title: Determination of model airplane attitudes using dynamic holographic interferometry.
abstract: We demonstrate how real-time holographic interferometry yielding two-dimensional fringes can be recorded and used to determine changes in three-dimensional attitude of a model airplane through digital image processing. A simple bench-top experiment with a model airplane as a test object is conducted to demonstrate interference fringes superposed on the image due to changes in attitudes (pitch, yaw, and roll) as well as distortion. A novel second-generation thermoplastic camera suitable for dynamic multiple reversible registration of thin-phase holograms using thermoplastic and semiconductor film on glass substrate is used for in situ recording and readout during real-time holographic interferometry. Thin-phase holograms also offer the advantage of exact image reconstruction from forward-phase conjugation.
authors.affiliation: Department of Electrical and Computer Engineering, University of Dayton, Dayton, Ohio 45458, USA.
authors.forename: Partha P
authors.initials: PP
authors.lastname: Banerjee
authors.forename: Georges
authors.initials: G
authors.lastname: Nehmetallah
authors.forename: Nickolai
authors.initials: N
authors.lastname: Kukhtarev
authors.forename: Sarat C
authors.initials: SC
authors.lastname: Praharaj