Computing Illumination for Mixed Reality Applications

                     Vlastimil Havran

                 Presents a lecture for

http://cmp.felk.cvut.cz/cmp/courses/XE33PVR/Curr/Lectures/schedule.xhtml

Abstract:

This talk consists of three parts. In the first part we give short
introduction to augmented virtual reality including key principles and
applications. In the second part we recall the methods used to compute
illumination of artificial objects to include them seamlessly with the
illumination of real world in the applications.

In the third part we present the results of our own. We present an
interactive system for fully dynamic scene lighting using captured
high dynamic range (HDR) video environment maps. The key component of
our system is an algorithm for efficient decomposition of HDR video
environment map captured over hemisphere into a set of representative
directional light sources, which can be used for the direct lighting
computation with shadows using graphics hardware. We demonstrate the
use of our system in a mixed reality application in which real and
synthetic objects are illuminated by consistent lighting at
interactive framerates.