Visual navigation for the blind: path and obstacle detection

Detalhes bibliográficos
Autor(a) principal: José, João
Data de Publicação: 2012
Outros Autores: Rodrigues, J. M. F., du Buf, J. M. H.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/2094
Resumo: We present a real-time vision system to assist blind and visually impaired persons. This system complements the white cane, and it can be used both indoor and outdoor. It detects borders of paths and corridors, obstacles within the borders, and it provides guidance for centering and obstacle avoidance. Typical obstacles are backpacks, trash cans, trees, light poles, holes, branches, stones and other objects at a distance of 2 to 5 meters from the camera position. Walkable paths are detected by edges and an adapted Hough transform. Obstacles are detected by a combination of three algorithms: zero crossings of derivatives, histograms of binary edges, and Laws’ texture masks.
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spelling Visual navigation for the blind: path and obstacle detectionVisão computacionalPath detectionObstacle avoidanceObstacle detectionWe present a real-time vision system to assist blind and visually impaired persons. This system complements the white cane, and it can be used both indoor and outdoor. It detects borders of paths and corridors, obstacles within the borders, and it provides guidance for centering and obstacle avoidance. Typical obstacles are backpacks, trash cans, trees, light poles, holes, branches, stones and other objects at a distance of 2 to 5 meters from the camera position. Walkable paths are detected by edges and an adapted Hough transform. Obstacles are detected by a combination of three algorithms: zero crossings of derivatives, histograms of binary edges, and Laws’ texture masks.SapientiaJosé, JoãoRodrigues, J. M. F.du Buf, J. M. H.2013-01-16T13:30:53Z2012-022012-12-27T16:01:03Z2012-02-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10400.1/2094engAUT: JRO00913; DUB00865;info: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:RCAAP2024-11-29T10:39:03Zoai:sapientia.ualg.pt:10400.1/2094Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-29T10:39:03Repositório 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 Visual navigation for the blind: path and obstacle detection
title Visual navigation for the blind: path and obstacle detection
spellingShingle Visual navigation for the blind: path and obstacle detection
José, João
Visão computacional
Path detection
Obstacle avoidance
Obstacle detection
title_short Visual navigation for the blind: path and obstacle detection
title_full Visual navigation for the blind: path and obstacle detection
title_fullStr Visual navigation for the blind: path and obstacle detection
title_full_unstemmed Visual navigation for the blind: path and obstacle detection
title_sort Visual navigation for the blind: path and obstacle detection
author José, João
author_facet José, João
Rodrigues, J. M. F.
du Buf, J. M. H.
author_role author
author2 Rodrigues, J. M. F.
du Buf, J. M. H.
author2_role author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv José, João
Rodrigues, J. M. F.
du Buf, J. M. H.
dc.subject.por.fl_str_mv Visão computacional
Path detection
Obstacle avoidance
Obstacle detection
topic Visão computacional
Path detection
Obstacle avoidance
Obstacle detection
description We present a real-time vision system to assist blind and visually impaired persons. This system complements the white cane, and it can be used both indoor and outdoor. It detects borders of paths and corridors, obstacles within the borders, and it provides guidance for centering and obstacle avoidance. Typical obstacles are backpacks, trash cans, trees, light poles, holes, branches, stones and other objects at a distance of 2 to 5 meters from the camera position. Walkable paths are detected by edges and an adapted Hough transform. Obstacles are detected by a combination of three algorithms: zero crossings of derivatives, histograms of binary edges, and Laws’ texture masks.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
2012-12-27T16:01:03Z
2012-02-01T00:00:00Z
2013-01-16T13:30:53Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/2094
url http://hdl.handle.net/10400.1/2094
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv AUT: JRO00913; DUB00865;
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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 mluisa.alvim@gmail.com
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