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AUTOMATIC CALIBRATION AND CO-REGISTRATION FOR A STEREO CAMERA SYSTEM AND A THERMAL IMAGING SENSOR USING A CHESSBOARD

Choinowski, André and Dahlke, Dennis and Ernst, Ines and Pless, Sebastian and Rettig, Immanuel (2019) AUTOMATIC CALIBRATION AND CO-REGISTRATION FOR A STEREO CAMERA SYSTEM AND A THERMAL IMAGING SENSOR USING A CHESSBOARD. In: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives. ISPRS Geospatial Week 2019, 10.-14 Juni 2019, Enschede, Niederlande.

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Abstract

This paper presents a system calibration method for a trifocal sensor, which is sensitive to different spectral bands. The trifocal camera system consists of a stereo camera, operating in the visual (VIS) spectrum and a thermal imaging camera, operating in the Long-WaveInfrared (LWIR) spectrum. Intrinsic parameters and spatial alignment are determined simultaneously. As calibration target a passive aluminium chessboard is used. Corner detection and subsequent bundle adjustment is done on all synchronized image triplets. The remaining reprojection errors are in the sub-pixel range and enable the system to generate metric point clouds, colored with thermal intensities in real-time.

Item URL in elib:https://elib.dlr.de/128203/
Document Type:Conference or Workshop Item (Speech)
Title:AUTOMATIC CALIBRATION AND CO-REGISTRATION FOR A STEREO CAMERA SYSTEM AND A THERMAL IMAGING SENSOR USING A CHESSBOARD
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Choinowski, Andréandre.choinowski (at) dlr.deUNSPECIFIED
Dahlke, Dennisdennis.dahlke (at) dlr.deUNSPECIFIED
Ernst, InesInes.Ernst (at) dlr.deUNSPECIFIED
Pless, Sebastiansebastian.pless (at) dlr.deUNSPECIFIED
Rettig, ImmanuelImmanuel.Rettig (at) dlr.deUNSPECIFIED
Date:2019
Journal or Publication Title:International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:Thermal, VIS, Chessboard, Co-Registration, Realtime, System calibration
Event Title:ISPRS Geospatial Week 2019
Event Location:Enschede, Niederlande
Event Type:international Conference
Event Dates:10.-14 Juni 2019
Organizer:ISPRS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - NGC KoFiF, R - Vorhaben Optische Sensorik - Theorie, Kalibration, Verifikation
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Real-Time Data Processing
Deposited By: Dahlke, Dennis
Deposited On:03 Jul 2019 10:03
Last Modified:18 Sep 2019 13:25

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