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128
Voted
ICASSP
2009
IEEE
15 years 8 months ago
Quadtree structured restoration algorithms for piecewise polynomial images
Iterative shrinkage of sparse and redundant representations are at the heart of many state of the art denoising and deconvolution algorithms. They assume the signal is well approx...
Adam Scholefield, Pier Luigi Dragotti
96
Voted
ICASSP
2009
IEEE
15 years 8 months ago
Q-SIFT: Efficient feature descriptors for distributed camera calibration
We consider camera self-calibration, i.e. the estimation of parameters for camera sensors, in the setting of a visual sensor network where the sensors are distributed and energy-c...
Chao Yu, Gaurav Sharma
133
Voted
ICASSP
2009
IEEE
15 years 8 months ago
Cross-layer optimization of wireless fading ad-hoc networks
This paper introduces an algorithm to approximately find optimal wireless networks in presence of fading. Joint optimization of application level rates, routes, link capacities, ...
Nikolaos Gatsis, Alejandro Ribeiro, Georgios B. Gi...
96
Voted
ICASSP
2009
IEEE
15 years 8 months ago
Bayesian sparse image reconstruction for MRFM
In this paper, we propose a Bayesian model and a Monte Carlo Markov chain (MCMC) algorithm for reconstructing images that consist of only few non-zero pixels. An appropriate distr...
Nicolas Dobigeon, Alfred O. Hero, Jean-Yves Tourne...
99
Voted
ICASSP
2009
IEEE
15 years 8 months ago
Document reconstruction using dynamic programming
In this work we propose a methodology for document reconstruction based on dynamic programming and a modified version of the Prim’s algorithm. Firstly, we use polygonal approxi...
Andre Pimenta, Edson J. R. Justino, Luiz S. Olivei...