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Antialiasing for automultiscopic 3D displays

Introduction For more than a century, the display of threedimensional images has inspired the imagination and ingenuity of engineers and inventors. Automultiscopic displays offer uninhibited viewing (i.e., without glasses) of high-resolution stereoscopic images from arbitrary positions. These displays consist of viewdependent pixels that reveal a different color to the observer based on the viewing angle. View-dependent pixels can be implemented using conventional high-resolution displays and parallax-barriers (Figure 1, left), or lenticular sheets. Although the optical principles of multiview auto-stereoscopy have been known for over a century, it is only recently that displays with increased resolution have made them practical. As a result, 3D television is getting renewed attention with Grundig’s announcement that they will acquire, transmit, and display 3D content during the 2006 soccer world cup. However, automultiscopic displays today have several major drawbacks. First, they are plagued by disturbing aliasing artifacts. Second, the acquisition of artifact-free 3D content is challenging. Photographers, videographers, and professionals in the broadcast and movie industry are unfamiliar with the complex setup required to record 3D content. There are currently no guidelines for multicamera parameters, placement, and post-production processing.