Search Results for author: Wenqi Lu

Found 11 papers, 6 papers with code

Development of Automated Neural Network Prediction for Echocardiographic Left ventricular Ejection Fraction

no code implementations18 Mar 2024 Yuting Zhang, Boyang Liu, Karina V. Bunting, David Brind, Alexander Thorley, Andreas Karwath, Wenqi Lu, Diwei Zhou, Xiaoxia Wang, Alastair R. Mobley, Otilia Tica, Georgios Gkoutos, Dipak Kotecha, Jinming Duan

Within the pipeline, an Atrous Convolutional Neural Network (ACNN) was first trained to segment the left ventricle (LV), before employing the area-length formulation based on the ellipsoid single-plane model to calculate LVEF values.

Ensemble Learning

Decoder-Only Image Registration

1 code implementation5 Feb 2024 Xi Jia, Wenqi Lu, Xinxing Cheng, Jinming Duan

For this, we propose a novel network architecture, termed LessNet in this paper, which contains only a learnable decoder, while entirely omitting the utilization of a learnable encoder.

Decoder Image Registration +1

Optimizing ADMM and Over-Relaxed ADMM Parameters for Linear Quadratic Problems

no code implementations1 Jan 2024 Jintao Song, Wenqi Lu, Yunwen Lei, Yuchao Tang, Zhenkuan Pan, Jinming Duan

The Alternating Direction Method of Multipliers (ADMM) has gained significant attention across a broad spectrum of machine learning applications.

Deblurring Image Deblurring +2

Fourier-Net+: Leveraging Band-Limited Representation for Efficient 3D Medical Image Registration

1 code implementation6 Jul 2023 Xi Jia, Alexander Thorley, Alberto Gomez, Wenqi Lu, Dipak Kotecha, Jinming Duan

Instead of directly predicting a full-resolution displacement field, our Fourier-Net learns a low-dimensional representation of the displacement field in the band-limited Fourier domain which our model-driven decoder converts to a full-resolution displacement field in the spatial domain.

Decoder Medical Image Registration +1

Fourier-Net: Fast Image Registration with Band-limited Deformation

1 code implementation29 Nov 2022 Xi Jia, Joseph Bartlett, Wei Chen, Siyang Song, Tianyang Zhang, Xinxing Cheng, Wenqi Lu, Zhaowen Qiu, Jinming Duan

Specifically, instead of our Fourier-Net learning to output a full-resolution displacement field in the spatial domain, we learn its low-dimensional representation in a band-limited Fourier domain.

Ranked #3 on Medical Image Registration on OASIS (val dsc metric)

Decoder Medical Image Registration +1

U-Net vs Transformer: Is U-Net Outdated in Medical Image Registration?

1 code implementation7 Aug 2022 Xi Jia, Joseph Bartlett, Tianyang Zhang, Wenqi Lu, Zhaowen Qiu, Jinming Duan

On the public 3D IXI brain dataset for atlas-based registration, we show that the performance of the vanilla U-Net is already comparable with that of state-of-the-art transformer-based networks (such as TransMorph), and that the proposed LKU-Net outperforms TransMorph by using only 1. 12% of its parameters and 10. 8% of its mult-adds operations.

Image Registration Long-range modeling +1

SlideGraph+: Whole Slide Image Level Graphs to Predict HER2Status in Breast Cancer

1 code implementation12 Oct 2021 Wenqi Lu, Michael Toss, Emad Rakha, Nasir Rajpoot, Fayyaz Minhas

The network was trained and tested on slides from The Cancer Genome Atlas (TCGA) in addition to two independent test datasets.

Decision Making Graph Neural Network +1

A new nonlocal forward model for diffuse optical tomography

no code implementations3 Jun 2019 Wenqi Lu, Jinming Duan, Joshua Deepak Veesa, Iain B. Styles

The forward model in diffuse optical tomography (DOT) describes how light propagates through a turbid medium.

Image Reconstruction

Graph- and finite element-based total variation models for the inverse problem in diffuse optical tomography

no code implementations7 Jan 2019 Wenqi Lu, Jinming Duan, David Orive-Miguel, Lionel Herve, Iain B. Styles

Total variation (TV) is a powerful regularization method that has been widely applied in different imaging applications, but is difficult to apply to diffuse optical tomography (DOT) image reconstruction (inverse problem) due to complex and unstructured geometries, non-linearity of the data fitting and regularization terms, and non-differentiability of the regularization term.

Image Reconstruction

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