756 search results - page 13 / 152 » Quantization of Sparse Representations |
ICIP
2005
IEEE
14 years 9 months ago
2005
IEEE
We propose a high-performance, nonlinear, loop filter that reduces quantization noise over video frames composed of locally uniform regions (smooth, high frequency, texture, etc.)...
ICIP
2006
IEEE
14 years 9 months ago
2006
IEEE
CISS
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract—Compressive sensing is a new signal acquisition technology with the potential to reduce the number of measurements required to acquire signals that are sparse or compres...
ICIP
2001
IEEE
14 years 9 months ago
2001
IEEE
In lossy image compression schemes utilizing the discrete cosine transform (DCT), quantization of the DCT coefficients introduces error in the image representation and a loss of s...
ICIP
2003
IEEE
14 years 9 months ago
2003
IEEE
The purpose of this paper is to generalize a result by Donoho, Huo, Elad and Bruckstein on sparse representations of signals/images in a union of two orthonormal bases. We conside...