17 September 1997 Fast and flexible shape control with adaptive LCD fringe masks
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Proceedings Volume 3098, Optical Inspection and Micromeasurements II; (1997) https://doi.org/10.1117/12.281188
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany
Abstract
Fast analysis of 3D shape deviations is obtained with fringe projection combined with moire filtering. A method is presented where an object adapted fringe mask is written in a matrix LCD and projected onto the test object. The object is detected by a CCD camera. Perfect objects yield regular fringe patterns. shape deviations results in distorted fringes. For moire filtering the periodic structure of the detecting CCD chip is exploited, therefore no image postprocessing is required, testing at video frame rate is possible.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Martin Schoenleber, Martin Schoenleber, Hans J. Tiziani, Hans J. Tiziani, } "Fast and flexible shape control with adaptive LCD fringe masks", Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); doi: 10.1117/12.281188; https://doi.org/10.1117/12.281188
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