Search Results for author: Snehashis Roy

Found 8 papers, 1 papers with code

Contrast Adaptive Tissue Classification by Alternating Segmentation and Synthesis

no code implementations4 Mar 2021 Dzung L. Pham, Yi-Yu Chou, Blake E. Dewey, Daniel S. Reich, John A. Butman, Snehashis Roy

Deep learning approaches to the segmentation of magnetic resonance images have shown significant promise in automating the quantitative analysis of brain images.

Classification General Classification

Extracting 2D weak labels from volume labels using multiple instance learning in CT hemorrhage detection

1 code implementation13 Nov 2019 Samuel W. Remedios, Zihao Wu, Camilo Bermudez, Cailey I. Kerley, Snehashis Roy, Mayur B. Patel, John A. Butman, Bennett A. Landman, Dzung L. Pham

Multiple instance learning (MIL) is a supervised learning methodology that aims to allow models to learn instance class labels from bag class labels, where a bag is defined to contain multiple instances.

Multiple Instance Learning

Alternating Segmentation and Simulation for Contrast Adaptive Tissue Classification

no code implementations17 Nov 2018 Dzung L. Pham, Snehashis Roy

In this work, we propose a new framework for supervised segmentation approaches that is robust to contrast differences between the training MR image and the input image.

Anatomy Classification +2

Synthesizing CT from Ultrashort Echo-Time MR Images via Convolutional Neural Networks

no code implementations27 Jul 2018 Snehashis Roy, John A. Butman, Dzung L. Pham

Accurate PET image reconstruction requires attenuation correction, which is based on the electron density of tissues and can be obtained from CT images.

Image Reconstruction

TBI Contusion Segmentation from MRI using Convolutional Neural Networks

no code implementations27 Jul 2018 Snehashis Roy, John A. Butman, Leighton Chan, Dzung L. Pham

In this paper, we propose a fully convolutional neural network (CNN) model to segment contusions and lesions from brain magnetic resonance (MR) images of patients with TBI.

Lesion Segmentation

Multiple Sclerosis Lesion Segmentation from Brain MRI via Fully Convolutional Neural Networks

no code implementations24 Mar 2018 Snehashis Roy, John A. Butman, Daniel S. Reich, Peter A. Calabresi, Dzung L. Pham

In this paper, we propose a fully convolutional neural network (CNN) based method to segment white matter lesions from multi-contrast MR images.

Lesion Segmentation Segmentation

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