Computer Graphics Forum

Locally Adapted Projections to Reduce Panorama Distortions

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

Material

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, D. Lischinski, O. Deussen, D. Cohen-Or, 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}
}