15 April 2010 New noise detection scheme for noisy phase map of objects containing height discontinuities
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Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75224A (2010); doi: 10.1117/12.851428
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore
Abstract
In the wrapped phase map of the 3D object containing the height discontinuities, this paper develops an enhanced noise detection scheme to enable the three types of noise, the speckle noise, the residual noise, and the noise at the lateral surface of height discontinuities, to be efficiently and simultaneously detected with a greater degree of precision. Since any threshold of this scheme is related to the number of noise and does not influence the phase jumps, the application with filtering operations enables the edges of the phase jumps without smearing and the application with the phase unwrapping algorithms enables the unwrapping path to avoid the positions of the noise, especially, at the height discontinuities.
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Jing-Feng Weng, Yu-Lung Lo, "New noise detection scheme for noisy phase map of objects containing height discontinuities", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75224A (15 April 2010); doi: 10.1117/12.851428; https://doi.org/10.1117/12.851428
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KEYWORDS
Speckle

Inspection

Interferometers

Detection and tracking algorithms

Linear filtering

MATLAB

Turbulence

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