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» On sparse signal representations
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IPMI
2001
Springer
16 years 7 months ago
Estimation of Baseline Drifts in fMRI
This work provides a new method to estimate and remove baseline drifts in the fMRI signal. The baseline drift in each time series is described as a superposition of physical and ph...
François G. Meyer, Gregory McCarthy
AVSS
2009
IEEE
16 years 1 months ago
Context-Based Reasoning Using Ontologies to Adapt Visual Tracking in Surveillance
— Classical tracking methods are often insufficient when dealing with complex scenarios. In order to solve tracking errors, innovative techniques based on the use of information ...
Juan Gómez-Romero, Miguel A. Patricio, Jes&...
ICASSP
2009
IEEE
16 years 1 months ago
Comparison of MPEG-7 descriptors for long term selection of reference frames
During the last years, the amount of multimedia content has greatly increased. This has multiplied the need of efficient compression of the content but also the ability to search...
Javier Ruiz Hidalgo, Philippe Salembier
ICASSP
2009
IEEE
16 years 1 months ago
Energy-efficient graph-based wavelets for distributed coding in Wireless Sensor Networks
This work presents a class of unidirectional lifting-based wavelet transforms for an arbitrary communication graph in a wireless sensor network. These transforms are unidirectiona...
Godwin Shen, Sundeep Pattem, Antonio Ortega
ICASSP
2008
IEEE
16 years 27 days ago
NeSh: A joint shadowing model for links in a multi-hop network
Accurate analysis and simulation in multi-hop (sensor, ad hoc, and mesh) networks requires accurate representation of physical layer fading processes. Current models either ignore...
Neal Patwari, Piyush Agrawal