Pearson's correlation coefficient: a more realistic threshold for applications on autonomous robotics
Autor(a) principal: | |
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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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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 |
_version_ |
1815439286064906240 |