METHOD AND DEVICE FOR ENCODING AND DECODING MOVING VIDEO SIMULTANEOUSLY HAVING SPATIAL HIERARCHICAL STRUCTURE AND PICTURE HIERARCHICAL STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a method/device for encoding/decoding moving video simultaneously having spatial hierarchical structure and picture hierarchical structure, which efficiently encoding and transmitting an object when the object especially having an optional form moves consecutively concerning encoding and signal-making of data of moving video.;SOLUTION: This method includes a stage for down-sampling form information and texture information by respective prescribed rate to constitute a single basic layer and at least one high-order layer, a stage for encoding the form information and the texture information of a basic layer to generate a basic big stream and giving frequency conversion encoding to the difference between the decoded texture information and original texture information to constitute the picture hierarchical structure by each frequency band, and a stage for encoding a difference between shape information obtained by up-sampling at the basic layer to each of at least one high-order layer and shape information of the high-order layer to generate the basic big stream of the high-order layer and giving frequency conversion encoding to the difference between the decoded texture information and texture information of the high-order layer to constitute the picture hierarchical structure by each frequency band.;COPYRIGHT: (C)2001,JPO