Results 11 to 20 of about 30,575 (187)

Design, Detection, and Tracking of Customized Fiducial Markers

open access: yesIEEE Access, 2021
Fiducial markers such as QR codes, ArUco, and AprilTag have become very popular tools for labeling and camera positioning. They are robust and easy to detect, even in devices with low computing power. However, their industrial appearance deters their use
David Jurado-Rodriguez   +3 more
doaj   +3 more sources

Endoscopic Ultrasound–Guided Fiducial Placement for Stereotactic Body Radiation Therapy in Pancreatic Malignancy [PDF]

open access: yesClinical Endoscopy, 2021
Stereotactic body radiation therapy (SBRT) is an important treatment option for pancreatic cancer, which is known to be one of the malignancies with the worst prognosis. However, the high radiation doses delivered during SBRT may cause damage to adjacent
Seong-Hun Kim, Eun Ji Shin
doaj   +1 more source

Fiducial Objects: Custom Design and Evaluation

open access: yesSensors, 2023
Camera pose estimation is vital in fields like robotics, medical imaging, and augmented reality. Fiducial markers, specifically ArUco and Apriltag, are preferred for their efficiency.
Pablo García-Ruiz   +4 more
doaj   +1 more source

Impact of Fiducial Marker Placement Before Stereotactic Body Radiation Therapy on Clinical Outcomes in Patients With Pancreatic Cancer

open access: yesAdvances in Radiation Oncology, 2021
Purpose: Localized pancreatic cancer is commonly treated with stereotactic body radiation therapy (SBRT), which often requires the placement of fiducial markers. We compared the clinical outcomes of patients with and without fiducial markers. Methods and
Shalini Moningi, MD   +19 more
doaj   +1 more source

STag: A stable fiducial marker system [PDF]

open access: yesImage and Vision Computing, 2019
Fiducial markers provide better-defined features than the ones naturally available in the scene. For this reason, they are widely utilized in computer vision applications where reliable pose estimation is required. Factors such as imaging noise and subtle changes in illumination induce jitter on the estimated pose.
Benligiray, Burak   +2 more
openaire   +2 more sources

Intensity Image-Based LiDAR Fiducial Marker System

open access: yesIEEE Robotics and Automation Letters, 2022
8 ...
Yibo Liu, Hunter Schofield, Jinjun Shan
openaire   +2 more sources

Fiducial marker guided prostate radiotherapy: a review [PDF]

open access: yesThe British Journal of Radiology, 2016
Image-guided radiotherapy (IGRT) is an essential tool in the accurate delivery of modern radiotherapy techniques. Prostate radiotherapy positioned using skin marks or bony anatomy may be adequate for delivering a relatively homogeneous whole-pelvic radiotherapy dose, but these surrogates are not reliable when using reduced margins, dose escalation or ...
O'Neill, Angela GM   +3 more
openaire   +4 more sources

Accuracy and consistency of intensity-based deformable image registration in 4DCT for tumor motion estimation in liver radiotherapy planning.

open access: yesPLoS ONE, 2022
We investigate the accuracy of intensity-based deformable image registration (DIR) for tumor localization in liver stereotactic body radiotherapy (SBRT).
José D Tascón-Vidarte   +7 more
doaj   +1 more source

FM-track: a fiducial marker tracking software for studying cell mechanics in a three-dimensional environment [PDF]

open access: yes, 2020
Tracking the deformation of fiducial markers in the vicinity of living cells embedded in compliant synthetic or biological gels is a powerful means to study cell mechanics and mechanobiology in three-dimensional environments.
Khang, Alex   +3 more
core   +1 more source

Efficacy and safety of ultrasound-guided implantation of fiducial markers in the liver for stereotactic body radiation therapy. [PDF]

open access: yesPLoS ONE, 2017
Stereotactic body radiation therapy (SBRT) for the treatment of a malignancy in the liver requires the perilesional implantation of fiducial markers for lesion detection. The purpose of this study is to evaluate the efficacy and safety of ultrasound (US)
So Hyun Park   +7 more
doaj   +1 more source

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