Microchip Pattern Recognition Based on Optical Correlator

Solus, David; Ovseník, Ľuboš; Turán, Ján

doi:10.15546/aeei-2017-0014

Cited by 1 publication

(2 citation statements)

References 6 publications

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“…The arrangement of the components in a shape like the letter W reduces the distance of electric signal transmission and the processing time. The main disadvantage of this correlator is its size, although in current applications its size is reduced at approximately half of its initial size [ 42 , 43 , 44 ].…”

Section: Classification and Overview Of The Principles Of Optical Cor...mentioning

confidence: 99%

“…One of them is a system capable of recognizing microchip patterns (used in ID, SIM, and credit cards) according to specified criteria, based on the Cambridge correlator. By using the correlator, a comparison is performed between the input scenes, processed by software created in C# to extract the patterns from the static image, and the reference microchip patterns, stored in a database [ 42 ]. The same research group employed the Cambridge correlator in an application of an industrial system for video surveillance, to compare the dimensions of pavements, captured by a video camera and pre-processed with the Fourier Optics Experimenter software, with the ones of reference images stored in a database, benefitting from the possibility to process data at a high speed, in real time.…”

Section: Recent Applications and Implementations Of Optical Correlatorsmentioning

confidence: 99%

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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: Classification and Overview Of The Principles Of Optical Cor...mentioning

confidence: 99%

Section: Recent Applications and Implementations Of Optical Correlatorsmentioning

confidence: 99%