Superiorization of incremental optimization algorithms for statistical tomographic image reconstruction

Statistical Tomographic Image Reconstruction Methods for Randoms-Precorrected PET Measurements

Statistical Tomographic Image Reconstruction Methods for Randoms-Precorrected PET Measurements

Communication Optimization for Medical Image Reconstruction Algorithms

This paper presents experiences and results obtained in optimizing the parallel communication performance of a production-quality medical image reconstruction application. The fundamental communication operations in the application’s principal algorithm are collective reductions. The overhead of these operations was reduced by transforming the algorithm to overlap its computation and communicat...

A Statistical Tomographic Approach to Synthetic Aperture Radar Image Reconstruction

We formulate the spotlight-mode synthetic aperture radar (SAR) imaging problem as a maximum a posteriori (MAP) estimation problem. Our statistical perspective offers an alternative to standard SAR processing techniques by incorporating prior knowledge about either the data quality or the underlying reflectivity function. In our formulation we consider exploiting the similarity between computer ...

Tomographic Image Reconstruction

Accelerated Optimization Algorithms for Statistical 3d X-ray Computed Tomography Image Reconstruction

ACCELERATED OPTIMIZATION ALGORITHMS FOR STATISTICAL 3D X-RAY COMPUTED TOMOGRAPHY IMAGE RECONSTRUCTION by Donghwan Kim Chair: Jeffrey A. Fessler X-ray computed tomography (CT) has been widely celebrated for its ability to visualize the anatomical information of patients, but has been criticized for high radiation exposure. Statistical image reconstruction algorithms in X-ray CT can provide impro...