A phase unwrapping algorithm for 3D reconstruction

H. Zhang, H. Su, X. Y. Su

Research output: Contribution to book or proceedingConference articlepeer-review

4 Scopus citations

Abstract

Phase unwrapping algorithms play an important role in noncontact optical profilometries such as phase-measuring profilometry. The depth information of the measured object is implicitly defined by certain trigonometric equations derived from image data. The direct solutions to the equations, called the wrapped phases, have a limited range from -π to πn. The main computational problem is to unwrap the wrapped phases over the entire image. This phase unwrapping process is often hindered by the presence of noises, spots of low intensity modulation, and instability of the solutions. We present a novel approach to the problem by formulating the phase solving and unwrapping as an ill-posed problem. By using the regularization method, we will be able to provide a unified view to address various challenges in the problem. A new fully automated algorithm for phase unwrapping based on this approach is also presented.

Original languageEnglish
Title of host publicationProceedings - SNPD 2007
Subtitle of host publicationEighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
Pages611-615
Number of pages5
DOIs
StatePublished - 2007
EventSNPD 2007: 8th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Qingdao, China
Duration: Jul 30 2007Aug 1 2007

Publication series

NameProceedings - SNPD 2007: Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
Volume2

Conference

ConferenceSNPD 2007: 8th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
Country/TerritoryChina
CityQingdao
Period07/30/0708/1/07

Scopus Subject Areas

  • Software
  • Hardware and Architecture

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