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TMI
2002
88views more  TMI 2002»
13 years 4 months ago
What is the best similarity measure for motion correction in fMRI time series?
It has been shown that the difference of squares cost function used by standard realignment packages (SPM and AIR) can lead to the detection of spurious activations, because the mo...
Luis Freire, Alexis Roche, Jean-Francois Mangin
MICCAI
2002
Springer
14 years 5 months ago
Two-Stage Alignment of fMRI Time Series Using the Experiment Profile to Discard Activation-Related Bias
In this paper, we show that the standard point of view of the neuroimaging community about fMRI time series alignment should be revisited to overcome the bias induced by activation...
Luis Freire, Jean-Francois Mangin
ICRA
2006
IEEE
131views Robotics» more  ICRA 2006»
13 years 11 months ago
Using Reinforcement Learning to Improve Exploration Trajectories for Error Minimization
Abstract— The mapping and localization problems have received considerable attention in robotics recently. The exploration problem that drives mapping has started to generate sim...
Thomas Kollar, Nicholas Roy