Efficient Solution of Point-Line Absolute Pose
CVPR 2024(2024)
摘要
We revisit certain problems of pose estimation based on 3D–2D
correspondences between features which may be points or lines. Specifically, we
address the two previously-studied minimal problems of estimating camera
extrinsics from p ∈{ 1, 2 } point–point correspondences and l=3-p
line–line correspondences. To the best of our knowledge, all of the
previously-known practical solutions to these problems required computing the
roots of degree ≥ 4 (univariate) polynomials when p=2, or degree ≥ 8
polynomials when p=1. We describe and implement two elementary solutions
which reduce the degrees of the needed polynomials from 4 to 2 and from 8
to 4, respectively. We show experimentally that the resulting solvers are
numerically stable and fast: when compared to the previous state-of-the art, we
may obtain nearly an order of magnitude speedup. The code is available at
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