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

Authors:
  • AKAchuta Kadambi
    Achuta Kadambi
  • VTVage Taamazyan
    Vage Taamazyan
  • BSBoxin Shi
    Boxin Shi
  • RRRamesh Raskar
    Ramesh Raskar
Open Access
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Abstract
Coarse depth maps can be enhanced by using the shape information from polarization cues. We propose a framework to combine surface normals from polarization (hereafter 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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