Characterization of optical correlation via dynamic range compression using organic photorefractive materials

Khoury, Jed; Donoghue, John; Haji-saeed, Bahareh; Woods, Charles L.; Kierstead, John; Peyghambarian, N.; Yamamoto, Masaaki

doi:10.1117/12.923371

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行处理的优势空间光调制器(Spatial Light1

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“…20世纪90年代, Khoury等人 [15][16][17][18][19][20][21][22][23][24][25][26] [27,28] . 2000年Banerjee等人 [29] 使用新型的光折变聚合物材料实现了边缘增强的JTC, 将非线性效应引入到光学信息处理, 使得全光的相关器进入新的发展阶段, 除了光折变效应这种弱光非线性效应以外还可以通过强光作用的非线性效应实现光学模式识别.…”

Section: 行处理的优势空间光调制器(Spatial Lightunclassified

Structured light based optical pattern recognition:Principle and technical progress

Hong¹,

Lin²,

Chen³

2021

Sci. Sin.-Phys. Mech. Astron.

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Section: 行处理的优势空间光调制器(Spatial Lightunclassified

Structured light based optical pattern recognition:Principle and technical progress

Hong¹,

Lin²,

Chen³

2021

Sci. Sin.-Phys. Mech. Astron.

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Wave Mixing in Photorefractive Polymers: Modeling and Selected Applications

Banerjee

Evans

Liebig

2016

Photorefractive Organic Materials and Applications

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Photorefractive two-beam coupling joint transform correlator: modeling and performance evaluation

2016

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The photorefractive two-beam coupling joint transform correlator combines two features. The first is embedded semi-adaptive optimality, which weighs the correlation against clutter and noise in the input, and the second is the intrinsic dynamic range compression nonlinearity, which improves several metrics simultaneously without metric trade-off. Although the two beam coupling correlator was invented many years ago, its outstanding performance was recognized on only relatively simple images. There was no study about the performance of this correlator on complicated images and using different figures of merit. In this paper, the study is extended to more complicated images. For the first time, to our knowledge, we demonstrate simultaneous improvement in metrics performance without metric trade-off. The performance was evaluated compared to the classical joint transform correlator. A typical experimental result to validate the simulation results was also shown in this work. The best performing operation parameters were identified to guide the experimental work and for future comparison with other well-known optimal correlation filters.

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Characterization of optical correlation via dynamic range compression using organic photorefractive materials

Cited by 3 publications

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Structured light based optical pattern recognition:Principle and technical progress

Structured light based optical pattern recognition:Principle and technical progress

Wave Mixing in Photorefractive Polymers: Modeling and Selected Applications

Photorefractive two-beam coupling joint transform correlator: modeling and performance evaluation

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