Dr. Yasuyuki Ichihashi Profile

Dr. Yasuyuki Ichihashi

Research Manager at NICT

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Author

Publications (18)

Proceedings Article | 13 March 2024 Presentation + Paper

Machine learning for the design of two-layer holographic optical elements

Ikuo Hoshi, Koki Wakunami, Yasuyuki Ichihashi, Ryutaro Oi

Proceedings Volume 12903, 129030M (2024) https://doi.org/10.1117/12.3001349

KEYWORDS: Holographic optical elements, Machine learning, Neural networks

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SPIE Journal Paper | 9 August 2023 Open Access

High-performance computer system dedicated to ray-wavefront conversion technique aimed to display holograms in real-time

Tatsuya Maruyama, Yasuyuki Ichihashi, Ikuo Hoshi, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito

OE, Vol. 62, Issue 08, 085102, (August 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.8.085102

KEYWORDS: Holograms, Computing systems, Field programmable gate arrays, 3D image reconstruction, Wavefronts, Light wave propagation, 3D image processing, Holography, Optical engineering, Data conversion

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Proceedings Article | 10 October 2020 Presentation + Paper

Multidimensional digital holographic microscopy based on computational coherent superposition for coherent and incoherent light sensing

Tatsuki Tahara, Ryo Okamoto, Ayumi Ishii, Tomoyoshi Ito, Koki Wakunami, Yasuyuki Ichihashi, Ryutaro Oi

Proceedings Volume 11551, 115510M (2020) https://doi.org/10.1117/12.2573192

KEYWORDS: Digital holography, Holography, Superposition, Microscopy, Phase interferometry, Phase shifts, Color image segmentation, Colorimetry, Frequency division multiplexing, Doppler effect

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Proceedings Article | 6 April 2020 Paper

Study on holographic special-purpose computer for wavefront printing technology

Yasuyuki Ichihashi, Takashi Kakue, Koki Wakunami, Boaz Jessie Jackin, Ryutaro Oi, Tomosyoshi Shimobaba, Tomoyoshi Ito

Proceedings Volume 11353, 113530Q (2020) https://doi.org/10.1117/12.2554374

KEYWORDS: Wavefronts, Holograms, Printing, Remote sensing, Holography, Optical design, 3D image reconstruction, Data conversion, Digital holography

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SPIE Journal Paper | 27 April 2018 Open Access

Three-dimensional reflection screens fabricated by holographic wavefront printer (Erratum)

Ryutaro Oi, Ping-Yen Chou, Boaz Jessie Jackin, Koki Wakunami, Yasuyuki Ichihashi, Makoto Okui, Yi-Pai Huang, Kenji Yamamoto

OE, Vol. 57, Issue 06, 069801, (April 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.6.069801

KEYWORDS: Holography, Wavefronts, Printing, 3D displays, 3D printing, Electromagnetism, Communication engineering, Communication and information technologies, Photonics, Electro-optical engineering

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Proceedings Article | 19 February 2018 Paper

Hologram printing for next-generation holographic display

Kenji Yamamoto, Boaz Jessie Jackin, Koki Wakunami, Lode Jorissen, Yasuyuki Ichihashi, Makoto Okui, Ryutaro Oi

Proceedings Volume 10557, 105570O (2018) https://doi.org/10.1117/12.2289091

KEYWORDS: Holograms, Holography, Holographic optical elements

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SPIE Journal Paper | 27 January 2018 Open Access

Three-dimensional reflection screens fabricated by holographic wavefront printer

Ryutaro Oi, Ping-Yen Chou, Jackin Boaz Jessie , Koki Wakunami, Yasuyuki Ichihashi, Makoto Okui, Yi-Pai Huang, Kenji Yamamoto

OE, Vol. 57, Issue 06, 061605, (January 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.6.061605

KEYWORDS: Printing, Holograms, Wavefronts, 3D displays, 3D printing, Holography, Projection systems, Holographic optical elements, Spatial light modulators, Mirrors

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Proceedings Article | 6 April 2017 Presentation + Paper

An analysis of printing conditions for wavefront overlapping printing

Y. Ichihashi, K. Yamamoto, K. Wakunami, R. Oi, M. Okui, T. Senoh

Proceedings Volume 10127, 101270L (2017) https://doi.org/10.1117/12.2251285

KEYWORDS: Wavefronts, Printing, 3D image reconstruction, Holograms, Holography, Spatial light modulators, Computer generated holography, Image analysis, LCDs, Image quality, Digital holography, Cameras, Image resolution, Light sources

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Proceedings Article | 1 June 2016 Paper

Wavefront printing technique with overlapping approach toward high definition holographic image reconstruction

