title: 3D shape measurement of macroscopic objects in digital off-axis holography using structured illumination.
abstract: We propose what we believe to be a novel approach to measure the 3D shape of arbitrary diffuse-reflecting macroscopic objects in holographic setups. Using a standard holographic setup, a second CCD and a liquid-crystal-on-silicon spatial light modulator to modulate the object wave, the method yields a dense 3D point cloud of an object or a scene. The calibration process is presented, and first quantitative results of a shape measurement are shown and discussed. Furthermore, a shape measurement of a complex object is displayed to demonstrate its universal use.
authors.affiliation: Institute of Applied Optics, University of Jena, Froebelstieg 1, 07743 Jena, Germany. marcus.g@uni-jena.de
authors.forename: Marcus
authors.initials: M
authors.lastname: Grosse
authors.forename: Johannes
authors.initials: J
authors.lastname: Buehl
authors.forename: Holger
authors.initials: H
authors.lastname: Babovsky
authors.forename: Armin
authors.initials: A
authors.lastname: Kiessling
authors.forename: Richard
authors.initials: R
authors.lastname: Kowarschik