Dr. Takayuki Yamashita Profile

Dr. Takayuki Yamashita

Head of Advanced Television Systems Research Div. at NHK Sci. & Tech. Research Labs.

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Author

Publications (15)

Proceedings Article | 21 February 2020 Presentation + Paper

Future challenges of UHDTV technology and expectations for R&D in photonics

Takayuki Yamashita

Proceedings Volume 11305, 113050U (2020) https://doi.org/10.1117/12.2551871

KEYWORDS: Cameras, Video, Image sensors, Photonics, Sensors, Imaging systems, Interfaces, High dynamic range imaging, Human-machine interfaces, LCDs

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Proceedings Article | 21 February 2020 Presentation + Paper

A proposal of sensor-based phase detection method in 3-CMOS 8K 240-fps imaging

Kodai Kikuchi, Toshio Yasue, Ryohei Funatsu, Kohei Tomioka, Tomoki Matsubara, Takayuki Yamashita

Proceedings Volume 11305, 113050V (2020) https://doi.org/10.1117/12.2545672

KEYWORDS: Sensors, RGB color model, Cameras, Imaging systems, Image sensors, Prototyping, Prisms, Optical filters, Color imaging, CMOS sensors

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Proceedings Article | 22 May 2015 Paper

Compact integral three-dimensional imaging device

J. Arai, T. Yamashita, H. Hiura, M. Miura, R. Funatsu, T. Nakamura, E. Nakasu

Proceedings Volume 9495, 94950I (2015) https://doi.org/10.1117/12.2182658

KEYWORDS: 3D image processing, Imaging devices, 3D displays, Image sensors, Stereoscopy, Image resolution, Imaging arrays, Cameras, CMOS sensors, Integral imaging

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Proceedings Article | 19 February 2013 Paper

A 33M-pixel wide color gamut image capturing system using four CMOS image sensors at 120 Hz

Takuji Soeno, Kohei Omura, Takayuki Yamashita, Ryohei Funatsu, Masayuki Sugawara, Makoto Okui

Proceedings Volume 8659, 865909 (2013) https://doi.org/10.1117/12.2003292

KEYWORDS: Image sensors, Sensors, Modulation transfer functions, Prisms, CMOS sensors, Cameras, Prototyping, Imaging systems, Image resolution, Head

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Proceedings Article | 22 September 2011 Paper

Integral imaging system with 33 mega-pixel imaging devices using the pixel-offset method

Jun Arai, Masahiro Kawakita, Takayuki Yamashita, Hisayuki Sasaki, Masato Miura, Hitoshi Hiura, Makoto Okui, Fumio Okano, Yasuyuki Haino, Masahito Sato

Proceedings Volume 8167, 81670X (2011) https://doi.org/10.1117/12.896753

KEYWORDS: 3D image processing, 3D displays, Cameras, Spatial frequencies, Image resolution, Televisions, Imaging devices, Video, Imaging systems, Integral imaging

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Proceedings Article | 17 February 2011 Paper

Single-chip color imaging for UHDTV camera with a 33M-pixel CMOS image sensor

Ryohei Funatsu, Takayuki Yamashita, Kohji Mitani, Yuji Nojiri

Proceedings Volume 7875, 787502 (2011) https://doi.org/10.1117/12.871045

KEYWORDS: Cameras, Modulation transfer functions, Imaging systems, Sensors, CMOS sensors, Image resolution, Optical filters, Image filtering, Signal processing, Color imaging

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Proceedings Article | 28 January 2009 Paper

Experimental color video capturing equipment with three 33-megapixel CMOS image sensors

Takayuki Yamashita, Steven Huang, Ryohei Funatsu, Barmak Mansoorian, Kohji Mitani, Yuji Nojiri

Proceedings Volume 7249, 72490H (2009) https://doi.org/10.1117/12.805493

KEYWORDS: Sensors, Imaging systems, Cameras, CMOS sensors, Signal processing, Image sensors, Modulation transfer functions, Video, Image resolution, Modulation

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SPIE Journal Paper | 1 April 2008

