Tikhonov Regularization of Circle-Valued Signals

Laurent Pierre Condat

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish (US)
Pages (from-to)1-1
Number of pages1
JournalIEEE Transactions on Signal Processing
DOIs
StatePublished - Jun 3 2022

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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