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Related papers: Towards 3D Object Detection with 2D Supervision

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Current 3D segmentation methods heavily rely on large-scale point-cloud datasets, which are notoriously laborious to annotate. Few attempts have been made to circumvent the need for dense per-point annotations. In this work, we look at…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Julian Chibane , Francis Engelmann , Tuan Anh Tran , Gerard Pons-Moll

Supervised training of object detectors requires well-annotated large-scale datasets, whose production is costly. Therefore, some efforts have been made to obtain annotations in economical ways, such as cloud sourcing. However, datasets…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Jiafeng Mao , Qing Yu , Yoko Yamakata , Kiyoharu Aizawa

The labeling cost of large number of bounding boxes is one of the main challenges for training modern object detectors. To reduce the dependence on expensive bounding box annotations, we propose a new semi-supervised object detection…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 JIyang Gao , Jiang Wang , Shengyang Dai , Li-Jia Li , Ram Nevatia

Unsupervised domain adaptation for LiDAR-based 3D object detection (3D UDA) based on the teacher-student architecture with pseudo labels has achieved notable improvements in recent years. Although it is quite popular to collect point clouds…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Shenao Zhao , Pengpeng Liang , Zhoufan Yang

We present a semi-supervised approach that localizes multiple unknown object instances in long videos. We start with a handful of labeled boxes and iteratively learn and label hundreds of thousands of object instances. We propose criteria…

Computer Vision and Pattern Recognition · Computer Science 2015-05-22 Ishan Misra , Abhinav Shrivastava , Martial Hebert

Object detectors trained on fully-annotated data currently yield state of the art performance but require expensive manual annotations. On the other hand, weakly-supervised detectors have much lower performance and cannot be used reliably…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Linpu Fang , Hang Xu , Zhili Liu , Sarah Parisot , Zhenguo Li

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

Unsupervised 3D object detection methods have emerged to leverage vast amounts of data without requiring manual labels for training. Recent approaches rely on dynamic objects for learning to detect mobile objects but penalize the detections…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Ted Lentsch , Holger Caesar , Dariu M. Gavrila

Annotating objects with 3D bounding boxes in LiDAR pointclouds is a costly human driven process in an autonomous driving perception system. In this paper, we present a method to semi-automatically annotate real-world pointclouds collected…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Weishuang Zhang , B Ravi Kiran , Thomas Gauthier , Yanis Mazouz , Theo Steger

Training neural networks to perform 3D object detection for autonomous driving requires a large amount of diverse annotated data. However, obtaining training data with sufficient quality and quantity is expensive and sometimes impossible…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Tamas Matuszka , Daniel Kozma

Recent self-training techniques have shown notable improvements in unsupervised domain adaptation for 3D object detection (3D UDA). These techniques typically select pseudo labels, i.e., 3D boxes, to supervise models for the target domain.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Zhanwei Zhang , Minghao Chen , Shuai Xiao , Liang Peng , Hengjia Li , Binbin Lin , Ping Li , Wenxiao Wang , Boxi Wu , Deng Cai

Tiny objects, with their limited spatial resolution, often resemble point-like distributions. As a result, bounding box prediction using point-level supervision emerges as a natural and cost-effective alternative to traditional box-level…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Haoran Zhu , Chang Xu , Ruixiang Zhang , Fang Xu , Wen Yang , Haijian Zhang , Gui-Song Xia

We propose and study open-vocabulary monocular 3D detection, a novel task that aims to detect objects of any categores in metric 3D space from a single RGB image. Existing 3D object detectors either rely on costly sensors such as LiDAR or…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Jin Yao , Hao Gu , Xuweiyi Chen , Jiayun Wang , Zezhou Cheng

Recent advances in deep learning significantly boost the performance of salient object detection (SOD) at the expense of labeling larger-scale per-pixel annotations. To relieve the burden of labor-intensive labeling, deep unsupervised SOD…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Pengxiang Yan , Ziyi Wu , Mengmeng Liu , Kun Zeng , Liang Lin , Guanbin Li

While multi-class 3D detectors are needed in many robotics applications, training them with fully labeled datasets can be expensive in labeling cost. An alternative approach is to have targeted single-class labels on disjoint data samples.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Mao Ye , Chenxi Liu , Maoqing Yao , Weiyue Wang , Zhaoqi Leng , Charles R. Qi , Dragomir Anguelov

The unsupervised 3D object detection is to accurately detect objects in unstructured environments with no explicit supervisory signals. This task, given sparse LiDAR point clouds, often results in compromised performance for detecting…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Ruiyang Zhang , Hu Zhang , Hang Yu , Zhedong Zheng

The curation of large-scale datasets is still costly and requires much time and resources. Data is often manually labeled, and the challenge of creating high-quality datasets remains. In this work, we fill the research gap using active…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Ahmed Ghita , Bjørk Antoniussen , Walter Zimmer , Ross Greer , Christian Creß , Andreas Møgelmose , Mohan M. Trivedi , Alois C. Knoll

Monocular 3D object detection is a fundamental yet challenging task in 3D scene understanding. Existing approaches heavily depend on supervised learning with extensive 3D annotations, which are often acquired from LiDAR point clouds through…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Zihua Liu , Hiroki Sakuma , Masatoshi Okutomi

3D occupancy prediction holds significant promise in the fields of robot perception and autonomous driving, which quantifies 3D scenes into grid cells with semantic labels. Recent works mainly utilize complete occupancy labels in 3D voxel…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Mingjie Pan , Jiaming Liu , Renrui Zhang , Peixiang Huang , Xiaoqi Li , Bing Wang , Hongwei Xie , Li Liu , Shanghang Zhang

Accurate 3D object detection in LiDAR point clouds is crucial for autonomous driving systems. To achieve state-of-the-art performance, the supervised training of detectors requires large amounts of human-annotated data, which is expensive…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Christian Fruhwirth-Reisinger , Wei Lin , Dušan Malić , Horst Bischof , Horst Possegger
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