Article ID Journal Published Year Pages File Type
1534857 Optics Communications 2014 6 Pages PDF
Abstract
Optical correlators (OCs) have a wide range of applications in the field of pattern recognition. We present a type of integrated zigzag Vander Lugt correlator (IZVLC). The IZVLC incorporates two Fourier transform lenses and one spatial light modulator (SLM) as a programmable filter, which can effectively miniaturize the volume of OCs and hence achieve better optical pattern recognition. In order to precisely recognize distortion targets, an optimal trade-off synthetic discriminant filter (OTSDF) is programmed on the SLM of the IZVLC. Both the simulative and experimental results have shown that the IZVLC can effectively identify distortion targets within a rotation angle of ±π/3 and a scaling range of 0.6-1.6.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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