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Journal of Mathematical Imaging and Vision

, Volume 6, Issue 4, pp 393–412 | Cite as

On the consistency of line-drawings, obtained by projections of piecewise planar objects

  • Anders Heyden
Article

Abstract

This paper deals with line-drawings, obtained from images of piecewise planar objects after edge detection. Such images are used, e.g., for navigation and recognition. In order to be a possible image of a three dimensional piecewise planar object, it has to obey some projective conditions. Criteria for a line-drawing to be correct is given in this paper, along with methods to find possible interpretations. In real life situations, due to digitization errors and noise, a line-drawing in general does not obey the geometric conditions imposed by the projective imaging process. Under various optimality conditions, algorithms are presented for the correction of such distorted line-drawings.

Keywords

line-drawings shape depth consistency correction 

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Anders Heyden
    • 1
  1. 1.Dept. of MathematicsLund Institute of TechnologyLundSweden

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