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Constraining Relative Camera Pose Estimation with Pedestrian Detector-Based Correspondence Filters

: Aldea, Emanuel; Pollok, Thomas; Qu, Chengchao

Postprint urn:nbn:de:0011-n-5828971 (976 KByte PDF)
MD5 Fingerprint: abd01fe1e4c41cbba314b9ccd87b8c38
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Created on: 6.6.2020

Institute of Electrical and Electronics Engineers -IEEE-:
16th IEEE International Conference on Advanced Video and Signal Based Surveillance, AVSS 2019 : 18-21 September 2019, Taipei, Taiwan
Piscataway, NJ: IEEE, 2019
ISBN: 978-1-7281-0990-9
ISBN: 978-1-7281-0989-3
ISBN: 978-1-7281-0991-6
International Conference on Advanced Video and Signal-Based Surveillance (AVSS) <16, 2019, Taipei>
Conference Paper, Electronic Publication
Fraunhofer IOSB ()

A prerequisite for using smart camera networks effectively is a precise extrinsic calibration of the camera sensors, either in a fixed coordinate system, or relatively to each other. For cameras with partly overlapping fields of view, the relative pose estimation may be directly performed on or assisted by the video content obtained during scene analysis. In typical conditions however (wide baseline, repetitive patterns, homogeneous appearance of pedestrians), the pose estimation is imprecise and very often is affected by large errors in weakly constrained areas of the field of view. In this work, we propose to rely on progressively stricter constraints on the feature association between the camera views, guided by a pedestrian detector and a re-identification algorithm respectively. The results show that the two strategies are effective in alleviating the ambiguity which is due to the similar appearance of pedestrians in such scenes, and in improving the relative pose estimation.