Search Results for author: Charles Zheng

Found 5 papers, 2 papers with code

Knowing what you know in brain segmentation using Bayesian deep neural networks

1 code implementation3 Dec 2018 Patrick McClure, Nao Rho, John A. Lee, Jakub R. Kaczmarzyk, Charles Zheng, Satrajit S. Ghosh, Dylan Nielson, Adam G. Thomas, Peter Bandettini, Francisco Pereira

In this paper, we describe a Bayesian deep neural network (DNN) for predicting FreeSurfer segmentations of structural MRI volumes, in minutes rather than hours.

Brain Segmentation Variational Inference

Learning Summary Statistic for Approximate Bayesian Computation via Deep Neural Network

no code implementations8 Oct 2015 Bai Jiang, Tung-Yu Wu, Charles Zheng, Wing H. Wong

Approximate Bayesian Computation (ABC) methods are used to approximate posterior distributions in models with unknown or computationally intractable likelihoods.

Computational Efficiency

Quantifying error in estimates of human brain fiber directions using Earth Mover's Distance

no code implementations19 Nov 2014 Charles Zheng, Franco Pestilli, Ariel Rokem

To elucidate the structure of these connections, algorithms for tracking bundles of axonal fibers through the subcortical white matter rely on local estimates of the fiber orientation distribution function (fODF) in different parts of the brain.

Deconvolution of High-Dimensional Mixtures via Boosting, with Application to Diffusion-Weighted MRI of Human Brain

no code implementations25 Sep 2014 Charles Zheng, Franco Pestilli, Ariel Rokem

Diffusion-weighted magnetic resonance imaging (DWI) and fiber tractography are the only methods to measure the structure of the white matter in the living human brain.

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