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    Tikhonov Regularization of Circle-Valued Signals

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    Type
    Preprint
    Authors
    Condat, Laurent Pierre
    KAUST Department
    Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division
    Visual Computing Center (VCC)
    Date
    2021-08-05
    Permanent link to this record
    http://hdl.handle.net/10754/670569
    
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    Abstract
    It is common to have to process signals or images whose values are cyclic and can be represented as points on the complex circle, like wrapped phases, angles, orientations, or color hues. We consider a Tikhonov-type regularization model to smoothen or interpolate circle-valued signals defined on arbitrary graphs. We propose a convex relaxation of this nonconvex problem as a semidefinite program, and an efficient algorithm to solve it.
    Publisher
    arXiv
    arXiv
    2108.02602
    Additional Links
    https://arxiv.org/pdf/2108.02602.pdf
    Collections
    Preprints; Visual Computing Center (VCC); Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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