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Visual localization has traditionally been formulated as a pair-wise pose regression problem. Existing approaches mainly estimate relative poses between two images and employ a late-fusion strategy to obtain absolute pose estimates.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Tianchen Deng , Wenhua Wu , Kunzhen Wu , Guangming Wang , Siting Zhu , Shenghai Yuan , Xun Chen , Guole Shen , Zhe Liu , Hesheng Wang

Deep learning advances have enabled accurate six-degree-of-freedom (6DoF) object pose estimation, widely used in robotics, AR/VR, and autonomous systems. However, backdoor attacks pose significant security risks. While most research focuses…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Jihui Guo , Zongmin Zhang , Zhen Sun , Yuhao Yang , Jinlin Wu , Fu Zhang , Xinlei He

We introduce a discriminative multimodal descriptor based on a pair of sensor readings: a point cloud from a LiDAR and an image from an RGB camera. Our descriptor, named MinkLoc++, can be used for place recognition, re-localization and loop…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Jacek Komorowski , Monika Wysoczanska , Tomasz Trzcinski

In this work we present a novel approach to joint semantic localisation and scene understanding. Our work is motivated by the need for localisation algorithms which not only predict 6-DoF camera pose but also simultaneously recognise…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Ignas Budvytis , Marvin Teichmann , Tomas Vojir , Roberto Cipolla

High-precision vehicle localization with commercial setups is a crucial technique for high-level autonomous driving tasks. Localization with a monocular camera in LiDAR map is a newly emerged approach that achieves promising balance between…

Robotics · Computer Science 2023-05-09 Jinyu Miao , Kun Jiang , Yunlong Wang , Tuopu Wen , Zhongyang Xiao , Zheng Fu , Mengmeng Yang , Maolin Liu , Diange Yang

We propose a novel concept to directly match feature descriptors extracted from RGB images, with feature descriptors extracted from 3D point clouds. We use this concept to localize the position and orientation (pose) of the camera of a…

Computer Vision and Pattern Recognition · Computer Science 2019-06-17 Uzair Nadeem , Mohammad A. A. K. Jalwana , Mohammed Bennamoun , Roberto Togneri , Ferdous Sohel

Camera relocalization has various applications in autonomous driving. Previous camera pose regression models consider only ideal scenarios where there is little environmental perturbation. To deal with challenging driving environments that…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Sijie Wang , Qiyu Kang , Rui She , Wee Peng Tay , Andreas Hartmannsgruber , Diego Navarro Navarro

We present a new method to relocalize the 6DOF pose of an event camera solely based on the event stream. Our method first creates the event image from a list of events that occurs in a very short time interval, then a Stacked Spatial LSTM…

Computer Vision and Pattern Recognition · Computer Science 2019-07-10 Anh Nguyen , Thanh-Toan Do , Darwin G. Caldwell , Nikos G. Tsagarakis

In this paper, we present SPVLoc, a global indoor localization method that accurately determines the six-dimensional (6D) camera pose of a query image and requires minimal scene-specific prior knowledge and no scene-specific training. Our…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Niklas Gard , Anna Hilsmann , Peter Eisert

LiDAR odometry (LO) describes the task of finding an alignment of subsequent LiDAR point clouds. This alignment can be used to estimate the motion of the platform where the LiDAR sensor is mounted on. Currently, on the well-known KITTI…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Philipp Adis , Nicolas Horst , Mathias Wien

Cross-modal localization has drawn increasing attention in recent years, while the visual relocalization in prior LiDAR maps is less studied. Related methods usually suffer from inconsistency between the 2D texture and 3D geometry,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Qiyuan Shen , Hengwang Zhao , Weihao Yan , Chunxiang Wang , Tong Qin , Ming Yang

Recently, camera localization has been widely adopted in autonomous robotic navigation due to its efficiency and convenience. However, autonomous navigation in unknown environments often suffers from scene ambiguity, environmental…

Robotics · Computer Science 2025-05-05 Xun Li , Jian Yang , Fenli Jia , Muyu Wang , Qi Wu , Jun Wu , Jinpeng Mi , Jilin Hu , Peidong Liang , Xuan Tang , Ke Li , Xiong You , Xian Wei

In this letter, we introduce GroundLoc, a LiDAR-only localization pipeline designed to localize a mobile robot in large-scale outdoor environments using prior maps. GroundLoc employs a Bird's-Eye View (BEV) image projection focusing on the…

Robotics · Computer Science 2025-10-29 Nicolai Steinke , Daniel Goehring

Directly regressing all 6 degrees-of-freedom (6DoF) for the object pose (e.g. the 3D rotation and translation) in a cluttered environment from a single RGB image is a challenging problem. While end-to-end methods have recently demonstrated…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Yan Di , Fabian Manhardt , Gu Wang , Xiangyang Ji , Nassir Navab , Federico Tombari

Object pose estimation from a single view remains a challenging problem. In particular, partial observability, occlusions, and object symmetries eventually result in pose ambiguity. To account for this multimodality, this work proposes…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Christian Möller , Niklas Funk , Jan Peters

In the realm of point cloud registration, the most prevalent pose evaluation approaches are statistics-based, identifying the optimal transformation by maximizing the number of consistent correspondences. However, registration recall…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Junjie Gao , Chongjian Wang , Zhongjun Ding , Shuangmin Chen , Shiqing Xin , Changhe Tu , Wenping Wang

We introduce the concept of geometric stability to the problem of 6D object pose estimation and propose to learn pose inference based on geometrically stable patches extracted from observed 3D point clouds. According to the theory of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Yifei Shi , Junwen Huang , Xin Xu , Yifan Zhang , Kai Xu

We propose real-time, six degrees of freedom (6DoF), 3D face pose estimation without face detection or landmark localization. We observe that estimating the 6DoF rigid transformation of a face is a simpler problem than facial landmark…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Vítor Albiero , Xingyu Chen , Xi Yin , Guan Pang , Tal Hassner

Category-level object pose estimation aims to find 6D object poses of previously unseen object instances from known categories without access to object CAD models. To reduce the huge amount of pose annotations needed for category-level…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Xiaolong Li , Yijia Weng , Li Yi , Leonidas Guibas , A. Lynn Abbott , Shuran Song , He Wang

In this work, we tackle the problem of category-level online pose tracking of objects from point cloud sequences. For the first time, we propose a unified framework that can handle 9DoF pose tracking for novel rigid object instances as well…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Yijia Weng , He Wang , Qiang Zhou , Yuzhe Qin , Yueqi Duan , Qingnan Fan , Baoquan Chen , Hao Su , Leonidas J. Guibas