1. A method implemented at least in part by a computing system, the method comprising: receiving a plenoptic off-angle iris image depicting an iris with an off-angle gaze; from the plenoptic off-angle iris image depicting an iris with an off-angle gaze, creating a plurality of reconstructed images at different synthetic focal depths, wherein the plurality of reconstructed images comprise different in-focus regions of the iris; and stitching together the different in-focus regions of the iris from the plurality of reconstructed images, wherein the stitching generates a fully focused image of the iris.