Focus-of-attention mechanism for locating visual defects on rolled steel surfaces

Johannes P.F. D'Haeyer

doi:10.1117/12.138499

18 January 1993 Focus-of-attention mechanism for locating visual defects on rolled steel surfaces

Johannes P.F. D'Haeyer

Proceedings Volume 1713, International Conference on Manufacturing Automation; (1993) https://doi.org/10.1117/12.138499
Event: International Conference on Manufacturing Automation, 1992, Hong Kong, Hong Kong

Abstract

A focus of attention mechanism for locating blob- and edge-like visual steel surfe defects, is proposed in the paper. An inherent problem with focus of attention mechanisms is that weak events arc masked by strong events and pass unnoticed. Solutions to this problem, based on model driven purposive vision, arc discussed. Results obtained with the attention mechanism are illustrated with sample fect images of stretcher streams, roll marks and rust spots.

Citation Download Citation

Johannes P.F. D'Haeyer "Focus-of-attention mechanism for locating visual defects on rolled steel surfaces", Proc. SPIE 1713, International Conference on Manufacturing Automation, (18 January 1993); https://doi.org/10.1117/12.138499

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