TY - GEN
T1 - Block-based weighted pixel-value superposition algorithm for inter-frame error concealment
AU - Wu, Xuanguo
AU - Shen, Hong
PY - 2010
Y1 - 2010
N2 - Due to channel noise or congestion, video data packets can be lost when transmit in error-prone networks. In addition, compressed video sequences are very fragile to transmission errors. Most of inter-frame error concealment (EC) methods estimate one motion vector (MV) for a corrupted macroblock (MB) or sub-partition. This may result in part of the boundary of the reconstruction MB or subpartition discontinuous. To solve this problem, in this paper, we propose a block-based weighted pixel-value superposition (BWPS) algorithm for inter-frame EC, which estimates multiple MVs for a corrupted block, predicts the corrupted block using each MV, and then carries out the weighted pixel-value superposition to reconstruct the corrupted block. At the same time, our proposed EC method has a low computation complexity. We also propose a dynamic switch between BWPS algorithm and boundary matching algorithm (BMA) to improve the visual quality of the reconstructed signals. Simulation results show our proposed methods outperform the reference methods in H.264/AVC.
AB - Due to channel noise or congestion, video data packets can be lost when transmit in error-prone networks. In addition, compressed video sequences are very fragile to transmission errors. Most of inter-frame error concealment (EC) methods estimate one motion vector (MV) for a corrupted macroblock (MB) or sub-partition. This may result in part of the boundary of the reconstruction MB or subpartition discontinuous. To solve this problem, in this paper, we propose a block-based weighted pixel-value superposition (BWPS) algorithm for inter-frame EC, which estimates multiple MVs for a corrupted block, predicts the corrupted block using each MV, and then carries out the weighted pixel-value superposition to reconstruct the corrupted block. At the same time, our proposed EC method has a low computation complexity. We also propose a dynamic switch between BWPS algorithm and boundary matching algorithm (BMA) to improve the visual quality of the reconstructed signals. Simulation results show our proposed methods outperform the reference methods in H.264/AVC.
KW - Block-based weighted pixel-value superposition
KW - Error concealment
KW - Flexible macroblock ordering
KW - H.264/AVC
UR - https://www.scopus.com/pages/publications/78049333216
U2 - 10.1109/ICFCC.2010.5497549
DO - 10.1109/ICFCC.2010.5497549
M3 - Conference contribution
AN - SCOPUS:78049333216
SN - 9781424458226
T3 - Proceedings of the 2010 2nd International Conference on Future Computer and Communication, ICFCC 2010
SP - V2619-V2623
BT - Proceedings of the 2010 2nd International Conference on Future Computer and Communication, ICFCC 2010
T2 - 2010 2nd International Conference on Future Computer and Communication, ICFCC 2010
Y2 - 21 May 2010 through 24 May 2010
ER -