Fig. 3. Indoor imaging of a static scene.
a Photograph of the metasurface camera. b Photograph of the target scene consisting of three pieces of different materials (paper, iron, and ceramic) located at different axial depths. c Raw image-pair captured by the metasurface camera. d Decoded all-in-focus polarization image pair Ix and Iy. e Polarization contrast of the scene, defined as Ix/Iy, which clearly distinct metallic and non-metallic materials. f Comparison of the calculated depth to the ground truth for the scene shown here and an alternative scene as shown in Supplementary Section 5. g Retrieved depth map of the scene, with a normalized mean absolute error (Δzobj/zobj) of only 0.37%.