[PDF][PDF] Fixing the locally optimized ransac–full experimental evaluation

K Lebeda, J Matas, O Chum - British machine vision conference, 2012 - researchgate.net
The paper revisits the problem of local optimization for RANSAC. Improvements of the LO-
RANSAC procedure are proposed: a use of truncated quadratic cost function, an …

Homography from two orientation-and scale-covariant features

D Barath, Z Kukelova - Proceedings of the IEEE/CVF …, 2019 - openaccess.thecvf.com
This paper proposes a geometric interpretation of the angles and scales which the
orientation-and scale-covariant feature detectors, eg SIFT, provide. Two new general …

Making affine correspondences work in camera geometry computation

D Barath, M Polic, W Förstner, T Sattler, T Pajdla… - Computer Vision–ECCV …, 2020 - Springer
Local features eg. SIFT and its affine and learned variants provide region-to-region rather
than point-to-point correspondences. This has recently been exploited to create new …

Theory and practice of structure-from-motion using affine correspondences

C Raposo, JP Barreto - Proceedings of the IEEE …, 2016 - openaccess.thecvf.com
Abstract Affine Correspondences (ACs) are more informative than Point Correspondences
(PCs) that are used as input in mainstream algorithms for Structure-from-Motion (SfM). Since …

Efficient recovery of essential matrix from two affine correspondences

D Barath, L Hajder - IEEE Transactions on Image Processing, 2018 - ieeexplore.ieee.org
We propose a method to estimate the essential matrix using two affine correspondences for
a pair of calibrated perspective cameras. Two novel, linear constraints are derived between …

Five-point fundamental matrix estimation for uncalibrated cameras

D Barath - Proceedings of the IEEE Conference on …, 2018 - openaccess.thecvf.com
We aim at estimating the fundamental matrix in two views from five correspondences of
rotation invariant features obtained by eg the SIFT detector. The proposed minimal solver …

On making sift features affine covariant

D Barath - International Journal of Computer Vision, 2023 - Springer
An approach is proposed for recovering affine correspondences (ACs) from orientation-and
scale-covariant, eg, SIFT, features exploiting pre-estimated epipolar geometry. The method …

Conic epipolar constraints from affine correspondences

J Bentolila, JM Francos - Computer Vision and Image Understanding, 2014 - Elsevier
We derive an explicit relation between local affine approximations resulting from matching of
affine invariant regions and the epipolar geometry in the case of a two view geometry. Most …

A minimal solution for two-view focal-length estimation using two affine correspondences

D Barath, T Toth, L Hajder - Proceedings of the IEEE …, 2017 - openaccess.thecvf.com
A minimal solution using two affine correspondences is presented to estimate the common
focal length and the fundamental matrix between two semi-calibrated cameras-known …

Relative pose from sift features

D Barath, Z Kukelova - European Conference on Computer Vision, 2022 - Springer
This paper derives the geometric relationship of epipolar geometry and orientation-and
scale-covariant, eg, SIFT, features. We derive a new linear constraint relating the unknown …