Results 31 to 40 of about 7,438,644 (406)

Effect of different noise reduction techniques and template matching parameters on markerless tumor tracking using dual‐energy imaging

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To evaluate the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking (MTT) using dual‐energy (DE) imaging. Methods A Varian TrueBeam linear accelerator was used to acquire a series of alternating 60 and 120 kVp images (over a 180° arc) using fast kV switching, on ...
Mandeep Kaur   +9 more
wiley   +1 more source

A Dynamic and Adaptive Selection Radar Tracking Method Based on Information Entropy

open access: yesLeida xuebao, 2017
Nowadays, the battlefield environment has become much more complex and variable. This paper presents a quantitative method and lower bound for the amount of target information acquired from multiple radar observations to adaptively and dynamically ...
Ge Jianjun, Li Chunxia
doaj   +1 more source

Multiple Target Tracking in Wireless Sensor Networks Based on Sensor Grouping and Hybrid Iterative-Heuristic Optimization [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering, 2023
A novel hybrid method for tracking multiple indistinguishable maneuvering targets using a wireless sensor network is introduced in this paper. The problem of tracking the location of targets is formulated as a Maximum Likelihood Estimation.
M. H. Adhami, R. Ghazizadeh
doaj  

A scale-adaptive target tracking method for coal mine underground based on cloud-edge collaboration

open access: yesGong-kuang zidonghua, 2023
The moving targets in coal mine underground monitoring videos often have significant scale changes and deformations. This results in low accuracy of target tracking algorithms based on computer vision.
MU Qi, HAN Jiajia, ZHANG Han, LI Zhanli
doaj   +1 more source

Accuracy of patient dose estimation in cone beam computed tomography in breast irradiation by size‐specific dose estimates with position correction

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract This study aims to investigate the effects of the position correction of size‐specific dose estimates (SSDE) on patient dose estimation in cone beam computed tomography (CBCT). The relationship between the phantom position and absorbed dose in the right breast was studied using optically stimulated luminescence dosimeters and a simulated human
Hiroyuki Ueno   +3 more
wiley   +1 more source

Multiperson Target Dynamic Tracking Method for Athlete Training Based on Wireless Body Area Network

open access: yesAdvances in Mathematical Physics, 2021
Aiming at the problems of large tracking error and long tracking time in traditional multiperson target dynamic tracking methods, a new method based on wireless body area network for athlete training multiperson target dynamic tracking is proposed. First,
Diandian Du
doaj   +1 more source

Computer-Vision-Based Vibration Tracking Using a Digital Camera: A Sparse-Optical-Flow-Based Target Tracking Method

open access: yesSensors, 2022
Computer-vision-based target tracking is a technology applied to a wide range of research areas, including structural vibration monitoring. However, current target tracking methods suffer from noise in digital image processing.
Guang-Yu Nie   +4 more
doaj   +1 more source

Correlation Filter of Multiple Candidates Match for Anti-Obscure Tracking in Unmanned Aerial Vehicle Scenario

open access: yesMathematics, 2022
Due to the complexity of Unmanned Aerial Vehicle (UAV) target tracking scenarios, tracking drift caused by target occlusion is common and has no suitable solution.
Zhen Chen   +4 more
doaj   +1 more source

Reproducible Evaluation of Pan-Tilt-Zoom Tracking [PDF]

open access: yes, 2015
Tracking with a Pan-Tilt-Zoom (PTZ) camera has been a research topic in computer vision for many years. However, it is very difficult to assess the progress that has been made on this topic because there is no standard evaluation methodology.
Bergevin, Robert   +5 more
core   +2 more sources

Linear multi-target IPF algorithm for automatic tracking [PDF]

open access: yesScientific Technical Review, 2016
The radar tracking applications perform single and multiple object detections from noise-corrupted signal. These detections are used as measurements for target tracking.
Radosavljević Zvonko   +2 more
doaj  

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