Visual Computing

University of Konstanz
Computer Graphics Forum

Locally Adapted Projections to Reduce Panorama Distortions

J. Kopf, D. Lischinski, O. Deussen, D. Cohen-Or, M. Cohen

Abstract

Displaying panoramic and wide angle views on a flat 2D display surface is necessarily prone to distortions. Perspective projections are limited to fairly narrow view angles. Cylindrical and spherical projections can show full 360° panoramas, but at the cost of curving straight lines, interfering with the perception of salient shapes in the scene. In this paper, we introduce locally-adapted projections. Such projections are defined by a continuous projection surface consisting of both near-planar and curved parts. A simple and intuitive user interface allows the specification of regions of interest to be mapped to the near-planar parts, thereby reducing bending artifacts. We demonstrate the effectiveness of our approach on a variety of panoramic and wide angle images, including both indoor and outdoor scenes.

BibTeX

@article{Kopf2009LocallyAdaptedProjections,
  author     = {J. Kopf and D. Lischinski and O. Deussen and D. Cohen-Or and M. Cohen},
  doi        = {10.1111/j.1467-8659.2009.01485.x},
  issn       = {1467-8659},
  journal    = {Computer Graphics Forum},
  keywords   = {I.3.3 [Computer Graphics]: Picture/Image Generation—Viewing algorithms},
  number     = {4},
  pages      = {1083--1089},
  publisher  = {Blackwell Publishing Ltd},
  title      = {Locally Adapted Projections to Reduce Panorama Distortions},
  url        = {http://johanneskopf.de/publications/projection/index.html},
  volume     = {28},
  year       = {2009},
}

Supplemental Material

Paper (.pdf, 15.5 MB)