For the active control of large-scale structures, especially high-rise buildings and bridges, fast and accurate measurement of local deformations is required. We present a highly accurate and fast vision-based measurement technique and, to the best of our knowledge, first experimental results for the control of an adaptive-structures prototype frame, equipped with hydraulic actuators. Deformations are detected at multiple discrete points, based on a photogrammetric approach with additional holographic spot replication. The replication leads to effective averaging of most error contributions, especially discretization and photon noise. Measurements over a distance of 11.4 m result in a measurement uncertainty of 0.0077 pixel (corresponding to 0.055 mm in object space).
%0 Journal Article
%1 Guerra:20
%A Guerra, Flavio
%A Haist, Tobias
%A Warsewa, Alexander
%A Hartlieb, Simon
%A Osten, Wolfgang
%A Tarin, Cristina
%D 2020
%I OSA
%J Appl. Opt.
%K 3dm ito reviewed
%N 9
%P 2746--2753
%R 10.1364/AO.385594
%T Precise building deformation measurement using holographic multipoint replication
%U http://ao.osa.org/abstract.cfm?URI=ao-59-9-2746
%V 59
%X For the active control of large-scale structures, especially high-rise buildings and bridges, fast and accurate measurement of local deformations is required. We present a highly accurate and fast vision-based measurement technique and, to the best of our knowledge, first experimental results for the control of an adaptive-structures prototype frame, equipped with hydraulic actuators. Deformations are detected at multiple discrete points, based on a photogrammetric approach with additional holographic spot replication. The replication leads to effective averaging of most error contributions, especially discretization and photon noise. Measurements over a distance of 11.4 m result in a measurement uncertainty of 0.0077 pixel (corresponding to 0.055 mm in object space).
@article{Guerra:20,
abstract = {For the active control of large-scale structures, especially high-rise buildings and bridges, fast and accurate measurement of local deformations is required. We present a highly accurate and fast vision-based measurement technique and, to the best of our knowledge, first experimental results for the control of an adaptive-structures prototype frame, equipped with hydraulic actuators. Deformations are detected at multiple discrete points, based on a photogrammetric approach with additional holographic spot replication. The replication leads to effective averaging of most error contributions, especially discretization and photon noise. Measurements over a distance of 11.4 m result in a measurement uncertainty of 0.0077 pixel (corresponding to 0.055 mm in object space).},
added-at = {2021-03-02T11:01:04.000+0100},
author = {Guerra, Flavio and Haist, Tobias and Warsewa, Alexander and Hartlieb, Simon and Osten, Wolfgang and Tarin, Cristina},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/24fea74d63f71f0e2fe743f28d2e2b902/vogelfrau},
doi = {10.1364/AO.385594},
interhash = {148f65e4ea961c399d7af1f4b894eb86},
intrahash = {4fea74d63f71f0e2fe743f28d2e2b902},
journal = {Appl. Opt.},
keywords = {3dm ito reviewed},
month = mar,
number = 9,
pages = {2746--2753},
publisher = {OSA},
timestamp = {2021-03-02T10:01:04.000+0100},
title = {Precise building deformation measurement using holographic multipoint replication},
url = {http://ao.osa.org/abstract.cfm?URI=ao-59-9-2746},
volume = 59,
year = 2020
}
