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The ability to dynamically extend a model to new data and classes is critical for multiple organ and tumor segmentation. However, due to privacy regulations, accessing previous data and annotations can be problematic in the medical domain.…

Image and Video Processing · Electrical Eng. & Systems 2023-07-24 Yixiao Zhang , Xinyi Li , Huimiao Chen , Alan Yuille , Yaoyao Liu , Zongwei Zhou

Weakly supervised segmentation methods using bounding box annotations focus on obtaining a pixel-level mask from each box containing an object. Existing methods typically depend on a class-agnostic mask generator, which operates on the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Jungbeom Lee , Jihun Yi , Chaehun Shin , Sungroh Yoon

The Segment Anything Model (SAM) is a powerful foundation model that introduced revolutionary advancements in natural image segmentation. However, its performance remains sub-optimal when delineating the intricate structure of biomedical…

Image and Video Processing · Electrical Eng. & Systems 2023-10-05 Xiangru Li , Yifei Zhang , Liang Zhao

Annotation scarcity has become a major obstacle for training powerful deep-learning models for medical image segmentation, restricting their deployment in clinical scenarios. To address it, semi-supervised learning by exploiting abundant…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Qingjie Zeng , Yutong Xie , Zilin Lu , Mengkang Lu , Yicheng Wu , Yong Xia

Semi-supervised learning relaxes the need of large pixel-wise labeled datasets for image segmentation by leveraging unlabeled data. A prominent way to exploit unlabeled data is to regularize model predictions. Since the predictions of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Sukesh Adiga , Jose Dolz , Herve Lombaert

Localizing object parts precisely is essential for tasks such as object recognition and robotic manipulation. Recent part segmentation methods require extensive training data and labor-intensive annotations. Segment-Anything Model (SAM) has…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 S. B. van Rooij , G. J. Burghouts

Radiological images such as computed tomography (CT) and X-rays render anatomy with intrinsic structures. Being able to reliably locate the same anatomical structure across varying images is a fundamental task in medical image analysis. In…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Ke Yan , Jinzheng Cai , Dakai Jin , Shun Miao , Dazhou Guo , Adam P. Harrison , Youbao Tang , Jing Xiao , Jingjing Lu , Le Lu

Weakly supervised segmentation methods have gained significant attention due to their ability to reduce the reliance on costly pixel-level annotations during model training. However, the current weakly supervised nuclei segmentation…

Image and Video Processing · Electrical Eng. & Systems 2025-02-04 Ye Zhang , Yifeng Wang , Zijie Fang , Hao Bian , Linghan Cai , Ziyue Wang , Yongbing Zhang

3D weakly supervised semantic segmentation (3D WSSS) aims to achieve semantic segmentation by leveraging sparse or low-cost annotated data, significantly reducing reliance on dense point-wise annotations. Previous works mainly employ class…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Xiaoxu Xu , Xuexun Liu , Jinlong Li , Yitian Yuan , Qiudan Zhang , Lin Ma , Nicu Sebe , Xu Wang

Semi-supervised learning (SSL) for medical image segmentation is a challenging yet highly practical task, which reduces reliance on large-scale labeled dataset by leveraging unlabeled samples. Among SSL techniques, the weak-to-strong…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Shiao Xie , Hongyi Wang , Ziwei Niu , Hao Sun , Shuyi Ouyang , Yen-Wei Chen , Lanfen Lin

Segmentation is a fundamental problem in surgical scene analysis using artificial intelligence. However, the inherent data scarcity in this domain makes it challenging to adapt traditional segmentation techniques for this task. To tackle…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Jay N. Paranjape , Nithin Gopalakrishnan Nair , Shameema Sikder , S. Swaroop Vedula , Vishal M. Patel

The Segment Anything Model (SAM) family has become a widely adopted vision foundation model, but its ability to control segmentation granularity remains limited. Users often need to refine results manually - by adding more prompts or…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Junwei Yu , Trevor Darrell , XuDong Wang

Although existing semantic segmentation approaches achieve impressive results, they still struggle to update their models incrementally as new categories are uncovered. Furthermore, pixel-by-pixel annotations are expensive and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Fabio Cermelli , Dario Fontanel , Antonio Tavera , Marco Ciccone , Barbara Caputo

The crux of semi-supervised semantic segmentation is to assign adequate pseudo-labels to the pixels of unlabeled images. A common practice is to select the highly confident predictions as the pseudo ground-truth, but it leads to a problem…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Yuchao Wang , Haochen Wang , Yujun Shen , Jingjing Fei , Wei Li , Guoqiang Jin , Liwei Wu , Rui Zhao , Xinyi Le

Accurate and efficient catheter segmentation in 3D ultrasound (US) is essential for cardiac intervention. Currently, the state-of-the-art segmentation algorithms are based on convolutional neural networks (CNNs), which achieved remarkable…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Hongxu Yang , Caifeng Shan , Alexander F. Kolen , Peter H. N. de With

Weakly-supervised semantic segmentation (WSSS) with image-level labels has been widely studied to relieve the annotation burden of the traditional segmentation task. In this paper, we show that existing fully-annotated base categories can…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Siyuan Zhou , Li Niu , Jianlou Si , Chen Qian , Liqing Zhang

As research interests in medical image analysis become increasingly fine-grained, the cost for extensive annotation also rises. One feasible way to reduce the cost is to annotate with coarse-grained superclass labels while using limited…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Linrui Dai , Wenhui Lei , Xiaofan Zhang

The emerging scale segmentation model, Segment Anything (SAM), exhibits impressive capabilities in zero-shot segmentation for natural images. However, when applied to medical images, SAM suffers from noticeable performance drop. To make SAM…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Xinrong Hu , Xiaowei Xu , Yiyu Shi

We propose a weakly-supervised framework for the semantic segmentation of circular-scan synthetic-aperture-sonar (CSAS) imagery. The first part of our framework is trained in a supervised manner, on image-level labels, to uncover a set of…

The Segment Anything Model (SAM) is a powerful foundation model that has revolutionised image segmentation. To apply SAM to surgical instrument segmentation, a common approach is to locate precise points or boxes of instruments and then use…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Wenxi Yue , Jing Zhang , Kun Hu , Yong Xia , Jiebo Luo , Zhiyong Wang