Dynamic speckle pattern technique on measuring in-plane deformation of metal surface

Jingzhen Li; Shanxiang Li; Yiling Sun; Henan An

doi:10.1117/12.424292

17 April 2001 Dynamic speckle pattern technique on measuring in-plane deformation of metal surface

Jingzhen Li, Shanxiang Li, Yiling Sun, Henan An

Proceedings Volume 4183, 24th International Congress on High-Speed Photography and Photonics; (2001) https://doi.org/10.1117/12.424292
Event: 24th International Congress on High-Speed Photography and Photonics, 2000, Sendai, Japan

Abstract

In order to study the metal target surface in-place deformation induced by the laser beam or other ones effecting upon, three kinds of measuring dynamic in-plane deformation techniques by means of a laser speckle, which are the speckle field time sequence processing (that is the optical flow analysis of speckle pattern), the digital speckle pattern processing (in fact, it is a kind of pattern or picture enhancement technique), and the digital speckle pattern correlation metrology, have been studded and developed. The latter, the correlation metrology, has been made a big progress: better precision and higher processing speed.

Citation Download Citation

Jingzhen Li, Shanxiang Li, Yiling Sun, and Henan An "Dynamic speckle pattern technique on measuring in-plane deformation of metal surface", Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); https://doi.org/10.1117/12.424292

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