2010/06/01 by Max Grosse, Gordon Wetzstein, Anselm Grundhöfer +1
Computer Science · Engineering · #Advanced Optical Imaging Technologies #Advanced Vision and Imaging #Image Processing Techniques and Applications
paper · doi:10.1145/1805964.1805966
openalex publication_date 2010/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/01
Coding a projector's aperture plane with adaptive patterns together with inverse filtering allow the depth-of-field of projected imagery to be increased. We present two prototypes and corresponding algorithms for static and programmable apertures. We also explain how these patterns can be computed at interactive rates, by taking into account the image content and limitations of the human visual system. Applications such as projector defocus compensation, high-quality projector depixelation, and increased temporal contrast of projected video sequences can be supported. Coded apertures are a step towards next-generation auto-iris projector lenses.