Results 11 to 20 of about 21,221 (284)
STag: A stable fiducial marker system [PDF]
Image 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 +4 more sources
Reattachable fiducial skin marker for automatic multimodality registration
International Journal of Computer Assisted Radiology and Surgery, 2022 Abstract Purpose Fusing image information has become increasingly important for optimal diagnosis and treatment of the patient. Despite intensive research towards markerless registration approaches, fiducial marker-based methods remain the default choice for a wide range of applications in clinical practice.
Benjamin J. Mittmann +6 more
openaire +4 more sources
Tape-Shaped, Multiscale, and Continuous-Readable Fiducial Marker for Indoor Navigation and Localization Systems [PDF]
SensorsThe present study proposes a fiducial marker for location systems that uses computer vision. The marker employs a set of tape-shaped markers that facilitate their positioning in the environment, allowing continuous reading to cover the entire perimeter ...
Benedito S. R. Neto +3 more
doaj +2 more sources
Endoscopic Ultrasound–Guided Fiducial Placement for Stereotactic Body Radiation Therapy in Pancreatic Malignancy [PDF]
Clinical 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
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 +1 more source
Risks and Benefits of Fiducial Marker Placement in Tumor Lesions for Robotic Radiosurgery: Technical Outcomes of 357 Implantations. [PDF]
Cancers (Basel), 2021 Kord M +9 more
europepmc +2 more sources
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 +1 more source
Intensity Image-Based LiDAR Fiducial Marker System
IEEE Robotics and Automation Letters, 2022 8 ...
Yibo Liu, Hunter Schofield, Jinjun Shan
openaire +2 more sources
Fiducial marker guided prostate radiotherapy: a review [PDF]
The 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
Fiducial Objects: Custom Design and Evaluation
Sensors, 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