Please use this identifier to cite or link to this item: https://doi.org/10.1088/0957-0233/13/5/320
Title: Monitoring building shift using a robust speckle correlation encoder scheme
Authors: Ng, T.W. 
Yong, W.B.
Keywords: Displacement
Drift
Environmental monitoring
Shift
Speckle correlation encoder
Issue Date: May-2002
Citation: Ng, T.W., Yong, W.B. (2002-05). Monitoring building shift using a robust speckle correlation encoder scheme. Measurement Science and Technology 13 (5) : 803-806. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-0233/13/5/320
Abstract: Optical methods are advantageous in monitoring the shift in buildings. In this work, the speckle correlation encoder is investigated for this purpose. The effect of decorrelation due to lateral motion in limiting the accuracy of speckle correlation encoders is discussed and verified in this work. A method of neighbourhood addressing using a two-dimensional array detector is proposed and shown to overcome this limitation. Experimental results verify the feasibility of using this approach for building shift monitoring.
Source Title: Measurement Science and Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/67783
ISSN: 09570233
DOI: 10.1088/0957-0233/13/5/320
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