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The lack of fine-grained 3D shape segmentation data is the main obstacle to developing learning-based 3D segmentation techniques. We propose an effective semi-supervised method for learning 3D segmentations from a few labeled 3D shapes and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Chun-Yu Sun , Yu-Qi Yang , Hao-Xiang Guo , Peng-Shuai Wang , Xin Tong , Yang Liu , Heung-Yeung Shum

Teeth segmentation is an essential task in dental image analysis for accurate diagnosis and treatment planning. While supervised deep learning methods can be utilized for teeth segmentation, they often require extensive manual annotation of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Tomáš Kunzo , Viktor Kocur , Lukáš Gajdošech , Martin Madaras

Accurate segmentation of Optical Coherence Tomography (OCT) images is crucial for diagnosing and monitoring retinal diseases. However, the labor-intensive nature of pixel-level annotation limits the scalability of supervised learning for…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Jiaqi Yang , Nitish Mehta , Xiaoling Hu , Chao Chen , Chia-Ling Tsai

Training neural networks using limited annotations is an important problem in the medical domain. Deep Neural Networks (DNNs) typically require large, annotated datasets to achieve acceptable performance which, in the medical domain, are…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Bethany H. Thompson , Gaetano Di Caterina , Jeremy P. Voisey

While there are novel point cloud semantic segmentation schemes that continuously surpass state-of-the-art results, the success of learning an effective model usually rely on the availability of abundant labeled data. However, data…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Puzuo Wang , Wei Yao

Weakly supervised LiDAR semantic segmentation has made significant strides with limited labeled data. However, most existing methods focus on the network training under weak supervision, while efficient annotation strategies remain largely…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Yilong Chen , Zongyi Xu , xiaoshui Huang , Ruicheng Zhang , Xinqi Jiang , Xinbo Gao

Two major causes of death in the United States and worldwide are stroke and myocardial infarction. The underlying cause of both is thrombi released from ruptured or eroded unstable atherosclerotic plaques that occlude vessels in the heart…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Nazanin Moradinasab , Yash Sharma , Laura S. Shankman , Gary K. Owens , Donald E. Brown

Collecting large-scale medical datasets with fine-grained annotations is time-consuming and requires experts. For this reason, weakly supervised learning aims at optimising machine learning models using weaker forms of annotations, such as…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Gabriele Valvano , Andrea Leo , Sotirios A. Tsaftaris

3D point cloud semantic segmentation has a wide range of applications. Recently, weakly supervised point cloud segmentation methods have been proposed, aiming to alleviate the expensive and laborious manual annotation process by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Xiawei Li , Qingyuan Xu , Jing Zhang , Tianyi Zhang , Qian Yu , Lu Sheng , Dong Xu

This work presents a novel deep learning framework for segmenting cerebral vasculature in hyperspectral brain images. We address the critical challenge of severe label scarcity, which impedes conventional supervised training. Our approach…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Tim Mach , Daniel Rueckert , Alex Berger , Laurin Lux , Ivan Ezhov

Intra-operative ultrasound is an increasingly important imaging modality in neurosurgery. However, manual interaction with imaging data during the procedures, for example to select landmarks or perform segmentation, is difficult and can be…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Julia Rackerseder , Rüdiger Göbl , Nassir Navab , Christoph Hennersperger

We propose a novel algorithm for weakly supervised semantic segmentation based on image-level class labels only. In weakly supervised setting, it is commonly observed that trained model overly focuses on discriminative parts rather than the…

Computer Vision and Pattern Recognition · Computer Science 2018-01-09 Seunghoon Hong , Donghun Yeo , Suha Kwak , Honglak Lee , Bohyung Han

Automated nodule segmentation is essential for computer-assisted diagnosis in ultrasound images. Nevertheless, most existing methods depend on precise pixel-level annotations by medical professionals, a process that is both costly and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Xingyue Zhao , Peiqi Li , Xiangde Luo , Meng Yang , Shi Chang , Zhongyu Li

Most of the state-of-the-art semantic segmentation reported in recent years is based on fully supervised deep learning in the medical domain. How?ever, the high-quality annotated datasets require intense labor and domain knowledge,…

Image and Video Processing · Electrical Eng. & Systems 2022-04-25 Pingping Dai , Haiming Zhu , Shuang Ge , Ruihan Zhang , Xiang Qian , Xi Li , Kehong Yuan

3D instance segmentation methods often require fully-annotated dense labels for training, which are costly to obtain. In this paper, we present ClickSeg, a novel click-level weakly supervised 3D instance segmentation method that requires…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Leyao Liu , Tao Kong , Minzhao Zhu , Jiashuo Fan , Lu Fang

Producing densely annotated data is a difficult and tedious task for medical imaging applications. To address this problem, we propose a novel approach to generate supervision for semi-supervised semantic segmentation. We argue that…

Image and Video Processing · Electrical Eng. & Systems 2022-10-10 Constantin Seibold , Simon Reiß , Jens Kleesiek , Rainer Stiefelhagen

Both limited annotation and domain shift are prevalent challenges in medical image segmentation. Traditional semi-supervised segmentation and unsupervised domain adaptation methods address one of these issues separately. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-08-19 Qinghe Ma , Jian Zhang , Lei Qi , Qian Yu , Yinghuan Shi , Yang Gao

Weakly supervised 3D instance segmentation is essential for 3D scene understanding, especially as the growing scale of data and high annotation costs associated with fully supervised approaches. Existing methods primarily rely on two forms…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Xuexun Liu , Xiaoxu Xu , Qiudan Zhang , Lin Ma , Xu Wang

In this paper, we propose a new approach to applying point-level annotations for weakly-supervised panoptic segmentation. Instead of the dense pixel-level labels used by fully supervised methods, point-level labels only provide a single…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Junsong Fan , Zhaoxiang Zhang , Tieniu Tan

Liver-vessel segmentation is an essential task in the pre-operative planning of liver resection. State-of-the-art 2D or 3D convolution-based methods focusing on liver vessel segmentation on 2D CT cross-sectional views, which do not take…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Xiaotong Zhang , Alexander Broersen , Gonnie CM van Erp , Silvia L. Pintea , Jouke Dijkstra
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