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Pointly Supervised Object Detection (PSOD) has attracted considerable interests due to its lower labeling cost as compared to box-level supervised object detection. However, the complex scenes, densely packed and dynamic-scale objects in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Shitian He , Huanxin Zou , Yingqian Wang , Boyang Li , Xu Cao , Ning Jing

Vision Transformers (ViTs) have achieved remarkable success in computer vision tasks. However, their potential in rotation-sensitive scenarios has not been fully explored, and this limitation may be inherently attributed to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Hongtian Yu , Yunjie Tian , Qixiang Ye , Yunfan Liu

Manual annotation of bounding boxes for object detection in digital images is tedious, and time and resource consuming. In this paper, we propose a semi-automatic method for efficient bounding box annotation. The method trains the object…

Machine Learning · Computer Science 2020-07-03 Bishwo Adhikari , Heikki Huttunen

Recently, sparsely-supervised 3D object detection has gained great attention, achieving performance close to fully-supervised 3D objectors while requiring only a few annotated instances. Nevertheless, these methods suffer challenges when…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Shijia Zhao , Qiming Xia , Xusheng Guo , Pufan Zou , Maoji Zheng , Hai Wu , Chenglu Wen , Cheng Wang

Although multi-view 3D object detection based on the Bird's-Eye-View (BEV) paradigm has garnered widespread attention as an economical and deployment-friendly perception solution for autonomous driving, there is still a performance gap…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zheng Jiang , Jinqing Zhang , Yanan Zhang , Qingjie Liu , Zhenghui Hu , Baohui Wang , Yunhong Wang

In this paper, we propose the LiDAR Distillation to bridge the domain gap induced by different LiDAR beams for 3D object detection. In many real-world applications, the LiDAR points used by mass-produced robots and vehicles usually have…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Yi Wei , Zibu Wei , Yongming Rao , Jiaxin Li , Jie Zhou , Jiwen Lu

Recent advancements in camera-based 3D object detection have introduced cross-modal knowledge distillation to bridge the performance gap with LiDAR 3D detectors, leveraging the precise geometric information in LiDAR point clouds. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Sanmin Kim , Youngseok Kim , Sihwan Hwang , Hyeonjun Jeong , Dongsuk Kum

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 balance between high accuracy and high speed has always been a challenging task in semantic image segmentation. Compact segmentation networks are more widely used in the case of limited resources, while their performances are…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Yingchao Feng , Xian Sun , Wenhui Diao , Jihao Li , Xin Gao

Knowledge Distillation (KD) for object detection aims to train a compact detector by transferring knowledge from a teacher model. Since the teacher model perceives data in a way different from humans, existing KD methods only distill…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Jiawei Liang , Siyuan Liang , Aishan Liu , Ke Ma , Jingzhi Li , Xiaochun Cao

This paper proposes an approach for rapid bounding box annotation for object detection datasets. The procedure consists of two stages: The first step is to annotate a part of the dataset manually, and the second step proposes annotations…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Bishwo Adhikari , Jukka Peltomäki , Jussi Puura , Heikki Huttunen

We propose a method to learn explicit, class-conditioned spatial priors for object placement in natural scenes by distilling the implicit placement knowledge encoded in text-conditioned diffusion models. Prior work relies either on manually…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Marco Schouten , Ioannis Siglidis , Serge Belongie , Dim P. Papadopoulos

One object class may show large variations due to diverse illuminations, backgrounds and camera viewpoints. Traditional object detection methods often perform worse under unconstrained video environments. To address this problem, many…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 Dapeng Luo , Zhipeng Zeng , Nong Sang , Xiang Wu , Longsheng Wei , Quanzheng Mou , Jun Cheng , Chen Luo

Learning in data-scarce settings has recently gained significant attention in the research community. Semi-supervised object detection(SSOD) aims to improve detection performance by leveraging a large number of unlabeled images alongside a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Chaoxin Wang , Bharaneeshwar Balasubramaniyam , Anurag Sangem , Nicolais Guevara , Doina Caragea

Deep neural networks have set the state-of-the-art in computer vision tasks such as bounding box detection and semantic segmentation. Object detectors and segmentation models assign confidence scores to predictions, reflecting the model's…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Tobias J. Riedlinger , Kira Maag , Hanno Gottschalk

Object detection using single point supervision has received increasing attention over the years. However, the performance gap between point supervised object detection (PSOD) and bounding box supervised detection remains large. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Pengfei Chen , Xuehui Yu , Xumeng Han , Najmul Hassan , Kai Wang , Jiachen Li , Jian Zhao , Humphrey Shi , Zhenjun Han , Qixiang Ye

One of the important bottlenecks in training modern object detectors is the need for labeled images where bounding box annotations have to be produced for each object present in the image. This bottleneck is further exacerbated in aerial…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Akhil Meethal , Eric Granger , Marco Pedersoli

Pixel-wise clean annotation is necessary for fully-supervised semantic segmentation, which is laborious and expensive to obtain. In this paper, we propose a weakly supervised 2D semantic segmentation model by incorporating sparse bounding…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Weixuan Sun , Jing Zhang , Nick Barnes

Knowledge distillation (KD) has shown potential for learning compact models in dense object detection. However, the commonly used softmax-based distillation ignores the absolute classification scores for individual categories. Thus, the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Longrong Yang , Xianpan Zhou , Xuewei Li , Liang Qiao , Zheyang Li , Ziwei Yang , Gaoang Wang , Xi Li

3D semantic occupancy prediction aims to reconstruct the 3D geometry and semantics of the surrounding environment. With dense voxel labels, prior works typically formulate it as a dense segmentation task, independently classifying each…

Graphics · Computer Science 2025-06-06 Wuyang Li , Zhu Yu , Alexandre Alahi
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