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    Article

    Beam Profile Monitoring of Synchrotron Radiation by Adaptive Optics

    A beam profile monitoring system for synchrotron radiation, designed to evaluate the distribution of a cross section of the electron beam in a high-energy accelerator storage ring in real-time is descripted. T...

    Masahide Itoh, Naoya Takeuchi, Toshiyuki Mltsuhashi, Toyohiko Yatagai in Optical Review (1998)

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    Article

    Diffraction-Based Spatial Light Modulation: Transverse Linear Electrooptic Effect in Polymers

    We propose a new type of spatial light modulator using nonlinear organic polymer film as a phase modulation element. Using polymer poly-Disperse Red-19 Toluendiiso-cyanate, a more than 150:1 contrast ratio has...

    Kenji Harada, Masahide Itoh, Igor N. Kompanets, Hiro Matsuda in Optical Review (1998)

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    Article

    Spatial Arrangement of Small Particles by Imaging Laser Trap** System

    We describe spatial arrangement of polystyrene latex using a microscopic imaging system. A reduced photomask pattern is imaged on the particles in a water-filled cell so that polystyrene spheres align in a two...

    Masahide Itoh, Masayuki Takahira, Toyohiko Yatagai in Optical Review (1998)

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    Article

    Optical Entropy Network Mapped from Binary Feature Tree

    The concept of a binary feature tree (BFT) and the principle of its formation are described. A pattern is divided into sub-parts by comparing its similarity with other patterns. The BFT is established by sub-p...

    Feng Lei, Masahide Itoh, Toyohiko Yatagai in Optical Review (1997)

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    Article

    Optimal Incoherent Filtering for Distortion-Invariant Image Recognition

    An optimal incoherent filter is proposed for distortion-invariant correlation. The optical transfer function (OTF) of the correlator is specified as a realizable phase-only term which is optimized by the simul...

    Jian** Ding, Masahide Itoh, Toyohiko Yatagai in Optical Review (1997)

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    Article

    Adaptive computer-generated hologram using interpolation method

    Kinoform synthesis by an electro-optic hybrid system using an interpolation method is proposed. A programmable liquid crystal spatial light modulator is used as a kinoform. The phase distribution of the kinofo...

    Nobukazu Yoshikawa, Masahide Itoh, Toyohiko Yatagai in Optical Review (1997)

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    Article

    Adaptive computer-generated hologram using interpolation method

    Kinoform synthesis by an electro-optic hybrid system using an interpolation method is proposed. A programmable liquid crystal spatial light modulator is used as a kinoform. The phase distribution of the kinofo...

    Nobukazu Yoshikawa, Masahide Itoh, Toyohiko Yatagai in Optical Review (1997)

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    Development of spatial light modulators with nonlinear organic materials

    An electrically addressable spatial light modulator is designed using nonlinear organic materials for optical information processing and display. One candidates for spatial light modulator (SLM) material is a ...

    Kenji Harada, Masahide Itoh, Toyohiko Yatagai in Optical Review (1996)

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    Optical Module for Modified Signed-Digit Computing Based on Bit Plane Encoding and Pattern Operations

    We propose here a new optical modified signed-digit (MSD) adder module based on bit plane pattern encoding of MSD digits and pattern operations. The pattern operations required in the algorithm are duplication...

    Hongxin Huang, Masahide Itoh, Toyohiko Yatagai in Optical Review (1995)

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    Broad-Band Light-Wave Correlation Topography Using Wavelet Transform

    The absolute longitudinal distance between two points can be determined by the corresponding correlation peaks of two light-waves from a broad-band light source. Using this technique, the height of three-dimen...

    Masahide Itoh, Ryuji Yamada, Ronglong Tian, Minghong Tsai in Optical Review (1995)

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    Parallel Modified Signed-Digit Computing for Large-Scale Two Dimensional Data Array

    We propose a novel parallel algorithm of modified signed-digit (MSD) computing, in which MSD digits are encoded to three bit plane (BP) patterns. The addition of two MSD data arrays is performed with two steps...

    Hongxin HUANG, Masahide ITOH, Toyohiko YATAGAI in Optical Review (1994)

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    Article

    Proceedings of the 25th annual meeting

    Pao-Huei Chen, Yeong-Shan Jeng, Shiann Pan, Kuang-Yang Lin in Gastroenterologia Japonica (1984)

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