Error Concealment Scheme for H.263 Coded Video Transmissions

摘要

A new error concealment method is proposed that uses motion estimation considering actual motions in moving pictures. Since many videos include a variety of complex 3-D motions, such as rotation, magnification, reduction, and parallel motion, the proposed error concealment method uses an affine transform, which divides lost macroblocks into triangular patches and then considers six motion parameters to produce accurate motion estimations for videos including complex motions. When compared to conventional error concealment methods that only handle parallel motions, the proposed method is able to estimate the motion of lost data more accurately, thereby producing a higher PSNR value and better subjective video quality.