Results 41 to 50 of about 48,763 (257)

Robot-to-robot relative pose estimation using humans as markers [PDF]

Autonomous Robots, 2021
In this paper, we propose a method to determine the 3D relative pose of pairs of communicating robots by using human pose-based key-points as correspondences. We adopt a 'leader-follower' framework, where at first, the leader robot visually detects and triangulates the key-points using the state-of-the-art pose detector named OpenPose.
Md Jahidul Islam, Jiawei Mo, Junaed Sattar   +2 more
openaire   +2 more sources

Closed-form camera pose and plane parameters estimation for moments-based visual servoing of planar objects

International Journal of Advanced Robotic Systems, 2022
Image moments are global descriptors of an image and can be used to achieve control-decoupling properties in visual servoing. However, only a few methods completely decouple the control.
Yuhan Chen, Xiao Luo, Baoling Han, Jianfeng Jiang, Yang Liu   +4 more
doaj   +1 more source

Regression-Based Camera Pose Estimation through Multi-Level Local Features and Global Features

Sensors, 2023
Accurate and robust camera pose estimation is essential for high-level applications such as augmented reality and autonomous driving. Despite the development of global feature-based camera pose regression methods and local feature-based matching guided ...
Meng Xu, Zhihuang Zhang, Yuanhao Gong, Stefan Poslad   +3 more
doaj   +1 more source

Wide-Baseline Relative Camera Pose Estimation with Directional Learning [PDF]

2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2021
Modern deep learning techniques that regress the relative camera pose between two images have difficulty dealing with challenging scenarios, such as large camera motions resulting in occlusions and significant changes in perspective that leave little overlap between images.
Kefan Chen, Noah Snavely, Ameesh Makadia
openaire   +2 more sources

Geometry Depth Consistency in RGBD Relative Pose Estimation

CoRR, 2023
Relative pose estimation for RGBD cameras is crucial in a number of applications. Previous approaches either rely on the RGB aspect of the images to estimate pose thus not fully making use of depth in the estimation process or estimate pose from the 3D cloud of points that each image produces, thus not making full use of RGB information.
Sourav Kumar, Chiang-Heng Chien, Benjamin B. Kimia   +2 more
openaire   +2 more sources

Absolute and Relative Pose Estimation in Refractive Multi View

2021 IEEE/CVF International Conference on Computer Vision Workshops (ICCVW), 2021
This paper investigates absolute and relative pose estimation under refraction, which are essential problems for refractive structure from motion. We first present an absolute pose estimation algorithm by leveraging an efficient iterative refinement. Then, we derive a novel refractive epipolar constraint for relative pose estimation.
Xiao Hu, François Lauze, Kim Steenstrup Pedersen, Jean Mélou   +3 more
openaire   +3 more sources

Equivalent Spatial Plane-Based Relative Pose Estimation of UAVs

Drones
The accuracy of relative pose estimation is an important foundation for ensuring the safety and stability of autonomous aerial refueling (AAR) of unmanned aerial vehicles (UAV), and in response to this problem, a relative pose estimation method of UAVs ...
Hangyu Wang, Shuangyi Gong, Chaobo Chen, Jichao Li   +3 more
doaj   +1 more source

An Uncertainty Weighted Non-Cooperative Target Pose Estimation Algorithm, Based on Intersecting Vectors

Aerospace, 2022
Aiming at the relative pose estimation of non-cooperative targets in space traffic management tasks, a two-step pose estimation method, based on spatially intersecting straight lines, is proposed, which mainly includes three aspects: (1) Use binocular ...
Yunhui Li, Yunhang Yan, Xianchao Xiu, Zhonghua Miao   +3 more
doaj   +1 more source

Accurate Covariance Estimation for Pose Data From Iterative Closest Point Algorithm

Navigation, 2023
One of the fundamental problems of robotics and navigation is the estimation of the relative pose of an external object with respect to the observer. A common method for computing the relative pose is the iterative closest point (ICP) algorithm, where a ...
Rick H. Yuan, Clark N. Taylor, Scott L. Nykl   +2 more
doaj   +1 more source

Central Nervous System Neuroblastoma, FOXR2‐Activated: A Pooled Analysis of Published Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) neuroblastoma, FOXR2‐activated, is a recently recognized entity in the WHO CNS5 classification, defined by activation of the FOXR2 transcription factor and unique histopathological features. This review synthesizes available literature and pooled clinical data, providing insight into demographics ...
Sudarshawn Damodharan, Mohamed S. Abdelbaki   +1 more
wiley   +1 more source