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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dongdong Li Yu Sun Zhidan Feng |
| Copyright Year | 2005 |
| Description | Author affiliation: Dept. of Electr. Eng., Texas Univ., Arlington, TX (Dongdong Li) |
| Abstract | We propose a novel rate control algorithm for real-time video transmission over wireless systems, which encompass power control technique, region-based rate control strategy and a macroblock-based segmentation method. By allocating more power as well as more bits to the regions of interest of a video frame and less power & fewer bits to the rest regions, the algorithm improves the visual quality of the regions of interest while saving bits, and also adapts to time-varying wireless channels. When compared with the fixed power MPEG-4 rate control algorithm, the proposed algorithm successfully improves perceptual quality, reduces frame skipping and enhances motion continuity in wireless video transmission, while the total power is kept at the original level |
| Starting Page | 5 |
| Ending Page | 2168 |
| File Size | 296467 |
| Page Count | 2164 |
| File Format | |
| ISBN | 0780394143 |
| DOI | 10.1109/GLOCOM.2005.1578047 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-11-28 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Control systems Real time systems Bit rate Video compression MPEG 4 Standard Centralized control Power control Bandwidth Automatic repeat request Throughput |
| Content Type | Text |
| Resource Type | Article |
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