1 January 2002 Comparisons of performances for brightness changes of target scenes between nonlinear joint transform correlators that use input images with pure amplitude, pure phase, and complex data
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Abstract
The performance of two nonlinear joint transform correlators?the binary subtracted joint transform correlator and the photorefractive-based subtracted joint transform correlator, has been tested by computer simulations under brightness changes of various target scenes. The input images used in the study were composed of pure- amplitude, pure-phase, and complex data, respectively. Also the performance for input images with complex data transformed by a spatial light modulator that uses the electroabsorption effect of GaAs single crystal has been compared with the mentioned results. The input images with pure-phase and complex data gave better results than those with pure- amplitude data, for various input images with the brighter target scenes. However, the input images with pure-amplitude data were most robust to brightness changes of target scenes.
Yasuhiro Iwamoto, Takumi Minemoto, "Comparisons of performances for brightness changes of target scenes between nonlinear joint transform correlators that use input images with pure amplitude, pure phase, and complex data," Optical Engineering 41(1), (1 January 2002). https://doi.org/10.1117/1.1425787
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