デジタルカメラにおける静止画と動画の処理と画質

抄録

Newly developed digital camera, RICOH DC-1 has unique features of various recording modes such as still image, still image with sound, motion pictures, and sound only. Specifically for the realization of recording and playing back of both still and motion pictures, newly developed technology was used. That is, digital image processor, IPP(Image Pre-Processor) and LSI to fast compression/decompression, read/write to and from memory card. Still image can be record and played back in full frame at vertical resolution of 400TVlines. Also by means of 5 line processing, frequency response of signal can be most properly adjusted, and by upgrading of color reproduction, high quality image is obtained. Motion pictures is record/played back by Motion JPEG method and is processed at the very fast speed of 60 fields per second.