Results 41 to 50 of about 1,070 (216)

Relative Pose Estimation For Stereo Rolling Shutter Cameras [PDF]

2020 IEEE International Conference on Image Processing (ICIP), 2020
In this paper, we present a novel linear algorithm to estimate the 6 DoF relative pose from consecutive frames of stereo rolling shutter (RS) cameras. Our method is derived based on the assumption that stereo cameras undergo motion with constant velocity around the center of the baseline, which needs 9 pairs of correspondences on both left and right ...
Ke Wang, Bin Fan 0002, Yuchao Dai
openaire   +2 more sources

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen, Mark Paine, Soohyun Lee, Amir Fazlollahi, Baibin (Ben) Wang, John D. O'Sullivan, Peter J. Nestor   +6 more
wiley   +1 more source

Improving Gait Analysis Techniques with Markerless Pose Estimation Based on Smartphone Location

Bioengineering
Marker-based 3D motion capture systems, widely used for gait analysis, are accurate but have disadvantages such as cost and accessibility. Whereas markerless pose estimation has emerged as a convenient and cost-effective alternative for gait analysis ...
Junhyuk Yang, Kiwon Park
doaj   +1 more source

Sampled visual feedback pose estimation and regulation based on camera frame rates

SICE Journal of Control, Measurement, and System Integration, 2023
This paper presents visual feedback 3D pose estimation/regulation methodologies in the sampled data setting by camera frame rates. Vision-based estimation/control problems have been studied by a number of research groups.
Tatsuya Ibuki, Satoshi Nakano, Shunsuke Shigaki, Takeshi Hatanaka   +3 more
doaj   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

Advanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim, Sohee John Yoon, Yong‐Lae Park   +2 more
wiley   +1 more source

Relative Pose Estimation of Non-Cooperative Space Targets Using a TOF Camera

Remote Sensing, 2022
It is difficult to determine the accurate pose of non-cooperative space targets in on-orbit servicing (OOS). The visual camera is easily affected by the extreme light environment in space, and the scanning lidar will have motion distortion when the ...
Dianqi Sun, Liang Hu, Huixian Duan, Haodong Pei   +3 more
doaj   +1 more source

Hybrid Camera Pose Estimation With Online Partitioning for SLAM [PDF]

IEEE Robotics and Automation Letters, 2020
This paper presents a hybrid real-time camera pose estimation framework with a novel partitioning scheme and introduces motion averaging to monocular Simultaneous Localization and Mapping (SLAM) systems. Breaking through the limitations of fixed-size temporal partitioning in many conventional SLAM pipelines, our approach significantly improves the ...
Xinyi Li 0004, Haibin Ling
openaire   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Object-Centric Seamless Pose Estimation in Multi-Object Scenes by Scale Alignment of Ray Diffusion and Iterative Closest Point

Applied Sciences
Robust estimation of camera trajectories from unconstrained image sequences remains a fundamental problem in computer vision and robotics. Recently, a diffusion-based camera tracking network has shown strong performance in sparse-view and single-object ...
YeonChang Jeong, Dong-Uk Seo, Kwanwoo Park, Soon-Yong Park   +3 more
doaj   +1 more source

Automatic Pose Estimation of Uncalibrated Multi-View Images Based on a Planar Object with a Predefined Contour Model

ISPRS International Journal of Geo-Information, 2016
We have presented a framework to obtain camera pose (i.e., position and orientation in the 3D space) with real scale information of the uncalibrated multi-view images and the intrinsic camera parameters automatically.
Cailin Li, Langming Zhou, Wenhe Chen
doaj   +1 more source