Speed sensing using projected fringe profilometry

Wei-Hung Su

doi:10.1117/12.859765

18 August 2010 Speed sensing using projected fringe profilometry

Wei-Hung Su

Proceedings Volume 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV; 77810O (2010) https://doi.org/10.1117/12.859765
Event: SPIE Photonic Devices + Applications, 2010, San Diego, California, United States

Abstract

An algorithm using fringe projection to perform the speed measurement is described. A fringe pattern is illuminated onto the dynamic object, and a CCD camera is used to record the fringe distribution. Fringes on the obtained image are deformed by the topography of the object, and also, blurred by motion. Thus, the blurred fringes supply additional information to describe the speed of motion. Only one shot measurement is required for data processing. This makes it possible to perform the speed measurements with low environmental vulnerability.

Citation Download Citation

Wei-Hung Su "Speed sensing using projected fringe profilometry", Proc. SPIE 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV, 77810O (18 August 2010); https://doi.org/10.1117/12.859765

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