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Osamu Matoba
Researcher at Kobe University
Publications - 405
Citations - 6292
Osamu Matoba is an academic researcher from Kobe University. The author has contributed to research in topics: Holography & Digital holography. The author has an hindex of 36, co-authored 382 publications receiving 5627 citations. Previous affiliations of Osamu Matoba include Osaka University & University of Tokyo.
Papers
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Journal ArticleDOI
Encrypted optical memory system using three-dimensional keys in the Fresnel domain.
Osamu Matoba,Bahram Javidi +1 more
TL;DR: Encryption and decryption of optical memory in a LiNbO(3) :Fe photorefractive crystal by use of angular multiplexing is demonstrated.
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Optical Techniques for Information Security
TL;DR: An overview of the potential of free space optical technology in information security, encryption, and authentication is presented and optical authentication techniques applied to ID tags with visible and near infrared imaging are reviewed.
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Optoelectronic information encryption with phase-shifting interferometry
TL;DR: A technique that combines the high speed and the high security of optical encryption with the advantages of electronic transmission, storage, and decryption is introduced and can be adapted to encrypt either the Fraunhofer or the Fresnel diffraction pattern of the input.
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Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram.
TL;DR: It is demonstrated that it is possible to reconstruct optically 3D objects using only phase information of the optical field calculated from phase-shifting digital holograms.
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Parallel two-step phase-shifting digital holography
Yasuhiro Awatsuji,Tatsuki Tahara,Atsushi Kaneko,Takamasa Koyama,Kenzo Nishio,Shogo Ura,Toshihiro Kubota,Osamu Matoba +7 more
TL;DR: A parallel two-step phase-shifting digital holography technique capable of instantaneous measurement of three-dimensional objects, with a view toward measurement of dynamically moving objects, based on phase- shifting interferometry is proposed.