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Optical Engineering

Digital photogrammetric techniques for high-resolution three-dimensional flow velocity measurements
Author(s): Hans-Gerd Maas; Armin Gruen
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Paper Abstract

Two different photogrammetric techniques for the determination of high-resolved simultaneous 3-D velocity fields in flows are outlined and compared: a technique based on the discrete visualization of a flow with tracer particles and recording of image sequences by multiple CCD cameras, and a technique based on scanning an observation volume of a flow marked with dye by a laser Iightsheet and tracking of flow patterns by 3-D least-squares matching in sequences of voxel datasets. The article shows the principles of both methods, hardware configurations for data acquisition, application fields, and results achieved.

Paper Details

Date Published: 1 July 1995
PDF: 7 pages
Opt. Eng. 34(7) doi: 10.1117/12.204687
Published in: Optical Engineering Volume 34, Issue 7
Show Author Affiliations
Hans-Gerd Maas, Swiss Federal Institute of Technology (Germany)
Armin Gruen, Eidgenoessische Technische Hochschule/Zuerich (Switzerland)

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