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GLOBECOM
2008
IEEE
14 years 3 months ago
A Low-Complexity Iterative Channel Estimation and Detection Technique for Doubly Selective Channels
— In this paper, we propose a low-complexity iterative joint channel estimation, detection and decoding technique for doubly selective channels. The key is a segment-by-segment f...
Qinghua Guo, Ping Li
ICASSP
2008
IEEE
14 years 3 months ago
High-dynamic range compression using a fast multiscale optimization
to appear in Proc. IEEE Int’l Conf. on Acoustics, Speech, and Signal Processing, March, 2008 High-dynamic-range medical images take intensity values which cannot be visualized o...
Matthieu Maitre, Yunqiang Chen, Tong Fang
ICASSP
2008
IEEE
14 years 3 months ago
Using variational bayes free energy for unsupervised voice activity detection
This paper addresses the problem of Voice Active Detection (VAD) in noisy environments. We introduce Variational Bayes approach to EM for classification to replace the heuristic ...
David Cournapeau, Tatsuya Kawahara
ICCCN
2007
IEEE
14 years 3 months ago
Reduction of Frame Memory Accesses and Motion Estimation Computations in MPEG Video Encoder
—This paper presents an approach that reuses data stored in the frame memory and in the motion estimation (ME) internal buffer to avoid unnecessary memory accesses and redundant ...
Wei-Cheng Lin, Chung-Ho Chen
CC
2007
Springer
118views System Software» more  CC 2007»
14 years 3 months ago
A Practical Escape and Effect Analysis for Building Lightweight Method Summaries
We present a unification-based, context-sensitive escape and effect analysis that infers lightweight method summaries describing heap effects. The analysis is parameterized on two...
Sigmund Cherem, Radu Rugina