K. Wakunami, R. Oi, T. Senoh, H. Sasaki, Y. Ichihashi, K. Yamamoto

Proceedings Volume 9867, 98670J (2016) https://doi.org/10.1117/12.2229517

KEYWORDS: Wavefronts, Printing, 3D image reconstruction, Holograms, Holography, Diffraction, Spatial light modulators, 3D acquisition, 3D image processing, 3D printing

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Proceedings Article | 5 June 2014 Paper

Integral photography capture and electronic holography display

Yasuyuki Ichihashi, Kenji Yamamoto

Proceedings Volume 9117, 91170P (2014) https://doi.org/10.1117/12.2049690

KEYWORDS: Holograms, Holography, Photography, 3D image reconstruction, Video, Spatial light modulators, 3D displays, 3D image processing, Diffraction, Video acceleration

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SPIE Journal Paper | 6 March 2014

Multiview image and depth map coding for holographic TV system

Takanori Senoh, Koki Wakunami, Yasuyuki Ichihashi, Hisayuki Sasaki, Ryutaro Oi, Kenji Yamamoto

OE, Vol. 53, Issue 11, 112302, (March 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.11.112302

KEYWORDS: Image compression, Holograms, Holography, 3D image reconstruction, Image quality, Image transmission, Cameras, Computer programming, Speckle, Optical engineering

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Proceedings Article | 25 February 2014 Paper

Viewing-zone-angle expansion of tiled color electronic holography reconstruction system

Takanori Senoh, Koki Wakunami, Yasuyuki Ichihashi, Hisayuki Sasaki, Ryutaro Oi, Kenji Yamamoto

Proceedings Volume 9006, 90060Z (2014) https://doi.org/10.1117/12.2035909

KEYWORDS: Spatial light modulators, Holograms, Holography, Light sources, Liquid crystal on silicon, Diffraction, Optical fibers, Camera shutters, Lenses, 3D image reconstruction

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Proceedings Article | 1 March 2013 Paper

Study of a holographic TV system based on multi-view images and depth maps

Takanori Senoh, Yasuyuki Ichihashi, Ryutaro Oi, Hisayuki Sasaki, Kenji Yamamoto

Proceedings Volume 8644, 86440A (2013) https://doi.org/10.1117/12.2000570

KEYWORDS: Holograms, Holography, Image compression, 3D image processing, 3D image reconstruction, Cameras, Computer generated holography, Computer programming, Error analysis, Digital holography

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Proceedings Article | 15 May 2012 Paper

3D visual systems using integral photography camera, camera array, and electronic holography display

Kenji Yamamoto, Yasuyuki Ichihashi, Takanori Senoh, Ryutaro Oi, Taiichiro Kurita

Proceedings Volume 8384, 838405 (2012) https://doi.org/10.1117/12.918315

KEYWORDS: Cameras, 3D displays, 3D image processing, 3D image reconstruction, Holograms, Photography, Holography, LCDs, Spatial filters, Visual system

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Proceedings Article | 10 February 2012 Paper

Wide viewing-zone angle hologram generation using phase-shifting hologram capture for holographic media communications

Ryutaro Oi, Yasuyuki Ichihashi, Kenji Yamamoto, Takanori Senoh, Taiichiro Kurita

Proceedings Volume 8281, 828107 (2012) https://doi.org/10.1117/12.909536

KEYWORDS: Holograms, Phase shifts, Holography, Digital holography

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Proceedings Article | 20 May 2011 Paper

Development of electronic holography toward ultra-realistic communication

Kenji Yamamoto, Yasuyuki Ichihashi, Takanori Senoh, Ryutaro Oi, Taiichiro Kurita

Proceedings Volume 8043, 804312 (2011) https://doi.org/10.1117/12.883337

KEYWORDS: 3D image reconstruction, Holography, 3D image processing, Holograms, 3D displays, Image compression, Image visualization, Imaging systems, Cameras, Image processing

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Proceedings Article | 11 May 2011 Paper

Computer-generated hologram for 3D display from ray information on tilted surface

Kenji Yamamoto, Takanori Senoh, Ryutaro Oi, Yasuyuki Ichihashi, Taiichiro Kurita

Proceedings Volume 8074, 807406 (2011) https://doi.org/10.1117/12.886234

KEYWORDS: Computer generated holography, 3D displays, Holography, Computer graphics, Holograms, Current controlled current source, Wave propagation

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Proceedings Article | 7 February 2011 Paper

Holographic stereogram using camera array in dense arrangement

Kenji Yamamoto, Ryutaro Oi, Takanori Senoh, Yasuyuki Ichihashi, Taiichiro Kurita

Proceedings Volume 7957, 795703 (2011) https://doi.org/10.1117/12.873028

KEYWORDS: Cameras, Holography, Stereo holograms, 3D displays, Stereoscopic cameras, Holograms, Signal processing, Current controlled current source, Fourier transforms, Optical design

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Showing 5 of 18 publications

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