Implementation Features of Invariant Optical Correlator Based on Amplitude LC SLM

Goncharov, D. S.; Petrova, E. K.; Ponomarev, N. M.; Starikov, Rostislav S.; Zlokazov, E. Yu.

doi:10.3103/s1060992x20020022

Cited by 1 publication

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References 27 publications

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“…The proposed solution aids to determine the optimal pair of orthogonally polarized images and can accurately locate the position of the optimal images and recover them with very good image quality and contrast. Goncharov et al [ 110 ] analyzed, by means of numerical simulations, the implementation characteristics of a VLC correlator based on an amplitude liquid crystal (LC) SLM (HOLOEYE LC 2002), employed for displaying the input images in one considered case, and the holograms of the correlation filter in other two cases, with a MACH (maximum average correlation height) and a MINACE (minimum noise and correlation energy) filter, respectively. The authors also proposed a method to optimize the filters, to avoid errors in recognition due to additional phase modulation of light present in amplitude LC SLMs.…”

Section: Recent Applications and Implementations Of Optical Correlatorsmentioning

confidence: 99%

Optical Correlators for Cryptosystems and Image Recognition: A Review

Drăgulinescu

2023

Sensors

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Optical correlators are efficient optical systems that have gained a wide range of applications both in image recognition and encryption, due to their special properties that benefit from the optoelectronic setup instead of an all-electronic one. This paper presents, to the best of our knowledge, the most extensive review of optical correlators to date. The main types are overviewed, together with their most frequent applications in the newest contributions, ranging from security uses in cryptosystems, to medical and space applications, femtosecond pulse detection and various other image recognition proposals. The paper also includes a comparison between various optical correlators developed recently, highlighting their advantages and weaknesses, to gain a better perspective towards finding the best solutions in any specific domain where these devices might prove highly efficient and useful.

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Section: Recent Applications and Implementations Of Optical Correlatorsmentioning

confidence: 99%

Optical Correlators for Cryptosystems and Image Recognition: A Review

Drăgulinescu

2023

Sensors

View full text Add to dashboard Cite

show abstract

Implementation Features of Invariant Optical Correlator Based on Amplitude LC SLM

Cited by 1 publication

References 27 publications

Optical Correlators for Cryptosystems and Image Recognition: A Review

Optical Correlators for Cryptosystems and Image Recognition: A Review

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