Efficient image updates using light fields

Biswarup Choudhury, Aviral Pandey, Sharat Chandran*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The light field rendering method is an interesting variation on achieving realism. Once authentic imagery has been acquired using a camera gantry, or a handheld camera, detailed novel views can be synthetically generated from various viewpoints. One common application of this technique is when a user "walks" through a virtual world. In this situation, only a subset of the previously stored light field is required, and considerable computation burden is encountered in processing the input light field to obtain this subset. In this paper, we show that appropriate portions of the light field can be cached at select "nodal points" that depend on the camera walk. Once spartanly and quickly cached, scenes can be rendered from any point on the walk efficiently.

Original languageEnglish (US)
Pages (from-to)375-383
Number of pages9
JournalPattern Recognition Letters
Volume28
Issue number3
DOIs
StatePublished - Feb 1 2007

Keywords

  • Image-based rendering
  • Rendering
  • Virtual reality
  • Visualization
  • Walkthroughs

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence

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