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Proceedings Paper

Combined correlation estimation of axial displacement in optical coherence elastography: assessment of axial displacement sensitivity performance relative to existing methods
Author(s): A. Grimwood; A. Messa; J. C. Bamber
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Paper Abstract

A combined correlation method is introduced to optical coherence elastography for axial displacement estimation. Its performance is compared with that of amplitude correlation tracking and phase shift estimation. Relative sensitivities to small (sub-micron), and large (pixel-scale) axial displacements are analysed for a Perspex test object and gelatine phantom.

The combined correlation method exhibited good overall performance, with a larger dynamic range than phase shift estimation and higher sensitivity than amplitude correlation tracking.

Paper Details

Date Published: 6 March 2015
PDF: 6 pages
Proc. SPIE 9327, Optical Elastography and Tissue Biomechanics II, 93270W (6 March 2015); doi: 10.1117/12.2079315
Show Author Affiliations
A. Grimwood, Royal Surrey County Hospital (United Kingdom)
A. Messa, Institute of Cancer Research and Royal Marsden Hospital (United Kingdom)
J. C. Bamber, Institute of Cancer Research and Royal Marsden Hospital (United Kingdom)

Published in SPIE Proceedings Vol. 9327:
Optical Elastography and Tissue Biomechanics II
Kirill V. Larin; David D. Sampson, Editor(s)

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