METHOD OF APPROXIMATING MOTION VECTOR, COMPUTER PROGRAM FOR CARRYING OUT THE SAME METHOD, DATA STORAGE MEDIUM FOR STORING THE SAME PROGRAM, APPARATUS SUITABLE TO CARRY OUT THE SAME METHOD, AND RECEIVER EQUIPPED WITH THE SAME APPARATUS

摘要

PROBLEM TO BE SOLVED: To approximate a lost or damaged motion vector to replace a damaged image block with a motion-compensated block of a preceding frame.;SOLUTION: The method of approximating the motion vector includes: deriving a first set of vectors from motion vectors of neighboring blocks in the same frame and the corresponding block and its neighboring blocks in one or more preceding and/or subsequent frames; deriving a set of candidate vectors from one or more motion vectors of neighboring blocks in the same frame and the corresponding block and its neighboring blocks in one or more preceding and/or subsequent frames; analyzing the first set of vectors; and selecting one of the candidate vectors on the basis of the analysis.;COPYRIGHT: (C)2004,JPO