1. A light source tracking apparatus comprising: a single common aperture arranged to receive a plurality of incident light rays from a plurality of objects from multiple directions; a single light-redirecting element, for receiving the incident light rays from the plurality of objects and for providing transmitted light rays including transmitted light rays from a particular object of the plurality of objects to form images of the plurality of objects, the images of the plurality of objects being distorted at angles indicative of the multiple directions of the incident light rays from the plurality of objects depending on an orientation at which the incident light rays originated from the plurality of objects; a single imaging sensor arranged to capture the images of the plurality of objects from the multiple directions of the transmitted light rays from the light-redirecting element; and an image processor arranged to receive the images of the plurality of objects and to separate an image from the images of the plurality of objects for a particular object based on distortion of transmitted light rays associated with the particular object to generate as an output the image of the particular object.