title: Phase-error correction for multiple planes using a sharpness metric.
abstract: Phase errors in multiple planes create an anisoplanatic (space-variant) blur in an image. We show how phase errors in multiple planes can be corrected with the use of a sharpness metric for heterodyne or holographic imaging. We derive the theoretical framework necessary for this anisoplanatic imaging situation. A digital simulation and results are presented. We demonstrate the success of this nonlinear optimization technique for phase errors in two planes.
authors.affiliation: The Institute of Optics, University of Rochester, Rochester, NY 14627, USA.
authors.forename: Abbie E
authors.initials: AE
authors.lastname: Tippie
authors.forename: James R
authors.initials: JR
authors.lastname: Fienup