Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/27276 https://doi.org/10.1016/j.cviu.2013.04.001 |
Resumo: | We propose a novel calibration method for catadioptric systems made up of an axial symmetrical mirror and a pinhole camera with its optical center located at the mirror axis. The calibration estimates the relative camera/mirror position and the extrinsic rotation and translation w.r.t. the world frame. The procedure requires a single image of a (possibly planar) calibration object. We show how most of the calibration parameters can be estimated using linear methods (Direct-Linear-Transformation algorithm) and cross-ratio. Two remaining parameters are obtained by using non-linear optimization. We present experimental results on simulated and real images. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systemsNon-central catadioptric vision systemsCalibrationAxial symmetric mirrorsWe propose a novel calibration method for catadioptric systems made up of an axial symmetrical mirror and a pinhole camera with its optical center located at the mirror axis. The calibration estimates the relative camera/mirror position and the extrinsic rotation and translation w.r.t. the world frame. The procedure requires a single image of a (possibly planar) calibration object. We show how most of the calibration parameters can be estimated using linear methods (Direct-Linear-Transformation algorithm) and cross-ratio. Two remaining parameters are obtained by using non-linear optimization. We present experimental results on simulated and real images.Elsevier2013-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/27276http://hdl.handle.net/10316/27276https://doi.org/10.1016/j.cviu.2013.04.001engPERDIGOTO, Luis; ARAUJO, Helder - Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems. "Computer Vision and Image Understanding". ISSN 1077-3142. Vol. 117 Nº. 8 (2013) p. 909-9211077-3142http://www.sciencedirect.com/science/article/pii/S1077314213000635Perdigoto, LuisAraujo, Helderinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-25T12:06:13Zoai:estudogeral.uc.pt:10316/27276Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:57:55.452027Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
title |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
spellingShingle |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems Perdigoto, Luis Non-central catadioptric vision systems Calibration Axial symmetric mirrors |
title_short |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
title_full |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
title_fullStr |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
title_full_unstemmed |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
title_sort |
Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems |
author |
Perdigoto, Luis |
author_facet |
Perdigoto, Luis Araujo, Helder |
author_role |
author |
author2 |
Araujo, Helder |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Perdigoto, Luis Araujo, Helder |
dc.subject.por.fl_str_mv |
Non-central catadioptric vision systems Calibration Axial symmetric mirrors |
topic |
Non-central catadioptric vision systems Calibration Axial symmetric mirrors |
description |
We propose a novel calibration method for catadioptric systems made up of an axial symmetrical mirror and a pinhole camera with its optical center located at the mirror axis. The calibration estimates the relative camera/mirror position and the extrinsic rotation and translation w.r.t. the world frame. The procedure requires a single image of a (possibly planar) calibration object. We show how most of the calibration parameters can be estimated using linear methods (Direct-Linear-Transformation algorithm) and cross-ratio. Two remaining parameters are obtained by using non-linear optimization. We present experimental results on simulated and real images. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-08 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/27276 http://hdl.handle.net/10316/27276 https://doi.org/10.1016/j.cviu.2013.04.001 |
url |
http://hdl.handle.net/10316/27276 https://doi.org/10.1016/j.cviu.2013.04.001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
PERDIGOTO, Luis; ARAUJO, Helder - Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems. "Computer Vision and Image Understanding". ISSN 1077-3142. Vol. 117 Nº. 8 (2013) p. 909-921 1077-3142 http://www.sciencedirect.com/science/article/pii/S1077314213000635 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133869332496384 |