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ICASSP
2009
IEEE
13 years 5 months ago
Outage-based designs for multi-user transceivers
We consider a broadcast channel with multiple antennas at the base station and single-antenna receivers, and we study transceiver design with Quality of Service (QoS) requirements...
Michael Botros Shenouda, Timothy N. Davidson
ICASSP
2009
IEEE
13 years 5 months ago
Blind sparse source separation for unknown number of sources using Gaussian mixture model fitting with Dirichlet prior
In this paper, we propose a novel sparse source separation method that can be applied even if the number of sources is unknown. Recently, many sparse source separation approaches ...
Shoko Araki, Tomohiro Nakatani, Hiroshi Sawada, Sh...
ICASSP
2009
IEEE
14 years 2 months ago
Visual saliency with side information
We propose novel algorithms for organizing large image and video datasets using both the visual content and the associated sideinformation, such as time, location, authorship, and...
Wei Jiang, Lexing Xie, Shih-Fu Chang
ICASSP
2009
IEEE
14 years 2 months ago
Subspace tracking of fast time-varying channels in precoded MIMO-OFDM systems
This paper presents a blind subspace-based tracking scheme for precoded MIMO-OFDM systems over rapidly time-varying wireless channels. Subspace-based tracking is normally consider...
Chao-Cheng Tu, Benoît Champagne
ICASSP
2009
IEEE
14 years 2 months ago
Using filter banks to enhance images for fluid lens cameras based on color correlation
The novel field of fluid lens cameras introduces unique image processing challenges. Intended for surgical applications, these fluid optics systems have improved miniaturizatio...
Jack Tzeng, Truong Q. Nguyen