42 search results - page 5 / 9 » A lattice vector quantizer for generalized Gaussian sources |
CISS
2010
IEEE
12 years 11 months ago
2010
IEEE
—Frame permutation quantization (FPQ) is a new vector quantization technique using finite frames. In FPQ, a vector is encoded using a permutation source code to quantize its fra...
DCC
1996
IEEE
13 years 11 months ago
1996
IEEE
The block processing inherent in the use of traditional vector quantization (VQ) schemes typically gives rise to perceptually distracting blocking artifacts. We demonstrate that s...
TIT
2002
13 years 7 months ago
2002
Abstract--Zador's classic result for the asymptotic high-rate behavior of entropy-constrained vector quantization is recast in a Lagrangian form which better matches the Lloyd...
DCC
2008
IEEE
14 years 7 months ago
2008
IEEE
We discuss the use of lattice vector quantizers in conjunction with a quadtree-based sorting algorithm for the compression of multidimensional data sets, as encountered, for examp...
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...