Chen, HongQuan (2003) Transcoding of MPEG-4 compressed video. Masters thesis, Concordia University.
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Abstract
MPEG-4 is an ISO/IEC standard, developed by the MPEG (Moving Picture Experts Group). The transmission of MPEG-4 compressed video over channels with different capacities may require a reduction in bit rate if the transmission media has a lower capacity than the capacity required by the bitstream. There are many different approaches to this problem of bit rate conversion. A feasible and effective method is transcoding. The emphasis in this thesis is on transcoding of MPEG-4 compressed video both in the pixel domain and in the DCT domain. In the pixel domain, (joint) transcoding of MPEG-4 compressed video with drift error correction is discussed in this thesis. In the DCT domain, a new DCT Coefficient Translation and Truncation Transformation Matrix (DCTTTM) based motion composition scheme is proposed, and several suboptimal approaches to reducing the computational complexity are discussed. In addition, frame-skipping transcoding of MPEG-4 compressed bitstreams in the DCT domain is addressed as well.
| Divisions: | Concordia University > Faculty of Engineering and Computer Science > Electrical and Computer Engineering |
|---|---|
| Item Type: | Thesis (Masters) |
| Authors: | Chen, HongQuan |
| Pagination: | xvi, 128 leaves : ill. ; 29 cm. |
| Institution: | Concordia University |
| Degree Name: | Theses (M.A.Sc.) |
| Program: | Dept. of Electrical and Computer Engineering |
| Date: | 2003 |
| Thesis Supervisor(s): | Lynch, W. E |
| ID Code: | 2404 |
| Deposited By: | Concordia University Libraries |
| Deposited On: | 27 Aug 2009 13:28 |
| Last Modified: | 14 Dec 2012 16:37 |
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