina, neuronal orientation selectivity, and context encoding of information. After consequent procedures of colour segmentation of initial real world images, classification according to sign colours and external forms, and determination of the centre of the inner informative sign part, 85% of potential traffic sign images were correctly identified for various weather conditions by one fixation of the developed space-variant sensor.

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