[image 03507] 講演会(5/15)のご案内

[Akihiro Sugimoto]

皆様

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杉本
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日時:   5/14(火) 16:00-17:00
場所:   国立情報学研究所　19F 1901号室
           (東京都千代田区一ツ橋2-1-2）
            https://www.nii.ac.jp/about/access/

講演者: Dr. Zuzana Kukelova
               (Czech Technical University in Prague)
              http://kukelova.weebly.com

タイトル：Rectification of Radially Distorted Images from Coplanar Repeats

概要：
This work introduces the first minimal solvers that jointly estimate lens
distortion and affine rectification from repetitions of translated or
rigidly-transformed coplanar local features. The proposed solvers
incorporate lens distortion into the camera model and extend accurate
rectification to wide-angle images that contain nearly any type of coplanar
repeated content. We demonstrate a principled approach to generating stable
minimal solvers by the Groebner basis method, which is accomplished by
sampling feasible monomial bases to maximize numerical stability. Synthetic
and real-image experiments confirm that the solvers give accurate
rectifications from noisy measurements if used in a RANSAC-based estimator.
The proposed solvers demonstrate superior robustness to noise compared to
the state of the art. The solvers work on scenes without straight lines
and, in general, relax strong assumptions about scene content made by the
state of the art. Accurate rectifications on imagery taken with narrow
focal length to fisheye lenses demonstrate the wide applicability of the
proposed method.
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