Search Results for author: Roger Tam

Found 6 papers, 5 papers with code

MProtoNet: A Case-Based Interpretable Model for Brain Tumor Classification with 3D Multi-parametric Magnetic Resonance Imaging

1 code implementation13 Apr 2023 Yuanyuan Wei, Roger Tam, Xiaoying Tang

Recent applications of deep convolutional neural networks in medical imaging raise concerns about their interpretability.

SSiT: Saliency-guided Self-supervised Image Transformer for Diabetic Retinopathy Grading

1 code implementation20 Oct 2022 Yijin Huang, Junyan Lyu, Pujin Cheng, Roger Tam, Xiaoying Tang

Specifically, two saliency-guided learning tasks are employed in SSiT: (1) Saliency-guided contrastive learning is conducted based on the momentum contrast, wherein fundus images' saliency maps are utilized to remove trivial patches from the input sequences of the momentum-updated key encoder.

Contrastive Learning Diabetic Retinopathy Grading +1

Identifying the key components in ResNet-50 for diabetic retinopathy grading from fundus images: a systematic investigation

2 code implementations27 Oct 2021 Yijin Huang, Li Lin, Pujin Cheng, Junyan Lyu, Roger Tam, Xiaoying Tang

To identify the key components in a standard deep learning framework (ResNet-50) for DR grading, we systematically analyze the impact of several major components.

Data Augmentation Diabetic Retinopathy Grading

LDDMM-Face: Large Deformation Diffeomorphic Metric Learning for Cross-annotation Face Alignment

1 code implementation29 Sep 2021 Huilin Yang, Junyan Lyu, Pujin Cheng, Roger Tam, Xiaoying Tang

We innovatively propose a flexible and consistent cross-annotation face alignment framework, LDDMM-Face, the key contribution of which is a deformation layer that naturally embeds facial geometry in a diffeomorphic way.

Face Alignment Metric Learning

Scanner Invariant Multiple Sclerosis Lesion Segmentation from MRI

no code implementations22 Oct 2019 Shahab Aslani, Vittorio Murino, Michael Dayan, Roger Tam, Diego Sona, Ghassan Hamarneh

This paper presents a simple and effective generalization method for magnetic resonance imaging (MRI) segmentation when data is collected from multiple MRI scanning sites and as a consequence is affected by (site-)domain shifts.

Lesion Segmentation MRI segmentation +1

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