21 search results - page 2 / 5 » Model based analysis for quantization parameter cascading in... |
PCM
2004
Springer
13 years 10 months ago
2004
Springer
Compared with previous video coding standards, H.264/AVC employs a division-free quantization scheme. The relation between quantization parameter and quantization step changes from...
ICIP
1997
IEEE
14 years 6 months ago
1997
IEEE
In this paper we present a model-based algorithm for the estimation of 3D motion and the analysis of facial expressions of a speaking person. A set of facial animation parameters ...
MLMI
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. This paper proposes an analysis technique for wide-band audio applications based on the predictability of the temporal evolution of Quadrature Mirror Filter (QMF) sub-ban...
ICW
2005
IEEE
13 years 10 months ago
2005
IEEE
The MPEG-4 standard includes support not only for natural video and audio, but also for synthetic graphics and sounds. In the MPEG-4 specifications, Body Animation Parameters (BAP...
ICIP
2008
IEEE
14 years 6 months ago
2008
IEEE
In this paper, we analyze the formation of blocking artifacts as a result of quantization of the discrete cosine transform (DCT) coefficients. These artifacts are known to be the ...