An Efficient Error Concealment Algorithm in Wireless Video Communication
CHEN Yu
HUANG Zhihua
YUAN Linfeng
Abstract：To overcome the degradation of video quality caused by compressed data loss or error in wireless video communica‐tion ,a novel temporal error concealment algorithm based on location relationship of coordinate is proposed .For a lost 4 × 4 block , the blocks surrounding the lost block are first projected to points in 3D space .Then ,according to these points a plane is constituted which presents the motion vector changing tendency .Finally ,the recovery motion vector is obtained by calculating the coordinate of the lost block in the plane .The simulation results show that compared with the traditional algorithms ,the proposed algorithm can obtain better reconstruction quality in different video sequences and different rates of lost block .
Keywords：wireless video communicationerror concealmenttemporal replacementboundary matching algorithmmotion vector recovery
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 38-40,53 )