A fast and accurate approach for computing the dimensions of boxes from single perspective images
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/72567 |
Resumo: | This paper describes an accurate method for computing the dimensions of boxes directly from perspective projection images acquired by conventional cameras. The approach is based on projective geometry and computes the box dimensions using data extracted from the box silhouette and from the projection of two parallel laser beams on one of the imaged faces of the box. In order to identify the box silhouette, we have developed a statistical model for homogeneous-background-color removal that works with a moving camera, and an efficient voting scheme for the Hough transform that allows the identification of almost collinear groups of pixels. We demonstrate the effectiveness of the proposed approach by automatically computing the dimensions of real boxes using a scanner prototype that implements the algorithms and methods described in the paper. We also present a discussion of the performed measurements, and an error propagation analysis that allows the method to estimate, from each single video frame, the uncertainty associated to all measurements made over that frame, in real-time. |
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Fernandes, Leandro Augusto FrataOliveira Neto, Manuel Menezes deSilva, Roberto daCrespo, Gustavo J.2013-06-19T01:43:46Z20060104-6500http://hdl.handle.net/10183/72567000558695This paper describes an accurate method for computing the dimensions of boxes directly from perspective projection images acquired by conventional cameras. The approach is based on projective geometry and computes the box dimensions using data extracted from the box silhouette and from the projection of two parallel laser beams on one of the imaged faces of the box. In order to identify the box silhouette, we have developed a statistical model for homogeneous-background-color removal that works with a moving camera, and an efficient voting scheme for the Hough transform that allows the identification of almost collinear groups of pixels. We demonstrate the effectiveness of the proposed approach by automatically computing the dimensions of real boxes using a scanner prototype that implements the algorithms and methods described in the paper. We also present a discussion of the performed measurements, and an error propagation analysis that allows the method to estimate, from each single video frame, the uncertainty associated to all measurements made over that frame, in real-time.application/pdfengJournal of the Brazilian Computer Society. Rio de Janeiro. Vol. 12, no. 2 (Sept. 2006), p. 19-30Computação gráficaProcessamentoImagemComputing dimensions of boxesImagebased metrologyExtraction of geometric information from scenesUncertainty analysisReal timeA fast and accurate approach for computing the dimensions of boxes from single perspective imagesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000558695.pdf000558695.pdfTexto completo (inglês)application/pdf575011http://www.lume.ufrgs.br/bitstream/10183/72567/1/000558695.pdfdc83523bc08f4ff87e16a7d515d1c4b9MD51TEXT000558695.pdf.txt000558695.pdf.txtExtracted Texttext/plain50178http://www.lume.ufrgs.br/bitstream/10183/72567/2/000558695.pdf.txt9b8ae59115694f9813ac7e0e06fc3685MD52THUMBNAIL000558695.pdf.jpg000558695.pdf.jpgGenerated Thumbnailimage/jpeg1885http://www.lume.ufrgs.br/bitstream/10183/72567/3/000558695.pdf.jpg51145db25a8cc52a305a679c72b02e20MD5310183/725672018-10-16 09:33:00.204oai:www.lume.ufrgs.br:10183/72567Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-16T12:33Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
title |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
spellingShingle |
A fast and accurate approach for computing the dimensions of boxes from single perspective images Fernandes, Leandro Augusto Frata Computação gráfica Processamento Imagem Computing dimensions of boxes Imagebased metrology Extraction of geometric information from scenes Uncertainty analysis Real time |
title_short |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
title_full |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
title_fullStr |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
title_full_unstemmed |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
title_sort |
A fast and accurate approach for computing the dimensions of boxes from single perspective images |
author |
Fernandes, Leandro Augusto Frata |
author_facet |
Fernandes, Leandro Augusto Frata Oliveira Neto, Manuel Menezes de Silva, Roberto da Crespo, Gustavo J. |
author_role |
author |
author2 |
Oliveira Neto, Manuel Menezes de Silva, Roberto da Crespo, Gustavo J. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Fernandes, Leandro Augusto Frata Oliveira Neto, Manuel Menezes de Silva, Roberto da Crespo, Gustavo J. |
dc.subject.por.fl_str_mv |
Computação gráfica Processamento Imagem |
topic |
Computação gráfica Processamento Imagem Computing dimensions of boxes Imagebased metrology Extraction of geometric information from scenes Uncertainty analysis Real time |
dc.subject.eng.fl_str_mv |
Computing dimensions of boxes Imagebased metrology Extraction of geometric information from scenes Uncertainty analysis Real time |
description |
This paper describes an accurate method for computing the dimensions of boxes directly from perspective projection images acquired by conventional cameras. The approach is based on projective geometry and computes the box dimensions using data extracted from the box silhouette and from the projection of two parallel laser beams on one of the imaged faces of the box. In order to identify the box silhouette, we have developed a statistical model for homogeneous-background-color removal that works with a moving camera, and an efficient voting scheme for the Hough transform that allows the identification of almost collinear groups of pixels. We demonstrate the effectiveness of the proposed approach by automatically computing the dimensions of real boxes using a scanner prototype that implements the algorithms and methods described in the paper. We also present a discussion of the performed measurements, and an error propagation analysis that allows the method to estimate, from each single video frame, the uncertainty associated to all measurements made over that frame, in real-time. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006 |
dc.date.accessioned.fl_str_mv |
2013-06-19T01:43:46Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/72567 |
dc.identifier.issn.pt_BR.fl_str_mv |
0104-6500 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000558695 |
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http://hdl.handle.net/10183/72567 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of the Brazilian Computer Society. Rio de Janeiro. Vol. 12, no. 2 (Sept. 2006), p. 19-30 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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