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Abstract:
The aim of this work is to render high-quality views of a dynamic scene
from novel viewpoints in real-time. An online system available at our institute
computes the visual hull as a geometry proxy to guide the rendering at
interactive rates. Because only a sparse set of cameras distributed around the
scene is used to record the scene, only an coarse model of the scene geometry
can be recovered. To alleviate this problem, we render textured billboards
defined by the voxel model of the visual hull, preserving details in the source
images while
achieving excellent performance. By exploiting multi-texturing capabilities of
modern graphics hardware, real-time frame rates are attained. Our algorithm can
be used as part of an inexpensive system to display 3D-videos, or ultimately
even in live 3D-television. The user is able to watch the scene from an
arbitrary viewpoint chosen interactively.
