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Related papers: CoTracker3: Simpler and Better Point Tracking by P…

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In many critical computer vision scenarios unlabeled data is plentiful, but labels are scarce and difficult to obtain. As a result, semi-supervised learning which leverages unlabeled data to boost the performance of supervised classifiers…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Jay C. Rothenberger , Dimitrios I. Diochnos

Deep learning perception models require a massive amount of labeled training data to achieve good performance. While unlabeled data is easy to acquire, the cost of labeling is prohibitive and could create a tremendous burden on companies or…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Xinnan Du , William Zhang , Jose M. Alvarez

Point tracking models often struggle to generalize to real-world videos because large-scale training data is predominantly synthetic$\unicode{x2014}$the only source currently feasible to produce at scale. Collecting real-world annotations,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Inès Hyeonsu Kim , Seokju Cho , Jahyeok Koo , Junghyun Park , Jiahui Huang , Honglak Lee , Joon-Young Lee , Seungryong Kim

Video Instance Segmentation (VIS) faces significant annotation challenges due to its dual requirements of pixel-level masks and temporal consistency labels. While recent unsupervised methods like VideoCutLER eliminate optical flow…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Kaixuan Lu , Mehmet Onurcan Kaya , Dim P. Papadopoulos

Accurate player and ball detection has become increasingly important in recent years for sport analytics. As most state-of-the-art methods rely on training deep learning networks in a supervised fashion, they require huge amounts of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Renaud Vandeghen , Anthony Cioppa , Marc Van Droogenbroeck

In response to the growing demand for 3D object detection in applications such as autonomous driving, robotics, and augmented reality, this work focuses on the evaluation of semi-supervised learning approaches for point cloud data. The…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Maksim Golyadkin , Alexander Gambashidze , Ildar Nurgaliev , Ilya Makarov

Automatically estimating animal poses from videos is important for studying animal behaviors. Existing methods do not perform reliably since they are trained on datasets that are not comprehensive enough to capture all necessary animal…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Zhuoyang Pan , Boxiao Pan , Guandao Yang , Adam W. Harley , Leonidas Guibas

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

Object-to-camera motion produces a variety of apparent motion patterns that significantly affect performance of short-term visual trackers. Despite being crucial for designing robust trackers, their influence is poorly explored in standard…

Computer Vision and Pattern Recognition · Computer Science 2017-03-28 Luka Čehovin Zajc , Alan Lukežič , Aleš Leonardis , Matej Kristan

3D object trackers usually require training on large amounts of annotated data that is expensive and time-consuming to collect. Instead, we propose leveraging vast unlabeled datasets by self-supervised metric learning of 3D object trackers,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Jianren Wang , Siddharth Ancha , Yi-Ting Chen , David Held

Training with sparse annotations is known to reduce the performance of object detectors. Previous methods have focused on proxies for missing ground truth annotations in the form of pseudo-labels for unlabeled boxes. We observe that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Saksham Suri , Sai Saketh Rambhatla , Rama Chellappa , Abhinav Shrivastava

We propose a novel scene flow method that captures 3D motions from point clouds without relying on ground-truth scene flow annotations. Due to the irregularity and sparsity of point clouds, it is expensive and time-consuming to acquire…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Bing Li , Cheng Zheng , Guohao Li , Bernard Ghanem

Annotating object ground truth in videos is vital for several downstream tasks in robot perception and machine learning, such as for evaluating the performance of an object tracker or training an image-based object detector. The accuracy of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Eric Price , Aamir Ahmad

Recent interest in self-supervised dense tracking has yielded rapid progress, but performance still remains far from supervised methods. We propose a dense tracking model trained on videos without any annotations that surpasses previous…

Computer Vision and Pattern Recognition · Computer Science 2020-02-27 Zihang Lai , Erika Lu , Weidi Xie

Learning robust contextual knowledge from unlabeled videos is essential for advancing self-supervised tracking. However, conventional self-supervised trackers lack effective context modeling, while existing context association methods based…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Yaozong Zheng , Qihua Liang , Bineng Zhong , Shuimu Zeng , Yuanliang Xue , Ning Li , Shuxiang Song

Semi-supervised learning aims to leverage numerous unlabeled data to improve the model performance. Current semi-supervised 3D object detection methods typically use a teacher to generate pseudo labels for a student, and the quality of the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xiaopei Wu , Liang Peng , Liang Xie , Yuenan Hou , Binbin Lin , Xiaoshui Huang , Haifeng Liu , Deng Cai , Wanli Ouyang

Training high-accuracy 3D detectors necessitates massive labeled 3D annotations with 7 degree-of-freedom, which is laborious and time-consuming. Therefore, the form of point annotations is proposed to offer significant prospects for…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Hongzhi Gao , Zheng Chen , Zehui Chen , Lin Chen , Jiaming Liu , Shanghang Zhang , Feng Zhao

Video Instance Segmentation (VIS) faces significant annotation challenges due to its dual requirements of pixel-level masks and temporal consistency labels. While recent unsupervised methods like VideoCutLER eliminate optical flow…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Kaixuan Lu , Mehmet Onurcan Kaya , Dim P. Papadopoulos

We present a novel approach for hand-object action recognition that leverages 2D point tracks as an additional motion cue. While most existing methods rely on RGB appearance, human pose estimation, or their combination, our work…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Dennis Holzmann , Sven Wachsmuth

Semi-supervised learning, which leverages both annotated and unannotated data, is an efficient approach for medical image segmentation, where obtaining annotations for the whole dataset is time-consuming and costly. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-02-06 Ruizhe Li , Grazziela Figueredo , Dorothee Auer , Rob Dineen , Paul Morgan , Xin Chen