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Rotation invariance is an important requirement for point shape analysis. To achieve this, current state-of-the-art methods attempt to construct the local rotation-invariant representation through learning or defining the local reference…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yiyang Chen , Lunhao Duan , Shanshan Zhao , Changxing Ding , Dacheng Tao

We introduce Rectified Point Flow, a unified parameterization that formulates pairwise point cloud registration and multi-part shape assembly as a single conditional generative problem. Given unposed point clouds, our method learns a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Tao Sun , Liyuan Zhu , Shengyu Huang , Shuran Song , Iro Armeni

Object pose estimation constitutes a critical area within the domain of 3D vision. While contemporary state-of-the-art methods that leverage real-world pose annotations have demonstrated commendable performance, the procurement of such real…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Yang You , Wenhao He , Jin Liu , Hongkai Xiong , Weiming Wang , Cewu Lu

Three dimensional (3D) object recognition is becoming a key desired capability for many computer vision systems such as autonomous vehicles, service robots and surveillance drones to operate more effectively in unstructured environments.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Chenxi Xiao , Juan Wachs

Reorienting objects by using supports is a practical yet challenging manipulation task. Owing to the intricate geometry of objects and the constrained feasible motions of the robot, multiple manipulation steps are required for object…

Robotics · Computer Science 2023-08-30 Peng Xu , Hu Cheng , Jiankun Wang , Max Q. -H. Meng

Implicit function based surface reconstruction has been studied for a long time to recover 3D shapes from point clouds sampled from surfaces. Recently, Signed Distance Functions (SDFs) and Occupany Functions are adopted in learning-based…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Meng Jia , Matthew Kyan

Point clouds are a very efficient way to represent volumetric data in medical imaging. First, they do not occupy resources for empty spaces and therefore can avoid trade-offs between resolution and field-of-view for voxel-based 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Mattias Paul Heinrich

Human pose estimation has been widely studied with much focus on supervised learning requiring sufficient annotations. However, in real applications, a pretrained pose estimation model usually need be adapted to a novel domain with no…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Xixia Xu , Qi Zou , Xue Lin

Point cloud registration has seen significant advancements with the application of deep learning techniques. However, existing approaches often overlook the potential of integrating radiometric information from RGB images. This limitation…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Zhaoyi Wang , Shengyu Huang , Jemil Avers Butt , Yuanzhou Cai , Matej Varga , Andreas Wieser

We present PPFNet - Point Pair Feature NETwork for deeply learning a globally informed 3D local feature descriptor to find correspondences in unorganized point clouds. PPFNet learns local descriptors on pure geometry and is highly aware of…

Computer Vision and Pattern Recognition · Computer Science 2018-03-05 Haowen Deng , Tolga Birdal , Slobodan Ilic

We propose POse-guided SElective Fusion (POSEFusion), a single-view human volumetric capture method that leverages tracking-based methods and tracking-free inference to achieve high-fidelity and dynamic 3D reconstruction. By contributing a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Zhe Li , Tao Yu , Zerong Zheng , Kaiwen Guo , Yebin Liu

Human pose estimation aims to accurately estimate a wide variety of human poses. However, existing datasets often follow a long-tailed distribution that unusual poses only occupy a small portion, which further leads to the lack of diversity…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Wentao Jiang , Sheng Jin , Wentao Liu , Chen Qian , Ping Luo , Si Liu

Place recognition is an important task for robots and autonomous cars to localize themselves and close loops in pre-built maps. While single-modal sensor-based methods have shown satisfactory performance, cross-modal place recognition that…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Weidong Xie , Lun Luo , Nanfei Ye , Yi Ren , Shaoyi Du , Minhang Wang , Jintao Xu , Rui Ai , Weihao Gu , Xieyuanli Chen

For the current 3D human pose estimation task, a group of methods mainly learn the rules of 2D-3D projection from spatial and temporal correlation. However, earlier methods model the global features of the entire body joint in the time…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Xinwei Yu , Xiaohua Zhang

Facial alignment involves finding a set of landmark points on an image with a known semantic meaning. However, this semantic meaning of landmark points is often lost in 2D approaches where landmarks are either moved to visible boundaries or…

Computer Vision and Pattern Recognition · Computer Science 2017-09-11 Chandrasekhar Bhagavatula , Chenchen Zhu , Khoa Luu , Marios Savvides

In this work, we demonstrate that receptive fields in 3D pose estimation can be effectively specified using optical flow. We introduce adaptive receptive fields, a simple and effective method to aid receptive field selection in pose…

Computer Vision and Pattern Recognition · Computer Science 2020-05-29 Michael Shin , Eduardo Castillo , Irene Font Peradejordi , Shobhna Jayaraman

With the prevalence of LiDAR sensors in autonomous driving, 3D object tracking has received increasing attention. In a point cloud sequence, 3D object tracking aims to predict the location and orientation of an object in consecutive frames…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Zhipeng Luo , Changqing Zhou , Liang Pan , Gongjie Zhang , Tianrui Liu , Yueru Luo , Haiyu Zhao , Ziwei Liu , Shijian Lu

Articulation-centric 2D/3D pose supervision forms the core training objective in most existing 3D human pose estimation techniques. Except for synthetic source environments, acquiring such rich supervision for each real target domain at…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Mugalodi Rakesh , Jogendra Nath Kundu , Varun Jampani , R. Venkatesh Babu

Transferring human motion from a source to a target person poses great potential in computer vision and graphics applications. A crucial step is to manipulate sequential future motion while retaining the appearance characteristic.Previous…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Bowen Wu , Zhenyu Xie , Xiaodan Liang , Yubei Xiao , Haoye Dong , Liang Lin

We propose a novel approach to 3D human pose estimation from a single depth map. Recently, convolutional neural network (CNN) has become a powerful paradigm in computer vision. Many of computer vision tasks have benefited from CNNs,…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Gyeongsik Moon , Ju Yong Chang , Yumin Suh , Kyoung Mu Lee