A VIDEO TRANSCODING SCHEME FOR E-LEARNING MULTIMEDIA APPLICATIONS

Pedro Assuncao, Nuno Santos

Abstract

In this paper, we propose a segmentation based transcoding scheme for adapting MPEG-2 e-learning visual contents to heterogeneous environments. This is achieved by converting MPEG-2 video into MPEG-4 video objects with arbitrary shape and different semantic value in e-learning context. The transcoding scheme is based on a hybrid segmentation method, which employs both compressed and pixel domain techniques, for extraction of two video objects from MPEG-2 streams. The objective is two-fold: i) to enable individual object coding and manipulation; ii) to increase the scene coding efficiency. The results show that our hybrid segmentation method is capable of identifying the video objects of interest with good accuracy. Moreover, the transcoding efficiency of the proposed scheme is better than straightforward conversion from MPEG-2 to MPEG-4.

References

  1. Assuncao P. and Ghanbari M, 1998. A frequency domain transcoder for dynamic bit rate reduction MPEG-2 bit streams, IEEE Transactions on Circuits and Systems for Video Technology, Vol. 8, No 8, pp. 953-967.
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Paper Citation


in Harvard Style

Assuncao P. and Santos N. (2004). A VIDEO TRANSCODING SCHEME FOR E-LEARNING MULTIMEDIA APPLICATIONS . In Proceedings of the First International Conference on E-Business and Telecommunication Networks - Volume 3: ICETE, ISBN 972-8865-15-5, pages 278-283. DOI: 10.5220/0001397702780283


in Bibtex Style

@conference{icete04,
author={Pedro Assuncao and Nuno Santos},
title={A VIDEO TRANSCODING SCHEME FOR E-LEARNING MULTIMEDIA APPLICATIONS},
booktitle={Proceedings of the First International Conference on E-Business and Telecommunication Networks - Volume 3: ICETE,},
year={2004},
pages={278-283},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001397702780283},
isbn={972-8865-15-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on E-Business and Telecommunication Networks - Volume 3: ICETE,
TI - A VIDEO TRANSCODING SCHEME FOR E-LEARNING MULTIMEDIA APPLICATIONS
SN - 972-8865-15-5
AU - Assuncao P.
AU - Santos N.
PY - 2004
SP - 278
EP - 283
DO - 10.5220/0001397702780283