SPIDeRS: Structured Polarization for Invisible Depth and Reflectance Sensing

https://vision.ist.i.kyoto-u.ac.jp/ RGB images AoLPs Depth map Normal map Relighting Figure 1 . We propose structured polarization, a novel invisible 3D sensing method using polarized light with per-pixel modulation of the angle of linear polarization. The method enables completely stealth measurement of 3D shape, surface normals, and reflectance.