Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics

Detalhes bibliográficos
Autor(a) principal: Miranda Neto, Arthur de
Data de Publicação: 2014
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/15228
Resumo: Many applications for control of autonomous platform are being developed and one important aspect is the excess of information, frequently redundant, that imposes a great computational cost in data processing. Taking into account the temporal coherence between consecutive frames, the PCC (Pearson’s Correlation Coefficient) was proposed and applied as: discarding criteria methodology, dynamic power management solution, environment observer method which selects automatically only the regions-of-interest; and taking place in the obstacle avoidance context, as a method for collision risk estimation for vehicles in dynamic and unknown environments. Even if the PCC is a great tool to help the autonomous or semi-autonomous navigation, distortions in the imaging system, pixel noise, slight variations in the object’s position relative to the camera, and other factors produce a false PCC threshold. Whereas there are homogeneous regions in the image, in order to obtain a more realistic Pearson’s correlation, we propose to use some prior known environment information.
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spelling Pearson's correlation coefficient: a more realistic threshold for applications on autonomous roboticsPearson’s correlationMobile robotsAutonomous roboticsCorrelação de PearsonRobôs móveisRobótica autónomaMany applications for control of autonomous platform are being developed and one important aspect is the excess of information, frequently redundant, that imposes a great computational cost in data processing. Taking into account the temporal coherence between consecutive frames, the PCC (Pearson’s Correlation Coefficient) was proposed and applied as: discarding criteria methodology, dynamic power management solution, environment observer method which selects automatically only the regions-of-interest; and taking place in the obstacle avoidance context, as a method for collision risk estimation for vehicles in dynamic and unknown environments. Even if the PCC is a great tool to help the autonomous or semi-autonomous navigation, distortions in the imaging system, pixel noise, slight variations in the object’s position relative to the camera, and other factors produce a false PCC threshold. Whereas there are homogeneous regions in the image, in order to obtain a more realistic Pearson’s correlation, we propose to use some prior known environment information.David Publishing Company2017-08-18T13:31:06Z2017-08-18T13:31:06Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMIRANDA NETO, A. de. Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics. Computer Technology and Application, [S. l.], v. 5, p. 69-72, 2014.http://repositorio.ufla.br/jspui/handle/1/15228Computer Technology and Applicationreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAMiranda Neto, Arthur deinfo:eu-repo/semantics/openAccesseng2023-05-03T11:30:36Zoai:localhost:1/15228Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-03T11:30:36Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
title Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
spellingShingle Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
Miranda Neto, Arthur de
Pearson’s correlation
Mobile robots
Autonomous robotics
Correlação de Pearson
Robôs móveis
Robótica autónoma
title_short Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
title_full Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
title_fullStr Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
title_full_unstemmed Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
title_sort Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
author Miranda Neto, Arthur de
author_facet Miranda Neto, Arthur de
author_role author
dc.contributor.author.fl_str_mv Miranda Neto, Arthur de
dc.subject.por.fl_str_mv Pearson’s correlation
Mobile robots
Autonomous robotics
Correlação de Pearson
Robôs móveis
Robótica autónoma
topic Pearson’s correlation
Mobile robots
Autonomous robotics
Correlação de Pearson
Robôs móveis
Robótica autónoma
description Many applications for control of autonomous platform are being developed and one important aspect is the excess of information, frequently redundant, that imposes a great computational cost in data processing. Taking into account the temporal coherence between consecutive frames, the PCC (Pearson’s Correlation Coefficient) was proposed and applied as: discarding criteria methodology, dynamic power management solution, environment observer method which selects automatically only the regions-of-interest; and taking place in the obstacle avoidance context, as a method for collision risk estimation for vehicles in dynamic and unknown environments. Even if the PCC is a great tool to help the autonomous or semi-autonomous navigation, distortions in the imaging system, pixel noise, slight variations in the object’s position relative to the camera, and other factors produce a false PCC threshold. Whereas there are homogeneous regions in the image, in order to obtain a more realistic Pearson’s correlation, we propose to use some prior known environment information.
publishDate 2014
dc.date.none.fl_str_mv 2014
2017-08-18T13:31:06Z
2017-08-18T13:31:06Z
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 MIRANDA NETO, A. de. Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics. Computer Technology and Application, [S. l.], v. 5, p. 69-72, 2014.
http://repositorio.ufla.br/jspui/handle/1/15228
identifier_str_mv MIRANDA NETO, A. de. Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics. Computer Technology and Application, [S. l.], v. 5, p. 69-72, 2014.
url http://repositorio.ufla.br/jspui/handle/1/15228
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv David Publishing Company
publisher.none.fl_str_mv David Publishing Company
dc.source.none.fl_str_mv Computer Technology and Application
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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