A self-adaptive sampling digital image correlation algorithm for   accurate displacement measurement

doi:10.1016/j.optlaseng.2014.05.006

CORC > 北京大学 > 工学院

	A self-adaptive sampling digital image correlation algorithm for accurate displacement measurement
	Yuan, Yuan ; Huang, Jianyong ; Fang, Jing ; Yuan, Fan ; Xiong, Chunyang
刊名	工程光学与激光
	2015
关键词	Self-adaptive sampling algorithm Weighted ZNSSD criterion Gaussian window Displacement measurement Cellular traction force microscopy SCHEME FIELD
DOI	10.1016/j.optlaseng.2014.05.006
英文摘要	Digital image correlation (DIC) is nowadays widely applied to many engineering areas as an effective optical displacement measurement technique. To minimize the potential effect of spatial sampling locations on full-field displacement measurement, this paper develops a self-adaptive sampling DIC algorithm for accurate and reliable displacement computation over entire specimen surfaces. Depending on local deformation states, the algorithm can automatically optimize spatial distribution of sampling points over specimen surfaces in a self-adaptive manner in combination with the well-developed DIC algorithm with Gaussian windows. Both a series of well-designed computer-simulated speckle images and actual cell-substrate deformation ones are employed to verify the feasibility and effectiveness of the proposed algorithm, which demonstrates that the set of self-adaptive sampling algorithm is capable of recovering more accurate and precise full-field displacements compared to the conventional DIC algorithm with equidistant sampling. (C) 2014 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345492500008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Optics; SCI(E); EI; 7; ARTICLE; hjypku@gmail.com; cyxiong@pku.edu.cn; ,SI; 57-63; 65
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154081]
专题	工学院
推荐引用方式 GB/T 7714	Yuan, Yuan,Huang, Jianyong,Fang, Jing,et al. A self-adaptive sampling digital image correlation algorithm for accurate displacement measurement[J]. 工程光学与激光,2015.
APA	Yuan, Yuan,Huang, Jianyong,Fang, Jing,Yuan, Fan,&Xiong, Chunyang.(2015).A self-adaptive sampling digital image correlation algorithm for accurate displacement measurement.工程光学与激光.
MLA	Yuan, Yuan,et al."A self-adaptive sampling digital image correlation algorithm for accurate displacement measurement".工程光学与激光 (2015).