Reconstruction from Image Sequences by Means of Relative Depths

  • Authors:
  • Anders Heyden

  • Affiliations:
  • Dept. of Mathematics, Lund University, Box 118, S-221 00 Lund, Sweden

  • Venue:
  • International Journal of Computer Vision
  • Year:
  • 1997

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Abstract

This paper deals with the problem of reconstructing the locations ofn points in space from m different images without cameracalibration. It shows how these problems can be put into a similartheoretical framework.A new concept, the reduced fundamental matrix, is introduced. Itcontains just 4 parameters and can be used to predict locations ofpoints in the images and to make reconstruction. We also introducethe concept of reduced fundamental tensor, which describes therelations between points in 3 images. It has 15 components anddepends on 9 parameters. Necessary and sufficient conditions for atensor to be a reduced fundamental tensor are derived. This frameworkcan be generalised to a sequence of images. The dependencies betweenthe different representations are investigated. Furthermore acanonical form of the camera matrices in a sequence are presented.