Concave Shape Reconstruction from Volume Intersection and Shading

Abstract

Volume intersection has become popular as a method for reconstructing a 3D occluded object using multi-viewpoint cameras. This method however cannot reconstruct concave objects or objects that have holes in them. In this presentation, we propose a method to overcome this weakness by combining the volume intersection method with shape from shading and light direction estimation.We confirmed that by dividing the reconstruction into concave and convex parts of object, the whole object shape is reconstructed.