Type:
Journal
Description:
We present, for the first time to the best of our knowledge, a phase unwrapping method based on an algorithm which makes use of Green's first identity. This method aims at recovering the correct phase information encoded in a fringe pattern after digital holography (DH) numerical processing. DH provides a quantitative measurement of the three-dimensional surface profile of objects. The information about the profile can be obtained in principle from the phase-map. However, the measured phase-map provides the actual phase values wrapped mod.2π so that an unwrapping process is required in order to reconstruct the object profile.
Publisher:
Elsevier
Publication date:
1 Jun 2007
Biblio References:
Volume: 45 Issue: 6 Pages: 750-755
Origin:
Optics and lasers in engineering