Two-dimensional Phase Unwrapping for Digital Holography

Abstract

This work describes a method for eliminating the mathematical ambiguity in the phase map for digital holographic images. The technique uses a pre-processing step to smooth the amplitude data and reduce noise in the phase data. The unwrapping algorithm uses both phase gradient calculations and an amplitude measure to determine the reliability of a given data point, and uses a non-continuous path following approach.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2012
Accession Number
ADA570152

Entities

People

  • Justin R. Bickford
  • Karl K. Klett Jr.
  • Neal K. Bambha

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Ambiguity
  • Amplitude
  • Department Of Defense
  • Digital Images
  • Filtration
  • Geometry
  • Holography
  • Images
  • Intensity
  • Low Pass Filters
  • Military Research
  • Noise
  • Reliability
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Optical Physics and Photonics.
  • Radar Systems Engineering.