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Proceedings Paper

A fast and accurate characteristic-based rate-quantization model for video transmission
Author(s): Din-Yuen Chan; Wei-Ta Chien; Chun-Yuan Chang; Cheng-Fu Chou; Ching-Ju Lin; Junn-Yen Hu
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Paper Abstract

In this paper, we analyze the limitation of ρ-domain based rate-quantization (R-Q) model. We find out that a characteristic-based R-Q model can be derived from ρ-domain to q-domain. Experimental data show that such a characteristic-based R-Q model can provide a more accurate estimation of the actual bitrate than existing models for both frame-level and macroblock(MB)-level. In addition, a simple analysis of computational complexity of our quantization-free characteristics extraction framework shows that our model is faster than existing variance and ρ-domain based R-Q models.

Paper Details

Date Published: 29 January 2007
PDF: 9 pages
Proc. SPIE 6508, Visual Communications and Image Processing 2007, 65082N (29 January 2007); doi: 10.1117/12.704858
Show Author Affiliations
Din-Yuen Chan, National Chiayi Univ. (Taiwan)
Wei-Ta Chien, National Chiayi Univ. (Taiwan)
Chun-Yuan Chang, National Taiwan Univ. (Taiwan)
Cheng-Fu Chou, National Taiwan Univ. (Taiwan)
Ching-Ju Lin, National Taiwan Univ. (Taiwan)
Junn-Yen Hu, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 6508:
Visual Communications and Image Processing 2007
Chang Wen Chen; Dan Schonfeld; Jiebo Luo, Editor(s)

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