Vadim Holodovsky (CS, Technion)
Tuesday, 12.4.2016, 11:30
To recover the three dimensional (3D) volumetric distribution
of matter in an object, images of the object are captured
from multiple directions and locations. Using these images, tomographic computations seek the distribution. In highly scattering media and constrained irradiance, tomography must explicitly account for off-axis scattering. Furthermore, the tomographic model and recovery must function when imaging is done in-situ, as occurs in medical imaging and ground-based atmospheric sensing. We formulate tomography that handles arbitrary orders of scattering, using a Monte-Carlo model. The model is highly parallelizable in our formulation. This can enable large scale rendering and recovery of volumetric scenes having a large number of variables. We solve stability and conditioning problems that stem from radiative transfer modeling in-situ.
This talk summarizes the M.Sc. research of the speaker under the supervision of Prof. Yoav Schechner.