Questions are raised concerning the uniqueness of solutions to the phase-retrieval problem for functions with disconnected support. A counterexample is presented showing the importance of considering the flipping of infinite proper subsets of nonreal zeros.
© 1981 Optical Society of America
T. R. Crimmins and J. R. Fienup, "Ambiguity of phase retrieval for functions with disconnected support," J. Opt. Soc. Am. 71, 1026-1028 (1981)