A new phase-unwrapping algorithm is described that uses two phase images with different precision in the unwrapping; this technique can produce an approximately correct unwrapping in the presence of discontinuities. We introduce it into the measurement of a three-dimensional object shape and also present the experimental results.
© 1994 Optical Society of America
Original Manuscript: August 16, 1993
Revised Manuscript: January 6, 1994
Published: July 10, 1994
Hong Zhao, Wenyi Chen, and Yushan Tan, "Phase-unwrapping algorithm for the measurement of three-dimensional object shapes," Appl. Opt. 33, 4497-4500 (1994)