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Correcting decalibration of stereo cameras in self-driving vehicles
ID
Muhovič, Jon Natanael
(
Author
),
ID
Perš, Janez
(
Author
)
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MD5: EEBDE8E9838C696E046883127B274DF9
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https://www.mdpi.com/1424-8220/20/11/3241
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Abstract
Camera systems in autonomous vehicles are subject to various sources of anticipated and unanticipated mechanical stress (vibration, rough handling, collisions) in real-world conditions. Even moderate changes in camera geometry due to mechanical stress decalibrate multi-camera systems and corrupt downstream applications like depth perception. We propose an on-the-fly stereo recalibration method applicable in real-world autonomous vehicles. The method is comprised of two parts. First, in optimization step, external camera parameters are optimized with the goal to maximise the amount of recovered depth pixels. In the second step, external sensor is used to adjust the scaling of the optimized camera model. The method is lightweight and fast enough to run in parallel with stereo estimation, thus allowing an on-the-fly recalibration. Our extensive experimental analysis shows that our method achieves stereo reconstruction better or on par with manual calibration. If our method is used on a sequence of images, the quality of calibration can be improved even further.
Language:
English
Keywords:
visual stereo
,
recalibration
,
optimization
,
ranging
,
self-driving vehicles
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FE - Faculty of Electrical Engineering
Publication status:
Published
Publication version:
Version of Record
Publication date:
07.06.2020
Year:
2020
Number of pages:
17 str.
Numbering:
Vol. 20, iss. 11, art. 3241
PID:
20.500.12556/RUL-128747
UDC:
004.8
ISSN on article:
1424-8220
DOI:
10.3390/s20113241
COBISS.SI-ID:
38143235
Publication date in RUL:
27.07.2021
Views:
517
Downloads:
162
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Record is a part of a journal
Title:
Sensors
Shortened title:
Sensors
Publisher:
MDPI
ISSN:
1424-8220
COBISS.SI-ID:
10176278
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
07.06.2020
Secondary language
Language:
Slovenian
Keywords:
vidni stereo
,
rekalibracija
,
optimizacija
,
meritve razdalje
,
samovozeča vozila
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
J2-8175
Name:
Robustne metode računalniškega vida za avtonomna robotska plovila
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0095
Name:
Vzporedni in porazdeljeni sistemi
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