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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

The current state-of-the-art methods for unsupervised video object segmentation (UVOS) require extensive training on video datasets with mask annotations, limiting their effectiveness in handling challenging scenarios. However, the Segment…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Zhenghao Zhang , Shengfan Zhang , Zhichao Wei , Zuozhuo Dai , Siyu Zhu

Weakly supervised video anomaly detection (WS-VAD) is a challenging problem that aims to learn VAD models only with video-level annotations. In this work, we propose a Long-Short Temporal Co-teaching (LSTC) method to address the WS-VAD…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Shengyang Sun , Xiaojin Gong

Conventional few-shot object segmentation methods learn object segmentation from a few labelled support images with strongly labelled segmentation masks. Recent work has shown to perform on par with weaker levels of supervision in terms of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Mennatullah Siam , Naren Doraiswamy , Boris N. Oreshkin , Hengshuai Yao , Martin Jagersand

In this work we propose a capsule-based approach for semi-supervised video object segmentation. Current video object segmentation methods are frame-based and often require optical flow to capture temporal consistency across frames which can…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Kevin Duarte , Yogesh S Rawat , Mubarak Shah

In this paper, we propose a simple yet effective approach for self-supervised video object segmentation (VOS). Our key insight is that the inherent structural dependencies present in DINO-pretrained Transformers can be leveraged to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Shuangrui Ding , Rui Qian , Haohang Xu , Dahua Lin , Hongkai Xiong

Unsupervised Video Object Segmentation (VOS) aims at identifying the contours of primary foreground objects in videos without any prior knowledge. However, previous methods do not fully use spatial-temporal context and fail to tackle this…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Ping Li , Yu Zhang , Li Yuan , Huaxin Xiao , Binbin Lin , Xianghua Xu

As moving objects always draw more attention of human eyes, the temporal motive information is always exploited complementarily with spatial information to detect salient objects in videos. Although efficient tools such as optical flow have…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Jing Liu , Jiaxiang Wang , Weikang Wang , Yuting Su

Enabling computational systems with the ability to localize actions in video-based content has manifold applications. Traditionally, such a problem is approached in a fully-supervised setting where video-clips with complete frame-by-frame…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Kurt Degiorgio , Fabio Cuzzolin

Weakly supervised object detection (WSOD), which is an effective way to train an object detection model using only image-level annotations, has attracted considerable attention from researchers. However, most of the existing methods, which…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Ze Chen , Zhihang Fu , Jianqiang Huang , Mingyuan Tao , Rongxin Jiang , Xiang Tian , Yaowu Chen , Xian-sheng Hua

Purpose: Real-time surgical tool tracking is a core component of the future intelligent operating room (OR), because it is highly instrumental to analyze and understand the surgical activities. Current methods for surgical tool tracking in…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Chinedu Innocent Nwoye , Didier Mutter , Jacques Marescaux , Nicolas Padoy

Disentangled representations support a range of downstream tasks including causal reasoning, generative modeling, and fair machine learning. Unfortunately, disentanglement has been shown to be impossible without the incorporation of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Matthew J. Vowels , Necati Cihan Camgoz , Richard Bowden

Video object segmentation (VOS) -- predicting pixel-level regions for objects within each frame of a video -- is particularly challenging in agricultural scenarios, where videos of crops include hundreds of small, dense, and occluded…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Keyhan Najafian , Farhad Maleki , Lingling Jin , Ian Stavness

We target at the task of weakly-supervised video object grounding (WSVOG), where only video-sentence annotations are available during model learning. It aims to localize objects described in the sentence to visual regions in the video,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Wei Wang , Junyu Gao , Changsheng Xu

Amodal perception requires inferring the full shape of an object that is partially occluded. This task is particularly challenging on two levels: (1) it requires more information than what is contained in the instant retina or imaging…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Jian Yao , Yuxin Hong , Chiyu Wang , Tianjun Xiao , Tong He , Francesco Locatello , David Wipf , Yanwei Fu , Zheng Zhang

Weakly supervised instance segmentation has gained popularity because it reduces high annotation cost of pixel-level masks required for model training. Recent approaches for weakly supervised instance segmentation detect and segment objects…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Jun Ikeda , Junichiro Mori

Video object segmentation is crucial for the efficient analysis of complex medical video data, yet it faces significant challenges in data availability and annotation. We introduce the task of one-shot medical video object segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yaxiong Chen , Junjian Hu , Chunlei Li , Zixuan Zheng , Jingliang Hu , Yilei Shi , Shengwu Xiong , Xiao Xiang Zhu , Lichao Mou

Referring video object segmentation (RVOS) is a task that aims to segment the target object in all video frames based on a sentence describing the object. Although existing RVOS methods have achieved significant performance, they depend on…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Wangbo Zhao , Kepan Nan , Songyang Zhang , Kai Chen , Dahua Lin , Yang You

Learning long-term spatial-temporal features are critical for many video analysis tasks. However, existing video segmentation methods predominantly rely on static image segmentation techniques, and methods capturing temporal dependency for…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Ning Xu , Linjie Yang , Yuchen Fan , Jianchao Yang , Dingcheng Yue , Yuchen Liang , Brian Price , Scott Cohen , Thomas Huang

Learning long-term spatial-temporal features are critical for many video analysis tasks. However, existing video segmentation methods predominantly rely on static image segmentation techniques, and methods capturing temporal dependency for…

Computer Vision and Pattern Recognition · Computer Science 2018-09-11 Ning Xu , Linjie Yang , Yuchen Fan , Dingcheng Yue , Yuchen Liang , Jianchao Yang , Thomas Huang