Dr. Kohji Mitani Profile

Dr. Kohji Mitani

at NHK Science & Technical Research Labs

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 10 March 2021 Open Access

Ultimate two-dimensional media and evolution of advanced immersive sensory media

Kohji Mitani

Proceedings Volume 11709, 1170903 (2021) https://doi.org/10.1117/12.2591834

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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 | 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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SPIE Journal Paper | 1 January 2006

Real-time gain correction method using a reference light for an area-parallel-type frame-transfer charge-coupled device with multi-output taps

Kohji Mitani, Masayuki Sugawara, Fumio Okano

JEI, Vol. 15, Issue 01, 013001, (January 2006) https://doi.org/10.1117/12.10.1117/1.2155338

KEYWORDS: Charge-coupled devices, Image sensors, Sensors, Light sources, Prisms, Cameras, Light emitting diodes, CCD image sensors, Optical amplifiers, Interference (communication)

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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 | 30 May 2003 Paper

Integral three-dimensional television based on superhigh-definition video system

Jun Arai, Makoto Okui, Masaki Kobayashi, Masayuki Sugawara, Kohji Mitani, Hiroshi Shimamoto, Fumio Okano

Proceedings Volume 5006, (2003) https://doi.org/10.1117/12.474096

KEYWORDS: 3D image processing, 3D displays, Photography, Microlens array, LCDs, Image resolution, 3D image reconstruction, Microlens, Imaging systems, Displays

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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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Proceedings Article | 15 May 2000 Paper

Ultrahigh-definition experimental camera system with an 8M-pixel CCD

Kohji Mitani, Masayuki Sugawara, Hiroshi Shimamoto, Charles Smith, Michael Farrier, Queintin Tang, Fumio Okano

Proceedings Volume 3965, (2000) https://doi.org/10.1117/12.385437

KEYWORDS: Cameras, Imaging systems, Charge-coupled devices, Video, Digital signal processing, Signal processing, CCD cameras, Image resolution, Analog electronics, Image quality

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Proceedings Article | 28 December 1998 Paper

4K x 2K pixel color video pickup system

Masayuki Sugawara, Kohji Mitani, Hiroshi Shimamoto, Yoshihiro Fujita, Ichiro Yuyama, Keijirou Itakura

Proceedings Volume 3653, (1998) https://doi.org/10.1117/12.334650

KEYWORDS: Imaging systems, Image sensors, Charge-coupled devices, Cameras, Signal processing, Video, Image resolution, Sensors, Spatial resolution, Resolution enhancement technologies

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Proceedings Article | 25 April 1997 Paper

Dynamic range expansion method for a CMD imager

Hiroshi Shimamoto, Kohji Mitani, Yoshihiro Fujita

Proceedings Volume 3019, (1997) https://doi.org/10.1117/12.275180

KEYWORDS: Imaging systems, Nondestructive evaluation, Modulation, Active sensors, Sensors, Signal processing, Transistors, Silicon, Electrodes, Scanners

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Proceedings Article | 16 February 1996 Paper

2K x 2K image acquisition system using four CMD imagers

Kohji Mitani, Hiroshi Shimamoto, Yoshihiro Fujita

Proceedings Volume 2663, (1996) https://doi.org/10.1117/12.233044

KEYWORDS: Imaging systems, Cameras, Image resolution, Video, Prisms, Signal processing, Spatial resolution, Video processing, Modulation, RGB color model

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Proceedings Article | 5 May 1994 Paper

Four-chip CCD camera for HDTV

Masayuki Sugawara, Kohji Mitani, Toshinori Saitoh, Yoshihiro Fujita, Keisuke Suetsugi

Proceedings Volume 2173, (1994) https://doi.org/10.1117/12.175155

KEYWORDS: Charge-coupled devices, CCD cameras, Imaging systems, Cameras, Chromatic aberrations, Prisms, Prototyping, Image resolution, Spatial resolution, RGB color model

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Showing 5 of 17 publications

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