Active stereo platform: online epipolar geometry update

Abstract This paper presents a novel method to update a variable epipolar geometry platform directly from the motor encoder based on mapping the motor encoder angle to the image space angle, avoiding the use of feature detection algorithms. First, an offline calibration is performed to establish a r...

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Main Authors: Abdulla Mohamed, Phil Culverhouse, Angelo Cangelosi, Chenguang Yang
Format: Article
Language:English
Published: SpringerOpen 2018-07-01
Series:EURASIP Journal on Image and Video Processing
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13640-018-0292-8
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author Abdulla Mohamed
Phil Culverhouse
Angelo Cangelosi
Chenguang Yang
author_facet Abdulla Mohamed
Phil Culverhouse
Angelo Cangelosi
Chenguang Yang
author_sort Abdulla Mohamed
collection DOAJ
description Abstract This paper presents a novel method to update a variable epipolar geometry platform directly from the motor encoder based on mapping the motor encoder angle to the image space angle, avoiding the use of feature detection algorithms. First, an offline calibration is performed to establish a relationship between the image space and the hardware space. Second, a transformation matrix is generated using the results from this mapping. The transformation matrix uses the updated epipolar geometry of the platform to rectify the images for further processing. The system has an overall error in the projection of ± 5 pixels, which drops to ± 1.24 pixels when the verge angle increases beyond 10°. The platform used in this project has 3° of freedom to control the verge angle and the size of the baseline.
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spelling doaj.art-679df038c81e4cdcb2c584b8a4e414112022-12-21T22:35:29ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-52812018-07-012018111610.1186/s13640-018-0292-8Active stereo platform: online epipolar geometry updateAbdulla Mohamed0Phil Culverhouse1Angelo Cangelosi2Chenguang Yang3Centre for Robotics and Neural Systems, Plymouth UniversityCentre for Robotics and Neural Systems, Plymouth UniversityCentre for Robotics and Neural Systems, Plymouth UniversityCentre for Robotics and Neural Systems, Plymouth UniversityAbstract This paper presents a novel method to update a variable epipolar geometry platform directly from the motor encoder based on mapping the motor encoder angle to the image space angle, avoiding the use of feature detection algorithms. First, an offline calibration is performed to establish a relationship between the image space and the hardware space. Second, a transformation matrix is generated using the results from this mapping. The transformation matrix uses the updated epipolar geometry of the platform to rectify the images for further processing. The system has an overall error in the projection of ± 5 pixels, which drops to ± 1.24 pixels when the verge angle increases beyond 10°. The platform used in this project has 3° of freedom to control the verge angle and the size of the baseline.http://link.springer.com/article/10.1186/s13640-018-0292-8Active stereo visionEpipolar geometryCalibrationBinocular visionReal-time update
spellingShingle Abdulla Mohamed
Phil Culverhouse
Angelo Cangelosi
Chenguang Yang
Active stereo platform: online epipolar geometry update
EURASIP Journal on Image and Video Processing
Active stereo vision
Epipolar geometry
Calibration
Binocular vision
Real-time update
title Active stereo platform: online epipolar geometry update
title_full Active stereo platform: online epipolar geometry update
title_fullStr Active stereo platform: online epipolar geometry update
title_full_unstemmed Active stereo platform: online epipolar geometry update
title_short Active stereo platform: online epipolar geometry update
title_sort active stereo platform online epipolar geometry update
topic Active stereo vision
Epipolar geometry
Calibration
Binocular vision
Real-time update
url http://link.springer.com/article/10.1186/s13640-018-0292-8
work_keys_str_mv AT abdullamohamed activestereoplatformonlineepipolargeometryupdate
AT philculverhouse activestereoplatformonlineepipolargeometryupdate
AT angelocangelosi activestereoplatformonlineepipolargeometryupdate
AT chenguangyang activestereoplatformonlineepipolargeometryupdate