Photoacoustic tomography in a reflecting cavity

Photoacoustic tomography in a reflecting cavity
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反射腔中的光声断层扫描

DOI:
10.1117/12.2003571
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发表时间:
2013
期刊:
--
影响因子:
--
通讯作者:
Cox B
Cox B
中科院分区:
--
文献类型:
--
作者:
Cox B

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几乎所有已知的光声图像重建算法都是基于声波在有限时间后离开物体(成像区域)的假设。如果在自由空间中进行测量并且来自检测器的反射可以忽略不计,则满足该假设。然而,当物体被声学上硬的检测器阵列(和/或附加的声镜)包围时,声波将在这样的混响腔中反弹多次(在没有吸收的情况下,永远)。本文提出了一种快速重建算法的测量从一个矩形混响腔的墙壁。使用数值模拟的算法进行了测试。
Almost all known photoacoustic image reconstruction algorithms are based on the assumption that the acoustic waves leave the object (the imaged region) after a finite time. This assumption is fulfilled if the measurements are made in free space and reflections from the detectors are negligible. However, when the object is surrounded by acoustically hard detectors arrays (and/or by additional acoustic mirrors), the acoustic waves will bounce around in such a reverberant cavity many times (in the absence of absorption, forever). This paper proposes fast reconstruction algorithms for the measurements made from the walls of a rectangular reverberant cavity. The algorithms are tested using numerical simulations.
DOI: 10.1118/1.598688
发表时间: 1999-09-01
期刊: MEDICAL PHYSICS
影响因子: 3.8
作者:
Kruger, RA;Reinecke, DR;Kruger, GA
通讯作者: Kruger, GA
DOI: 10.1088/0266-5611/27/2/025012
发表时间: 2010
期刊: Inverse Problems
影响因子: 2.1
作者:
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通讯作者: L. Kunyansky
在混响腔中使用单个探测器进行光声断层扫描。
DOI: 10.1121/1.3068445
发表时间: 2008
期刊: The Journal of the Acoustical Society of America
影响因子: --
作者:
B. Cox;P. Beard
通讯作者: P. Beard
生物组织中基于激光的光声成像
DOI: --
发表时间: 1994
期刊: SPIE LASE
影响因子: --
作者:
A. Oraevsky;S. Jacques;R. Esenaliev;F. Tittel
通讯作者: F. Tittel