Learning approach to optical tomography

US Kamilov, IN Papadopoulos, MH Shoreh, A Goy… - Optica, 2015 - opg.optica.org
Optical tomography has been widely investigated for biomedical imaging applications. In
recent years optical tomography has been combined with digital holography and has been …

The PyHST2 hybrid distributed code for high speed tomographic reconstruction with iterative reconstruction and a priori knowledge capabilities

A Mirone, E Brun, E Gouillart, P Tafforeau… - Nuclear Instruments and …, 2014 - Elsevier
We present the PyHST2 code which is in service at ESRF for phase-contrast and absorption
tomography. This code has been engineered to sustain the high data flow typical of the 3rd …

Convex optimization problem prototyping for image reconstruction in computed tomography with the Chambolle–Pock algorithm

EY Sidky, JH Jørgensen, X Pan - Physics in Medicine & Biology, 2012 - iopscience.iop.org
The primal–dual optimization algorithm developed in Chambolle and Pock (CP)(2011 J.
Math. Imag. Vis. 40 1–26) is applied to various convex optimization problems of interest in …

DART: a practical reconstruction algorithm for discrete tomography

KJ Batenburg, J Sijbers - IEEE Transactions on Image …, 2011 - ieeexplore.ieee.org
In this paper, we present an iterative reconstruction algorithm for discrete tomography, called
discrete algebraic reconstruction technique (DART). DART can be applied if the scanned …

Evaluation of sparse-view reconstruction from flat-panel-detector cone-beam CT

J Bian, JH Siewerdsen, X Han, EY Sidky… - Physics in Medicine …, 2010 - iopscience.iop.org
Flat-panel-detector x-ray cone-beam computed tomography (CBCT) is used in a rapidly
increasing host of imaging applications, including image-guided surgery and radiotherapy …

Compressive sensing in medical imaging

CG Graff, EY Sidky - Applied optics, 2015 - opg.optica.org
The promise of compressive sensing, exploitation of compressibility to achieve high quality
image reconstructions with less data, has attracted a great deal of attention in the medical …

A constrained, total‐variation minimization algorithm for low‐intensity x‐ray CT

EY Sidky, Y Duchin, X Pan, C Ullberg - Medical physics, 2011 - Wiley Online Library
Purpose: The authors developed an iterative image‐reconstruction algorithm for application
to low‐intensity computed tomography projection data, which is based on constrained, total …

Interface-specific x-ray phase retrieval tomography of complex biological organs

MA Beltran, DM Paganin, KKW Siu… - Physics in Medicine …, 2011 - iopscience.iop.org
We demonstrate interface-specific propagation-based x-ray phase retrieval tomography of
the thorax and brain of small animals. Our method utilizes a single propagation-based x-ray …

Optimization-based reconstruction of sparse images from few-view projections

X Han, J Bian, EL Ritman, EY Sidky… - Physics in Medicine & …, 2012 - iopscience.iop.org
In this work, we investigate optimization-based image reconstruction from few-view (ie less
than ten views) projections of sparse objects such as coronary–artery specimens. Using …

Constrained Minimization for Enhanced Exploitation of Gradient Sparsity: Application to CT Image Reconstruction

EY Sidky, R Chartrand, JM Boone… - IEEE journal of …, 2014 - ieeexplore.ieee.org
Exploiting sparsity in the image gradient magnitude has proved to be an effective means for
reducing the sampling rate in the projection view angle in computed tomography (CT). Most …