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

被引：3

作者：

Mitani, Kohji ^{[1
]}

Sugawara, Masayuki ^{[1
]}

Shimamoto, Hiroshi ^{[1
]}

Yamashita, Takayuki ^{[1
]}

Okano, Fumio ^{[1
]}

机构：

[1] NHK Japan Broadcasting Corp, Human & Informat Sci Div, Setagaya Ku, Tokyo 1588510, Japan

来源：

JOURNAL OF ELECTRONIC IMAGING | 2008年 / 17卷 / 02期

关键词：

Color - Pixels - Digital television - Video cameras - Aberrations - High definition television;

D O I：

10.1117/1.2920336

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We developed an experimental ultrahigh-definition color video camera [7680(H) X 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 50 dB 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. (C) 2008 SPIE and IS&T.

引用

页数：8

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