cast shadow removal using time and exposure

Ray Casting visible surfaces of objects are found by throwing (or casting) rays of light from the viewer into the scene Ray Tracing Extension to Ray casting Recursively cast rays from the points of intersection

We consider the source localization problem using time-difference-of-arrival (TDOA) measurements in sensor networks. The maximum likelihood (ML) estimation of the source location can be cast as a nonlinear/nonconvex optimization problem,