An appearance of depth is provided by displaying a single-perspective video to the left and right eyes of a viewer, with a time offset therebetween. Objects moving relative to the background exhibit a spatial displacement between left and right eyes due to the time offset. Providing the video with that spatial displacement yields a parallax between left and right eyes for the moving objects, providing depth cues to the viewer. These depth cues are based on differences in time (two asynchronous views of the same scene), as distinct from stereo based on differences in space (two simultaneous views from different perspectives). However, “temporal stereo” may be visually fused by viewers similarly to spatial stereo, without requiring special training or effort. Also, even if depth cues are not comprehensive, continuous, and/or spatially accurate, the depth cues still may suggest depth within the scene.
METHOD AND APPARATUS FOR TIME-BASED STEREO DISPLAY OF IMAGES AND VIDEO