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Deploying 3D detectors in unfamiliar domains has been demonstrated to result in a significant 70-90% drop in detection rate due to variations in lidar, geography, or weather from their training dataset. This domain gap leads to missing…

Computer Vision and Pattern Recognition · Computer Science 2024-08-16 Darren Tsai , Julie Stephany Berrio , Mao Shan , Eduardo Nebot , Stewart Worrall

In the field of domain adaptation (DA) on 3D object detection, most of the work is dedicated to unsupervised domain adaptation (UDA). Yet, without any target annotations, the performance gap between the UDA approaches and the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Tsung-Lin Tsou , Tsung-Han Wu , Winston H. Hsu

Multi-label image recognition in the low-label regime is a task of great challenge and practical significance. Previous works have focused on learning the alignment between textual and visual spaces to compensate for limited image labels,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Ping Hu , Ximeng Sun , Stan Sclaroff , Kate Saenko

Conventional low-rank adaptation methods build adapters without considering data context, leading to sub-optimal fine-tuning performance and severe forgetting of inherent world knowledge. In this paper, we propose context-oriented…

Machine Learning · Computer Science 2025-06-17 Yibo Yang , Sihao Liu , Chuan Rao , Bang An , Tiancheng Shen , Philip H. S. Torr , Ming-Hsuan Yang , Bernard Ghanem

Weakly supervised object detection (WSOD), where a detector is trained with only image-level annotations, is attracting more and more attention. As a method to obtain a well-performing detector, the detector and the instance labels are…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Satoshi Kosugi , Toshihiko Yamasaki , Kiyoharu Aizawa

Monocular 3D Object Detection represents a challenging Computer Vision task due to the nature of the input used, which is a single 2D image, lacking in any depth cues and placing the depth estimation problem as an ill-posed one. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Diana-Alexandra Sas , Florin Oniga

Monocular 3D scene understanding tasks, such as object size estimation, heading angle estimation and 3D localization, is challenging. Successful modern day methods for 3D scene understanding require the use of a 3D sensor. On the other…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Xinshuo Weng , Kris Kitani

Leveraging LiDAR-based detectors or real LiDAR point data to guide monocular 3D detection has brought significant improvement, e.g., Pseudo-LiDAR methods. However, the existing methods usually apply non-end-to-end training strategies and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Yu Hong , Hang Dai , Yong Ding

Monocular 3D object detection has attracted widespread attention due to its potential to accurately obtain object 3D localization from a single image at a low cost. Depth estimation is an essential but challenging subtask of monocular 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Longfei Yan , Pei Yan , Shengzhou Xiong , Xuanyu Xiang , Yihua Tan

3D object detection plays a crucial role in numerous intelligent vision systems. Detection in the open world inevitably encounters various adverse scenes, such as dense fog, heavy rain, and low light conditions. Although existing efforts…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Xingyuan Li , Jinyuan Liu , Yixin Lei , Long Ma , Xin Fan , Risheng Liu

Video Anomaly Detection (VAD) has been extensively studied under the settings of One-Class Classification (OCC) and Weakly-Supervised learning (WS), which however both require laborious human-annotated normal/abnormal labels. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Yongwei Nie , Hao Huang , Chengjiang Long , Qing Zhang , Pradipta Maji , Hongmin Cai

Monocular 3D object detection has long been a challenging task in autonomous driving. Most existing methods follow conventional 2D detectors to first localize object centers, and then predict 3D attributes by neighboring features. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Renrui Zhang , Han Qiu , Tai Wang , Ziyu Guo , Yiwen Tang , Xuanzhuo Xu , Ziteng Cui , Yu Qiao , Peng Gao , Hongsheng Li

Frame-by-frame annotation of bounding boxes by clinical experts is often required to train fully supervised object detection models on medical video data. We propose a method for improving object detection in medical videos through weak…

Recent progress in 3D object detection from single images leverages monocular depth estimation as a way to produce 3D pointclouds, turning cameras into pseudo-lidar sensors. These two-stage detectors improve with the accuracy of the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Dennis Park , Rares Ambrus , Vitor Guizilini , Jie Li , Adrien Gaidon

Monocular 3D detection relies on just a single camera and is therefore easy to deploy. Yet, achieving reliable 3D understanding from monocular images requires substantial annotation, and 3D labels are especially costly. To maximize…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Johannes Meier , Florian Günther , Riccardo Marin , Oussema Dhaouadi , Jacques Kaiser , Daniel Cremers

The performance of object detection, to a great extent, depends on the availability of large annotated datasets. To alleviate the annotation cost, the research community has explored a number of ways to exploit unlabeled or weakly labeled…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Shijie Fang , Yuhang Cao , Xinjiang Wang , Kai Chen , Dahua Lin , Wayne Zhang

Compared to 2D lanes, real 3D lane data is difficult to collect accurately. In this paper, we propose a novel method for training 3D lanes with only 2D lane labels, called weakly supervised 3D lane detection WS-3D-Lane. By assumptions of…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Jianyong Ai , Wenbo Ding , Jiuhua Zhao , Jiachen Zhong

Providing ground truth supervision to train visual models has been a bottleneck over the years, exacerbated by domain shifts which degenerate the performance of such models. This was the case when visual tasks relied on handcrafted features…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Gabriel Villalonga , Antonio M. Lopez

CAD model retrieval to real-world scene observations has shown strong promise as a basis for 3D perception of objects and a clean, lightweight mesh-based scene representation; however, current approaches to retrieve CAD models to a query…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Tim Beyer , Angela Dai

Semi- and weakly-supervised learning have recently attracted considerable attention in the object detection literature since they can alleviate the cost of annotation needed to successfully train deep learning models. State-of-art…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Akhil Meethal , Marco Pedersoli , Zhongwen Zhu , Francisco Perdigon Romero , Eric Granger
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