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5 May 1994 Four-chip CCD camera for HDTV
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Proceedings Volume 2173, Image Acquisition and Scientific Imaging Systems; (1994)
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States
In an effort to realize a compact HDTV camera with high performance, we have developed a prototype equipped with four 2/3-inch CCDs. A smaller image format is preferable for downsizing TV cameras. However, this causes shrinkage of the unit pixel size and inevitably makes it more difficult to produce an image-pickup device with required HDTV qualities, especially sensitivity, and dynamic range. We have overcome this problem by using CCD imagers with high performance but with a relatively small number of pixels and by increasing the number of CCD chips used in a camera to secure the necessary spatial sampling points for HDTV. In the newly developed color-separating system of the camera, two of the four CCDs are assigned for the green (G) light component and one each for red (R) and blue (B). We succeeded in improving the resolution by introducing spatial pixel offset imaging. This new method has two major advantages: it prevents resolution degradation caused by chromatic aberration and improves the resolution of colored signals over a wide range.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Masayuki Sugawara, Kohji Mitani, Toshinori Saitoh, Yoshihiro Fujita, and Keisuke Suetsugi "Four-chip CCD camera for HDTV", Proc. SPIE 2173, Image Acquisition and Scientific Imaging Systems, (5 May 1994);

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