Abstract: One embodiment provides a method for three-dimensional imaging by determining distances of objects within scenes, the method including: emitting a light onto an object within a scene for a predetermined length of time; receiving a plurality of reflections of the light from the object, wherein each of the plurality of reflections is received for a predetermined length of time less than an exposure time for a frame of the scene, wherein the photon detector generates an electrical signal; determining depth location information of at least a portion of the object within the scene corresponding to the given of the electrical signals; and generating, from the depth location information of portions of the object within the scene, a three-dimensional image for the frame of the scene.