Hardware-accelerated jaggy-free visual hulls with silhouette maps

Authors:
Chulhan Lee;Junho Cho;Kyoungsu Oh
Affiliations:
University of Soongsil, Korea;University of Soongsil, Korea;University of Soongsil, Korea
Venue:
Proceedings of the ACM symposium on Virtual reality software and technology
Year:
2006

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Abstract

Visual hull is intersection of cones made by back-projections of reference images. We introduce a real-time rendering of jaggy-free visual hull rendering method on programmable graphics hardware. By using texture mapping approach, we render a visual hull quickly. At each silhouette pixel, we produce jaggy-free images using silhouette information. Our implementation demonstrate high-quality image in real-time. The complexity of our algorithm is O(N), where N is the number of reference images. Thus the examples in this paper are rendered over one hundred of frames per second without jaggies.