激光生物学报2011，Vol.20Issue(3)：382-387,6.DOI:10.3969/j.issn.1007-7146.2011.03.020
不同探测距离对光声成像的影响
Influence of Differential Detected Distance on Photoacoustic Imaging
摘要
Abstract
In order to study the influence of differential detected distance on photoacoustic imaging, numerical experiments of linear scanning and filter back-projection algorithm were carried out.The results of simulations showed that the lightness of imagines were different when distance of absorbers relative to detected distance increased, and reconstructed image distortion was severe when the transducer was far from absorbers.The method of photoacoustic signal attenuation compensation was adopted; a good quality of reconstructed imaging was obtained when a thresholding was adapted to the former and rotating scans transducers to the latter.The results of the study are helpful for the choice of detected distance and the evaluation of reconstructed images.关键词
医用光学与生物技术/光声成像/光声信号/探测距离Key words
medical optics and biotechnology/ photoacousitc imaging/ photoacousitc signal/ detected distance/分类
信息技术与安全科学引用本文复制引用
谭毅..不同探测距离对光声成像的影响[J].激光生物学报,2011,20(3):382-387,6.基金项目
陕西省科技厅基础研究项目(2009JM1012) （2009JM1012）
陕西省教育厅基础研究项目(2010JK463) （2010JK463）
