Sistemas distribuídos aplicados à compressão e recuperação de imagens
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226328 |
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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Sistemas distribuídos aplicados à compressão e recuperação de imagensDistributed systems applied to image compression and recoveryDigital image processingDistributed systemsMPIDigital 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.Departamento de Engenharia de Petróleo Faculdade de Engenharia Mecânica Universidade Estadual de Campinas, Rua Mendeleiev, s/n, Campinas, 13083-970, São PauloDepartamento de Engenharia Elétrica Universidade Estadual Paulista, Ilha Solteira, São PauloDepartamento de Engenharia Elétrica Universidade Estadual Paulista, Ilha Solteira, São PauloUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)Gostaldon, Fabio Jorge AssadShinoda, Ailton Akira [UNESP]2022-04-28T22:37:20Z2022-04-28T22:37:20Z2008-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-7Acta Scientiarum - Technology, v. 30, n. 1, p. 1-7, 2008.1806-2563http://hdl.handle.net/11449/2263282-s2.0-79956266407Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporActa Scientiarum - Technologyinfo:eu-repo/semantics/openAccess2024-07-04T19:06:48Zoai:repositorio.unesp.br:11449/226328Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:11:26.090935Repositório 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 Gostaldon, Fabio Jorge Assad Digital image processing Distributed systems MPI |
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 |
Gostaldon, Fabio Jorge Assad |
author_facet |
Gostaldon, Fabio Jorge Assad 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 |
Gostaldon, Fabio Jorge Assad Shinoda, Ailton Akira [UNESP] |
dc.subject.por.fl_str_mv |
Digital image processing Distributed systems MPI |
topic |
Digital image processing Distributed systems MPI |
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 |
2008-12-01 2022-04-28T22:37:20Z 2022-04-28T22:37:20Z |
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 |
Acta Scientiarum - Technology, v. 30, n. 1, p. 1-7, 2008. 1806-2563 http://hdl.handle.net/11449/226328 2-s2.0-79956266407 |
identifier_str_mv |
Acta Scientiarum - Technology, v. 30, n. 1, p. 1-7, 2008. 1806-2563 2-s2.0-79956266407 |
url |
http://hdl.handle.net/11449/226328 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Acta Scientiarum - Technology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-7 |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808129497904447488 |