Abstract

Phase unwrapping of interference patterns is a well recognized problem, important in surface profiling and wavefront detection, [e.g. 1]. The wrapped phase function is a non-bandlimited function meaning there is no adequate sampling rate in the neighborhood of the wrapped regions. Previously, authors such as Tribolet [2] have tried to deal with ID unwrapping uncertainties by using an adaptive sampling scheme along with continuity arguments. This approach, while frequently successful, is tedious at best. Other approaches involve taking least squares or Bayesian techniques [e.g. 3].

© 1996 Optical Society of America