A Compressive Light Field Projection System

作者：Hirsch Matthew^*; Wetzstein Gordon; Raskar Ramesh

来源：ACM Transactions on Graphics, 2014, 33(4): 58.

DOI：10.1145/2601097.2601144

• compressive displays
• light fields

For about a century, researchers and experimentalists have strived to bring glasses-free 3D experiences to the big screen. Much progress has been made and light field projection systems are now commercially available. Unfortunately, available display systems usually employ dozens of devices making such setups costly, energy inefficient, and bulky. We present a compressive approach to light field synthesis with projection devices. For this purpose, we propose a novel, passive screen design that is inspired by angle-expanding Keplerian telescopes. Combined with high-speed light field projection and nonnegative light field factorization, we demonstrate that compressive light field projection is possible with a single device. We build a prototype light field projector and angle-expanding screen from scratch, evaluate the system in simulation, present a variety of results, and demonstrate that the projector can alternatively achieve super-resolved and high dynamic range 2D image display when used with a conventional screen.

• 出版日期2014-7
• 单位MIT