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pro vyhledávání: '"I R, Cooper"'
Publikováno v:
Applied optics. 26(2)
A simple systems-oriented model of image correlation by nondegenerate four-wave mixing in photorefractive media is discussed, and its computational implementation is described. The model is based on a linear-in-complex modulation index formulation an
Publikováno v:
Biochemical Society transactions. 26(4)
Autor:
I R Cooper
Publikováno v:
British dental journal. 172(10)
Autor:
I. R. Cooper
Publikováno v:
International Endodontic Journal. 13:76-88
Publikováno v:
Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering ISBN: 9783540181323
The attraction of using optics to perform the cross-correlation of two images, is the ease with which a good quality lens generates a 2-D Fourier transform. This Fourier transform property of the lens is dependent on the use of coherent light to carr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e4cd66d645dce2c330f48c08f13f541
https://doi.org/10.1007/978-3-642-83174-4_45
https://doi.org/10.1007/978-3-642-83174-4_45
Autor:
M. Buchel, J. M. Brodin, G. G. Gibbons, F. Dubois, S. C. Webster, J. P. Schnell, P. S. Cawte, I. R. Cooper, B. Loiseaux
Publikováno v:
SPIE Proceedings.
The goal of cost effective, high performance optical systems capable of pattern matching tasks has fuelled research for over two decades. It is only recently with the introduction of novel optical/electronic architectures that such systems are becomi
Publikováno v:
SPIE Proceedings.
We describe initial experiments on a photorefractive based optical image correlator which employs a frequency doubled, pulsed Nd:YAG laser with a pulse length of 10 nsec to write a phase grating into a crystal of bismuth silicon oxide. The correlatio
Publikováno v:
SPIE Proceedings.
Coherent optical image correlators have been the subject of much research since the early work, performed by Vander Lugt in 1964 [1]. The use of conventional holographic techniques in such systems have proven to be inflexible in that the filter funct
Publikováno v:
Optical Engineering. 26:265445
The utility of updatable optical image correlation in photorefractive materials for industrial applications is discussed. This allows the formation of iterative correlation products employing variable spatial frequency weighting and/or different refe
Publikováno v:
Journal of applied microbiology. 116(3)
Aim The development of silver-coated polyurethane filters as filtration units for the prevention of the respiratory diseases. Methods and Results An innovative silver deposition technology based on the photo-reduction in a silver salt was adopted. Th