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Digital Image VelocimetryDigital image velocimetry is technique for extracting two-dimensional (in image planes) velocities of objects from multiple photographs or video images of objects. Devised to overcome disadvantages of particle-image velocimetry and laser-speckle velocimetry, both of which involve use of illuminated seed particles to make flows visible. Directions of velocity vectors determined unambiguously, and dynamic range limited only by speed of camera or, equivalently, by speed of stroboscopic illumination.
Document ID
19910000528
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Cho, Y.-C. (NASA Ames Research Center, Moffett Field, CA.)
Date Acquired
August 14, 2013
Publication Date
October 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 10
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
ARC-12774
Accession Number
91B10528
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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