イメージセンシング技術とその応用 ＣＣＤの低雑音駆動方法

Abstract

A low noise driving method for CCD imaging devices is developed. In the method, a reset pulse is controlled according to the signal level of the CCD. By an evaluation employing a CCD of VGA size, it has become apparent that signal charge acquired from more than 100 pixels can be read continuously without reset pulses at a scene of 1/64 luminance and that low frequency noise whichi is conspicuous in a reproduced picture can be reduced remarkably.