Thursday, March 10, 2011 - 9:00am - 10:00am
Guillermo Sapiro (University of Minnesota, Twin Cities)
In this talk I will describe recent work with Guoshen Yu and
Stephane Mallat on PCA/GMM/structured-sparsity.
I will introduce the framework, show state-of-the-art results
for image restoration and matrix completion, and present
theoretical results regarding compressed sensing of GMM.
Tuesday, October 25, 2011 - 1:30pm - 2:30pm
Leonidas Guibas (Stanford University)
In this talk we consider certain graphs that arise out of matching shapes or images. We begin by exploring how to define isometrically-invariant descriptors of shape neighborhoods and how these can be used to compute maps between shapes. We then analyze map networks with the goal of improving individual maps connecting the shapes. The fact that maps compose algebraically allows certain novel approaches that are not possible when edges encode only some proximity or similarity of the nodes.
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