Results 81 to 90 of about 21,221 (284)
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 +28 more
core +1 more source
Optical Flow Enables Hand Tracking With EyeGlove Low‐Cost Cameras in Confined Environments
Advanced Intelligent Systems, EarlyView.A cost‐effective (<£150) hand‐wearable stereo vision system, EyeGlove, is proposed to support visual inspection in confined environments. The system integrates disjointed low‐cost cameras to enable dexterous camera manipulation and wearable display unit for real‐time interaction.
Erhui Sun +3 more
wiley +1 more source
, 2017 X-ray tomography has been studied in various fields. Although a great deal of effort has been directed at reconstructing the projection image set from a rigid-type specimen, little attention has been addressed to the reconstruction of projected images ...
Jun, Kyungtaek, Kim, Dongwook
core +2 more sources
An efficient visual fiducial localisation system [PDF]
, 2017 With use cases that range from external localisation of single robots or robotic swarms to self-localisation in marker-augmented environments and simplifying perception by tagging objects in a robot's surrounding, fiducial markers have a wide field of ...
Afolabi D. +8 more
core +1 more source
Collaborative Visual Localization for Modular Self‐Reconfigurable Robots
Advanced Intelligent Systems, EarlyView.Relative localization in modular self‐reconfigurable robots is challenged by hardware limitations, constrained fields of view, and sensor faults. This paper, based on the SnailBot platform, presents a vision‐based collaborative localization method that combines ArUco markers with learning‐based algorithms to enable robust pose estimation from ...
Guanqi Liang +4 more
wiley +1 more source
Journal of Marine Science and EngineeringTraditional 2D optical markers degrade quickly in underwater applications due to sediment accumulation and marine biofouling, becoming undetectable within weeks.
Alaaeddine Chaarani +4 more
doaj +1 more source
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 +6 more
doaj +1 more source
Robot kinematic structure classification from time series of visual data
, 2019 In this paper we present a novel algorithm to solve the robot kinematic structure identification problem. Given a time series of data, typically obtained processing a set of visual observations, the proposed approach identifies the ordered sequence of ...
Carli, Ruggero +4 more
core +1 more source
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 +7 more
openaire +3 more sources