39 search results - page 5 / 8 » Optimal parameter estimation for model-based quantization |
CVPR
2004
IEEE
15 years 11 months ago
2004
IEEE
Model-based clustering of motion trajectories can be posed as the problem of learning an underlying mixture density function whose components correspond to motion classes with dif...
ITCC
2000
IEEE
15 years 2 months ago
2000
IEEE
Standard JPEG decompression reconstructs quantized DCT coefficients to the center of the quantization bin. This fails to exploit the nonuniform distribution of the AC coefficien...
ICMCS
2005
IEEE
15 years 3 months ago
2005
IEEE
The major complexity source in H.264 is the rate distortion (R-D) optimization. This work proposes a method to reduce the complexity of R-D analysis, paying a little video degrada...
ICIP
2005
IEEE
15 years 11 months ago
2005
IEEE
Appropriate rate control plays a very important role in encoding motion pictures under the constant bit-rate. One of the requirements for rate control is minimizing temporal fluct...
ICMCS
2006
IEEE
15 years 3 months ago
2006
IEEE
We examine the bit rate variability-distortion (VD) curve of I, P, and B frames of MPEG-4 VBR encoded video sequences. We show that the concave VD curve shape at high compression ...