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SEM low magnification stereoscopic technique for mapping surface contours: application to measurement of volume differences in human teeth due to polishing
Author(s) -
Russ J. C.,
Hare T. M.,
Christensen R. P.,
Hare K. T.,
Russ J. C.
Publication year - 1986
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1986.tb02810.x
Subject(s) - polishing , magnification , volume (thermodynamics) , surface (topology) , elevation (ballistics) , stereoscopy , measure (data warehouse) , erosion , materials science , profilometer , geology , optics , geometry , computer science , mathematics , surface finish , physics , composite material , geomorphology , quantum mechanics , database
SUMMARY SEM stereogrammetry with a low magnification mosaic of pictures is used to measure the elevation of many individual points. This random array of elevations is then connected into a triangular mesh, from which a contour map of elevation is drawn for the entire surface. Maps of surfaces before and after removal of material are used to determine the volume removed. The method is applicable to many circumstances of wear, erosion or deformation of surfaces. It is applied here to the erosion of human teeth due to dental polishing.