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Weakly-Supervised Semantic Segmentation (WSSS) methods with image-level labels generally train a classification network to generate the Class Activation Maps (CAMs) as the initial coarse segmentation labels. However, current WSSS methods…

Computer Vision and Pattern Recognition · Computer Science 2022-02-11 Lixiang Ru , Bo Du , Yibing Zhan , Chen Wu

The status quo approach to training object detectors requires expensive bounding box annotations. Our framework takes a markedly different direction: we transfer tracked object boxes from weakly-labeled videos to weakly-labeled images to…

Computer Vision and Pattern Recognition · Computer Science 2016-04-21 Krishna Kumar Singh , Fanyi Xiao , Yong Jae Lee

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

Current 3D segmentation methods heavily rely on large-scale point-cloud datasets, which are notoriously laborious to annotate. Few attempts have been made to circumvent the need for dense per-point annotations. In this work, we look at…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Julian Chibane , Francis Engelmann , Tuan Anh Tran , Gerard Pons-Moll

In surgical procedures, correct instrument counting is essential. Instance segmentation is a location method that locates not only an object's bounding box but also each pixel's specific details. However, obtaining mask-level annotations is…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Zhen Sun , Huan Xu , Jinlin Wu , Zhen Chen , Zhen Lei , Hongbin Liu

This work addresses the task of weakly-supervised object localization. The goal is to learn object localization using only image-level class labels, which are much easier to obtain compared to bounding box annotations. This task is…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 David Kim , Sinhae Cha , Byeongkeun Kang

Based on the framework of multiple instance learning (MIL), tremendous works have promoted the advances of weakly supervised object detection (WSOD). However, most MIL-based methods tend to localize instances to their discriminative parts…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Ze Chen , Zhihang Fu , Rongxin Jiang , Yaowu Chen , Xian-sheng Hua

The scarcity of labeled data often limits the application of supervised deep learning techniques for medical image segmentation. This has motivated the development of semi-supervised techniques that learn from a mixture of labeled and…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Gerda Bortsova , Florian Dubost , Laurens Hogeweg , Ioannis Katramados , Marleen de Bruijne

Weakly Supervised Object Detection (WSOD), using only image-level annotations to train object detectors, is of growing importance in object recognition. In this paper, we propose a novel deep network for WSOD. Unlike previous networks that…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Peng Tang , Xinggang Wang , Song Bai , Wei Shen , Xiang Bai , Wenyu Liu , Alan Yuille

Weakly-supervised semantic segmentation (WSSS) performs pixel-wise classification given only image-level labels for training. Despite the difficulty of this task, the research community has achieved promising results over the last five…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Cheolhyun Mun , Sanghuk Lee , Youngjung Uh , Junsuk Choe , Hyeran Byun

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

Training object detectors with only image-level annotations is very challenging because the target objects are often surrounded by a large number of background clutters. Many existing approaches tackle this problem through object proposal…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Wenhui Jiang , Thuyen Ngo , B. S. Manjunath , Zhicheng Zhao , Fei Su

Accurate segmentation of nodules in both 2D breast ultrasound (BUS) and 3D automated breast ultrasound (ABUS) is crucial for clinical diagnosis and treatment planning. Therefore, developing an automated system for nodule segmentation can…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Yuhao Huang , Ao Chang , Haoran Dou , Xing Tao , Xinrui Zhou , Yan Cao , Ruobing Huang , Alejandro F Frangi , Lingyun Bao , Xin Yang , Dong Ni

Weakly-supervised action segmentation is a task of learning to partition a long video into several action segments, where training videos are only accompanied by transcripts (ordered list of actions). Most of existing methods need to infer…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Angchi Xu , Wei-Shi Zheng

Object category localization is a challenging problem in computer vision. Standard supervised training requires bounding box annotations of object instances. This time-consuming annotation process is sidestepped in weakly supervised…

Computer Vision and Pattern Recognition · Computer Science 2016-05-30 Ramazan Gokberk Cinbis , Jakob Verbeek , Cordelia Schmid

Human skin segmentation is a crucial task in computer vision and biometric systems, yet it poses several challenges such as variability in skin color, pose, and illumination. This paper presents a robust data-driven skin segmentation method…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Kooshan Hashemifard , Pau Climent-Perez , Francisco Florez-Revuelta

Automatic medical image segmentation is a fundamental step in computer-aided diagnosis, yet fully supervised approaches demand extensive pixel-level annotations that are costly and time-consuming. To alleviate this burden, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Lei Shi , Gang Li , Junxing Zhang

Deep Convolutional Neural Networks have proven effective in solving the task of semantic segmentation. However, their efficiency heavily relies on the pixel-level annotations that are expensive to get and often require domain expertise,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Ostap Viniavskyi , Mariia Dobko , Oles Dobosevych

Weakly supervised instance labeling using only image-level labels, in lieu of expensive fine-grained pixel annotations, is crucial in several applications including medical image analysis. In contrast to conventional instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Jayaraman J. Thiagarajan , Satyananda Kashyap , Alexandros Karagyris

Recent advancements in computational pathology and artificial intelligence have significantly improved whole slide image (WSI) classification. However, the gigapixel resolution of WSIs and the scarcity of manual annotations present…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Mingxi Ouyang , Yuqiu Fu , Renao Yan , ShanShan Shi , Xitong Ling , Lianghui Zhu , Yonghong He , Tian Guan