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Topographic mapping in planetary environments relies on accurate 3D scan registration methods. However, most global registration algorithms relying on features such as FPFH and Harris-3D show poor alignment accuracy in these settings due to…

Computer Vision and Pattern Recognition · Computer Science 2015-09-24 Siddhant Ahuja , Peter Iles , Steven L. Waslander

Many tasks performed in image-guided procedures can be cast as pose estimation problems, where specific projections are chosen to reach a target in 3D space. In this study, we first develop a differentiable projection (DiffProj) rendering…

Odometry is of key importance for localization in the absence of a map. There is considerable work in the area of visual odometry (VO), and recent advances in deep learning have brought novel approaches to VO, which directly learn salient…

Computer Vision and Pattern Recognition · Computer Science 2020-03-06 Wei Wang , Muhamad Risqi U. Saputra , Peijun Zhao , Pedro Gusmao , Bo Yang , Changhao Chen , Andrew Markham , Niki Trigoni

The matching of 3D shapes has been extensively studied for shapes represented as surface meshes, as well as for shapes represented as point clouds. While point clouds are a common representation of raw real-world 3D data (e.g. from laser…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Dongliang Cao , Florian Bernard

In this paper we propose a supervised initialization scheme for cascaded face alignment based on explicit head pose estimation. We first investigate the failure cases of most state of the art face alignment approaches and observe that these…

Computer Vision and Pattern Recognition · Computer Science 2015-07-21 Heng Yang , Wenxuan Mou , Yichi Zhang , Ioannis Patras , Hatice Gunes , Peter Robinson

Point cloud registration is a classical topic in the field of 3D Vision and Computer Graphics. Generally, the implementation of registration is typically sensitive to similarity transformations (translation, scaling, and rotation), noisy…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Chenlei Lv , Hui Huang

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

Finding correspondences between 3D deformable shapes is an important and long-standing problem in geometry processing, computer vision, graphics, and beyond. While various shape matching datasets exist, they are mostly static or limited in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Viktoria Ehm , Nafie El Amrani , Yizheng Xie , Lennart Bastian , Maolin Gao , Weikang Wang , Lu Sang , Dongliang Cao , Tobias Weißberg , Zorah Lähner , Daniel Cremers , Florian Bernard

We present a single-image head mesh reconstruction framework that addresses the longstanding challenge of simultaneously preserving facial identity and producing industry-grade topology. Our framework adopts a coarse-to-fine optimization…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Yunmu Wang , Zoubin Bi , Bowen Cai , Chenchu Rong , Jinlong Wang , Junchen Deng , Aocheng Huang , Jidong Jia , Huan Fu

Three-dimensional shape reconstruction of 2D landmark points on a single image is a hallmark of human vision, but is a task that has been proven difficult for computer vision algorithms. We define a feed-forward deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2016-09-29 Ruiqi Zhao , Yan Wang , Aleix Martinez

Unsafe surgical care is a critical health concern, often linked to limitations in surgeon experience, skills, and situational awareness. Integrating patient-specific 3D models into the surgical field can enhance visualization, provide…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Alberto Neri , Veronica Penza , Nazim Haouchine , Leonardo S. Mattos

Modern sensing technologies have enabled the collection of unstructured point cloud data (PCD) of varying sizes, which are used to monitor the geometric accuracy of 3D objects. PCD are widely applied in advanced manufacturing processes,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Mariafrancesca Patalano , Giovanna Capizzi , Kamran Paynabar

Point cloud registration is a fundamental problem in 3D scanning. In this paper, we address the frequent special case of registering terrestrial LiDAR scans (or, more generally, levelled point clouds). Many current solutions still rely on…

Computer Vision and Pattern Recognition · Computer Science 2018-12-03 Zhipeng Cai , Tat-Jun Chin , Alvaro Parra Bustos , Konrad Schindler

Point clouds-based Networks have achieved great attention in 3D object classification, segmentation and indoor scene semantic parsing. In terms of face recognition, 3D face recognition method which directly consume point clouds as input is…

Computer Vision and Pattern Recognition · Computer Science 2019-11-25 Ziyu Zhang , Feipeng Da , Yi Yu

There is a current increase in the development of "4D" Doppler-capable radar and lidar range sensors that produce 3D point clouds where all points also have information about the radial velocity relative to the sensor. 4D radars in…

Robotics · Computer Science 2023-10-30 Vladimír Kubelka , Emil Fritz , Martin Magnusson

Face recognition has been of great importance in many applications as a biometric for its throughput, convenience, and non-invasiveness. Recent advancements in deep Convolutional Neural Network (CNN) architectures have boosted significantly…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Zhiqian You , Tingting Yang , Miao Jin

Recent advancements in learning techniques that employ coordinate-based neural representations have yielded remarkable results in multi-view 3D reconstruction tasks. However, these approaches often require a substantial number of input…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Pol Caselles , Eduard Ramon , Jaime Garcia , Gil Triginer , Francesc Moreno-Noguer

Registering point clouds of dressed humans to parametric human models is a challenging task in computer vision. Traditional approaches often rely on heavily engineered pipelines that require accurate manual initialization of human poses and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Shaofei Wang , Andreas Geiger , Siyu Tang

This paper studies the complex task of simultaneous multi-object 3D reconstruction, 6D pose and size estimation from a single-view RGB-D observation. In contrast to instance-level pose estimation, we focus on a more challenging problem…

Computer Vision and Pattern Recognition · Computer Science 2022-03-04 Muhammad Zubair Irshad , Thomas Kollar , Michael Laskey , Kevin Stone , Zsolt Kira

Automated axon tracing via fully supervised learning requires large amounts of 3D brain imagery, which is time consuming and laborious to obtain. It also requires expertise. Thus, there is a need for more efficient segmentation and…

Image and Video Processing · Electrical Eng. & Systems 2023-11-08 Nina I. Shamsi , Alex S. Xu , Lars A. Gjesteby , Laura J. Brattain