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Autonomous vehicles drive millions of miles on the road each year. Under such circumstances, deployed machine learning models are prone to failure both in seemingly normal situations and in the presence of outliers. However, in the training…

Robotics · Computer Science 2025-11-25 Daniel Bogdoll , Finn Sartoris , Vincent Geppert , Svetlana Pavlitska , J. Marius Zöllner

3D segmentation is a core problem in computer vision and, similarly to many other dense prediction tasks, it requires large amounts of annotated data for adequate training. However, densely labeling 3D point clouds to employ…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Ozan Unal , Christos Sakaridis , Luc Van Gool

This paper addresses the task of unsupervised video multi-object segmentation. Current approaches follow a two-stage paradigm: 1) detect object proposals using pre-trained Mask R-CNN, and 2) conduct generic feature matching for temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Tianfei Zhou , Jianwu Li , Xueyi Li , Ling Shao

Monocular 3D object detection is a challenging task in the self-driving and computer vision community. As a common practice, most previous works use manually annotated 3D box labels, where the annotating process is expensive. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Liang Peng , Fei Liu , Zhengxu Yu , Senbo Yan , Dan Deng , Zheng Yang , Haifeng Liu , Deng Cai

The ability to quickly annotate medical imaging data plays a critical role in training deep learning frameworks for segmentation. Doing so for image volumes or video sequences is even more pressing as annotating these is particularly…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Laurent Lejeune , Raphael Sznitman

In quantum machine field, detecting two-dimensional (2D) materials in Silicon chips is one of the most critical problems. Instance segmentation can be considered as a potential approach to solve this problem. However, similar to other deep…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Xuan Bac Nguyen , Apoorva Bisht , Ben Thompson , Hugh Churchill , Khoa Luu , Samee U. Khan

Annotation-efficient segmentation of the numerous mitochondria instances from various electron microscopy (EM) images is highly valuable for biological and neuroscience research. Although unsupervised domain adaptation (UDA) methods can…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Shan Xiong , Jiabao Chen , Ye Wang , Jialin Peng

Object detection under imperfect data receives great attention recently. Weakly supervised object detection (WSOD) suffers from severe localization issues due to the lack of instance-level annotation, while semi-supervised object detection…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Hanjun Li , Xingjia Pan , Ke Yan , Fan Tang , Wei-Shi Zheng

Tracking requires building a discriminative model for the target in the inference stage. An effective way to achieve this is online learning, which can comfortably outperform models that are only trained offline. Recent research shows that…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Tianyu Zhu , Rongkai Ma , Mehrtash Harandi , Tom Drummond

Non-destructive 3D imaging of large multi-particulate samples is essential for quantifying particle-level properties, such as size, shape, and spatial distribution, across applications in mining, materials science, and geology. However,…

Image and Video Processing · Electrical Eng. & Systems 2025-08-25 Philipp D. Lösel , Aleese Barron , Yulai Zhang , Matthias Fabian , Benjamin Young , Nicolas Francois , Andrew M. Kingston

Object detection and semantic segmentation with the 3D lidar point cloud data require expensive annotation. We propose a data augmentation method that takes advantage of already annotated data multiple times. We propose an augmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Petr Šebek , Šimon Pokorný , Patrik Vacek , Tomáš Svoboda

The ability to localize and segment objects from unseen classes would open the door to new applications, such as autonomous object learning in active vision. Nonetheless, improving the performance on unseen classes requires additional…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Yuming Du , Yang Xiao , Vincent Lepetit

It is well known that for some tasks, labeled data sets may be hard to gather. Therefore, we wished to tackle here the problem of having insufficient training data. We examined learning methods from unlabeled data after an initial training…

Machine Learning · Computer Science 2018-04-06 Gal Hyams , Daniel Greenfeld , Dor Bank

Instance segmentation of surgical instruments is a long-standing research problem, crucial for the development of many applications for computer-assisted surgery. This problem is commonly tackled via fully-supervised training of deep…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Luca Sestini , Benoit Rosa , Elena De Momi , Giancarlo Ferrigno , Nicolas Padoy

Addressing performance degradation in 3D LiDAR semantic segmentation due to domain shifts (e.g., sensor type, geographical location) is crucial for autonomous systems, yet manual annotation of target data is prohibitive. This study…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Abhishek Kaushik , Norbert Haala , Uwe Soergel

Instance segmentation is crucial for autonomous driving, but is hindered by the lack of annotated real-world data due to expensive labeling costs. Unsupervised Domain Adaptation (UDA) offers a solution by transferring knowledge from labeled…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Yachan Guo , Yi Xiao , Danna Xue , Jose L. Gomez , Antonio M. Lopez

Point clouds provide a compact and efficient representation of 3D shapes. While deep neural networks have achieved impressive results on point cloud learning tasks, they require massive amounts of manually labeled data, which can be costly…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Omid Poursaeed , Tianxing Jiang , Han Qiao , Nayun Xu , Vladimir G. Kim

Nowadays, autonomous driving systems can detect, segment, and classify the surrounding obstacles using a monocular camera. However, state-of-the-art methods solving these tasks generally perform a fully supervised learning process and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Sid Ali Hamideche , Florent Chiaroni , Mohamed-Cherif Rahal

Unsupervised domain adaptive segmentation typically relies on self-training using pseudo labels predicted by a pre-trained network on an unlabeled target dataset. However, the noisy nature of such pseudo-labels presents a major bottleneck…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Md Shazid Islam , Sayak Nag , Arindam Dutta , Miraj Ahmed , Fahim Faisal Niloy , Shreyangshu Bera , Amit K. Roy-Chowdhury

Semi-supervised learning is a challenging problem which aims to construct a model by learning from limited labeled examples. Numerous methods for this task focus on utilizing the predictions of unlabeled instances consistency alone to…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Peng Tu , Yawen Huang , Feng Zheng , Zhenyu He , Liujun Cao , Ling Shao