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VOTM


Course: Some optical topographic methods

Department/Abbreviation: SLO/VOTM

Year: 2020

Guarantee: 'Mgr. Dušan Mandát, Ph.D.'

Annotation: Introduction, classification of 3D methods, topography vs. profilometry, surface contour map and other possibilities of imaging of 3D object in 2D space.

Course review:
1. Introduction, classification of 3D methods, topography vs. profilometry, surface contour map and other possibilities of imaging of 3D object in 2D space, wire model, colour and grey model, WRML model, methods of a creation of an optical trace on a measured surface, projectors, principles, calibration, measurements 2. Moiré phenomenon - theory, origin, methods of description and types of Moiré figures, washing-up and fringe-shifting methods 3. Shadow, one-projector and two-projector Moiré topography - theoretical description, properties of a figure, possibilities of experimental setup, used methods for enhancement of a figure, digital modification of an image, comparison of properties and possibilities of particular methods, practical laboratory examples 4. Fourier profilometry - basics equations and principles of Fourier analysis, theoretical description, possibilities of experimental setup, practical laboratory examples 5. Scanning profilometry - theoretical description, principles of determination of topographic depth, principle of sequential surface scanning, possibilities of experimental setup 6. Stereoscopic profilometry - principle of stereoscopic vision, theoretical description, used types of projective optical structure, possibilities of experimental setup, practical laboratory examples 7. Other methods - possibilities of usage of interference phenomena or holography for measurements of shapes of objects, Michelson interferometer, speckle and holographic interferometry