A novel blocking effect reduction method based on human visual system features

Detalhes bibliográficos
Autor(a) principal: Iano, Yuzo, 1950-
Data de Publicação: 2011
Outros Autores: Gradvohl, André Leon Sampaio, 1973-
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório da Produção Científica e Intelectual da Unicamp
Texto Completo: https://hdl.handle.net/20.500.12733/8855
Resumo: Agradecimentos: The authors would like to acknowledge the financial support of The Coordination of High-Level Personnel Training (CAPES)
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spelling A novel blocking effect reduction method based on human visual system featuresProcessamento de imagens - Técnicas digitaisImage processing - Digital techniquesBlocking effectHuman visual systemPost-processing methodsArtigo originalAgradecimentos: The authors would like to acknowledge the financial support of The Coordination of High-Level Personnel Training (CAPES)Abstract: In this paper, we present a brief study about the performance of nine post-processing methods on blocked images, and two new approaches which propose, respectively, the reduction of the blocking artifact and a measure for the visual perception of the Human Visual System (HVS) regarding this distortion. The studies concerning the chosen methods consist of detailed analysis about their methodology and their computational implementation. A new visual perception metric is introduced, which is called Blocking Visual Effect Index (BVEI). It is based on loss of correlation criteria in inter-blocks regions, distortion of local average luminance, and takes into account the contrast perception sensibility of human eye. The proposed post-processing method considers the features of HVS when varying the smoothing parameter inside the blocking areas in accordance with the perception of blocking artifacts. Thus, they are smoothed without loss of details. Aiming at obtaining a consistence with subjective evaluation of postprocessed images, this work provides comparative tests for evaluating the performance of the chosen methods and the proposed one, Also it emphasizes the efficiency of the new quality metric. This efficiency is evidenced by the increase of quality of post-processing images, regarding the test imagesCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESAbertoUNIVERSIDADE ESTADUAL DE CAMPINASIano, Yuzo, 1950-Gradvohl, André Leon Sampaio, 1973-2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.12733/8855IANO, Yuzo; GRADVOHL, André Leon Sampaio. A novel blocking effect reduction method based on human visual system features. Revista ciência e tecnologia. Campinas, SP. v. 14, n. 24-25, p. 37-50, 2011. Disponível em: https://hdl.handle.net/20.500.12733/8855. Acesso em: 7 mai. 2024.https://repositorio.unicamp.br/acervo/detalhe/1267626porreponame:Repositório da Produção Científica e Intelectual da Unicampinstname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPinfo:eu-repo/semantics/openAccess2023-11-27T12:53:39Zoai:https://www.repositorio.unicamp.br/:1267626Repositório InstitucionalPUBhttp://repositorio.unicamp.br/oai/requestreposip@unicamp.bropendoar:2023-11-27T12:53:39Repositório da Produção Científica e Intelectual da Unicamp - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv A novel blocking effect reduction method based on human visual system features
title A novel blocking effect reduction method based on human visual system features
spellingShingle A novel blocking effect reduction method based on human visual system features
Iano, Yuzo, 1950-
Processamento de imagens - Técnicas digitais
Image processing - Digital techniques
Blocking effect
Human visual system
Post-processing methods
Artigo original
title_short A novel blocking effect reduction method based on human visual system features
title_full A novel blocking effect reduction method based on human visual system features
title_fullStr A novel blocking effect reduction method based on human visual system features
title_full_unstemmed A novel blocking effect reduction method based on human visual system features
title_sort A novel blocking effect reduction method based on human visual system features
author Iano, Yuzo, 1950-
author_facet Iano, Yuzo, 1950-
Gradvohl, André Leon Sampaio, 1973-
author_role author
author2 Gradvohl, André Leon Sampaio, 1973-
author2_role author
dc.contributor.none.fl_str_mv UNIVERSIDADE ESTADUAL DE CAMPINAS
dc.contributor.author.fl_str_mv Iano, Yuzo, 1950-
Gradvohl, André Leon Sampaio, 1973-
dc.subject.por.fl_str_mv Processamento de imagens - Técnicas digitais
Image processing - Digital techniques
Blocking effect
Human visual system
Post-processing methods
Artigo original
topic Processamento de imagens - Técnicas digitais
Image processing - Digital techniques
Blocking effect
Human visual system
Post-processing methods
Artigo original
description Agradecimentos: The authors would like to acknowledge the financial support of The Coordination of High-Level Personnel Training (CAPES)
publishDate 2011
dc.date.none.fl_str_mv 2011
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 https://hdl.handle.net/20.500.12733/8855
IANO, Yuzo; GRADVOHL, André Leon Sampaio. A novel blocking effect reduction method based on human visual system features. Revista ciência e tecnologia. Campinas, SP. v. 14, n. 24-25, p. 37-50, 2011. Disponível em: https://hdl.handle.net/20.500.12733/8855. Acesso em: 7 mai. 2024.
url https://hdl.handle.net/20.500.12733/8855
identifier_str_mv IANO, Yuzo; GRADVOHL, André Leon Sampaio. A novel blocking effect reduction method based on human visual system features. Revista ciência e tecnologia. Campinas, SP. v. 14, n. 24-25, p. 37-50, 2011. Disponível em: https://hdl.handle.net/20.500.12733/8855. Acesso em: 7 mai. 2024.
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://repositorio.unicamp.br/acervo/detalhe/1267626
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.source.none.fl_str_mv reponame:Repositório da Produção Científica e Intelectual da Unicamp
instname:Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
instname_str Universidade Estadual de Campinas (UNICAMP)
instacron_str UNICAMP
institution UNICAMP
reponame_str Repositório da Produção Científica e Intelectual da Unicamp
collection Repositório da Produção Científica e Intelectual da Unicamp
repository.name.fl_str_mv Repositório da Produção Científica e Intelectual da Unicamp - Universidade Estadual de Campinas (UNICAMP)
repository.mail.fl_str_mv reposip@unicamp.br
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