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

[+] Author Affiliations
Kohji Mitani

NHK Science and Technical Research Laboratories, Human and Information Science Division, 1-10-11 Kinuta, Setagaya-ku, Tokyo 158-8510, Japan

Masayuki Sugawara

NHK Science and Technical Research Laboratories, Human and Information Science Division, 1-10-11 Kinuta, Setagaya-ku, Tokyo 158-8510, Japan

Hiroshi Shimamoto

NHK Science and Technical Research Laboratories, Human and Information Science Division, 1-10-11 Kinuta, Setagaya-ku, Tokyo 158-8510, Japan

Takayuki Yamashita

NHK Science and Technical Research Laboratories, Human and Information Science Division, 1-10-11 Kinuta, Setagaya-ku, Tokyo 158-8510, Japan

Fumio Okano

NHK Science and Technical Research Laboratories, Human and Information Science Division, 1-10-11 Kinuta, Setagaya-ku, Tokyo 158-8510, Japan

J. Electron. Imaging. 17(2), 023014 (May 19, 2008). doi:10.1117/1.2920336
History: Received July 27, 2005; Revised June 04, 2007; Accepted December 14, 2007; Published May 19, 2008
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We developed an experimental ultrahigh-definition color video camera [7680(H)×4320(V)pixels] using four 8-million-pixel charge-coupled devices (CCDs) to increase the camera’s resolution. This involves attaching four CCDs to a special color separation prism. Two CCDs are used for the green image; the other two are used for the red and blue images. Our prototype camera attains a limiting resolution of more than 2700 television lines, both horizontally and vertically. Camera sensitivity is F/2.8 at 2000 lux, with a luminance signal dark-noise level of approximately 50dB in high definition television format. To analyze camera performance, we estimated the spatial position error between the two green CCDs and the chromatic aberration. Based on these estimations, the cause of resolution deterioration and ways to improve resolution are discussed.

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© 2008 SPIE and IS&T

Citation

Kohji Mitani ; Masayuki Sugawara ; Hiroshi Shimamoto ; Takayuki Yamashita and Fumio Okano
"Ultrahigh-definition color video camera system with 8K×4K pixels", J. Electron. Imaging. 17(2), 023014 (May 19, 2008). ; http://dx.doi.org/10.1117/1.2920336


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