23 February 2012 Photoacoustic speckles: boundary dependence and experimental validation
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Abstract
Photoacoustic tomography (PAT) suppresses speckles by prominent boundary buildups. We theoretically study the dependence of PAT speckles on the boundary roughness, which is quantified by the root-mean-squared (RMS) value and the correlation length of the height. The speckle visibility and the correlation coefficient between the reconstructed and actual boundaries are quantified as a function of the boundary roughness. The statistics of PAT speckles is studied experimentally.
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Zijian Guo, Zhun Xu, Lihong V. Wang, "Photoacoustic speckles: boundary dependence and experimental validation", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 82232M (23 February 2012); doi: 10.1117/12.906792; https://doi.org/10.1117/12.906792
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