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dc.contributor.author
Frangez, Valens
dc.contributor.author
Salido Monzú, David
dc.contributor.author
Wieser, Andreas
dc.date.accessioned
2022-05-02T06:09:52Z
dc.date.available
2022-04-30T11:08:31Z
dc.date.available
2022-05-02T06:09:52Z
dc.date.issued
2022
dc.identifier.issn
0018-9456
dc.identifier.issn
1557-9662
dc.identifier.other
10.1109/TIM.2022.3167792
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/544509
dc.identifier.doi
10.3929/ethz-b-000544509
dc.description.abstract
Time-of-flight depth cameras are interesting sensors for contact-less 3-D metrology because they combine mechanical robustness with independence of ambient lighting conditions. Their actual performance depends on many factors and is hard to predict from data sheets. In this study, we investigate the deviations of the distance measurements of a high-end phase-based depth camera. We focus on the impact of: 1) self-warming and external temperature; 2) on range noise as a function of distance and acquisition time; and 3) on distance-dependent biases. We present the dedicated experimental setups comprising a climate chamber, a calibration bench with a reference interferometer, and a laser tracker that provides controlled conditions and ground-truth data. These setups allow investigating the absolute accuracy and mitigating repeatable distance biases by adapting the measurement model based on experimental data. For demonstration, we apply the investigation to two state-of- the-art industrial depth cameras of the same brand and type (Helios Lucid), showing significantly different response to external temperature but similar distance-dependent biases. We adapt the measurement model of one of the cameras for distance-dependent inter-pixel biases and demonstrate that the resulting parameters reduce also the distance biases of the other camera by about 80% to less than 1 mm at ranges of up to 1 m. This indicates the potential for batch error compensation. This article contributes to better understanding distance deviations of depth cameras and to improving the accuracy of such cameras.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
IEEE
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
Accuracy assessment
en_US
dc.subject
depth camera
en_US
dc.subject
distance errors
en_US
dc.subject
error compensation
en_US
dc.subject
metrology
en_US
dc.subject
time-of-flight (ToF)
en_US
dc.title
Assessment and Improvement of Distance Measurement Accuracy for Time-of-Flight Cameras
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2022-04-18
ethz.journal.title
IEEE Transactions on Instrumentation and Measurement
ethz.journal.volume
71
en_US
ethz.journal.abbreviated
IEEE trans. instrum. meas
ethz.pages.start
1003511
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.publication.place
Piscataway, NJ
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02100 - Dep. Architektur / Dep. of Architecture::02284 - NFS Digitale Fabrikation / NCCR Digital Fabrication
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02647 - Inst. f. Geodäsie und Photogrammetrie / Institute of Geodesy and Photogrammetry::03964 - Wieser, Andreas / Wieser, Andreas
en_US
ethz.date.deposited
2022-04-30T11:08:39Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-05-02T06:10:00Z
ethz.rosetta.lastUpdated
2022-05-02T06:10:00Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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