| Conference |
| Type of Publication |
| Rate-Distortion Optimal Adaptive Quantization and
Coefficient Thresholding for MPEG Coding |
| Title |
|
Michael Käsemann
Peter H. N. de With
|
| Authors |
| 23rd Symposium on Information Theory in the
Benelux, Louvain-la-Neuve, Belgium, May 2002 |
| Published in |
| This paper presents an MPEG-2 compatible
adaptive quantization algorithm that leads to the optimal
encoding of I-frames in the sense of maximizing PSNR. It
integrates three key features into a single Lagrangian
optimization model: adaptive quantization including
quantizer-change overhead consideration, coefficient
thresholding, and a new coefficient amplitude reduction
technique. Our results show that I-frames generated by the TM5
reference encoder are about 1.5-2.0 dB below the theoretical
optimum. |
| Abstract |
|
Video Compression
MPEG-2
Adaptive Quantization
Dynamic Programming
Optimization
|
| Keywords |
| [PDF]
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| Downloads & Bib-Entries |
