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Although existing semi-supervised learning models achieve remarkable success in learning with unannotated in-distribution data, they mostly fail to learn on unlabeled data sampled from novel semantic classes due to their closed-set…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Sheng Zhang , Salman Khan , Zhiqiang Shen , Muzammal Naseer , Guangyi Chen , Fahad Khan

Contrastive self-supervised learning has outperformed supervised pretraining on many downstream tasks like segmentation and object detection. However, current methods are still primarily applied to curated datasets like ImageNet. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Luc Van Gool

Understanding human behavior is an important problem in the pursuit of visual intelligence. A challenge in this endeavor is the extensive and costly effort required to accurately label action segments. To address this issue, we consider…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Seth Z. Zhao , Reza Ghoddoosian , Isht Dwivedi , Nakul Agarwal , Behzad Dariush

Medical image segmentation is a critical yet challenging task, primarily due to the difficulty of obtaining extensive datasets of high-quality, expert-annotated images. Contrastive learning presents a potential but still problematic…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Shuang Zeng , Lei Zhu , Xinliang Zhang , Hangzhou He , Yanye Lu

Weakly-supervised object localization methods tend to fail for object classes that consistently co-occur with the same background elements, e.g. trains on tracks. We propose a method to overcome these failures by adding a very small amount…

Computer Vision and Pattern Recognition · Computer Science 2016-05-19 Alexander Kolesnikov , Christoph H. Lampert

In-context learning (ICL) enables large language models to perform few-shot learning by conditioning on labeled examples in the prompt. Despite its flexibility, ICL suffers from instability -- especially as prompt length increases with more…

Computation and Language · Computer Science 2025-10-27 Josip Jukić , Jan Šnajder

Weakly supervised object localization (WSOL) aims to localize objects by only utilizing image-level labels. Class activation maps (CAMs) are the commonly used features to achieve WSOL. However, previous CAM-based methods did not take full…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Jun Wei , Qin Wang , Zhen Li , Sheng Wang , S. Kevin Zhou , Shuguang Cui

Existing deep trackers are typically trained with largescale video frames with annotated bounding boxes. However, these bounding boxes are expensive and time-consuming to annotate, in particular for large scale datasets. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Qiangqiang Wu , Antoni B. Chan

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…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Chenhao Lin , Siwen Wang , Dongqi Xu , Yu Lu , Wayne Zhang

We present a self-supervised learning (SSL) method suitable for semi-global tasks such as object detection and semantic segmentation. We enforce local consistency between self-learned features, representing corresponding image locations of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Ashraful Islam , Ben Lundell , Harpreet Sawhney , Sudipta Sinha , Peter Morales , Richard J. Radke

A consistent trend throughout the research of oriented object detection has been the pursuit of maintaining comparable performance with fewer and weaker annotations. This is particularly crucial in the remote sensing domain, where the dense…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Wei Zhang , Xiang Liu , Ningjing Liu , Mingxin Liu , Wei Liao , Chunyan Xu , Xue Yang

Pre-trained vision-language models learn massive data to model unified representations of images and natural languages, which can be widely applied to downstream machine learning tasks. In addition to zero-shot inference, in order to better…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Qian-Wei Wang , Yuqiu Xie , Letian Zhang , Zimo Liu , Shu-Tao Xia

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

Large amounts of labeled training data are one of the main contributors to the great success that deep models have achieved in the past. Label acquisition for tasks other than benchmarks can pose a challenge due to requirements of both…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Clemens-Alexander Brust , Christoph Käding , Joachim Denzler

We describe a latent approach that learns to detect actions in long sequences given training videos with only whole-video class labels. Our approach makes use of two innovations to attention-modeling in weakly-supervised learning. First,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Phuc Xuan Nguyen , Deva Ramanan , Charless C. Fowlkes

Existing methods for large-scale point cloud semantic segmentation require expensive, tedious and error-prone manual point-wise annotations. Intuitively, weakly supervised training is a direct solution to reduce the cost of labeling.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Yachao Zhang , Zonghao Li , Yuan Xie , Yanyun Qu , Cuihua Li , Tao Mei

In this paper, we propose a novel Self-Supervised-Learning scheme to train rhythm analysis systems and instantiate it for few-shot beat tracking. Taking inspiration from the Contrastive Predictive Coding paradigm, we propose to train a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-08 Antonin Gagnere , Geoffroy Peeters , Slim Essid

Weakly supervised object detection is a challenging task when provided with image category supervision but required to learn, at the same time, object locations and object detectors. The inconsistency between the weak supervision and…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Fang Wan , Pengxu Wei , Zhenjun Han , Jianbin Jiao , Qixiang Ye

Weakly Supervised Object Localization (WSOL) aims to localize objects with image-level supervision. Existing works mainly rely on Class Activation Mapping (CAM) derived from a classification model. However, CAM-based methods usually focus…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng , Rui-Wei Zhao , Tao Zhang , Xuequan Lu , Shang Gao

Can we detect common objects in a variety of image domains without instance-level annotations? In this paper, we present a framework for a novel task, cross-domain weakly supervised object detection, which addresses this question. For this…

Computer Vision and Pattern Recognition · Computer Science 2018-04-02 Naoto Inoue , Ryosuke Furuta , Toshihiko Yamasaki , Kiyoharu Aizawa
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