Results 21 to 30 of about 28,932 (246)

Research on Multi-camera Multi-target Tracking Method Based on Hierarchical Relational Model of Trajectory Tree

Jisuanji kexue yu tansuo, 2020
To improve the accuracy of camera target tracking, a multi-camera multi-target tracking method based on multi-hypothesis tracking (MHT) framework using hierarchical relation model of trajectory tree is proposed.
LIU Guanqun, LI Ting
doaj   +1 more source

Using Three-Dimensional Lorenz Scatter Plots to Detect Patients with Atrioventricular Node Double Path Caused by Interpolated Ventricular Premature Systoles: A Case Study

Cardiovascular Innovations and Applications, 2021
A series of related electrophysiology phenomena can be caused by the occurrence of interpolated ventricular premature contraction. In our recent three-dimensional Lorenz R-R scatter plot research, we found that atrioventricular ...
Li Jingxiu, Zhang Fujun, Wei Xijin, Peng Ding   +3 more
doaj   +1 more source

3D object tracker for sports events

Российский технологический журнал, 2022
Objectives. Sports events are currently among the most promising areas for the application of tracking systems. In most cases, such systems are designed to track moving objects in a two-dimensional plane, e.g., players on the field, as well as to ...
M. A. Volkova, M. P. Romanov, A. M. Bychkov   +2 more
doaj   +1 more source

Towards Tracking of Deep Brain Stimulation Electrodes Using an Integrated Magnetometer

Sensors, 2021
This paper presents a tracking system using magnetometers, possibly integrable in a deep brain stimulation (DBS) electrode. DBS is a treatment for movement disorders where the position of the implant is of prime importance.
Thomas Quirin, Corentin Féry, Dorian Vogel, Céline Vergne, Mathieu Sarracanie, Najat Salameh, Morgan Madec, Simone Hemm, Luc Hébrard, Joris Pascal   +9 more
doaj   +1 more source

Generation of Achievable Three-Dimensional Trajectories for Autonomous Wheeled Vehicles via Tracking Differentiators

Algorithms, 2023
Planning an achievable trajectory for a mobile robot usually consists of two steps: (i) finding a path in the form of a sequence of discrete waypoints and (ii) transforming this sequence into a continuous and smooth curve. To solve the second problem, this paper proposes algorithms for automatic dynamic smoothing of the primary path using a tracking ...
Svetlana A. Krasnova, Julia G. Kokunko, Sergey A. Kochetkov, Victor A. Utkin   +3 more
openaire   +2 more sources

Multi-UAV Trajectory Planning during Cooperative Tracking Based on a Fusion Algorithm Integrating MPC and Standoff

Drones, 2023
In this paper, an intelligent algorithm integrating model predictive control and Standoff algorithm is proposed to solve trajectory planning that UAVs may face while tracking a moving target cooperatively in a complex three-dimensional environment.
Bo Li, Chao Song, Shuangxia Bai, Jingyi Huang, Rui Ma, Kaifang Wan, Evgeny Neretin   +6 more
doaj   +1 more source

A Moving Frame Trajectory Tracking Method of a Flying-Wing UAV Using the Differential Geometry

International Journal of Aerospace Engineering, 2016
The problem of UAV trajectory tracking is a difficult issue for scholars and engineers, especially when the target curve is a complex curve in the three-dimensional space.
Yi Zhu, Xin Chen, Chuntao Li
doaj   +1 more source

Robust Control Strategy of Acoustic Micro Robots Based on Fuzzy System

Micromachines
This study presents a robust control strategy for acoustic micro robots utilizing a novel interval type-three fuzzy system. Micro robots driven by acoustic forces face significant challenges in fluid environments due to complex nonlinearities ...
Junjie Dong, Xingguang Duan
doaj   +1 more source

Model-free control of a quadrotor using adaptive proportional derivative-sliding mode control and robust integral of the signum of the error

International Journal of Advanced Robotic Systems, 2018
In this article, a robust model-free trajectory tracking control strategy is developed for a quadrotor in the presence of external disturbances. The proposed strategy has an outer-inner-loop control structure.
Zhi Li, Xin Ma, Yibin Li
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source