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

doi:10.1117/12.705337

20 February 2007 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

Author Affiliations +

Proceedings Volume 6502, Digital Photography III; 65020Q (2007) https://doi.org/10.1117/12.705337
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

We developed an experimental single chip color HDTV video image acquisition system with 8M-pixel CMOS image sensor. The imager has 3840 (H) × 2160 (V) effective pixels and built-in analog-to-digital converters, and its frame rate is 60-fps with progressive scanning. The MTF characteristic we measured with this system on luminance signal in horizontal direction was about 45% on 800 TV lines. This MTF was better than conventional three-pickup broadcasting cameras, therefore the enhancement gain (the "enhancement area" in MTF) of the 8M single-chip HDTV system was about a half of the three-pickup cameras. We also measured the color characteristics and corrected the color gamut using matrix gain on primary colors. We set the color correction target similar to that of three-pickup color cameras in order to use multiple cameras to shoot for broadcasting, where all cameras are controlled in the same manner. The color error between the single-chip system and three-pickup cameras after the correction became 2.7, which could be useful in practice.

Citation Download Citation

Hiroshi Shimamoto, Takayuki Yamashita, Ryohei Funatsu, Kohji Mitani, and Yuji Nojiri "Characteristics of experimental single-chip color HDTV image acquisition system with 8M-pixel image sensor", Proc. SPIE 6502, Digital Photography III, 65020Q (20 February 2007); https://doi.org/10.1117/12.705337

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