Patent ID: 6459812
Filing Date: 2002-10-01
Classification: H04N

Abstract:
A picture encoding device operable in accordance with a modified MPEG 4 standard, comprising:providing device for providing a plurality of object-based picture sequences which constitute a picture sequence; and object-based picture encoding device for encoding each object-based picture sequence, wherein said object-based picture encoding device includes a quantization device for dividing a picture in said object-based picture sequence into a plurality of blocks having a number of pixels and quantizing the pixels in a macro-block comprising two or more blocks using a pre-set quantization step, and a multiplexing device for multiplexing said quantized pixels in a macro block and said quantization step, wherein, for a B-VOP (video object plane), said multiplexing device does not multiplex said quantization step if all of said quantized pixels in a macro-block of said B-VOP equal zero.