Results 71 to 80 of about 30,575 (187)

TagSLAM: Robust SLAM with Fiducial Markers

, 2019
TagSLAM provides a convenient, flexible, and robust way of performing Simultaneous Localization and Mapping (SLAM) with AprilTag fiducial markers. By leveraging a few simple abstractions (bodies, tags, cameras), TagSLAM provides a front end to the GTSAM factor graph optimizer that makes it possible to rapidly design a range of experiments that are ...
Pfrommer, Bernd, Daniilidis, Kostas
openaire   +2 more sources

Fiducial markers configuration optimization in image-guided surgery

Bio-Medical Materials and Engineering, 2014
The rigid registration is a key step of Image Guided Surgery (IGS), and the point-pair method is the main way used for registration. However the configuration of fiducial points has a great influence on the registration accuracy at the target point.
Nan, Bao, Yu, Chen, Yong, Yue, Hong, Li, Zhiming, Cui, Jinfeng, Zhuang, Shi, Tian, Yan, Kang   +7 more
openaire   +3 more sources

Endoscopic gold fiducial marker placement into the bladder wall to optimize radiotherapy targeting for bladder-preserving management of muscle-invasive bladder cancer: feasibility and initial outcomes.

PLoS ONE, 2014
Background and purposeBladder radiotherapy is a management option for carefully selected patients with muscle-invasive bladder cancer. However, the inability to visualize the tumor site during treatment and normal bladder movement limits targeting ...
Maurice M Garcia, Alexander R Gottschalk, Jonathan Brajtbord, Badrinath R Konety, Maxwell V Meng, Mack Roach, Peter R Carroll   +6 more
doaj   +1 more source

Dosimetric validation of a magnetic resonance image gated radiotherapy system using a motion phantom and radiochromic film. [PDF]

, 2017
PurposeMagnetic resonance image (MRI) guided radiotherapy enables gating directly on the target position. We present an evaluation of an MRI-guided radiotherapy system's gating performance using an MRI-compatible respiratory motion phantom and ...
Berbeco, Brady, Chuang, Fayad, Freislederer, Garibaldi, Giraud, Jin, Keall, Kini, Koch, Lewis, Low, Malinowski, Nioutsikou, Ozhasoglu, Sanders, Seppenwoolde, Shiinoki, Shirato, Smith, Tacke, Voort, Wagman, Wiersma, Wojcieszynski, Wunderink, Yoganathan, Yousefi   +28 more
core   +1 more source

Real-Time Self-Positioning with the Zero Moment Point Model and Enhanced Position Accuracy Using Fiducial Markers

Computers
Many companies are turning their attention to digitizing the work efficiency of employees in large factories and warehouses, and the demand for measuring individual self-location indoors is increasing.
Kunihiro Ogata, Hideyuki Tanaka
doaj   +1 more source

Successful treatment of a T4 lung tumor with vertebral body invasion using fiducial markers in the thoracic spine for image-guided radiation therapy: A case report

Journal of Medical Case Reports, 2011
Introduction Paravertebral and paraspinal tumors pose a significant challenge in radiation therapy because of the radiation sensitivity of the spinal cord and the need for maximum treatment accuracy. Implantation of fiducial markers into vertebral bodies
Solin Lawrence J, Handal John, Jain Anudh K   +2 more
doaj   +1 more source

EUS-guided fiducial placement for pancreatobiliary malignancies: safety, infection risk, and use of peri-procedural antibiotics

Endoscopy International Open, 2020
Background and study aims Chemoradiation with stereotactic body radiation therapy (SBRT) is increasingly being used for optimal treatment of locally advanced pancreatobiliary cancers.
Madhuri Chandnani, Mir Fahad Faisal, Jeremy Glissen-Brown, Mandeep Sawhney, Douglas Pleskow, Jonah Cohen, Tyler M. Berzin   +6 more
doaj   +1 more source

Autoencoder-Driven Fiducial Landmark Identification in 3D Brain MRI for Neuroimaging Alignment

IEEE Access
Accurate identification of fiducial markers, such as the left pre-auricle (LPA), right pre-auricle (RPA), and nasion, is critical for head localization, source reconstruction, anatomical alignment, and ensuring reproducibility in functional and ...
G. Deepali, H. Anitha, B. P. Swathi, M. V. Suhas   +3 more
doaj   +1 more source

Robust Tracking Through the Design of High Quality Fiducial Markers: An Optimization Tool for ARToolKit

IEEE Access, 2018
Fiducial markers are images or landmarks placed in real environment, typically used for pose estimation and camera tracking. Reliable fiducials are strongly desired for many augmented reality (AR) applications, but currently there is no systematic method
Dawar Khan, Sehat Ullah, Dong-Ming Yan, Ihsan Rabbi, Paul Richard, Thuong Hoang, Mark Billinghurst, Xiaopeng Zhang   +7 more
doaj   +1 more source

Robot Autonomy for Surgery

, 2017
Autonomous surgery involves having surgical tasks performed by a robot operating under its own will, with partial or no human involvement. There are several important advantages of automation in surgery, which include increasing precision of care due to ...
Das, Nikhil, Yip, Michael
core   +1 more source