Joint bilateral upsampling

Johannes Kopf*, Michael F. Cohen, Dani Lischinski, Matt Uyttendaele

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

354 Scopus citations

Abstract

Image analysis and enhancement tasks such as tone mapping, colorization, stereo depth, and photomontage, often require computing a solution (e.g., for exposure, chromaticity, disparity, labels) over the pixel grid. Computational and memory costs often require that a smaller solution be run over a downsampled image. Although general purpose upsampling methods can be used to interpolate the low resolution solution to the full resolution, these methods generally assume a smoothness prior for the interpolation. We demonstrate that in cases, such as those above, the available high resolution input image may be leveraged as a prior in the context of a joint bilateral upsampling procedure to produce a better high resolution solution. We show results for each of the applications above and compare them to traditional upsampling methods.

Original languageAmerican English
DOIs
StatePublished - 2007
Event34th Annual Meeting of the Association for Computing Machinery's Special Interest Group on Graphics - San Diego, CA, United States
Duration: 5 Aug 20079 Aug 2007

Conference

Conference34th Annual Meeting of the Association for Computing Machinery's Special Interest Group on Graphics
Country/TerritoryUnited States
CitySan Diego, CA
Period5/08/079/08/07

Keywords

  • Bilateral filter
  • Upsampling

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