25 October 1993 Lensless 2D correlation experiments
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Abstract
Converging light is used for a reference beam in constructing the Fourier transform of a filter for use in a 2-D correlator. This eliminates the need for the inverse Fourier transform lens used for performing correlation. We analyze this approach and demonstrate correct performance with optical experiments. Further, we propose a compact optical correlator system that uses only one curved element for both constructing filters and performing correlation.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alastair D. McAulay, Alastair D. McAulay, Junqing Wang, Junqing Wang, "Lensless 2D correlation experiments", Proc. SPIE 1959, Optical Pattern Recognition IV, (25 October 1993); doi: 10.1117/12.160311; https://doi.org/10.1117/12.160311
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