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» A lattice vector quantizer for generalized Gaussian sources
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TIP
2008
84views more  TIP 2008»
13 years 7 months ago
Rate Bounds on SSIM Index of Quantized Images
Abstract--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 ...
Sumohana S. Channappayya, Alan C. Bovik, Robert W....
DCC
1998
IEEE
13 years 12 months ago
Optimal Multiple Description Transform Coding of Gaussian Vectors
Multiple description coding (MDC) is source coding for multiple channels such that a decoder which receives an arbitrary subset of the channels may produce a useful reconstruction...
Vivek K. Goyal, Jelena Kovacevic
ANTS
1994
Springer
105views Algorithms» more  ANTS 1994»
13 years 11 months ago
A fast variant of the Gaussian reduction algorithm
We propose a fast variant of the Gaussian algorithm for the reduction of two{ dimensional lattices for the l1; l2; and l1;norm. The algorithm runs in at most O(n M(B) logB) bit op...
Michael Kaib
DCC
2009
IEEE
14 years 8 months ago
Optimization of Correlated Source Coding for Event-Based Monitoring in Sensor Networks
Motivated by the paradigm of event-based monitoring, which can potentially alleviate the inherent bandwidth and energy constraints associated with wireless sensor networks, we con...
Jaspreet Singh, Ankur Saxena, Kenneth Rose, Upaman...
SODA
2012
ACM
217views Algorithms» more  SODA 2012»
11 years 10 months ago
Deterministic construction of an approximate M-ellipsoid and its applications to derandomizing lattice algorithms
We give a deterministic O(log n)n -time and space algorithm for the Shortest Vector Problem (SVP) of a lattice under any norm, improving on the previous best deterministic nO(n) -...
Daniel Dadush, Santosh Vempala