A fast and accurate characteristic-based rate-quantization model for video transmission

Din-Yuen Chan; Wei-Ta Chien; Chun-Yuan Chang; Cheng-Fu Chou; Ching-Ju Lin; Junn-Yen Hu

doi:10.1117/12.704858

29 January 2007 A fast and accurate characteristic-based rate-quantization model for video transmission

Din-Yuen Chan, Wei-Ta Chien, Chun-Yuan Chang, Cheng-Fu Chou, Ching-Ju Lin, Junn-Yen Hu

Proceedings Volume 6508, Visual Communications and Image Processing 2007; 65082N (2007) https://doi.org/10.1117/12.704858
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

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.

Citation Download Citation

Din-Yuen Chan, Wei-Ta Chien, Chun-Yuan Chang, Cheng-Fu Chou, Ching-Ju Lin, and Junn-Yen Hu "A fast and accurate characteristic-based rate-quantization model for video transmission", Proc. SPIE 6508, Visual Communications and Image Processing 2007, 65082N (29 January 2007); https://doi.org/10.1117/12.704858

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