Accelerated Visual Hulls of Complex Objects Using Contribution Weights

The surface-based approaches modeling from silhouettes are a popular and useful topic. Intersecting operator of line segments is an essential and crucial operation in these approaches. It consists of two phases: intersecting operator in 2D and overlap testing of the set of line segments in real domain. The former has made considerable progresses while the latter remains insignificant status when there are complex objects in the scene. In order to accelerate the speed of reconstructing visual hulls, this paper addresses the problem and proposes a novel approach based on contribution weights which reflect viewing ray´s contributions to the visual hulls. Experimental results demonstrate that the novel approach can attain the promise.