TY - GEN
T1 - A phase unwrapping algorithm for 3D reconstruction
AU - Zhang, H.
AU - Su, H.
AU - Su, X. Y.
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=35148892744&partnerID=8YFLogxK
U2 - 10.1109/SNPD.2007.424
DO - 10.1109/SNPD.2007.424
M3 - Conference article
AN - SCOPUS:35148892744
SN - 0769529097
SN - 9780769529097
T3 - Proceedings - SNPD 2007: Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
SP - 611
EP - 615
BT - Proceedings - SNPD 2007
T2 - SNPD 2007: 8th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
Y2 - 30 July 2007 through 1 August 2007
ER -