Polarized 3D: High-Quality Depth Sensing With Polarization Cues

author: Achuta Kadambi, MIT Media Lab, School of Architecture + Planning, Massachusetts Institute of Technology, MIT
published: Feb. 10, 2016,   recorded: December 2015,   views: 2100
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Description

Coarse depth maps can be enhanced by using the shape information from polarization cues. We propose a framework to combine surface normals from polarization (here-after polarization normals) with an aligned depth map. Polarization normals have not been used for depth enhancement before. This is because polarization normals suffer from physics-based artifacts, such as azimuthal ambiguity, refractive distortion and fronto-parallel signal degradation. We propose a framework to overcome these key challenges, allowing the benefits of polarization to be used to enhance depth maps. Our results demonstrate improvement with respect to state-of-the-art 3D reconstruction techniques.

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