Phase-Only Rotation Invariant Correlation Using Synthesized Phase Objects
We present a development of the method of synthesized phase objects (SPO-method) (P. V. Yezhov, et al. Opt. Exp. 20, 29854 (2012)) for the phase-only rotation invariant pattern recognition. It has been performed a comparison of correlation signals for a set of amplitude objects
under their rotation by using the standard and SPO methods, by applying the Fourier-Mellin transformation. The results of both calculation and optical experiments carried out using an optical-digital correlator with SLM in the Fourier plane have been presented.
Keywords: Fourier-Mellin Transformation; Hybrid Optical-Digital 4F-Correlator; Iterative Fourier-Transform Algorithm; Phase-Only Rotation Invariant Pattern Recognition; Synthesized Phase Objects
Document Type: Research Article
Affiliations: 1: Institute of Physics of the NAS of Ukraine, Kyiv 03028, Ukraine 2: Department of Photonic Engineering, College of Engineering, Chosun University, Gwangju 61452, Korea
Publication date: 01 February 2019
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