Sistemas distribuídos aplicados à compressão e recuperação de imagens

Detalhes bibliográficos
Autor(a) principal: Assad Gostaldon, Fabio Jorge
Data de Publicação: 2008
Outros Autores: Shinoda, Ailton Akira [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4025/actascitechnol.v30i1.3178
http://hdl.handle.net/11449/9881
Resumo: Digital image processing is a field that demands great processing capacity. As such it becomes relevant to implement software that is based on the distribution of the processing into several nodes divided by computers belonging to the same network. Specifically discussed in this work are distributed algorithms of compression and expansion of images using the discrete cosine transform. The results show that the savings in processing time obtained due to the parallel algorithms in comparison to its sequential equivalents is a function that depends on the resolution of the image and the complexity of the involved calculation; that is efficiency is greater the longer the processing period is in terms of the time involved for the communication between the network points.
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spelling Sistemas distribuídos aplicados à compressão e recuperação de imagensDistributed systems applied to image compression and recoveryMPIdigital image processingdistributed systemsDigital image processing is a field that demands great processing capacity. As such it becomes relevant to implement software that is based on the distribution of the processing into several nodes divided by computers belonging to the same network. Specifically discussed in this work are distributed algorithms of compression and expansion of images using the discrete cosine transform. The results show that the savings in processing time obtained due to the parallel algorithms in comparison to its sequential equivalents is a function that depends on the resolution of the image and the complexity of the involved calculation; that is efficiency is greater the longer the processing period is in terms of the time involved for the communication between the network points.Univ Estadual Campinas, Fac Engn Mecan, Dept Petr Engn, BR-13083970 Campinas, SP, BrazilUniv Estadual Paulista, Dept Engn Eletr, São Paulo, BrazilUniv Estadual Paulista, Dept Engn Eletr, São Paulo, BrazilUniversidade Estadual de Maringá (UEM), Pro-reitoria Pesquisa Pos-graduacaoUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (Unesp)Assad Gostaldon, Fabio JorgeShinoda, Ailton Akira [UNESP]2014-05-20T13:29:21Z2014-05-20T13:29:21Z2008-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article01/julapplication/pdfhttp://dx.doi.org/10.4025/actascitechnol.v30i1.3178Acta Scientiarum-technology. Maringa: Universidade Estadual de Maringá (UEM), Pro-reitoria Pesquisa Pos-graduacao, v. 30, n. 1, p. 1-7, 2008.1806-2563http://hdl.handle.net/11449/988110.4025/actascitechnol.v30i1.3178WOS:000259929600001WOS000259929600001.pdf9387430150792972Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporActa Scientiarum: Technology0.2310,168info:eu-repo/semantics/openAccess2024-07-04T19:06:36Zoai:repositorio.unesp.br:11449/9881Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:20:19.585672Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Sistemas distribuídos aplicados à compressão e recuperação de imagens
Distributed systems applied to image compression and recovery
title Sistemas distribuídos aplicados à compressão e recuperação de imagens
spellingShingle Sistemas distribuídos aplicados à compressão e recuperação de imagens
Assad Gostaldon, Fabio Jorge
MPI
digital image processing
distributed systems
title_short Sistemas distribuídos aplicados à compressão e recuperação de imagens
title_full Sistemas distribuídos aplicados à compressão e recuperação de imagens
title_fullStr Sistemas distribuídos aplicados à compressão e recuperação de imagens
title_full_unstemmed Sistemas distribuídos aplicados à compressão e recuperação de imagens
title_sort Sistemas distribuídos aplicados à compressão e recuperação de imagens
author Assad Gostaldon, Fabio Jorge
author_facet Assad Gostaldon, Fabio Jorge
Shinoda, Ailton Akira [UNESP]
author_role author
author2 Shinoda, Ailton Akira [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual de Campinas (UNICAMP)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Assad Gostaldon, Fabio Jorge
Shinoda, Ailton Akira [UNESP]
dc.subject.por.fl_str_mv MPI
digital image processing
distributed systems
topic MPI
digital image processing
distributed systems
description Digital image processing is a field that demands great processing capacity. As such it becomes relevant to implement software that is based on the distribution of the processing into several nodes divided by computers belonging to the same network. Specifically discussed in this work are distributed algorithms of compression and expansion of images using the discrete cosine transform. The results show that the savings in processing time obtained due to the parallel algorithms in comparison to its sequential equivalents is a function that depends on the resolution of the image and the complexity of the involved calculation; that is efficiency is greater the longer the processing period is in terms of the time involved for the communication between the network points.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
2014-05-20T13:29:21Z
2014-05-20T13:29:21Z
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://dx.doi.org/10.4025/actascitechnol.v30i1.3178
Acta Scientiarum-technology. Maringa: Universidade Estadual de Maringá (UEM), Pro-reitoria Pesquisa Pos-graduacao, v. 30, n. 1, p. 1-7, 2008.
1806-2563
http://hdl.handle.net/11449/9881
10.4025/actascitechnol.v30i1.3178
WOS:000259929600001
WOS000259929600001.pdf
9387430150792972
url http://dx.doi.org/10.4025/actascitechnol.v30i1.3178
http://hdl.handle.net/11449/9881
identifier_str_mv Acta Scientiarum-technology. Maringa: Universidade Estadual de Maringá (UEM), Pro-reitoria Pesquisa Pos-graduacao, v. 30, n. 1, p. 1-7, 2008.
1806-2563
10.4025/actascitechnol.v30i1.3178
WOS:000259929600001
WOS000259929600001.pdf
9387430150792972
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Acta Scientiarum: Technology
0.231
0,168
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 01/jul
application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá (UEM), Pro-reitoria Pesquisa Pos-graduacao
publisher.none.fl_str_mv Universidade Estadual de Maringá (UEM), Pro-reitoria Pesquisa Pos-graduacao
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_ 1808129311109021696

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