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We present an approach to reconstruct 3D fine-scale surface models for non-Lambertian objects from multi-view multi-illumination image sets. Unlike most previous work in photometric stereo, this approach works for general lighting conditions, i.e. natural outdoor illumination. Our method begins with a raw 3D model reconstructed from available multi-view stereo techniques. Considering the sparse characteristics...
We propose a method to obtain a complete and accurate 3D model from multiview images captured under a variety of unknown illuminations. Based on recent results showing that for Lambertian objects, general illumination can be approximated well using low-order spherical harmonics, we develop a robust alternating approach to recover surface normals. Surface normals are initialized using a multi-illumination...
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