Tomographic Image Reconstruction and Inverse Scattering Problem of Biological Objects in Terahertz Range

The inverse scattering investigates the problem of image reconstruction of biological objects and determination of the relation between the electromagnetic scattered field and the volume current distribution in all directions. The basic technique to generate a reconstructed tomographic image in Terahertz range on a digital computer is described. Some applications of computer simulations for tomography including new algorithms, which proved to be superior for Terahertz diagnostic technique, are introduced. Tomographic image reconstruction of cylindrical objects from calculated scattered electric field is studied. Finally, the effect of sampling and quantization on tomographic image fidelity is reviewed.