Title :
Plane displacement measurement of rigid body by laser speckle
Author :
Zhong, Chuan ; Shen, Changyu ; Xiang, Linzhao ; Li, Ke
Author_Institution :
Inst. of Optoelectron. Technol., China Jiliang Univ., Hangzhou, China
Abstract :
A measurement system of plane displacement in rigid body was designed. Plane displacement was calculated by the cross-correlation of speckle image. Measurement results showed that the absolute-error and the opposite-error of the plane displacement less than ±14 μm and ±6.25% respectively, under the displacement range of 300 μm.
Keywords :
displacement measurement; image processing; optical correlation; speckle; absolute-error; cross correlation; laser speckle; opposite-error; plane displacement measurement; rigid body; speckle image; Digital images; Displacement measurement; Equations; Laser theory; Mathematical model; Measurement by laser beam; Speckle; Digital image processing; Laser speckle; Plane displacement;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682719
