Visual Computing

University of Konstanz
ACM Transactions on Graphics

Joint Bilateral Upsampling

J. Kopf, M. Cohen, D. Lischinski, M. Uyttendaele
Teaser of Joint Bilateral Upsampling


Paper (.pdf, 34.6MB)


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.


  acmid      = {1276497},
  address    = {New York, NY, USA},
  articleno  = {96},
  author     = {J. Kopf, M. Cohen, D. Lischinski, M. Uyttendaele},
  doi        = {10.1145/1276377.1276497},
  issn       = {0730-0301},
  issue_date = {July 2007},
  journal    = {ACM Transactions on Graphics},
  keywords   = {bilateral filter, upsampling},
  month      = {jul},
  number     = {3},
  publisher  = {ACM},
  title      = {Joint Bilateral Upsampling},
  url        = {},
  volume     = {26},
  year       = {2007}