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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chander, V. Reddy, A. Gaurav, S. Khanwalkar, N. Kakhani, M. Tapaswi, S. |
| Copyright Year | 2009 |
| Abstract | Video communication over the Internet is becoming increasingly popular today. Transmission of videos over networks has always been a problem due to reasons like high bandwidth requirement, lossy channels (especially wireless links, low bit rate two way communication links etc), huge file sizes and the large variety of end terminals with different constraints. In this paper, we limit ourselves to solving the problem of bandwidth and end terminal frame rate requirements in the context of video content distribution over the internet. We propose an efficient temporal transcoding architecture in which motion change is considered. For motion vector composition, both bilinear interpolation vector selection (BIVS) and forward dominant vector selection (FDVS) are used. Our architecture operates entirely in the DCT domain, unlike some architectures, which operate partially or fully in the pixel domain, thus avoiding computationally expensive operations of inverse DCT and DCT. The re-encoding errors are also minimized. The macro block coding types are re-judged to reduce drift errors. We have implemented the algorithms and carried out experiments for Mpeg 1 video sequences and the results are found to be promising. |
| Starting Page | 91 |
| Ending Page | 97 |
| File Size | 295060 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781424433346 |
| DOI | 10.1109/ICCET.2009.174 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-01-22 |
| Publisher Place | Singapore |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Context Video transcoding DCT domain Transcoding motion based frame skipping Interpolation Bit rate Computer architecture Bandwidth Propagation losses prediction error re-calculation Internet Discrete cosine transforms Block codes motion vector composition |
| Content Type | Text |
| Resource Type | Article |
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