CaltechAUTHORS
  A Caltech Library Service

Noise reduction by discrete image shifting in DPIV

Westerweel, J. and Dabiri, D. and Gharib, M. (1995) Noise reduction by discrete image shifting in DPIV. In: Flow visualization VII. Begell House , New York, pp. 688-694. ISBN 9781567000368. http://resolver.caltech.edu/CaltechAUTHORS:20130912-131326617

Full text is not posted in this repository.

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20130912-131326617

Abstract

Image shifting by removing the integer-pixel displacement in cross-correlation analysts of single-exposure digital image pairs optimizes the accuracy for estimating the location of the displacement-correlation peak in digital particle image velocimetry (PJV). The effect is predicted by an analytical model for the statistical properties of estimators for the displacement. The predicted noise reduction is observed in the analysis of synthetic PIV images of isotropic turbulence and in actual measurements of grid-generated turbulence.


Item Type:Book Section
Additional Information:© 1995 Begell House. The research of dr.ir. J. Westerweel has been made possible by a fellowship of the Royal Netherlands Academy of Arts and Sciences. The visit of dr.ir. J. Westerweel to the C.Q.V. was supported by URI (N00014-92-J-1618) from the Office of Naval Research.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Royal Netherlands Academy of Arts and SciencesUNSPECIFIED
Office of Naval Research (ONR) URI N00014-92-J-1618
Record Number:CaltechAUTHORS:20130912-131326617
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130912-131326617
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41294
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Sep 2013 22:45
Last Modified:30 Sep 2016 17:35

Repository Staff Only: item control page