Invariant recognition of traffic signs
Dataset
Gao, X., Shaposhnikov, D., Podladchikova, L., Shevtsova, N. and Golovan, A. 2002. Invariant recognition of traffic signs.
Title | Invariant recognition of traffic signs |
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Authors | Gao, X., Shaposhnikov, D., Podladchikova, L., Shevtsova, N. and Golovan, A. |
Description | A biologically plausible algorithms and model for traffic sign recognition invariantly with respect to variable viewing conditions are presented. They simulate several key mechanisms of biological vision, such as space-variant representation of information (reduction in resolution from the fovea to the retinal periphery), orientation selectivity of the cortical neuron responses, search for the most informative image regions, and context encoding of information. Traffic sign processing procedures include colour segmentation, classification according to sign contour colour and shape, and finding the sign centre for single positioning of a space-variant sensor window. It has been revealed that recognition rate is relatively high for signs under artificial transformations that reproduce possible sign disturbances in real road conditions (up to 50% for noise level, 50 meters for distances to signs, and 5° for perspective disturbances). As compared to others, recognition rate for red triangular signs sharply decreases at these distortion levels. While processing the British real world traffic signs (n=98) obtained under various environmental conditions, the recognition rate is equal to 0.95. |
Research Group | Artificial Intelligence group |
First publication date | |
2002 | |
Publication process dates | |
Deposited | 01 Apr 2009 |
Output status | Published |
Language | English |
https://repository.mdx.ac.uk/item/816v2
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