A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/15508 http://hdl.handle.net/11449/6712 |
Resumo: | Image acquisition systems based on multi-head arrangement of digital frame cameras, such as the commercial systems DMC, UltraCam, besides others, are attractive alternatives enabling larger imaging area when compared to a single frame camera. Considering that in these systems, cameras are tightly attached to an external mount, it is assumed that relative position and orientation between cameras are stable during image acquisition and, consequently, these constraint can be included in the calibration step. This constraint is acceptable because estimates of the relative orientation (RO) parameters between cameras, from previously estimated exterior orientation parameters, present higher and significant deviations than the expected physical variations, due to error propagation. In order to solve this problem, this work presents an approach based on simultaneous calibration of two or more cameras using constraints that state that the relative rotation matrix and the distance between the cameras head are stable. Experiments with images acquired by an arrangement of two Hasselblad H2D cameras were accomplished, without and with the mentioned constraints. The experiments showed that the calibration process with RO constraints allows better results than the approach based on single camera calibration, provided that the estimation has included only images with good target distribution. |
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A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitaisInfluence of relative orientation constraints in two-head digital camera calibrationDigital Camera CalibrationMulti-Camera System CalibrationBundle Adjustment with Additional ParametersRelative Orientation ConstraintsDigital PhotogrammetryImage acquisition systems based on multi-head arrangement of digital frame cameras, such as the commercial systems DMC, UltraCam, besides others, are attractive alternatives enabling larger imaging area when compared to a single frame camera. Considering that in these systems, cameras are tightly attached to an external mount, it is assumed that relative position and orientation between cameras are stable during image acquisition and, consequently, these constraint can be included in the calibration step. This constraint is acceptable because estimates of the relative orientation (RO) parameters between cameras, from previously estimated exterior orientation parameters, present higher and significant deviations than the expected physical variations, due to error propagation. In order to solve this problem, this work presents an approach based on simultaneous calibration of two or more cameras using constraints that state that the relative rotation matrix and the distance between the cameras head are stable. Experiments with images acquired by an arrangement of two Hasselblad H2D cameras were accomplished, without and with the mentioned constraints. The experiments showed that the calibration process with RO constraints allows better results than the approach based on single camera calibration, provided that the estimation has included only images with good target distribution.UNESP, PPGCC, BR-19060900 Presidente Prudente, SP, BrazilSantiago & Cintra Consultoria, Santiago, BrazilUNESP, PPGCC, BR-19060900 Presidente Prudente, SP, BrazilUniversidade Federal do Paraná (UFPR), Centro PolitecnicoUniversidade Estadual Paulista (Unesp)Santiago & Cintra ConsultoriaBazan, Wimerson Sanches [UNESP]Garcia Tommaselli, Antonio Maria [UNESP]Galo, Mauricio [UNESP]Ruy, Roberto da Silva [UNESP]2014-05-20T13:22:44Z2014-05-20T13:22:44Z2009-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article444-466application/pdfhttp://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/15508Boletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 3, p. 444-466, 2009.1413-4853http://hdl.handle.net/11449/6712WOS:000270983800009WOS000270983800009.pdf16473186442995610000-0002-0104-9960Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBoletim de Ciências Geodésicas0,188info:eu-repo/semantics/openAccess2023-12-27T06:17:44Zoai:repositorio.unesp.br:11449/6712Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-27T06:17:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais Influence of relative orientation constraints in two-head digital camera calibration |
title |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais |
spellingShingle |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais Bazan, Wimerson Sanches [UNESP] Digital Camera Calibration Multi-Camera System Calibration Bundle Adjustment with Additional Parameters Relative Orientation Constraints Digital Photogrammetry |
title_short |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais |
title_full |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais |
title_fullStr |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais |
title_full_unstemmed |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais |
title_sort |
A influência das injunções de orientação relativa na calibração de um sistema dual de câmeras digitais |
author |
Bazan, Wimerson Sanches [UNESP] |
author_facet |
Bazan, Wimerson Sanches [UNESP] Garcia Tommaselli, Antonio Maria [UNESP] Galo, Mauricio [UNESP] Ruy, Roberto da Silva [UNESP] |
author_role |
author |
author2 |
Garcia Tommaselli, Antonio Maria [UNESP] Galo, Mauricio [UNESP] Ruy, Roberto da Silva [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Santiago & Cintra Consultoria |
dc.contributor.author.fl_str_mv |
Bazan, Wimerson Sanches [UNESP] Garcia Tommaselli, Antonio Maria [UNESP] Galo, Mauricio [UNESP] Ruy, Roberto da Silva [UNESP] |
dc.subject.por.fl_str_mv |
Digital Camera Calibration Multi-Camera System Calibration Bundle Adjustment with Additional Parameters Relative Orientation Constraints Digital Photogrammetry |
topic |
Digital Camera Calibration Multi-Camera System Calibration Bundle Adjustment with Additional Parameters Relative Orientation Constraints Digital Photogrammetry |
description |
Image acquisition systems based on multi-head arrangement of digital frame cameras, such as the commercial systems DMC, UltraCam, besides others, are attractive alternatives enabling larger imaging area when compared to a single frame camera. Considering that in these systems, cameras are tightly attached to an external mount, it is assumed that relative position and orientation between cameras are stable during image acquisition and, consequently, these constraint can be included in the calibration step. This constraint is acceptable because estimates of the relative orientation (RO) parameters between cameras, from previously estimated exterior orientation parameters, present higher and significant deviations than the expected physical variations, due to error propagation. In order to solve this problem, this work presents an approach based on simultaneous calibration of two or more cameras using constraints that state that the relative rotation matrix and the distance between the cameras head are stable. Experiments with images acquired by an arrangement of two Hasselblad H2D cameras were accomplished, without and with the mentioned constraints. The experiments showed that the calibration process with RO constraints allows better results than the approach based on single camera calibration, provided that the estimation has included only images with good target distribution. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-07-01 2014-05-20T13:22:44Z 2014-05-20T13:22:44Z |
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://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/15508 Boletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 3, p. 444-466, 2009. 1413-4853 http://hdl.handle.net/11449/6712 WOS:000270983800009 WOS000270983800009.pdf 1647318644299561 0000-0002-0104-9960 |
url |
http://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/15508 http://hdl.handle.net/11449/6712 |
identifier_str_mv |
Boletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 3, p. 444-466, 2009. 1413-4853 WOS:000270983800009 WOS000270983800009.pdf 1647318644299561 0000-0002-0104-9960 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Boletim de Ciências Geodésicas 0,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
444-466 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal do Paraná (UFPR), Centro Politecnico |
publisher.none.fl_str_mv |
Universidade Federal do Paraná (UFPR), Centro Politecnico |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965420589940736 |