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GPU-based optimization of a free-viewpoint video system

We present a method for optimizing the reconstruction and rendering of 3D objects from multiple images utilizing consumer-level graphics hardware. We accelerate visual hull reconstruction by parallelizing a shape-from-silhouette algorithm. Rendering is optimized through the application of geometry shaders to generate billboarding microfacets textured with captured images. Experimental results show that the resulting system is significantly more efficient than a purely CPU-based approach, while maintaining graphical quality.