Search Results for author: Weitian Chen

Found 11 papers, 4 papers with code

$k$-$t$ CLAIR: Self-Consistency Guided Multi-Prior Learning for Dynamic Parallel MR Image Reconstruction

1 code implementation17 Oct 2023 Liping Zhang, Weitian Chen

Cardiac magnetic resonance imaging (CMR) has been widely used in clinical practice for the medical diagnosis of cardiac diseases.

Medical Diagnosis MRI Reconstruction

CartiMorph: a framework for automated knee articular cartilage morphometrics

1 code implementation3 Aug 2023 Yongcheng Yao, Junru Zhong, Liping Zhang, Sheheryar Khan, Weitian Chen

We compared our FCL measurements with those from a previous study and found that our measurements deviated less from the ground truths.

Image Registration Segmentation

An Uncertainty Aided Framework for Learning based Liver $T_1ρ$ Mapping and Analysis

no code implementations6 Jul 2023 Chaoxing Huang, Vincent Wai Sun Wong, Queenie Chan, Winnie Chiu Wing Chu, Weitian Chen

Approach: To address this need, we propose a parametric map refinement approach for learning-based $T_1\rho$ mapping and train the model in a probabilistic way to model the uncertainty.

CAMP-Net: Consistency-Aware Multi-Prior Network for Accelerated MRI Reconstruction

1 code implementation20 Jun 2023 Liping Zhang, Xiaobo Li, Weitian Chen

To maximize the benefits of image domain and k-domain prior knowledge, the reconstructions are aggregated in a frequency fusion module, exploiting their complementary properties to optimize the trade-off between artifact removal and fine detail preservation.

Image Enhancement MRI Reconstruction

Unsupervised Domain Adaptation for Automated Knee Osteoarthritis Phenotype Classification

no code implementations14 Dec 2022 Junru Zhong, Yongcheng Yao, Donal G. Cahill, Fan Xiao, Siyue Li, Jack Lee, Kevin Ki-Wai Ho, Michael Tim-Yun Ong, James F. Griffith, Weitian Chen

Conclusion: The proposed UDA approach improves the performance of automated knee OA phenotype classification for small target datasets by utilising a large, high-quality source dataset for training.

Classification Phenotype classification +2

Uncertainty-Aware Self-supervised Neural Network for Liver $T_{1ρ}$ Mapping with Relaxation Constraint

no code implementations7 Jul 2022 Chaoxing Huang, Yurui Qian, Simon Chun Ho Yu, Jian Hou, Baiyan Jiang, Queenie Chan, Vincent Wai-Sun Wong, Winnie Chiu-Wing Chu, Weitian Chen

Epistemic uncertainty and aleatoric uncertainty are modelled for the $T_{1\rho}$ quantification network to provide a Bayesian confidence estimation of the $T_{1\rho}$ mapping.

Self-Supervised Learning

Denoising of Three-Dimensional Fast Spin Echo Magnetic Resonance Images of Knee Joints using Spatial-Variant Noise-Relevant Residual Learning of Convolution Neural Network

no code implementations21 Apr 2022 Shutian Zhao, Donal G. Cahill, Siyue Li, Fan Xiao, Thierry Blu, James F Griffith, Weitian Chen

In this study, inherent true noise information from 2-NEX acquisition was used to develop a deep-learning model based on residual learning of convolutional neural network (CNN), and this model was used to suppress the noise in 3D FSE MR images of knee joints.

Denoising

Source-free unsupervised domain adaptation for cross-modality abdominal multi-organ segmentation

no code implementations24 Nov 2021 Jin Hong, Yu-Dong Zhang, Weitian Chen

Domain adaptation is crucial for transferring the knowledge from the source labeled CT dataset to the target unlabeled MR dataset in abdominal multi-organ segmentation.

Organ Segmentation Segmentation +1

Multipath CNN with alpha matte inference for knee tissue segmentation from MRI

no code implementations29 Sep 2021 Sheheryar Khan, Basim Azam, Yongcheng Yao, Weitian Chen

A novel multipath CNN-based method is proposed, which consists of an encoder decoder-based segmentation network in combination with a low rank tensor-reconstructed segmentation network.

Image Matting Segmentation

Unsupervised domain adaptation for cross-modality liver segmentation via joint adversarial learning and self-learning

1 code implementation13 Sep 2021 Jin Hong, Simon Chun-Ho Yu, Weitian Chen

In this work, we report a novel unsupervised domain adaptation framework for cross-modality liver segmentation via joint adversarial learning and self-learning.

Computed Tomography (CT) Liver Segmentation +4

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