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This paper proposes an unsupervised cross-modality domain adaptation approach based on pixel alignment and self-training. Pixel alignment transfers ceT1 scans to hrT2 modality, helping to reduce domain shift in the training segmentation…

Computer Vision and Pattern Recognition · Computer Science 2021-09-30 Hexin Dong , Fei Yu , Jie Zhao , Bin Dong , Li Zhang

Segmentation of tumors in brain MRI images is a challenging task, where most recent methods demand large volumes of data with pixel-level annotations, which are generally costly to obtain. In contrast, image-level annotations, where only…

Image and Video Processing · Electrical Eng. & Systems 2019-11-07 Sergey Pavlov , Alexey Artemov , Maksim Sharaev , Alexander Bernstein , Evgeny Burnaev

Prostate cancer is a leading cause of mortality in men, yet interpretation of T2-weighted prostate MRI remains challenging due to subtle and heterogeneous lesions. We developed an interpretable framework for automatic cancer detection using…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Vahid Monfared , Mohammad Hadi Gharib , Ali Sabri , Maryam Shahali , Farid Rashidi , Amit Mehta , Reza Rawassizadeh

We present WSSAMNet, a weakly supervised method for medical image registration. Ours is a two step method, with the first step being the computation of segmentation masks of the fixed and moving volumes. These masks are then used to attend…

Image and Video Processing · Electrical Eng. & Systems 2022-03-15 Sahar Almahfouz Nasser , Nikhil Cherian Kurian , Saqib Shamsi , Mohit Meena , Amit Sethi

Most uses of Meta-Learning in visual recognition are very often applied to image classification, with a relative lack of works in other tasks {such} as segmentation and detection. We propose a generic Meta-Learning framework for few-shot…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Hugo Oliveira , Pedro H. T. Gama , Isabelle Bloch , Roberto Marcondes Cesar

Gliomas are brain tumors composed of different highly heterogeneous histological subregions. Image analysis techniques to identify relevant tumor substructures have high potential for improving patient diagnosis, treatment and prognosis.…

Image and Video Processing · Electrical Eng. & Systems 2022-07-18 José Gerardo Suárez-García Javier Miguel Hernández-López , Eduardo Moreno-Barbosa , Benito de Celis-Alonso

There are many approaches to weakly-supervised training of networks to segment 2D images. By contrast, existing approaches to segmenting volumetric images rely on full-supervision of a subset of 2D slices of the 3D volume. We propose an…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Udaranga Wickramasinghe , Patrick M. Jensen , Mian Shah , Jiancheng Yang , Pascal Fua

The absence of adequately sufficient expert-level tumor annotations hinders the effectiveness of supervised learning based opportunistic cancer screening on medical imaging. Clinical reports (that are rich in descriptive textual details)…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Guangyu Guo , Jiawen Yao , Yingda Xia , Tony C. W. Mok , Zhilin Zheng , Junwei Han , Le Lu , Dingwen Zhang , Jian Zhou , Ling Zhang

We propose a Deep learning-based weak label learning method for analyzing whole slide images (WSIs) of Hematoxylin and Eosin (H&E) stained tumor tissue not requiring pixel-level or tile-level annotations using Self-supervised pre-training…

Image and Video Processing · Electrical Eng. & Systems 2023-06-29 Yoni Schirris , Efstratios Gavves , Iris Nederlof , Hugo Mark Horlings , Jonas Teuwen

In this work, we propose to resolve the issue existing in current deep learning based organ segmentation systems that they often produce results that do not capture the overall shape of the target organ and often lack smoothness. Since…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Yuan Xue , Hui Tang , Zhi Qiao , Guanzhong Gong , Yong Yin , Zhen Qian , Chao Huang , Wei Fan , Xiaolei Huang

Cancer is one of the most life-threatening diseases worldwide, and head and neck (H&N) cancer is a prevalent type with hundreds of thousands of new cases recorded each year. Clinicians use medical imaging modalities such as computed…

Image and Video Processing · Electrical Eng. & Systems 2023-06-02 Ikboljon Sobirov

Weakly supervised semantic segmentation (WSSS) aims at learning a semantic segmentation model with only image-level tags. Despite intensive research on deep learning approaches over a decade, there is still a significant performance gap…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Qi Lai , Chi-Man Vong

Automatic segmentation is essential for the brain tumor diagnosis, disease prognosis, and follow-up therapy of patients with gliomas. Still, accurate detection of gliomas and their sub-regions in multimodal MRI is very challenging due to…

Image and Video Processing · Electrical Eng. & Systems 2022-12-20 Ramy A. Zeineldin , Mohamed E. Karar , Oliver Burgert , Franziska Mathis-Ullrich

Vision-language models (VLMs), despite their extraordinary zero-shot capabilities, are vulnerable to distribution shifts. Test-time adaptation (TTA) emerges as a predominant strategy to adapt VLMs to unlabeled test data on the fly. However,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Zhichen Zeng , Wenxuan Bao , Xiao Lin , Ruizhong Qiu , Tianxin Wei , Xuying Ning , Yuchen Yan , Chen Luo , Monica Xiao Cheng , Jingrui He , Hanghang Tong

Unsupervised Multi-View Stereo (MVS) methods have achieved promising progress recently. However, previous methods primarily depend on the photometric consistency assumption, which may suffer from two limitations: indistinguishable regions…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Kaiqiang Xiong , Rui Peng , Zhe Zhang , Tianxing Feng , Jianbo Jiao , Feng Gao , Ronggang Wang

Convolutional Neural Networks (CNNs) work very well for supervised learning problems when the training dataset is representative of the variations expected to be encountered at test time. In medical image segmentation, this premise is…

Image and Video Processing · Electrical Eng. & Systems 2021-01-26 Neerav Karani , Ertunc Erdil , Krishna Chaitanya , Ender Konukoglu

Weakly-supervised semantic segmentation (WSS) ensures high-quality segmentation with limited data and excels when employed as input seed masks for large-scale vision models such as Segment Anything. However, WSS faces challenges related to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Sanghyun Jo , Fei Pan , In-Jae Yu , Kyungsu Kim

Convolutional neural networks (CNNs) have achieved state-of-the-art performance for automatic medical image segmentation. However, they have not demonstrated sufficiently accurate and robust results for clinical use. In addition, they are…

Computer Vision and Pattern Recognition · Computer Science 2018-07-23 Guotai Wang , Wenqi Li , Maria A. Zuluaga , Rosalind Pratt , Premal A. Patel , Michael Aertsen , Tom Doel , Anna L. David , Jan Deprest , Sebastien Ourselin , Tom Vercauteren

Medical segmentation is performed to determine the bounds of regions of interest (ROI) prior to surgery. By allowing the study of growth, structure, and behaviour of the ROI in the planning phase, critical information can be obtained,…

Image and Video Processing · Electrical Eng. & Systems 2020-10-06 Bao Nguyen , Adam Feldman , Sarath Bethapudi , Andrew Jennings , Chris G. Willcocks

This paper presents a comprehensive study focused on disentangling hippocampal shape variations from diffusion tensor imaging (DTI) datasets within the context of neurological disorders. Leveraging a Mesh Variational Autoencoder (VAE)…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Jakaria Rabbi , Johannes Kiechle , Christian Beaulieu , Nilanjan Ray , Dana Cobzas
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