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Transcoding of MPEG-4 compressed video

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Transcoding of MPEG-4 compressed video

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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