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Generalized sampling and infinite-dimensional compressed sensing

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will discuss a generalization of the Shannon Sampling Theorem that allows for reconstruction of signals in arbitrary bases. Not only can one reconstruct in arbitrary bases, but this can also be done in a completely stable way. When extra information is available, such as sparsity or compressibility of the signal in a particular bases, one may reduce the number of samples dramatically. This is done via Compressed Sensing techniques, however, the usual finite-dimensional framework is not sufficient. To overcome this obstacle I’ll introduce the concept of Infinite-Dimensional Compressed Sensing.

This talk is part of the LMS Invited Lectures 2011 series.

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Buckingham House Lecture Theatre, Murray Edwards College, University of Cambridge, Huntingdon Road, Cambridge CB3 0DF Free beat IoA Dynamics Lunch

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