Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Shun-ichi Kamemaru"'
Autor:
Kenji Harada, Fuminobu Sato, Shun-ichi Kamemaru, Daisuke Barada, Daisuke Sakai, Takashi Fukuda
Publikováno v:
Optical Review. 16:335-338
We propose a method of hologram recording in a glass plate by corona charging. The holographic recording materials used in this study are conventional soda-lime glass and azobenzene polymer film. A Fourier transform hologram on an azobenzene polymer
Publikováno v:
ResearcherID
We propose techniques of hologram replication in glass plates and reconstruction on another film by corona charging. A surface relief hologram on an azobenzene polymer film was recorded in the form of electric polarization in glass plates that includ
Autor:
Masahide Itoh, Daisuke Sakai, Toyohiko Yatagai, Shun-ichi Kamemaru, M.A. El-Morsy, Kenji Harada
Publikováno v:
Optical Review. 12:383-386
We propose a direct fabrication of light diffusers using azobenzene polymer films. Holographic recordings of surface relief diffusers are formed on the polymer film by exposure to an Nd:YAG laser (532 nm) through source diffusion materials. No post-t
Publikováno v:
Optical Review. 12:130-134
Surface relief holograms are fabricated by irradiation of laser interference patterns on an azobenzene polymer film. The hologram needs no post-treatment, and can be erased by heating the films to above its glass transition temperature. Rewritable Fr
Autor:
Daisuke Barada, Kenji Harada, Fuminobu Sato, Daisuke Sakai, Takashi Fukuda, Shun-ichi Kamemaru
Publikováno v:
Japanese Journal of Applied Physics. 47:7929-7931
We report on the recording characteristics of a hologram in a soda-lime glass plate. A surface relief holographic grating on an azobenzene polymer film coated on a glass plate is recorded in the glass plate using corona charging. The holographic grat
Autor:
Mitsuaki Kobayashi, Shun–ichi Kamemaru
Publikováno v:
Optical Review. 1:55-58
In this paper, twelve linear primitive reference patterns are proposed for synthesizing a matched spatial filter, known as a shape invariant filter, which can recognize all patterns with various shapes. Furthermore, reprocessed data, given by correla
Publikováno v:
Applied optics. 29(28)
In the optical-neural recognition system proposed for flexible parallel information processing, a planar microlens array is used to form simultaneously many identical Fourier transforms of an input pattern; from each transform the feature extraction
Publikováno v:
Transactions of the Society of Instrument and Control Engineers. 28:419-425
Publikováno v:
Optical Implementation of Information Processing.
In most pattern recognition systems, many target patterns should be recognized at one time by fewer reference patterns when the system uses a matched spatial filter. In this paper, two approaches are described for reducing the number of reference pat
Autor:
Masayasu Nakazawa, Shun-ichi Kamemaru
Publikováno v:
SPIE Proceedings.
In this paper, a new approach for uniquely selecting the optimum reference patterns of a matched spatial filter (MSF) is described. By the reference patterns we can synthesize the optimum MSF despite the target patterns are changed from letters to nu