Ladas K T, Devaney A J
Department of Electrical and Computer Engineering, Northeastern University, Boston, MA 02115.
Ultrason Imaging. 1993 Jan;15(1):48-58. doi: 10.1177/016173469301500105.
This paper describes results obtained using a recently developed Algebraic Reconstruction Technique (ART) for diffraction tomography on experimental data obtained from an ultrasound scanner built by Norwave Development A.S. of Oslo, Norway. The test objects (phantoms) employed in the study are low contrast cylindrical rods made out of agar with dimensions comparable to the wavelength of the incident wavefield. The reconstructions obtained from the ART algorithm are compared to the ones obtained from the filtered backpropagation algorithm. It is determined that the ART algorithm out performs the filtered backpropagation algorithm for cases where data from only a small number of tomographic experiments are available.
本文描述了使用最近开发的代数重建技术（ART）对衍射层析成像的结果，该技术应用于从挪威奥斯陆的Norwave Development A.S.制造的超声扫描仪获取的实验数据。研究中使用的测试对象（体模）是由琼脂制成的低对比度圆柱棒，其尺寸与入射波场的波长相当。将ART算法得到的重建结果与滤波反传播算法得到的结果进行了比较。结果表明，在仅可获得少量层析实验数据的情况下，ART算法比滤波反传播算法表现更优。
