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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xuanguo Wu Hong Shen |
| Copyright Year | 2010 |
| Description | Author affiliation: Department of Computer Science and Technology, University of Science and Technology of China, China (Xuanguo Wu; Hong Shen) |
| Abstract | 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. |
| File Size | 628350 |
| File Format | |
| ISBN | 9781424458219 |
| e-ISBN | 9781424458240 |
| DOI | 10.1109/ICFCC.2010.5497549 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-05-21 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Flexible Macroblock Ordering Block-Based Weighted Pixel-Value Superposition Video sequences Switches Decoding Partitioning algorithms H.264/AVC Computational complexity Lagrangian functions Error Concealment Computer science Computer errors Streaming media Automatic voltage control |
| Content Type | Text |
| Resource Type | Article |
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