Search Results for author: Pengfei Guo

Found 17 papers, 8 papers with code

Towards Federated Learning Under Resource Constraints via Layer-wise Training and Depth Dropout

no code implementations11 Sep 2023 Pengfei Guo, Warren Richard Morningstar, Raviteja Vemulapalli, Karan Singhal, Vishal M. Patel, Philip Andrew Mansfield

To mitigate this issue and facilitate training of large models on edge devices, we introduce a simple yet effective strategy, Federated Layer-wise Learning, to simultaneously reduce per-client memory, computation, and communication costs.

Federated Learning Representation Learning +1

MoViT: Memorizing Vision Transformers for Medical Image Analysis

no code implementations27 Mar 2023 Yiqing Shen, Pengfei Guo, Jingpu Wu, Qianqi Huang, Nhat Le, Jinyuan Zhou, Shanshan Jiang, Mathias Unberath

We evaluate our method on a public histology image dataset and an in-house MRI dataset, demonstrating that MoViT applied to varied medical image analysis tasks, can outperform vanilla transformer models across varied data regimes, especially in cases where only a small amount of annotated data is available.

Decision Making Inductive Bias

Escaping Data Scarcity for High-Resolution Heterogeneous Face Hallucination

no code implementations CVPR 2022 Yiqun Mei, Pengfei Guo, Vishal M. Patel

In Heterogeneous Face Recognition (HFR), the objective is to match faces across two different domains such as visible and thermal.

Face Generation Face Hallucination +5

Closing the Generalization Gap of Cross-silo Federated Medical Image Segmentation

no code implementations CVPR 2022 An Xu, Wenqi Li, Pengfei Guo, Dong Yang, Holger Roth, Ali Hatamizadeh, Can Zhao, Daguang Xu, Heng Huang, Ziyue Xu

In this work, we propose a novel training framework FedSM to avoid the client drift issue and successfully close the generalization gap compared with the centralized training for medical image segmentation tasks for the first time.

Federated Learning Image Segmentation +3

On-the-Fly Test-time Adaptation for Medical Image Segmentation

1 code implementation10 Mar 2022 Jeya Maria Jose Valanarasu, Pengfei Guo, Vibashan VS, Vishal M. Patel

During test-time, the model takes in just the new test image and generates a domain code to adapt the features of source model according to the test data.

Image Segmentation Medical Image Segmentation +2

ReconFormer: Accelerated MRI Reconstruction Using Recurrent Transformer

1 code implementation23 Jan 2022 Pengfei Guo, Yiqun Mei, Jinyuan Zhou, Shanshan Jiang, Vishal M. Patel

Accelerating magnetic resonance image (MRI) reconstruction process is a challenging ill-posed inverse problem due to the excessive under-sampling operation in k-space.

Feature Correlation MRI Reconstruction

Reference-based Magnetic Resonance Image Reconstruction Using Texture Transformer

no code implementations18 Nov 2021 Pengfei Guo, Vishal M. Patel

Deep Learning (DL) based methods for magnetic resonance (MR) image reconstruction have been shown to produce superior performance in recent years.

MRI Reconstruction

Over-and-Under Complete Convolutional RNN for MRI Reconstruction

no code implementations16 Jun 2021 Pengfei Guo, Jeya Maria Jose Valanarasu, Puyang Wang, Jinyuan Zhou, Shanshan Jiang, Vishal M. Patel

Reconstructing magnetic resonance (MR) images from undersampled data is a challenging problem due to various artifacts introduced by the under-sampling operation.

MRI Reconstruction

Multi-institutional Collaborations for Improving Deep Learning-based Magnetic Resonance Image Reconstruction Using Federated Learning

1 code implementation CVPR 2021 Pengfei Guo, Puyang Wang, Jinyuan Zhou, Shanshan Jiang, Vishal M. Patel

However, the generalizability of models trained with the FL setting can still be suboptimal due to domain shift, which results from the data collected at multiple institutions with different sensors, disease types, and acquisition protocols, etc.

Federated Learning Image Reconstruction

Cuid: A new study of perceived image quality and its subjective assessment

no code implementations28 Sep 2020 Lucie Lévêque, Ji Yang, Xiaohan Yang, Pengfei Guo, Kenneth Dasalla, Leida Li, Yingying Wu, Hantao Liu

It is thus critical to acquire reliable subjective data with controlled perception experiments that faithfully reflect human behavioural responses to distortions in visual signals.

Image Quality Assessment

Confidence-guided Lesion Mask-based Simultaneous Synthesis of Anatomic and Molecular MR Images in Patients with Post-treatment Malignant Gliomas

1 code implementation6 Aug 2020 Pengfei Guo, Puyang Wang, Rajeev Yasarla, Jinyuan Zhou, Vishal M. Patel, Shanshan Jiang

Data-driven automatic approaches have demonstrated their great potential in resolving various clinical diagnostic dilemmas in neuro-oncology, especially with the help of standard anatomic and advanced molecular MR images.

Lesion Mask-based Simultaneous Synthesis of Anatomic and MolecularMR Images using a GAN

1 code implementation26 Jun 2020 Pengfei Guo, Puyang Wang, Jinyuan Zhou, Vishal M. Patel, Shanshan Jiang

Data-driven automatic approaches have demonstrated their great potential in resolving various clinical diagnostic dilemmas for patients with malignant gliomas in neuro-oncology with the help of conventional and advanced molecular MR images.

Data Augmentation

Customized OCT images compression scheme with deep neural network

no code implementations24 Aug 2019 Pengfei Guo, Dawei Li, Xingde Li

We added customized skip connections between the compression CNNs and the reconstruction CNNs to reserve the detail information and trained the two nets together with the semantic segmented image patches from data preprocessing module.

Image Compression MS-SSIM +1

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