Three-Dimensional Display Rendering Acceleration Using Occlusion Camera Reference Images

Volumetric three-dimensional (3-D) displays allow the user to explore a 3-D scene free of joysticks, keyboards, goggles, or trackers. For non-trivial scenes, computing and transferring a 3-D image to the display takes hundreds of seconds, which is a serious bottleneck for many applications. We propose to represent the 3-D scene with an occlusion camera reference image (OCRI). The OCRI is a compact scene representation that stores only and all scene samples that are visible from a viewing volume centered at a reference viewpoint. The OCRI enables computing and transferring the 3-D image an order of magnitude faster than when the entire scene is processed. The OCRI approach can be readily applied to several volumetric display technologies; we have tested the OCRI approach with good results on a volumetric display that creates a 3-D image by projecting 2-D scene slices onto a rotating screen.

Voicu Popescu, Paul Rosen, and Daniel G Aliaga. Three-Dimensional Display Rendering Acceleration Using Occlusion Camera Reference Images. IEEE/OSD Journal of Display Technology, 2006.

@article{popescu2006three,
  title = {Three-Dimensional Display Rendering Acceleration Using Occlusion Camera
    Reference Images},
  author = {Popescu, Voicu and Rosen, Paul and Aliaga, Daniel G},
  journal = {IEEE/OSD Journal of Display Technology},
  volume = {2},
  pages = {274--283},
  year = {2006},
  abstract = {Volumetric three-dimensional (3-D) displays allow the user to explore a 3-D
    scene free of joysticks, keyboards, goggles, or trackers. For non-trivial scenes,
    computing and transferring a 3-D image to the display takes hundreds of seconds, which
    is a serious bottleneck for many applications. We propose to represent the 3-D scene
    with an occlusion camera reference image (OCRI). The OCRI is a compact scene
    representation that stores only and all scene samples that are visible from a viewing
    volume centered at a reference viewpoint. The OCRI enables computing and transferring
    the 3-D image an order of magnitude faster than when the entire scene is processed. The
    OCRI approach can be readily applied to several volumetric display technologies; we have
    tested the OCRI approach with good results on a volumetric display that creates a 3-D
    image by projecting 2-D scene slices onto a rotating screen.}
}