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Weakly supervised semantic segmentation is typically inspired by class activation maps, which serve as pseudo masks with class-discriminative regions highlighted. Although tremendous efforts have been made to recall precise and complete…

计算机视觉与模式识别 · 计算机科学 2023-03-15 Zesen Cheng , Pengchong Qiao , Kehan Li , Siheng Li , Pengxu Wei , Xiangyang Ji , Li Yuan , Chang Liu , Jie Chen

This paper proposes a novel weakly-supervised semantic segmentation method using image-level label only. The class-specific activation maps from the well-trained classifiers are used as cues to train a segmentation network. The well-known…

计算机视觉与模式识别 · 计算机科学 2019-06-17 Ting Sun , Lei Tai , Zhihan Gao , Ming Liu , Dit-Yan Yeung

Query-based video grounding is an important yet challenging task in video understanding, which aims to localize the target segment in an untrimmed video according to a sentence query. Most previous works achieve significant progress by…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Shentong Mo , Daizong Liu , Wei Hu

Weakly supervised instance segmentation using only bounding box annotations has recently attracted much research attention. Most of the current efforts leverage low-level image features as extra supervision without explicitly exploiting the…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Ruihuang Li , Chenhang He , Yabin Zhang , Shuai Li , Liyi Chen , Lei Zhang

We focus on the weakly-supervised audio-visual video parsing task (AVVP), which aims to identify and locate all the events in audio/visual modalities. Previous works only concentrate on video-level overall label denoising across modalities,…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Yingying Fan , Yu Wu , Bo Du , Yutian Lin

For many prediction tasks, stakeholders desire not only predictions but also supporting evidence that a human can use to verify its correctness. However, in practice, additional annotations marking supporting evidence may only be available…

计算与语言 · 计算机科学 2020-11-04 Danish Pruthi , Bhuwan Dhingra , Graham Neubig , Zachary C. Lipton

High-quality labels are often very scarce, whereas unlabeled data with inferred weak labels occurs more naturally. In many cases, these weak labels dictate the frequency of each respective class over a set of instances. In this paper, we…

机器学习 · 计算机科学 2023-11-27 Vinay Shukla , Zhe Zeng , Kareem Ahmed , Guy Van den Broeck

Deep neural networks have enabled major progresses in semantic segmentation. However, even the most advanced neural architectures suffer from important limitations. First, they are vulnerable to catastrophic forgetting, i.e. they perform…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Fabio Cermelli , Massimiliano Mancini , Samuel Rota Buló , Elisa Ricci , Barbara Caputo

To create a large amount of training labels for machine learning models effectively and efficiently, researchers have turned to Weak Supervision (WS), which uses programmatic labeling sources rather than manual annotation. Existing works of…

机器学习 · 计算机科学 2022-08-04 Jieyu Zhang , Yujing Wang , Yaming Yang , Yang Luo , Alexander Ratner

We propose to model complex visual scenes using a non-parametric Bayesian model learned from weakly labelled images abundant on media sharing sites such as Flickr. Given weak image-level annotations of objects and attributes without…

计算机视觉与模式识别 · 计算机科学 2017-08-09 Zhiyuan Shi , Yongxin Yang , Timothy M. Hospedales , Tao Xiang

To efficiently establish training databases for machine learning methods, collaborative and crowdsourcing platforms have been investigated to collectively tackle the annotation effort. However, when this concept is ported to the medical…

计算机视觉与模式识别 · 计算机科学 2017-08-22 Martin Rajchl , Lisa M. Koch , Christian Ledig , Jonathan Passerat-Palmbach , Kazunari Misawa , Kensaku Mori , Daniel Rueckert

Automatic annotation of images with descriptive words is a challenging problem with vast applications in the areas of image search and retrieval. This problem can be viewed as a label-assignment problem by a classifier dealing with a very…

计算机视觉与模式识别 · 计算机科学 2017-05-09 Amara Tariq , Hassan Foroosh

We address the weakly supervised video highlight detection problem for learning to detect segments that are more attractive in training videos given their video event label but without expensive supervision of manually annotating highlight…

计算机视觉与模式识别 · 计算机科学 2020-08-14 Fa-Ting Hong , Xuanteng Huang , Wei-Hong Li , Wei-Shi Zheng

Weakly supervised object detection (WSOD) using only image-level annotations has attracted growing attention over the past few years. Existing approaches using multiple instance learning easily fall into local optima, because such mechanism…

计算机视觉与模式识别 · 计算机科学 2020-02-05 Chenhao Lin , Siwen Wang , Dongqi Xu , Yu Lu , Wayne Zhang

Recently, researches related to unsupervised disentanglement learning with deep generative models have gained substantial popularity. However, without introducing supervision, there is no guarantee that the factors of interest can be…

机器学习 · 计算机科学 2020-03-13 Junxiang Chen , Kayhan Batmanghelich

It is laborious to manually label point cloud data for training high-quality 3D object detectors. This work proposes a weakly supervised approach for 3D object detection, only requiring a small set of weakly annotated scenes, associated…

计算机视觉与模式识别 · 计算机科学 2020-07-24 Qinghao Meng , Wenguan Wang , Tianfei Zhou , Jianbing Shen , Luc Van Gool , Dengxin Dai

Weakly-supervised instance segmentation aims to detect and segment object instances precisely, given imagelevel labels only. Unlike previous methods which are composed of multiple offline stages, we propose Sequential Label Propagation and…

计算机视觉与模式识别 · 计算机科学 2020-04-27 Weifeng Ge , Sheng Guo , Weilin Huang , Matthew R. Scott

Training convolutional networks for semantic segmentation with strong (per-pixel) and weak (per-bounding-box) supervision requires a large amount of weakly labeled data. We propose two methods for selecting the most relevant data with weak…

计算机视觉与模式识别 · 计算机科学 2019-07-17 Panagiotis Meletis , Rob Romijnders , Gijs Dubbelman

Contrastive learning predicts whether two images belong to the same category by training a model to make their feature representations as close or as far away as possible. In this paper, we rethink how to mine samples in contrastive…

计算机视觉与模式识别 · 计算机科学 2023-11-02 Hengkui Dong , Xianzhong Long , Yun Li

Video captioning has shown impressive progress in recent years. One key reason of the performance improvements made by existing methods lie in massive paired video-sentence data, but collecting such strong annotation, i.e., high-quality…

计算机视觉与模式识别 · 计算机科学 2020-09-03 Jingyi Hou , Yunde Jia , Xinxiao wu , Yayun Qi