1. A camera array, comprising: a plurality of imagers, where each imager comprises: optics comprising at least one lens element and at least one aperture that form an optical channel; and an sensor comprising a two dimensional array of pixels and control circuitry for controlling imaging parameters; wherein the plurality of imagers are configured to capture different images of the same scene; wherein the images captured by the plurality of imagers include different occlusions sets, where the occlusion set of a given imager is the portion of a scene visible to a baseline imager in the plurality of imagers that is occluded from the view of the given imager; and wherein the plurality of imagers includes a first imager that captures pixels around an edge of a foreground object that is visible to the baseline imager and is in the occlusion set of a second of the plurality of imagers that has the same imaging characteristics as the first imager.