Efficient Solvers for Minimal Problems by Syzygy-Based Reduction

Viktor Larsson; Kalle Astrom; Magnus Oskarsson

CVPR 2017spotlight163 citations

Efficient Solvers for Minimal Problems by Syzygy-Based Reduction

Viktor Larsson, Kalle Astrom, Magnus Oskarsson

Abstract

In this paper we study the problem of automatically generating polynomial solvers for minimal problems. The main contribution is a new method for finding small elimination templates by making use of the syzygies (i.e. the polynomial relations) that exist between the original equations. Using these syzygies we can essentially parameterize the set of possible elimination templates. We evaluate our method on a wide variety of problems from geometric computer vision and show improvement compared to both handcrafted and automatically generated solvers. Furthermore we apply our method on two previously unsolved relative orientation problems.

BibTeX

@inproceedings{cvpr2017_efficientsolvers,
  title = {Efficient Solvers for Minimal Problems by Syzygy-Based Reduction},
  author = {Viktor Larsson and Kalle Astrom and Magnus Oskarsson},
  booktitle = {CVPR 2017},
  year = {2017}
}