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Point-cloud-based 3D object detection suffers from performance degradation when encountering data with novel domain gaps. To tackle it, the single-domain generalization (SDG) aims to generalize the detection model trained in a limited…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Shuangzhi Li , Lei Ma , Xingyu Li

In this paper, we study the problem of unsupervised object detection from 3D point clouds in self-driving scenes. We present a simple yet effective method that exploits (i) point clustering in near-range areas where the point clouds are…

Computer Vision and Pattern Recognition · Computer Science 2023-11-06 Lunjun Zhang , Anqi Joyce Yang , Yuwen Xiong , Sergio Casas , Bin Yang , Mengye Ren , Raquel Urtasun

This paper presents a novel framework for robust 3D object detection from point clouds via cross-modal hallucination. Our proposed approach is agnostic to either hallucination direction between LiDAR and 4D radar. We introduce multiple…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Jianning Deng , Gabriel Chan , Hantao Zhong , Chris Xiaoxuan Lu

In this work, we address the problem of 3D object detection from point cloud data in real time. For autonomous vehicles to work, it is very important for the perception component to detect the real world objects with both high accuracy and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Abhinav Sagar

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

Semi-supervised 3D object detection is a promising yet under-explored direction to reduce data annotation costs, especially for cluttered indoor scenes. A few prior works, such as SESS and 3DIoUMatch, attempt to solve this task by utilizing…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Yucheng Han , Na Zhao , Weiling Chen , Keng Teck Ma , Hanwang Zhang

Open-World Object Detection (OWOD) extends object detection problem to a realistic and dynamic scenario, where a detection model is required to be capable of detecting both known and unknown objects and incrementally learning newly…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Ruohuan Fang , Guansong Pang , Lei Zhou , Xiao Bai , Jin Zheng

Estimating 3D hand and object pose from a single image is an extremely challenging problem: hands and objects are often self-occluded during interactions, and the 3D annotations are scarce as even humans cannot directly label the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Shaowei Liu , Hanwen Jiang , Jiarui Xu , Sifei Liu , Xiaolong Wang

3D object detection is fundamentally important for various emerging applications, including autonomous driving and robotics. A key requirement for training an accurate 3D object detector is the availability of a large amount of LiDAR-based…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Ruiyu Mao , Sarthak Kumar Maharana , Rishabh K Iyer , Yunhui Guo

Unsupervised domain adaptation (UDA) plays a crucial role in object detection when adapting a source-trained detector to a target domain without annotated data. In this paper, we propose a novel and effective four-step UDA approach that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Mohamed L. Mekhalfi , Davide Boscaini , Fabio Poiesi

Object detection and tracking are vital and fundamental tasks for autonomous driving, aiming at identifying and locating objects from those predefined categories in a scene. 3D point cloud learning has been attracting more and more…

Computer Vision and Pattern Recognition · Computer Science 2023-11-13 Yang Peng

We present PointAugment, a new auto-augmentation framework that automatically optimizes and augments point cloud samples to enrich the data diversity when we train a classification network. Different from existing auto-augmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Ruihui Li , Xianzhi Li , Pheng-Ann Heng , Chi-Wing Fu

Traditional semi-supervised object detection methods assume a fixed set of object classes (in-distribution or ID classes) during training and deployment, which limits performance in real-world scenarios where unseen classes…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Garvita Allabadi , Ana Lucic , Siddarth Aananth , Tiffany Yang , Yu-Xiong Wang , Vikram Adve

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

Real-time 3D object detection from point clouds is essential for dynamic scene understanding in applications such as augmented reality, robotics and navigation. We introduce a novel Spatial-prioritized and Rank-aware 3D object detection…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Chenyu Zhao , Xianwei Zheng , Zimin Xia , Linwei Yue , Nan Xue

Fine-grained image classification is to recognize hundreds of subcategories belonging to the same basic-level category, such as 200 subcategories belonging to the bird, which is highly challenging due to large variance in the same…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Yuxin Peng , Xiangteng He , Junjie Zhao

With the rapid development of large models, the need for data has become increasingly crucial. Especially in 3D object detection, costly manual annotations have hindered further advancements. To reduce the burden of annotation, we study the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Jiawei He , Yuqi Wang , Yuntao Chen , Zhaoxiang Zhang

3D object detection is an indispensable component for scene understanding. However, the annotation of large-scale 3D datasets requires significant human effort. To tackle this problem, many methods adopt weakly supervised 3D object…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Guowen Zhang , Junsong Fan , Liyi Chen , Zhaoxiang Zhang , Zhen Lei , Lei Zhang

In recent years, much progress has been made in LiDAR-based 3D object detection mainly due to advances in detector architecture designs and availability of large-scale LiDAR datasets. Existing 3D object detectors tend to perform well on the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Eduardo R. Corral-Soto , Alaap Grandhi , Yannis Y. He , Mrigank Rochan , Bingbing Liu

In this work we present point-level region contrast, a self-supervised pre-training approach for the task of object detection. This approach is motivated by the two key factors in detection: localization and recognition. While accurate…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Yutong Bai , Xinlei Chen , Alexander Kirillov , Alan Yuille , Alexander C. Berg