OPTICAL VELOCIMETRY BASED ON THE SPATIAL CORRELATION OF OFF-AXIS IMAGE SPECKLE PATTERNS

Authors
POMARICO JA RUSSO NA SICRE EE PATRIGNANI D
Citation
Ja. Pomarico et al., OPTICAL VELOCIMETRY BASED ON THE SPATIAL CORRELATION OF OFF-AXIS IMAGE SPECKLE PATTERNS, Optics communications, 133(1-6), 1997, pp. 27-32
Citations number
17
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
133
Issue
1-6
Year of publication
1997
Pages
27 - 32
Database
ISI
SICI code
0030-4018(1997)133:1-6<27:OVBOTS>2.0.ZU;2-N
Abstract
A method is proposed for measuring the linear velocity of a moving rou gh surface. It is based on maximizing the spatial correlation between two laterally shifted image speckle patterns. Besides, an expression o f a spatially variant point-spread function is given, which modifies t he spatial distributions of the off-axis image speckle patterns.