91 search results - page 8 / 19 » On Transform Coding with Dithered Quantizers |
DCC
2000
IEEE
14 years 2 days ago
2000
IEEE
This paper contains two contributions to very-low-bitrate video coding. First, we show that in contrast to common practice incremental techniques for rate-distortion optimization ...
DCC
2008
IEEE
14 years 7 months ago
2008
IEEE
The combination of intra prediction, transform, and quantization in the H.264/AVC video coding standard offers high compression performance in picture areas where inter prediction...
TIP
1998
13 years 7 months ago
1998
—Two new design techniques for adaptive orthogonal block transforms based on vector quantization (VQ) codebooks are presented. Both techniques start from reference vectors that a...
ICIP
1997
IEEE
14 years 9 months ago
1997
IEEE
This paper presents a new restoration approach to reduce coding artifacts in block-transform image coding. Di erent from conventional restoration techniques, the proposed one is n...
DCC
2008
IEEE
13 years 9 months ago
2008
IEEE
In this paper, we derive bounds on the Structural SIMilarity (SSIM) Index as a function of quantization rate for fixed-rate uniform quantization of image discrete cosine transform...