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Applied Optics

Applied Optics


  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 34 — Dec. 1, 2005
  • pp: 7357–7363

Finite element formulation for a digital image correlation method

Yaofeng Sun, John H. L. Pang, Chee Khuen Wong, and Fei Su  »View Author Affiliations

Applied Optics, Vol. 44, Issue 34, pp. 7357-7363 (2005)

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A finite element formulation for a digital image correlation method is presented that will determine directly the complete, two-dimensional displacement field during the image correlation process on digital images. The entire interested image area is discretized into finite elements that are involved in the common image correlation process by use of our algorithms. This image correlation method with finite element formulation has an advantage over subset-based image correlation methods because it satisfies the requirements of displacement continuity and derivative continuity among elements on images. Numerical studies and a real experiment are used to verify the proposed formulation. Results have shown that the image correlation with the finite element formulation is computationally efficient, accurate, and robust.

© 2005 Optical Society of America

OCIS Codes
(100.2960) Image processing : Image analysis
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: January 27, 2005
Revised Manuscript: April 12, 2005
Manuscript Accepted: April 14, 2005
Published: December 1, 2005

Yaofeng Sun, John H. L. Pang, Chee Khuen Wong, and Fei Su, "Finite element formulation for a digital image correlation method," Appl. Opt. 44, 7357-7363 (2005)

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