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Modulated phase-shifting for 3D scanning

2008 IEEE Conference on Computer Vision and Pattern Recognition, 2008
We present a new 3D scanning method using modulated phase-shifting. Optical scanning of complex objects or scenes with significant global light transport, such as subsurface scattering, interreflections, volumetric scattering, etc. is a difficult task since the direct surface reflection will be mixed with the global illumination.
Chen, T.   +2 more
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Phase-shifting interferometry by wave amplitude modulation

Optics Letters, 2011
A new method for phase-shifting interferometry based on wave amplitude modulation is proposed and discussed. This proposal is based on the interference of three waves, where two waves attend as two reference waves and the other wave attends as a probe wave.
Cruz, Meneses-Fabian   +1 more
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Linear Measuring Phase Shift Module

2019 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon), 2019
The article describes design of a linear measuring phase shift module with a nonuniform running magnetic field developed by the authors. The developed phase shift module is intended for use in information and measurement systems for linear displacement.
V Goryachev   +3 more
openaire   +1 more source

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