2 code implementations • 5 Jun 2023 • Cagan Alkan, Morteza Mardani, Shreyas S. Vasanawala, John M. Pauly
Experiments on public MRI datasets show improved reconstruction quality of the proposed AutoSamp method over the prevailing variable density and variable density Poisson disc sampling.
no code implementations • 9 Nov 2022 • Ke Lei, Ali B. Syed, Xucheng Zhu, John M. Pauly, Shreyas S. Vasanawala
We propose a deep-learning framework, trained by radiologists' supervision, for automating FOV prescription.
no code implementations • 6 Nov 2021 • Ke Lei, John M. Pauly, Shreyas S. Vasanawala
We propose a framework with multi-task CNN model trained with calibrated labels and inferenced with image rulers.
no code implementations • NeurIPS Workshop Deep_Invers 2021 • Batu Ozturkler, Arda Sahiner, Tolga Ergen, Arjun D Desai, John M. Pauly, Shreyas Vasanawala, Morteza Mardani, Mert Pilanci
Model-based deep learning approaches have recently shown state-of-the-art performance for accelerated MRI reconstruction.
1 code implementation • NeurIPS Workshop Deep_Invers 2021 • Victoria Liu, Kanghyun Ryu, Cagan Alkan, John M. Pauly, Shreyas Vasanawala
To address this issue, we propose multi-task learning (MTL) schemes that can jointly reconstruct multiple datasets.
no code implementations • NeurIPS Workshop Deep_Invers 2021 • Philip M Adamson, Beliz Gunel, Jeffrey Dominic, Arjun D Desai, Daniel Spielman, Shreyas Vasanawala, John M. Pauly, Akshay Chaudhari
Self-supervised learning (SSL) has become a popular pre-training tool due to its ability to capture generalizable and domain-specific feature representations of the underlying data for downstream tasks.
no code implementations • 12 Jun 2021 • Nicholas Dwork, Daniel O'Connor, Ethan M. I. Johnson, Corey A. Baron, Jeremy W. Gordon, John M. Pauly, Peder E. Z. Larson
The Gridding algorithm has shown great utility for reconstructing images from non-uniformly spaced samples in the Fourier domain in several imaging modalities.
no code implementations • 23 Oct 2020 • Vineet Edupuganti, Morteza Mardani, Shreyas Vasanawala, John M. Pauly
Reliable medical image recovery is crucial for accurate patient diagnoses, but little prior work has centered on quantifying uncertainty when using non-transparent deep learning approaches to reconstruct high-quality images from limited measured data.
no code implementations • 23 Oct 2020 • Cagan Alkan, Morteza Mardani, Shreyas Vasanawala, John M. Pauly
Accelerating MRI scans requires optimal sampling of k-space data.
1 code implementation • 29 Aug 2020 • Elizabeth K. Cole, John M. Pauly, Shreyas S. Vasanawala, Frank Ong
Deep learning-based image reconstruction methods have achieved promising results across multiple MRI applications.
no code implementations • 10 Jul 2020 • Liyue Shen, Wentao Zhu, Xiaosong Wang, Lei Xing, John M. Pauly, Baris Turkbey, Stephanie Anne Harmon, Thomas Hogue Sanford, Sherif Mehralivand, Peter Choyke, Bradford Wood, Daguang Xu
Multi-domain data are widely leveraged in vision applications taking advantage of complementary information from different modalities, e. g., brain tumor segmentation from multi-parametric magnetic resonance imaging (MRI).
no code implementations • 1 Jul 2020 • Nicholas Dwork, Ethan M. I. Johnson, Daniel O'Connor, Jeremy W. Gordon, Adam B. Kerr, Corey A. Baron, John M. Pauly, Peder E. Z. Larson
In this manuscript, we present a generalization of several existing iterative model based algorithms.
no code implementations • 14 Apr 2020 • Nicholas Dwork, Corey A. Baron, Ethan M. I. Johnson, Daniel O'Connor, John M. Pauly, Peder E. Z. Larson
We present a fast method for generating random samples according to a variable density Poisson-disc distribution.
1 code implementation • 3 Apr 2020 • Elizabeth K. Cole, Joseph Y. Cheng, John M. Pauly, Shreyas S. Vasanawala
Many real-world signal sources are complex-valued, having real and imaginary components.
no code implementations • 11 Feb 2020 • Nicholas Dwork, Daniel O'Connor, Corey A. Baron, Ethan M. I. Johnson, Adam B. Kerr, John M. Pauly, Peder E. Z. Larson
In this work, we take advantage of the structure of this wavelet transform and identify an affine transformation that increases the sparsity of the result.
no code implementations • 5 Dec 2019 • Jeffrey Ma, Ukash Nakarmi, Cedric Yue Sik Kin, Christopher Sandino, Joseph Y. Cheng, Ali B. Syed, Peter Wei, John M. Pauly, Shreyas Vasanawala
Magnetic Resonance Imaging (MRI) suffers from several artifacts, the most common of which are motion artifacts.
no code implementations • 15 Oct 2019 • Ke Lei, Morteza Mardani, John M. Pauly, Shreyas S. Vasanawala
The reconstruction networks consist of a generator which suppresses the input image artifacts, and a discriminator using a pool of (unpaired) labels to adjust the reconstruction quality.
1 code implementation • 19 Mar 2019 • Joseph Y. Cheng, Feiyu Chen, Christopher Sandino, Morteza Mardani, John M. Pauly, Shreyas S. Vasanawala
Data-driven learning provides a solution to address these challenges.
1 code implementation • 8 May 2018 • Joseph Y. Cheng, Feiyu Chen, Marcus T. Alley, John M. Pauly, Shreyas S. Vasanawala
To increase the flexibility and scalability of deep neural networks for image reconstruction, a framework is proposed based on bandpass filtering.
2 code implementations • 31 May 2017 • Morteza Mardani, Enhao Gong, Joseph Y. Cheng, Shreyas Vasanawala, Greg Zaharchuk, Marcus Alley, Neil Thakur, Song Han, William Dally, John M. Pauly, Lei Xing
A multilayer convolutional neural network is then jointly trained based on diagnostic quality images to discriminate the projection quality.