Search Results for author: Kalle Astrom

Found 10 papers, 3 papers with code

Beyond Grobner Bases: Basis Selection for Minimal Solvers

no code implementations CVPR 2018 Viktor Larsson, Magnus Oskarsson, Kalle Astrom, Alge Wallis, Zuzana Kukelova, Tomas Pajdla

In this paper we show how we can make polynomial solvers based on the action matrix method faster, by careful selection of the monomial bases.

Polynomial Solvers for Saturated Ideals

no code implementations ICCV 2017 Viktor Larsson, Kalle Astrom, Magnus Oskarsson

In this paper we present a new method for creating polynomial solvers for problems where a (possibly infinite) subset of the solutions are undesirable or uninteresting.

The Misty Three Point Algorithm for Relative Pose

no code implementations CVPR 2017 Tobias Palmer, Kalle Astrom, Jan-Michael Frahm

There is a significant interest in scene reconstruction from underwater images given its utility for oceanic research and for recreational image manipulation.

Image Manipulation Motion Estimation

Efficient Solvers for Minimal Problems by Syzygy-Based Reduction

no code implementations CVPR 2017 Viktor Larsson, Kalle Astrom, Magnus Oskarsson

In this paper we study the problem of automatically generating polynomial solvers for minimal problems.

Absolute Pose for Cameras Under Flat Refractive Interfaces

1 code implementation CVPR 2015 Sebastian Haner, Kalle Astrom

This paper studies the problem of determining the absolute pose of a perspective camera observing a scene through a known refractive plane, the flat boundary between transparent media with different refractive indices.

On the Minimal Problems of Low-Rank Matrix Factorization

no code implementations CVPR 2015 Fangyuan Jiang, Magnus Oskarsson, Kalle Astrom

Low-rank matrix factorization is an essential problem in many areas including computer vision, with applications in e. g. affine structure-from-motion, photometric stereo, and non-rigid structure from motion.

Partial Symmetry in Polynomial Systems and its Applications in Computer Vision

no code implementations CVPR 2014 Yubin Kuang, Yinqiang Zheng, Kalle Astrom

Algorithms for solving systems of polynomial equations are key components for solving geometry problems in computer vision.

Minimal Solvers for Relative Pose with a Single Unknown Radial Distortion

no code implementations CVPR 2014 Yubin Kuang, Jan E. Solem, Fredrik Kahl, Kalle Astrom

In this paper, we study the problems of estimating relative pose between two cameras in the presence of radial distortion.

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