Optical correlators in texture analysis

Veijo Honkonen; Timo Jaeaeskelaeinen; Jussi P. S. Parkkinen

doi:10.1117/12.49695

1 November 1991 Optical correlators in texture analysis

Veijo Honkonen, Timo Jaeaeskelaeinen, Jussi P. S. Parkkinen

Proceedings Volume 1564, Optical Information Processing Systems and Architectures III; (1991) https://doi.org/10.1117/12.49695
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Texture plays an important role in vision research and in many practical applications. Texture research has been wide in applied sciences and many methods for texture analysis have been proposed. To recognize texture a real-time modern optics may offer new tools, which is the theme of the present paper. We investigate the applicability of complex matched filter and phase-only filters to recognize textures. Natural textures of the Brodatz collection were used as the test samples. We show that optical correlators are useful in texture recognition. The recognition is based on the peak-to-correlation ratio, which is much higher for phase-only filters than for matched filters. However, if we consider output signal-to-noise ratio, the matched filter remains valuable.

Citation Download Citation

Veijo Honkonen, Timo Jaeaeskelaeinen, and Jussi P. S. Parkkinen "Optical correlators in texture analysis", Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); https://doi.org/10.1117/12.49695

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