Nonerror binary phase-only filter (BPOF) implementation in optical pattern recognition

Rutong Hong; Qun Zhang Li; Wen Bin Zhu; Xu Luo

doi:10.1117/12.141948

23 March 1993 Nonerror binary phase-only filter (BPOF) implementation in optical pattern recognition

Rutong Hong, Qun Zhang Li, Wen Bin Zhu, Xu Luo

Proceedings Volume 1822, Optics, Illumination, and Image Sensing for Machine Vision VII; (1993) https://doi.org/10.1117/12.141948
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

A non-error Synthetic Discriminant Function Binary Phase-only Filter (SDFBPOF) is constructed with digital synthesis method and a corrected FFT algorithm for in-plane rotation, scale, shift distortion invariant optical pattern recognition (OPR). The computer simulation of correlation shows that this method can obtain very high S/N, sharp correlation peak and low sidelobe compared with the common phase quantized SDFBPOF. The construction of this BPOF is simplified. The space bandwidth (SBW) is decreased by using the corrected FFT algorithm with faster speed than DFT, so it could be made easily and precisely using modern VLSI technology or some programmable Spatial Light Modulators (SLM).

Citation Download Citation

Rutong Hong, Qun Zhang Li, Wen Bin Zhu, and Xu Luo "Nonerror binary phase-only filter (BPOF) implementation in optical pattern recognition", Proc. SPIE 1822, Optics, Illumination, and Image Sensing for Machine Vision VII, (23 March 1993); https://doi.org/10.1117/12.141948

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KEYWORDS

Fourier transforms

Phase only filters

Binary data

Computer simulations

Distortion

Optical pattern recognition

Detection and tracking algorithms

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