Search Results for author: Qingjie Meng

Found 12 papers, 3 papers with code

DeepMesh: Mesh-based Cardiac Motion Tracking using Deep Learning

no code implementations25 Sep 2023 Qingjie Meng, Wenjia Bai, Declan P O'Regan, and Daniel Rueckert

We propose a novel learning framework, DeepMesh, which propagates a template heart mesh to a subject space and estimates the 3D motion of the heart mesh from CMR images for individual subjects.

Motion Estimation

Mesh-based 3D Motion Tracking in Cardiac MRI using Deep Learning

no code implementations5 Sep 2022 Qingjie Meng, Wenjia Bai, Tianrui Liu, Declan P O'Regan, Daniel Rueckert

By developing a differentiable mesh-to-image rasterizer, the method is able to leverage the anatomical shape information from 2D multi-view CMR images for 3D motion estimation.

Motion Estimation

MulViMotion: Shape-aware 3D Myocardial Motion Tracking from Multi-View Cardiac MRI

no code implementations29 Jul 2022 Qingjie Meng, Chen Qin, Wenjia Bai, Tianrui Liu, Antonio de Marvao, Declan P O'Regan, Daniel Rueckert

To address this problem, we propose a novel multi-view motion estimation network (MulViMotion), which integrates 2D cine CMR images acquired in short-axis and long-axis planes to learn a consistent 3D motion field of the heart.

Motion Estimation

Video Summarization through Reinforcement Learning with a 3D Spatio-Temporal U-Net

no code implementations19 Jun 2021 Tianrui Liu, Qingjie Meng, Jun-Jie Huang, Athanasios Vlontzos, Daniel Rueckert, Bernhard Kainz

Intelligent video summarization algorithms allow to quickly convey the most relevant information in videos through the identification of the most essential and explanatory content while removing redundant video frames.

reinforcement-learning Reinforcement Learning (RL) +1

Mutual Information-based Disentangled Neural Networks for Classifying Unseen Categories in Different Domains: Application to Fetal Ultrasound Imaging

no code implementations30 Oct 2020 Qingjie Meng, Jacqueline Matthew, Veronika A. Zimmer, Alberto Gomez, David F. A. Lloyd, Daniel Rueckert, Bernhard Kainz

To address this problem, we propose Mutual Information-based Disentangled Neural Networks (MIDNet), which extract generalizable categorical features to transfer knowledge to unseen categories in a target domain.

Image Classification

Unsupervised Cross-domain Image Classification by Distance Metric Guided Feature Alignment

1 code implementation19 Aug 2020 Qingjie Meng, Daniel Rueckert, Bernhard Kainz

The proposed MetFA method explicitly and directly learns the latent representation without using domain adversarial training.

General Classification Image Classification +1

Ultrasound Video Summarization using Deep Reinforcement Learning

1 code implementation19 May 2020 Tianrui Liu, Qingjie Meng, Athanasios Vlontzos, Jeremy Tan, Daniel Rueckert, Bernhard Kainz

We show that our method is superior to alternative video summarization methods and that it preserves essential information required by clinical diagnostic standards.

reinforcement-learning Reinforcement Learning (RL) +1

Semi-supervised Learning of Fetal Anatomy from Ultrasound

no code implementations30 Aug 2019 Jeremy Tan, Anselm Au, Qingjie Meng, Bernhard Kainz

Semi-supervised learning methods have achieved excellent performance on standard benchmark datasets using very few labelled images.

Anatomy General Classification

Representation Disentanglement for Multi-task Learning with application to Fetal Ultrasound

1 code implementation21 Aug 2019 Qingjie Meng, Nick Pawlowski, Daniel Rueckert, Bernhard Kainz

These entangled image properties lead to a semantically redundant feature encoding for the relevant task and thus lead to poor generalization of deep learning algorithms.

Anatomy Disentanglement +1

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