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Efficient multi-view ray tracing using edge detection and shader reuse

Publiceringsår: 2011
Språk: Engelska
Sidor: 665-676
Publikation/Tidskrift/Serie: The Visual Computer
Volym: 27
Nummer: 6-8
Dokumenttyp: Konferensbidrag
Förlag: Springer Berlin / Heidelberg

Sammanfattning

Stereoscopic rendering and 3D stereo displays are quickly becoming mainstream. The natural extension is autostereoscopic multi-view displays, which by the use of parallax barriers or lenticular lenses, can accommodate many simultaneous viewers without the need for active or passive glasses. As these displays, for the foreseeable future, will support only a rather limited number of views, there is a need for high-quality interperspective antialiasing. We present a specialized algorithm for efficient multi-view image generation from a camera line using ray tracing, which builds on previous methods for multi-dimensional adaptive sampling and reconstruction of light elds. We introduce multi-view silhouette edges to detect sharp geometrical discontinuities in the radiance function. These are used to significantly improve the quality of the reconstruction. In addition, we exploit shader coherence by computing analytical visibility between shading points and the camera line, and by sharing shading computations over
the camera line.

Disputation

Nyckelord

  • Technology and Engineering
  • multi-view
  • ray tracing
  • adaptive sampling
  • edge detection

Övriga

Computer Graphics International
2011-06-11
Ottawa, Canada
Published
Yes
  • Computer Graphics
The original publication is available at www.springerlink.com
  • ISSN: 0178-2789 (Print)
  • ISSN: 1432-2315 (Online)

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