TITLE

Three-view stereoscopy in dusty plasmas under microgravity: A calibration and reconstruction approach

AUTHOR(S)
Himpel, Michael; Buttenschön, Birger; Melzer, André
PUB. DATE
May 2011
SOURCE
Review of Scientific Instruments;May2011, Vol. 82 Issue 5, p053706
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A three-camera stereoscopy setup is presented that allows to reconstruct the trajectories of particles in dusty plasmas under microgravity. The calibration procedure for the three-camera setup takes the special circumstances into account that occur in close-range imaging of small particles. Additionally, a reconstruction algorithm is presented that is based on the epipolar geometry and delivers the essential particle correspondences. Further improvements are achieved by analyzing the dynamic particle behavior. Two applications of our calibration and reconstruction procedure are presented: A two-dimensional dust structure in the laboratory with a large percentage of hidden particles, and particles inside the void of a dust cloud under microgravity.
ACCESSION #
62010772

 

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