Large-Scale Indoor Camera Positioning Using Fiducial Markers [PDF]
SensorsEstimating the pose of a large set of fixed indoor cameras is a requirement for certain applications in augmented reality, autonomous navigation, video surveillance, and logistics.
Pablo García-Ruiz +4 more
doaj +7 more sources
Fiducial Markers Allow Accurate and Reproducible Delivery of Liver Stereotactic Body Radiation Therapy [PDF]
Current Oncology, 2023 Fiducial markers are utilized for image guided radiotherapy (IGRT) alignment during the delivery of liver stereotactic body radiosurgery (SBRT). There are limited data demonstrating the impact of matching fiducials on the accuracy of liver SBRT.
Marina Moskalenko +7 more
doaj +2 more sources
Statistical evaluation of the effectiveness of dual amplitude-gated stereotactic body radiotherapy using fiducial markers and lung volume [PDF]
Physics and Imaging in Radiation Oncology, 2022 Background and purpose: The low tracking accuracy of lung stereotactic body radiotherapy (SBRT) risks reduced treatment efficacy. We used four-dimensional computed tomography (4DCT) images to determine the correlation between changes in fiducial marker ...
Yoshinori Tanabe, Hidekazu Tanaka
doaj +2 more sources
Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation [PDF]
Sensors, 2023 Planar fiducial markers are commonly used to estimate a pose of a camera relative to the marker. This information can be combined with other sensor data to provide a global or local position estimate of the system in the environment using a state ...
Roman Adámek +5 more
doaj +2 more sources
Patient-specific respiratory motion management using lung tumors vs fiducial markers for real-time tumor-tracking stereotactic body radiotherapy [PDF]
Physics and Imaging in Radiation Oncology, 2023 Background and purpose: In real-time lung tumor-tracking stereotactic body radiotherapy (SBRT), tracking accuracy is related to radiotherapy efficacy. This study aimed to evaluate the respiratory movement relationship between a lung tumor and a fiducial ...
Yoshinori Tanabe +4 more
doaj +2 more sources
Online adaptive radiotherapy for bladder cancer using a simultaneous integrated boost and fiducial markers [PDF]
Radiation Oncology, 2023 Purpose The aim was to assess the feasibility of online adaptive radiotherapy (oART) for bladder cancer using a focal boost by focusing on the quality of the online treatment plan and automatic target delineation, duration of the workflow and performance
Sana Azzarouali +10 more
doaj +2 more sources
Cyberknife Radiosurgery for Prostate Cancer after Abdominoperineal Resection (CYRANO): The Combined Computer Tomography and Electromagnetic Navigation Guided Transperineal Fiducial Markers Implantation Technique [PDF]
Current Oncology, 2023 In this technical development report, we present the strategic placement of fiducial markers within the prostate under the guidance of computed tomography (CT) and electromagnetic navigation (EMN) for the delivery of ultra-hypofractionated cyberknife (CK)
Andrea Vavassori +14 more
doaj +2 more sources
Order type dataset analysis for fiducial markers
Data in Brief, 2018 Order Type (OT) describes a point set avoiding the use of metric information. We show that OT is a descriptor which is invariant to Euclidean geometric transformations, change of scale and perspective projection. In this paper we provide the data related
Heriberto Cruz Hernández +1 more
doaj +3 more sources
Facial and mandibular landmark tracking with habitual head posture estimation using linear and fiducial markers [PDF]
Healthcare Technology LettersThis study compared the accuracy of facial landmark measurements using deep learning‐based fiducial marker (FM) and arbitrary width reference (AWR) approaches. It quantitatively analysed mandibular hard and soft tissue lateral excursions and head tilting
Farhan Hasin Saad +6 more
doaj +2 more sources
Enhancement of RGB-D Image Alignment Using Fiducial Markers [PDF]
Sensors, 2020 Three-dimensional (3D) reconstruction methods generate a 3D textured model from the combination of data from several captures. As such, the geometrical transformations between these captures are required.
Tiago Madeira +2 more
doaj +2 more sources