title: Three-dimensional-object recognition by use of single-exposure on-axis digital holography.
abstract: On-axis phase-shifting digital holography requires recording of multiple holograms. We describe a novel real-time three-dimensional- (3-D-) object recognition system that uses single-exposure on-axis digital holography. In contrast to 3-D-object recognition by means of a conventional phase-shifting scheme that requires multiple exposures, our proposed method requires only a single digital hologram to be synthesized and used to recognize 3-D objects. A benefit of the proposed 3-D recognition method is enhanced practicality of digital holography for 3-D recognition in terms of its simplicity and greater robustness to external scene parameters such as moving targets and environmental noise factors. We show experimentally the utility of the single-exposure on-axis digital holography-based 3-D-object recognition method.
authors.affiliation: Department of Electrical and Computer Engineering, University of Connecticut, Unit-2157, 371 Fairfield Road, Storrs, Connecticut 06269, USA. bahram@engr.uconn.edu
authors.forename: Bahram
authors.initials: B
authors.lastname: Javidi
authors.forename: Daesuk
authors.initials: D
authors.lastname: Kim