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Assessment of camera models for use in planar velocimetry calibration

Willert, Christian (2006) Assessment of camera models for use in planar velocimetry calibration. Experiments in Fluids, 41 (1), pp. 135-143. DOI: 10.1007/s00348-006-0165-2.

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Abstract

The performance of three implementations of pinhole-based camera models for use in common light-sheet imaging arrangements is investigated on the background of application to particle image velocimetry (PIV) and Doppler global velocimetry (DGV). Calibration data obtained from translated planar calibration targets was found to yield camera attitude within 0.1° on four different test cases with object distance varying as little as 2% depending on the choice of camera model. Camera calibration using data from a single image of coplanar points is considered a viable alternative to manual triangulation of camera positions but is restricted to off-normal viewing directions.

Document Type:Article
Title:Assessment of camera models for use in planar velocimetry calibration
Authors:
AuthorsInstitution or Email of Authors
Willert, ChristianUNSPECIFIED
Date:1 July 2006
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:41
DOI:10.1007/s00348-006-0165-2
Page Range:pp. 135-143
Status:Published
Keywords:digital imaging, camera calibration, camera model, flow imaging, image transformation, Doppler global velocimetry, stereo particle image velocimetry
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation Methods
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology
Institute of Propulsion Technology > Engine Measurement Systems
Deposited By: Dr.phil. Christian Willert
Deposited On:21 Jul 2006
Last Modified:27 Apr 2009 12:57

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