Search Results for author: Gyutaek Oh

Found 9 papers, 0 papers with code

scHyena: Foundation Model for Full-Length Single-Cell RNA-Seq Analysis in Brain

no code implementations4 Oct 2023 Gyutaek Oh, Baekgyu Choi, Inkyung Jung, Jong Chul Ye

Single-cell RNA sequencing (scRNA-seq) has made significant strides in unraveling the intricate cellular diversity within complex tissues.

Imputation

Unpaired Deep Learning for Pharmacokinetic Parameter Estimation from Dynamic Contrast-Enhanced MRI

no code implementations7 Jun 2023 Gyutaek Oh, Won-Jin Moon, Jong Chul Ye

DCE-MRI provides information about vascular permeability and tissue perfusion through the acquisition of pharmacokinetic parameters.

Annealed Score-Based Diffusion Model for MR Motion Artifact Reduction

no code implementations8 Jan 2023 Gyutaek Oh, Jeong Eun Lee, Jong Chul Ye

Motion artifact reduction is one of the important research topics in MR imaging, as the motion artifact degrades image quality and makes diagnosis difficult.

CycleQSM: Unsupervised QSM Deep Learning using Physics-Informed CycleGAN

no code implementations7 Dec 2020 Gyutaek Oh, Hyokyoung Bae, Hyun-Seo Ahn, Sung-Hong Park, Jong Chul Ye

In contrast to the conventional cycleGAN, our novel cycleGAN has only one generator and one discriminator thanks to the known dipole kernel.

Unsupervised MR Motion Artifact Deep Learning using Outlier-Rejecting Bootstrap Aggregation

no code implementations12 Nov 2020 Gyutaek Oh, Jeong Eun Lee, Jong Chul Ye

Recently, deep learning approaches for MR motion artifact correction have been extensively studied.

Unpaired Deep Learning for Accelerated MRI using Optimal Transport Driven CycleGAN

no code implementations29 Aug 2020 Gyutaek Oh, Byeongsu Sim, Hyungjin Chung, Leonard Sunwoo, Jong Chul Ye

Recently, deep learning approaches for accelerated MRI have been extensively studied thanks to their high performance reconstruction in spite of significantly reduced runtime complexity.

Generative Adversarial Network

Geometric Approaches to Increase the Expressivity of Deep Neural Networks for MR Reconstruction

no code implementations17 Mar 2020 Eunju Cha, Gyutaek Oh, Jong Chul Ye

Recently, it was shown that an encoder-decoder convolutional neural network (CNN) can be interpreted as a piecewise linear basis-like representation, whose specific representation is determined by the ReLU activation patterns for a given input image.

Optimal Transport driven CycleGAN for Unsupervised Learning in Inverse Problems

no code implementations25 Sep 2019 Byeongsu Sim, Gyutaek Oh, Jeongsol Kim, Chanyong Jung, Jong Chul Ye

To improve the performance of classical generative adversarial network (GAN), Wasserstein generative adversarial networks (W-GAN) was developed as a Kantorovich dual formulation of the optimal transport (OT) problem using Wasserstein-1 distance.

Computed Tomography (CT) Generative Adversarial Network +1

OPTIMAL TRANSPORT, CYCLEGAN, AND PENALIZED LS FOR UNSUPERVISED LEARNING IN INVERSE PROBLEMS

no code implementations25 Sep 2019 Byeongsu Sim, Gyutaek Oh, Sungjun Lim, and Jong Chul Ye

Specifically, we reveal that a cycleGAN architecture can be derived as a dual formulation of the optimal transport problem, if the PLS with a deep learning penalty is used as a transport cost between the two probability measures from measurements and unknown images.

Generative Adversarial Network

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