A fast and accurate characteristic-based rate-quantization model for video transmission.
Journal
Visual Communications and Image Processing 2007, VCIP 2007, San Jose, CA, United States, 28 January - 1 February 2007
Pages
65082N
Date Issued
2007
Author(s)
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.
Type
conference paper