then the determination of the shape of the default region. Two approaches can bc used: modelling the image as a binary Markov random field and estimating the whole pixels of the image or modeling the shape of the default and estimating it directly from the projections. In this work wc model the default shape by a

Feynman challenged the electron microscopy community to locate the positions of individual atoms in substances The experiment was performed on an aberration-corrected STEM operated in annular dark-field (ADF) mode • to 180 • , a tilt series of 62 angles was acquired with equal slope increments

Abstract:- High Performance Computing (HPC from now) is a characteristic defined and developed with the aim of providing a feasible framework in which large-scale and grand-challenge applications can be run within acceptable time bounds. Electron tomography of large specimens sets up a field

Abstract—We develop a variational algorithm for reconstruct-ing phase objects from a series of bright field micrographs. Our mathematical model is based on the transport-of-intensity equation (TIE), which links the phase of a complex field to the axial derivative of its intensity. To reduce

To reconstruct the 3D information of X-rays tomography (tomoX). many authors [1, 2, 3, 4] uses algorthims implemented for electron microscopy ([5, 6]) To analyze the performance of applying EM reconstruction algorithms to tomoX microscopy we have developed an X-ray microscope simulator

Abstract — Ultrasonic tomography using inverse scattering, i.e., the distorted Born iterative method (DBIM), allows for the quantitative image reconstruction of mechanical properties of materials. The use of multi-frequency information has been proposed to avoid convergence issues for targets

Abstract—We describe a fast forward and back projector pair based on inverse Fourier rebinning for use in iterative image reconstruction for fully 3-D positron emission tomography (PET). The projector pair is used as part of a factored system matrix that takes into account detector-pair response

We consider the problem of reconstructing superimposed temperature and wind flow fields from acoustic measurements. A new technique based solely on acoustic waves propagation is presented. In contrast to the usual straight ray assumption, a bent ray model is considered in order to achieve higher

reconstruction, model-based iterative reconstruction, and application-specific reconstruction. Given the limited scope of this chapter, it is nearly impossible to cover every important development in this field; it is equally difficult to provide sufficient breadth and depth on each selected topic. As a

We introduce a new approach to image reconstruction from highly incomplete data. The available data are assumed to be a small collection of spectral coefficients of an arbitrary linear transform. This reconstruction problem is the subject of intensive study in the recent field of “compressed