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CORR
2011
Springer
191views Education» more  CORR 2011»
14 years 6 months ago
A Message-Passing Receiver for BICM-OFDM over Unknown Clustered-Sparse Channels
We propose a factor-graph-based approach to joint channel-estimationand-decoding of bit-interleaved coded orthogonal frequency division multiplexing (BICM-OFDM). In contrast to ex...
Philip Schniter
CGF
2010
139views more  CGF 2010»
14 years 6 months ago
Visualization of Large-Scale Urban Models through Multi-Level Relief Impostors
In this paper, we present an efficient approach for the interactive rendering of large-scale urban models, which can be integrated seamlessly with virtual globe applications. Our ...
Carlos Andújar, Pere Brunet, Antoni Chica, ...
ICASSP
2011
IEEE
14 years 3 months ago
Error detection scheme based on fragile watermarking for H.264/AVC
Compressed video bitstreams are very sensitive to transmission errors. If we lose packets or receive them with errors during transmission, not only the current frame will be corru...
Man-Geun Ko, Jae-Won Suh, Jang-Eui Hong
FSE
2011
Springer
264views Cryptology» more  FSE 2011»
14 years 3 months ago
An Improved Algebraic Attack on Hamsi-256
Hamsi is one of the 14 second-stage candidates in NIST’s SHA-3 competition. The only previous attack on this hash function was a very marginal attack on its 256-bit version publi...
Itai Dinur, Adi Shamir
CCP
2011
136views more  CCP 2011»
13 years 11 months ago
Fast Implementation of Block Motion Estimation Algorithms in Video Encoders
This project will involve analysing some of the newer fast algorithms in comparison with an exhaustive full search algorithm for motion estimation in video encoders. It will invest...
Naga Rohini Koduri, Mqhele E. Dlodlo, Gerhard de J...