We investigate the relationship between local and global phase-unwrapping techniques. We demonstrate that both algorithms are based on line integration of an estimate of the phase gradient: the former evaluates the integral along a single path, and the latter averages integrals along many paths. This analysis is extended to the weighted case. We also give an interpretation of the errors caused by an incorrect phase-gradient estimate in terms of path-following integrals.
No takes yet. Share an insight, caveat, or question.
Fornaro et al. (1997) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: