Photogeometric Scene Flow for High-Detail Dynamic 3D Reconstruction


Paulo Gotardo (Disney Research Zurich)
Tomas Simon (Carnegie Mellon University)
Yaser Sheikh (Carnegie Mellon University)
Iain Matthews (Disney Research Pittsburgh)

International Conference on Computer Vision (ICCV) 2015

December 11, 2015

Photogeometric Scene Flow for High-Detail Dynamic 3D Reconstruction-Image

Photometric stereo (PS) is an established technique for high-detail reconstruction of 3D geometry and appearance. To correct for surface integration errors, PS is often combined with multiview stereo (MVS). With dynamic objects, PS reconstruction also faces the problem of computing optical flow (OF) for image alignment under rapid changes in illumination. Current PS methods typically compute optical flow and MVS as independent stages, each one with its own limitations and errors introduced by early regularization. In contrast, scene flow methods estimate geometry and motion but lack the fine detail from PS. This paper proposes photogeometric scene flow (PGSF) for high-quality dynamic 3D reconstruction. PGSF performs PS, OF, and MVS simultaneously. It is based on two key observations: (i) while image alignment improves PS, PS allows for surfaces to be relit to improve alignment; (ii) PS provides surface gradients that render the smoothness term in MVS unnecessary, leading to truly data-driven, continuous depth estimates. This synergy is demonstrated in the quality of the resulting RGB appearance, 3D geometry, and 3D motion.

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Download additional file "Photogeometric Scene Flow for High-Detail Dynamic 3D Reconstruction-Supplementary Material"
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Download additional file "ICCV 2015 Poster"
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