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ICMCS
2005
IEEE
122views Multimedia» more  ICMCS 2005»
15 years 3 months ago
Evaluating Perceptually Prefiltered Video
Perceptual prefiltering is the process of enhancing relevant portions of an image or of a video, and of simplifying contextual information in order to improve the perceived quali...
Olivier Steiger, Touradj Ebrahimi, Andrea Cavallar...
ICASSP
2011
IEEE
14 years 1 months ago
Look ahead orthogonal matching pursuit
For compressive sensing, we endeavor to improve the recovery performance of the existing orthogonal matching pursuit (OMP) algorithm. To achieve a better estimate of the underlyin...
Saikat Chatterjee, Dennis Sundman, Mikael Skoglund
ECIR
2011
Springer
14 years 1 months ago
SkipBlock: Self-indexing for Block-Based Inverted List
In large web search engines the performance of Information Retrieval systems is a key issue. Block-based compression methods are often used to improve the search performance, but c...
Stéphane Campinas, Renaud Delbru, Giovanni ...
105
Voted
TIT
2010
130views Education» more  TIT 2010»
14 years 4 months ago
Pseudo-random functions and parallelizable modes of operations of a block cipher
This paper considers the construction and analysis of pseudo-random functions (PRFs) with specific reference to modes of operations of a block cipher. In the context of message aut...
Palash Sarkar
ICIP
2006
IEEE
15 years 11 months ago
Interpolation Free Sub-Pixel Motion Estimation for H.264
Sub-pixel motion compensation plays an important role in compression efficiency within modern video codecs such as MPEG2, MPEG4 and H.264. Sub-pixel motion compensa tion is implem...
Paul R. Hill, Tuan-Kiang Chiew, David R. Bull