Photorefractive crystals for real-time image processing

Ken-Yuh Hsu; Shiuan-Huei Lin; Tai Chiung Hsieh; Longjang Hu; T. S. Yeh; H. P. Lin; Chia Hui Lin; S. L. Tu; Sheng Jehn Yang; Shu En Hsu

doi:10.1117/12.178619

Photorefractive crystals for real-time image processing

Ken-Yuh Hsu, Shiuan-Huei Lin, Tai Chiung Hsieh, Longjang Hu, T. S. Yeh, H. P. Lin, Chia Hui Lin, S. L. Tu, Sheng Jehn Yang, Shu En Hsu

Research output: Contribution to journal › Conference article › peer-review

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Abstract

Heavily iron doped lithium niobate photorefractive crystals are grown and characterized. The crystals have high diffraction efficiency and fast temporal response and hence are suitable for real-time image processing. Three applications of thin Fe: LiNbO ₃ plates are demonstrated: the joint-transform correlator, the optical perception, and the hybrid image classifier. In the first and third systems, the heavily doped (0.5% mole) crystals are used. These crystals have fast temporal response (300-400 msec) and thus provide a means for real time optical processing. In the second system, a slightly light doped (0.1% mole) crystal is used. It has relatively long (> 1 minute) response time and is used for recording the dynamic memory in a neural network. Image recognition by these three systems are presented.

Original language	English
Article number	102700D
Pages (from-to)	204-220
Number of pages	17
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10270
DOIs	https://doi.org/10.1117/12.178619
State	Published - 11 Jul 1993
Event	Photorefractive Materials, Effects, and Applications: A Critical Review 1993 - San Diego, United States Duration: 11 Jul 1993 → 16 Jul 1993

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title = "Photorefractive crystals for real-time image processing",

abstract = " Heavily iron doped lithium niobate photorefractive crystals are grown and characterized. The crystals have high diffraction efficiency and fast temporal response and hence are suitable for real-time image processing. Three applications of thin Fe: LiNbO 3 plates are demonstrated: the joint-transform correlator, the optical perception, and the hybrid image classifier. In the first and third systems, the heavily doped (0.5% mole) crystals are used. These crystals have fast temporal response (300-400 msec) and thus provide a means for real time optical processing. In the second system, a slightly light doped (0.1% mole) crystal is used. It has relatively long (> 1 minute) response time and is used for recording the dynamic memory in a neural network. Image recognition by these three systems are presented. ",

author = "Ken-Yuh Hsu and Shiuan-Huei Lin and Hsieh, {Tai Chiung} and Longjang Hu and Yeh, {T. S.} and Lin, {H. P.} and Lin, {Chia Hui} and Tu, {S. L.} and Yang, {Sheng Jehn} and Hsu, {Shu En}",

year = "1993",

month = jul,

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doi = "10.1117/12.178619",

language = "English",

volume = "10270",

pages = "204--220",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "Photorefractive Materials, Effects, and Applications: A Critical Review 1993 ; Conference date: 11-07-1993 Through 16-07-1993",

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T1 - Photorefractive crystals for real-time image processing

AU - Hsu, Ken-Yuh

AU - Lin, Shiuan-Huei

AU - Hsieh, Tai Chiung

AU - Hu, Longjang

AU - Yeh, T. S.

AU - Lin, H. P.

AU - Lin, Chia Hui

AU - Tu, S. L.

AU - Yang, Sheng Jehn

AU - Hsu, Shu En

PY - 1993/7/11

Y1 - 1993/7/11

N2 - Heavily iron doped lithium niobate photorefractive crystals are grown and characterized. The crystals have high diffraction efficiency and fast temporal response and hence are suitable for real-time image processing. Three applications of thin Fe: LiNbO 3 plates are demonstrated: the joint-transform correlator, the optical perception, and the hybrid image classifier. In the first and third systems, the heavily doped (0.5% mole) crystals are used. These crystals have fast temporal response (300-400 msec) and thus provide a means for real time optical processing. In the second system, a slightly light doped (0.1% mole) crystal is used. It has relatively long (> 1 minute) response time and is used for recording the dynamic memory in a neural network. Image recognition by these three systems are presented.

AB - Heavily iron doped lithium niobate photorefractive crystals are grown and characterized. The crystals have high diffraction efficiency and fast temporal response and hence are suitable for real-time image processing. Three applications of thin Fe: LiNbO 3 plates are demonstrated: the joint-transform correlator, the optical perception, and the hybrid image classifier. In the first and third systems, the heavily doped (0.5% mole) crystals are used. These crystals have fast temporal response (300-400 msec) and thus provide a means for real time optical processing. In the second system, a slightly light doped (0.1% mole) crystal is used. It has relatively long (> 1 minute) response time and is used for recording the dynamic memory in a neural network. Image recognition by these three systems are presented.

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M3 - Conference article

AN - SCOPUS:0010581999

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VL - 10270

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EP - 220

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 102700D

T2 - Photorefractive Materials, Effects, and Applications: A Critical Review 1993

Y2 - 11 July 1993 through 16 July 1993

ER -

Photorefractive crystals for real-time image processing

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