素材伝送用サブバンド映像符号化方式の一検討 : 画像応用

抄録

With the evolution toward a broadband digital network, nationwide image-signal transmission systems will be constructed in order to offer a high-quality and reliable service to customers. The largest users of image transmission systems will be broadcasting stations. For contribution of image signals inside a studio and between studios or broadcasting stations, the capability for multiple encoding and decoding of the signals without visible degradation is required. The best would be if there are no quantization-noises at all. This paper presents a subband coding which has the possibility of errorfree encoding. Ah architecture, of short-kernel subband filters which can reduce the entropy of subband signals is proposed.