26 October 2004 Methods of maximum-likelihood tomography
Author Affiliations +
Maximum-likelihood estimation is an important method of inference. Recently, maximum-likelihood techniques have been successfully applied to absorption tomography of weakly as well as strongly absorbing materials. In this presentation we generalize this method to the phase contrast tomography, which combines the phase estimation and tomography. Unlike the standard phase fitting followed by the filtered back-projection, the developed procedure gives reasonable results also when applied to very noisy data or data consisting of only a few measured projections. The proposed method could therefore considerably shorten measuring times in applications involving low intensity beams, such as phase tomography with low intense X-ray beams or neutrons.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zdenek Hradil and Jaroslav Rehacek "Methods of maximum-likelihood tomography", Proc. SPIE 5535, Developments in X-Ray Tomography IV, (26 October 2004); doi: 10.1117/12.566368; https://doi.org/10.1117/12.566368

Back to Top