000162259 001__ 162259
000162259 005__ 20190316235019.0
000162259 0247_ $$2doi$$a10.1364/AO.50.000282
000162259 022__ $$a0003-6935
000162259 02470 $$2ISI$$a000286507600007
000162259 037__ $$aARTICLE
000162259 245__ $$aEstimation of dynamically varying displacement derivatives using fringe projection technique
000162259 260__ $$bOptical Society of America$$c2011
000162259 269__ $$a2011
000162259 336__ $$aJournal Articles
000162259 520__ $$aThis paper presents a pseudo Wigner–Ville-distribution-based method in fringe projection for analyzing temporal behavior of the displacement derivative for a continuously deformed object. In the proposed method, a computer generated fringe pattern is projected on an object undergoing dynamic deformation, and the reflected intensity is recorded in the form of video, i.e., a stack of images are captured sequentially by a CCD camera. Each image represents a recorded fringe pattern at a particular time instant whose phase contains information about the instantaneous out-of-plane displacement or deformation with respect to the undeformed object, and the corresponding spatial phase derivative relates to the displacement derivative. Subsequently, pseudo Wigner–Ville distribution is used for instantaneous phase derivative estimation from the stack of images. Simulation and experimental results are presented to demonstrate the method’s potential.
000162259 6531_ $$aFringe projection, dynamic derivative measurement
000162259 700__ $$0242300$$aRajshekhar, G.$$g190589
000162259 700__ $$0242293$$aGorthi, Sai Siva$$g176281
000162259 700__ $$0241647$$aRastogi, Pramod$$g106189
000162259 773__ $$j50$$k3$$q282-286$$tApplied Optics
000162259 8564_ $$uhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-3-282$$zURL
000162259 8564_ $$s804913$$uhttps://infoscience.epfl.ch/record/162259/files/applied_optics_dynamic_pswvd.pdf$$yPublisher's version$$zPublisher's version
000162259 909C0 $$0252031$$pIMAC$$xU10237
000162259 909CO $$ooai:infoscience.tind.io:162259$$particle$$pENAC$$qGLOBAL_SET
000162259 917Z8 $$x190589
000162259 917Z8 $$x190589
000162259 917Z8 $$x190589
000162259 937__ $$aEPFL-ARTICLE-162259
000162259 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000162259 980__ $$aARTICLE