We propose a seeding particle-based color-to-depth calibration methodology for three-dimensional color particle tracking velocimetry (3D PTV) using single camera and volumetric rainbow gradient illumination. The use of sheet-color illumination from liquid crystal display projector enables in situ calibration, namely the relationships particles seeded fluid are determined without inserting any e...

PURPOSE The first real-time-MRI-guided radiotherapy system has been installed in a clinic and it is being evaluated. Presence of magnetic field (MF) during radiation output calibration may have implications on ionization measurements and there is a possibility that standard calibration protocols may not be suitable for dose measurements for such devices. In this study, we evaluated whether a st...