Moiré topography

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Moiré topography.

Contour moiré pictures with good contrast of a full size living body are now available. Construction problems, performance, and accuracy of large instruments are experimentally studied. Techniques to minimize the drawbacks of the moiré contouring are developed. The system has been proved to be ready for practical application to full size living bodies.

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Moiré topography has the advantage of requiring only a single image to obtain a three-dimensional measurement, but it cannot discern the fringe order. Because there is an ambiguity problem when calculating the depth range by use of fringe intensity or phase unwrapping, it is impossible to obtain an absolute phase and an absolute depth range. It is therefore difficult to discern the relation bet...

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Moiré topography in scoliosis. Its accuracy in detecting the site and size of the curve.

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ژورنال

عنوان ژورنال: Journal of the Japan society of photogrammetry

سال: 1971

ISSN: 1884-3980,0549-4451

DOI: 10.4287/jsprs1962.10.2_1