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Proceedings Paper

Tracking speckle motion with directional wavelets
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Paper Abstract

Speckle-based strain measurements in biological tissues can be useful for many applications. In using the speckle strain gauge the goal is to observe and track speckles that are translating in both time and space as a result of an applied load. Usually, speckle images are processed with the FFT or the Radon transform. Here we have attempted to apply the novel technique of the Directional Continuous Wavelet Transform (DCWT) for image processing. This method yields two kinds of image decompositions 1) in terms of dilation scale and rotation angle (scale-angle representation) or 2) in terms of time and rotation angle (time-angle representation). In our study these properties of DCWT have been used to track the dynamics of speckle motions.

Paper Details

Date Published: 9 July 2001
PDF: 9 pages
Proc. SPIE 4257, Laser-Tissue Interaction XII: Photochemical, Photothermal, and Photomechanical, (9 July 2001); doi: 10.1117/12.434734
Show Author Affiliations
Igor Patrickeyev, Institute of Continuum Mechanics (Russia)
Sean J. Kirkpatrick, Oregon Health Sciences Univ. (United States)
Donald Dean Duncan, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 4257:
Laser-Tissue Interaction XII: Photochemical, Photothermal, and Photomechanical
Donald Dean Duncan; Peter C. Johnson; Donald Dean Duncan; Steven L. Jacques; Peter C. Johnson, Editor(s)

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