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Temporal action localization presents a trade-off between test performance and annotation-time cost. Fully supervised methods achieve good performance with time-consuming boundary annotations. Weakly supervised methods with cheaper…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Xinpeng Ding , Nannan Wang , Xinbo Gao , Jie Li , Xiaoyu Wang , Tongliang Liu

Medical image segmentation has witnessed significant advancements with the emergence of deep learning. However, the reliance of most neural network models on a substantial amount of annotated data remains a challenge for medical image…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Xiaoxiao Wu , Xiaowei Chen , Zhenguo Gao , Shulei Qu , Yuanyuan Qiu

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

Conventional training of a deep CNN based object detector demands a large number of bounding box annotations, which may be unavailable for rare categories. In this work we develop a few-shot object detector that can learn to detect novel…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Bingyi Kang , Zhuang Liu , Xin Wang , Fisher Yu , Jiashi Feng , Trevor Darrell

Weakly-Supervised Concealed Object Segmentation (WSCOS) aims to segment objects well blended with surrounding environments using sparsely-annotated data for model training. It remains a challenging task since (1) it is hard to distinguish…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Chunming He , Kai Li , Yachao Zhang , Guoxia Xu , Longxiang Tang , Yulun Zhang , Zhenhua Guo , Xiu Li

Significant performance improvement has been achieved for fully-supervised video salient object detection with the pixel-wise labeled training datasets, which are time-consuming and expensive to obtain. To relieve the burden of data…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Wangbo Zhao , Jing Zhang , Long Li , Nick Barnes , Nian Liu , Junwei Han

Advancements in cross-modal feature extraction and integration have significantly enhanced performance in few-shot learning tasks. However, current multi-modal object detection (MM-OD) methods often experience notable performance…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Zeyu Shangguan , Daniel Seita , Mohammad Rostami

Few-shot semantic segmentation (FSS) aims to segment objects of unseen classes in query images with only a few annotated support images. Existing FSS algorithms typically focus on mining category representations from the single-view support…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Qinglong Cao , Yuntian Chen , Chao Ma , Xiaokang Yang

Supervised keypoint localization methods rely on large manually labeled image datasets, where objects can deform, articulate, or occlude. However, creating such large keypoint labels is time-consuming and costly, and is often error-prone…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Xingzhe He , Gaurav Bharaj , David Ferman , Helge Rhodin , Pablo Garrido

Existing few-shot segmentation (FSS) only considers learning support-query correlation and segmenting unseen categories under the precise pixel masks. However, the cost of a large number of pixel masks during training is expensive. This…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Xinyang Huang , Chuang Zhu , Kebin Liu , Ruiying Ren , Shengjie Liu

Few-shot learning focuses on learning a new visual concept with very limited labelled examples. A successful approach to tackle this problem is to compare the similarity between examples in a learned metric space based on convolutional…

Machine Learning · Computer Science 2024-02-06 Heda Song , Mercedes Torres Torres , Ender Özcan , Isaac Triguero

Zero-shot learning for visual recognition, e.g., object and action recognition, has recently attracted a lot of attention. However, it still remains challenging in bridging the semantic gap between visual features and their underlying…

Computer Vision and Pattern Recognition · Computer Science 2017-06-05 Qian Wang , Ke Chen

Semantic segmentation tasks based on weakly supervised condition have been put forward to achieve a lightweight labeling process. For simple images that only include a few categories, researches based on image-level annotations have…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Xi Li , Huimin Ma , Sheng Yi , Yanxian Chen

Few-shot segmentation remains challenging due to the limitations of its labeling information for unseen classes. Most previous approaches rely on extracting high-level feature maps from the frozen visual encoder to compute the pixel-wise…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Jin Wang , Bingfeng Zhang , Jian Pang , Honglong Chen , Weifeng Liu

Methods for object detection and segmentation rely on large scale instance-level annotations for training, which are difficult and time-consuming to collect. Efforts to alleviate this look at varying degrees and quality of supervision.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Siddhesh Khandelwal , Raghav Goyal , Leonid Sigal

Recent years have seen a rapid growth in new approaches improving the accuracy of semantic segmentation in a weakly supervised setting, i.e. with only image-level labels available for training. However, this has come at the cost of…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Nikita Araslanov , Stefan Roth

Few-shot semantic segmentation (FSS) aims to form class-agnostic models segmenting unseen classes with only a handful of annotations. Previous methods limited to the semantic feature and prototype representation suffer from coarse…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Bohao Peng , Zhuotao Tian , Xiaoyang Wu , Chengyao Wang , Shu Liu , Jingyong Su , Jiaya Jia

Deep neural network-based semantic segmentation generally requires large-scale cost extensive annotations for training to obtain better performance. To avoid pixel-wise segmentation annotations which are needed for most methods, recently…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 Longlong Jing , Yucheng Chen , Yingli Tian

Meta-learning aims to uniformly sample homogeneous support-query pairs, characterized by the same categories and similar attributes, and extract useful inductive biases through identical network architectures. However, this identical…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Jiaqi Ma , Guo-Sen Xie , Fang Zhao , Zechao Li

The objective of this paper is few-shot object detection (FSOD) -- the task of expanding an object detector for a new category given only a few instances for training. We introduce a simple pseudo-labelling method to source high-quality…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Prannay Kaul , Weidi Xie , Andrew Zisserman