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Study mode:
on
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Main collaborators
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Compressed sensing and imaging
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Impact of compressive imaging
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Compressed sensing theory
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Matrices satisfying the RIP
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Second paradox: the inverse square law is suboptimal
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Which patterns are used in practice?
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The binary world
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Remainder of the talk
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Setup
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Fourier measurements: ID case
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dD case: Dyadic Isotropic Sampling (DIS)
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Optimal encoder-decoder pairs
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Near-optimal Fourier encoder-decoders
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Remarks
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Idea behind the optimal strategy
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Idea behind the Fourier strategy
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Four recommendations for sampling strategy design
Description:
Explore the groundbreaking field of compressive imaging in this 41-minute conference talk by Ben Adcock from Simon Fraser University. Delve into the paradoxical effectiveness of compressed sensing and imaging techniques, examining their impact and theoretical foundations. Investigate the properties of matrices satisfying the Restricted Isometry Property (RIP) and challenge conventional wisdom about the inverse square law. Analyze practical sampling patterns, including the binary world and Fourier measurements in both 1D and dD cases. Discover optimal encoder-decoder pairs and near-optimal Fourier strategies. Gain valuable insights into sampling strategy design with four key recommendations. This talk, part of the Isaac Newton Institute's workshop on "Approximation, sampling and compression in data science," bridges various mathematical disciplines and fosters collaboration among researchers in data science, computational statistics, machine learning, optimization, information theory, and learning theory. Read more

On the Unreasonable Effectiveness of Compressive Imaging - Ben Adcock, Simon Fraser University

Alan Turing Institute
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