Ultrahigh-definition color video camera system with 8K×4K pixels

Kohji Mitani, Masayuki Sugawara, Hiroshi Shimamoto, Takayuki Yamashita, Fumio Okano

JEI, Vol. 17, Issue 02, 023014, (April 2008) https://doi.org/10.1117/12.10.1117/1.2920336

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Proceedings Article | 26 September 2007 Open Access

Three-dimensional integral television using extremely high-resolution video system with 4,000 scanning lines

Fumio Okano, Masahiro Kawakita, Jun Arai, Hisayuki Sasaki, Takayuki Yamashita, Masahito Sato, Koya Suehiro, Yasuyuki Haino

Proceedings Volume 6778, 677805 (2007) https://doi.org/10.1117/12.733012

KEYWORDS: Modulation transfer functions, Lenses, Spatial frequencies, 3D image processing, Televisions, Video, Visualization, 3D displays, GRIN lenses, Image resolution

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Proceedings Article | 20 February 2007 Paper

Characteristics of experimental single-chip color HDTV image acquisition system with 8M-pixel image sensor

Hiroshi Shimamoto, Takayuki Yamashita, Ryohei Funatsu, Kohji Mitani, Yuji Nojiri

Proceedings Volume 6502, 65020Q (2007) https://doi.org/10.1117/12.705337

KEYWORDS: Imaging systems, Cameras, Modulation transfer functions, Signal processing, Image acquisition, Optical filters, Signal to noise ratio, Image resolution, Video, Solids

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Proceedings Article | 6 February 2006 Paper

A lateral chromatic aberration correction system for ultrahigh-definition color video camera

Takayuki Yamashita, Hiroshi Shimamoto, Ryohei Funatsu, Kohji Mitani, Yuji Nojiri

Proceedings Volume 6068, 60680N (2006) https://doi.org/10.1117/12.642969

KEYWORDS: Data corrections, Chromatic aberrations, Signal processing, Imaging systems, Cameras, Video, Zoom lenses, Tolerancing, Sensors, LCDs

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Proceedings Article | 6 February 2006 Paper

Experimental single-chip color HDTV image acquisition system with 8M-pixel CMOS image sensor

Hiroshi Shimamoto, Takayuki Yamashita, Ryohei Funatsu, Kohji Mitani, Yuji Nojiri

Proceedings Volume 6068, 606808 (2006) https://doi.org/10.1117/12.650488

KEYWORDS: Imaging systems, Cameras, Optical filters, Spatial frequencies, Image acquisition, CMOS sensors, Image sensors, Modulation transfer functions, Signal processing, Sensors

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Proceedings Article | 7 June 2004 Paper

A new sensor alignment method for an 8k x 4k-pixel ultrahigh definition camera with four imagers

Takayuki Yamashita, Kohji Mitani, Hiroshi Shimamoto, Miho Shirakawa, Fumio Okano

Proceedings Volume 5301, (2004) https://doi.org/10.1117/12.526609

KEYWORDS: Imaging systems, Sensors, Cameras, Image resolution, Prisms, CMOS sensors, Signal processing, Video, Image sensors, Signal detection

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Proceedings Article | 16 May 2003 Paper

Ultrahigh-definition color video camera system with 4K-scanning lines

Kohji Mitani, Masayuki Sugawara, Hiroshi Shimamoto, Takayuki Yamashita, Fumio Okano

Proceedings Volume 5017, (2003) https://doi.org/10.1117/12.476793

KEYWORDS: Cameras, Charge-coupled devices, Imaging systems, Video, Signal processing, Image resolution, CCD cameras, Prisms, Head, Digital signal processing

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Proceedings Article | 24 April 2002 Paper

Wide-dynamic-range camera using a novel optical beam splitting system

Takayuki Yamashita, Masayuki Sugawara, Kohji Mitani, Fumio Okano

Proceedings Volume 4669, (2002) https://doi.org/10.1117/12.463415

KEYWORDS: Charge-coupled devices, Cameras, Imaging systems, Image quality, Prisms, Beam splitters, CCD cameras, Color imaging, Integrated optics, Light sources and illumination

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Showing 5 of 15 publications

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