Figure 2

Construction of all-focused images. The original Lytro files were computationally extracted to output a series of images with a range of focus settings (A) and corresponding depths for each position in the image (B, depth map). Even with just a single Lytro snapshot (which contains 12 frames), an all-focused (C) image and a 3D model (Figure 3) can be constructed by combining the information from A and B. There are 3 all-focused images on panel C. They are derived from 3 single Lytro shots at different horizontal angles of the same KS lesion (<1 cm). Only one set of the serial images are shown (for the picture on the middle) in panel A.