Real-time, non-contact and targetless measurement of vertical deflection of bridges using off-axis digital image correlation

An advanced video deflectometer using off-axis digital image correlation is proposed for real-time, non-contact and targetless measurement of vertical deflection of bridges. To achieve real-time displacement tracking with sub-pixel accuracy, an efficient inverse compositional Gauss–Newton algorithm...

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Bibliographic Details
Published in:	NDT & E international : independent nondestructive testing and evaluation Vol. 79; pp. 73 - 80
Main Authors:	Pan, Bing, Tian, Long, Song, Xiaolin
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01.04.2016
Subjects:	Bridge deflection Deflection Digital imaging Displacement Image matching Monitoring Nondestructive testing Off-axis digital image correlation Real time Sub-pixel displacement Tracking Translations Bridge deflection Image matching Sub-pixel displacement Off-axis digital image correlation
ISSN:	0963-8695, 1879-1174
Online Access:	Get full text
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