Sciweavers

31 search results - page 3 / 7
» On Zerotree Quantization for Embedded Wavelet Packet Image C...
Sort
View
ICIP
1998
IEEE
13 years 9 months ago
Vector Set-Partitioning with Successive Refinement Voronoi Lattice VQ for Embedded Wavelet Image Coding
: While lattice vector quantization (LVQ) can solve the complexity problem of LBG based vector quantizers, and also yield very general codebooks, a single stage lattice VQ, when ap...
Debargha Mukherjee, Sanjit K. Mitra
ICIP
2005
IEEE
14 years 7 months ago
Embedded image coding with context partitioning and quantization
As a key part of universal source coding, context quantization is very important for improving compression performance. However, in most existing methods, the quantizer is trained...
Hua Cai, Xing San, Jiang Li
MSE
2002
IEEE
143views Hardware» more  MSE 2002»
13 years 10 months ago
Error Resilience of EZW Coder for Image Transmission in Lossy Networks
We investigate the effect of network errors on Embedded Zerotree Wavelet (EZW) encoded images and propose modifications to the EZW coder to increase error resilience in bursty pac...
Shahab Baqai, Farhan A. Baqai, Usman Hameed, Sohai...
DCC
1995
IEEE
13 years 9 months ago
CREW: Compression with Reversible Embedded Wavelets
Compression with Reversible Embedded Wavelets (CREW) is a uni ed lossless and lossy continuous-tone still image compression system. It is wavelet-based using a \reversible" a...
A. Zandi, James D. Allen, Edward L. Schwartz, Mart...
ICIP
2000
IEEE
14 years 7 months ago
Efficient Image and Channel Coding for Wireless Packet Networks
We combine multiple description (MD) quantization, entropy coding, and data partitioning to improve the error resiliency of images over varying packet loss channels. Our proposed ...
P. Greg Sherwood, Xiaodong Tian, Kenneth Zeger