alexa Processing algorithms for tracking speckle shifts in optical elastography of biological tissues.
Physics

Physics

Journal of Lasers, Optics & Photonics

Author(s): Duncan DD, Kirkpatrick SJ

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Abstract Parametric and nonparametric data processing schemes for analyzing translating laser speckle data used to investigate the mechanical behavior of biological tissues are examined. Cross-correlation, minimum mean square estimator, maximum likelihood, and maximum entropy approaches are discussed and compared on speckle data derived from cortical bone samples undergoing dynamic loading. While it was not the purpose of this paper to demonstrate that one processing technique is superior to another, maximum likelihood and maximum entropy approaches are shown to be particularly useful when the observed speckle motion is small. This article was published in J Biomed Opt and referenced in Journal of Lasers, Optics & Photonics

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