32 search results - page 1 / 7 » Quantization of Overcomplete Expansions |
DCC
1995
IEEE
14 years 2 months ago
1995
IEEE
The use of overcomplete sets of vectors (redundant bases or frames) together with quantization is explored as an alternative to transform coding for signal compression. The goal i...
ICIP
2000
IEEE
15 years 12 days ago
2000
IEEE
This paper presents a novel wavelet-based image denoising algorithm under overcomplete expansion. In order to optimize the denoising performance, we make a systematic study of bot...
ACIVS
2005
Springer
14 years 4 months ago
2005
Springer
We describe a method for removing quantization artifacts (de-quantizing) in the image domain, by enforcing a high degree of sparseness in its representation with an overcomplete or...
DCC
1999
IEEE
14 years 3 months ago
1999
IEEE
DCC
1999
IEEE
14 years 3 months ago
1999
IEEE
Quantized frame expansions are proposed as a method for generalized multiple description coding, where each quantized coe cient is a description. Whereas previous investigations h...