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Global Depth from Epipolar Volumes - A General Framework for Reconstructing also Non-Lambertian Surfaces

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Introducing Epipolar Volumes in the context of the correspondence finding problem in depth reconstruction has several advantages. One is the elegant incorporation of prior knowledge about the scene or the surface reflection properties into the reconstruction process. The proposed framework in conjunction with graph cut optimization is able to reconstruct also highly specular surfaces. The use of prior knowledge in general opens up new ways to reconstruct complicated surfaces and scenes impossible with previous methods. Another advantage is improved occlusion handling. Pixels that are partly occluded contribute to the reconstruction results. The proposed shifting of some of the computation to graphics hardware (GPU) results in a significant speed improvement compared to pure CPU-based implementations.

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T. Stich, A. Tevs, M. Magnor, "Global Depth from Epipolar Volumes - A General Framework for Reconstructing Non-Lambertian Surfaces", Third International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT), pages 1-8, 2006.