31 October 1997 3D reconstruction of opaque objects from Fourier intensity data
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Abstract
3D imaging provides important profile information not available with conventional 2D image products. Profile information can be extremely valuable for industrial- inspection and remote target-characterization applications. In this paper, we discuss a novel imaging modality, called PROCLAIM, that utilizes the powerful constraint that opaque objects can be described by a 2D surface embedded in 3D space. Far-field Fourier intensity measurements are collected by flood-illuminating an object with a frequency- tunable laser and direct detecting the backscattered signal with a lensless sensor. This technique allows for precise, non-contract surface measurements, without the stringent coherence and mechanical stability requirements of related interferometric techniques. We present reconstruction results form simulated data and from laboratory measurements.
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Michael F. Reiley, Michael F. Reiley, Richard G. Paxman, Richard G. Paxman, James R. Fienup, James R. Fienup, Kurt W. Gleichman, Kurt W. Gleichman, Joseph C. Marron, Joseph C. Marron, } "3D reconstruction of opaque objects from Fourier intensity data", Proc. SPIE 3170, Image Reconstruction and Restoration II, (31 October 1997); doi: 10.1117/12.292830; https://doi.org/10.1117/12.292830
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