User profiles for G.M. Fleishman

Greg M. Fleishman

Scientific Computing Associate, Janelia Research Campus
Verified email at janelia.hhmi.org
Cited by 230

An automated statistical technique for counting distinct multiple sclerosis lesions

…, KA Linn, I Oguz, GM Fleishman… - American Journal …, 2018 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Lesion load is a common biomarker in multiple sclerosis,
yet it has historically shown modest association with clinical outcome. Lesion count, which …

A Riemannian framework for intrinsic comparison of closed genus-zero shapes

…, PT Fletcher, M Jorge Cardoso, GM Fleishman… - … Isle of Skye, UK, June 28 …, 2015 - Springer
We present a framework for intrinsic comparison of surface metric structures and curvatures.
This work parallels the work of Kurtek et al. on parameterization-invariant comparison of …

Simultaneous longitudinal registration with group-wise similarity prior

GM Fleishman, BA Gutman, PT Fletcher… - … Isle of Skye, UK, June 28 …, 2015 - Springer
Here we present an algorithm for the simultaneous registration of N longitudinal image pairs
such that information acquired by each pair is used to constrain the registration of each …

Joint intensity fusion image synthesis applied to multiple sclerosis lesion segmentation

GM Fleishman, A Valcarcel, DL Pham, S Roy… - … Sclerosis, Stroke and …, 2018 - Springer
We propose a new approach to Multiple Sclerosis lesion segmentation that utilizes synthesized
images. A new method of image synthesis is considered: joint intensity fusion (JIF). JIF …

Developing a written research productivity policy for a department of accounting: A case study

KB Walker, GM Fleishman… - Academy of Educational …, 2013 - search.proquest.com
The purpose of this paper is to report on experiences at the University of Wyoming, Department
of Accounting when developing a written research productivity policy for use in tenure …

Evidence for resonant transition radiation in decimetric continuum solar bursts

GD Fleishman, GM Nita, DE Gary - The Astrophysical Journal, 2005 - iopscience.iop.org
We investigate the properties of radio bursts observed in the 1-18 GHz frequency range that
display two distinct spectral components peaking at decimetric (dm) and centimetric (cm) …

[PDF][PDF] Geodesic refinement using james-stein estimators

GM Fleishman, PT Fletcher, BA Gutman… - Mathematical …, 2015 - inria.hal.science
In longitudinal imaging studies, geodesic regression in the space of diffeomorphisms [9] can
be used to fit a generative model to images over time. The parameters of the model, …

A hierarchical Bayesian model for multi-site Diffeomorphic image atlases

M Hromatka, M Zhang, GM Fleishman… - … Image Computing and …, 2015 - Springer
Image templates, or atlases, play a critical role in imaging studies by providing a common
anatomical coordinate system for analysis of shape and function. It is now common to estimate …

Fast gyrosynchrotron codes

GD Fleishman, AA Kuznetsov - The Astrophysical Journal, 2010 - iopscience.iop.org
… continuous approximation is sufficient for many practical applications, the low-frequency
harmonic structure can also often be of interest, especially for the anisotropic case (Fleishman & …

Adaptive gradient descent optimization of initial momenta for geodesic shooting in diffeomorphisms

GM Fleishman, PM Thompson - 2017 IEEE 14th International …, 2017 - ieeexplore.ieee.org
Diffeomorphic image registration algorithms are widely used in medical imaging, and
require optimization of a high-dimensional nonlinear objective function. The function being …