Acousto-optic processing of images is based on the angular selectivity of acousto-optic interaction resulting in spatial filtration of the image spectrum. We present recent theoretical and experimental investigations carried out in this field. Much attention is given to the analysis of the acousto-optic cell transfer function form depending on the crystal cut, the geometry of acousto-optic interaction, and the ultrasound frequency. Computer simulation results of the two-dimensional acousto-optic spatial filtration of some elementary images are presented. A new method of phase object visualization is suggested and examined that makes it possible to separate amplitude and phase information contained in an optical image. The potentialities of the acousto-optic image processing are experimentally demonstrated by examples of edge enhancement and optical wavefront visualization effects.
© 2008 Optical Society of America
Original Manuscript: August 1, 2008
Revised Manuscript: October 7, 2008
Manuscript Accepted: October 7, 2008
Published: October 27, 2008
Vladimir I. Balakshy and Dmitry E. Kostyuk, "Acousto-optic image processing," Appl. Opt. 48, C24-C32 (2009)