Three dimensional shape measurement using high-order instantaneous moments based fringe projection method

Fringe projection techniques are popular tools for three-dimensional shape measurement in optical metrology. In these techniques, the information about the shape or the surface profile of an object is usually encoded in the phase of a recorded fringe pattern. The paper presents a high-order instantaneous moments based method for phase estimation in fringe projection. The method employs a piecewise polynomial phase approximation approach and uses high-order instantaneous moments to determine the polynomial phase coefficients to estimate the phase. The method's working is demonstrated using simulation examples and its practical applicability is validated through a shape measurement experiment.


Published in:
Optics & Laser Technology, 43, 1, 40-44
Year:
2011
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Note: The status of this file is: EPFL only


 Record created 2011-05-27, last modified 2018-03-17

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