Optical experiments on kth-law nonlinearly transformed matched filters

Bahram Javidi; Guanshen Zhang

doi:10.1117/12.140907

12 January 1993 Optical experiments on k^th-law nonlinearly transformed matched filters

Bahram Javidi, Guanshen Zhang

Proceedings Volume 1772, Optical Information Processing Systems and Architectures IV; (1993) https://doi.org/10.1117/12.140907
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Experiments on k^th law nonlinearly transformed matched filters for optical correlation are provided. Experimental results for the images tested indicate that nonlinear matched filters produce good correlation performance in the terms of correlation peak intensity, signal-to- noise ratio, and peak-to-sidelobe ratio. The sensitivity of the k^th law nonlinearly transformed filter to rotational changes of the input signal is investigated. It is shown that for the images presented here, up to a certain degree of input signal rotation, a highly nonlinearly transformed matched filter may produce a larger peak-to-sidelobe ratio than a conventional matched filter.

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Bahram Javidi and Guanshen Zhang "Optical experiments on k^th-law nonlinearly transformed matched filters", Proc. SPIE 1772, Optical Information Processing Systems and Architectures IV, (12 January 1993); https://doi.org/10.1117/12.140907

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KEYWORDS

Nonlinear filtering

Signal to noise ratio

Electronic filtering

Image filtering

Interference (communication)

Optical filters

Quantization

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