Blurry-Edges: Photon-Limited Depth Estimation from Defocused Boundaries

Figure 1. Overview. (Left) Blurry-Edges representation parametrically models an image patch's color, boundary positions, and boundary smoothness. Object depths can be analytically calculated from the smoothness of corresponding boundaries in a pair of differently defocused images. (Right) Compared to a variety of state-of-the-art depth from defocus algorithms [8, 23, 32, 38, 44, 47] , our method generates sparse or dense depth maps with the lowest depth estimation errors from photon-limited, noisy images.