Dept. of Electr. and Comput. Eng., Northeastern Univ., Boston, MA.
IEEE Trans Image Process. 1992;1(2):221-8. doi: 10.1109/83.136598.
The problem of reconstructing the complex index of refraction of a weakly inhomogeneous scattering object from measurements of the magnitude (intensity) of the transmitted wavefields in a set of scattering experiments within the context of diffraction tomography (DT) is addressed. It is shown that high quality approximate reconstructions can be obtained from such intensity data using standard reconstruction procedures of DT. The physical basis for the success of these procedures when applied to intensity data is discussed and computer simulations are presented comparing the approximate reconstructions generated from intensity data with the optimum reconstructions generated from both the magnitude and phase of the transmitted wavefields.
从一组散射实验中测量透射波场的幅度(强度),在衍射层析成像(DT)的背景下,解决了从测量值重建弱非均匀散射物体的复杂折射率的问题。结果表明,使用 DT 的标准重建程序,可以从这些强度数据中获得高质量的近似重建。讨论了将这些程序应用于强度数据时成功的物理基础,并给出了比较从强度数据生成的近似重建和从透射波场的幅度和相位生成的最优重建的计算机模拟。