| 1. Identificação | |
| Tipo de Referência | Artigo em Evento (Conference Proceedings) |
| Site | mtc-m12.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 6qtX3pFwXQZ3r59YD6/GNyaf |
| Repositório | sid.inpe.br/iris@1912/2005/07.19.05.29 |
| Última Atualização | 2015:08.26.12.50.06 (UTC) marciana |
| Repositório de Metadados | sid.inpe.br/iris@1912/2005/07.19.05.29.46 |
| Última Atualização dos Metadados | 2018:06.05.00.56.12 (UTC) administrator |
| Rótulo | 1140 |
| Chave de Citação | DutraMasc:1980:TeEdDe |
| Título | Texture edge detection by propagation and shrinking  |
| Ano | 1980 |
| Data Secundária | 19920226 |
| Data de Acesso | 12 maio 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 116 KiB |
| 2. Contextualização | |
| Autor | 1 Dutra, Luciano Vieira 2 Mascarenhas, Nelson Delfino D'Avila |
| Grupo | 1 DPI-INPE-BR 2 DPI-INPE-BR |
| Nome do Evento | Symposium on Machine Processing of Remotely Sensed Data, 6. |
| Localização do Evento | West Lafayette, USA |
| Data | 03-06 June 1980 |
| Título do Livro | Proceedings |
| Histórico (UTC) | 2008-06-09 19:39:28 :: administrator -> jefferson :: 2010-07-07 18:45:06 :: jefferson -> administrator :: 2015-05-18 12:34:55 :: administrator -> marciana :: 1980 2015-08-26 12:50:06 :: marciana -> administrator :: 1980 2016-06-04 23:29:00 :: administrator -> marciana :: 1980 2016-09-02 00:21:06 :: marciana -> administrator :: 1980 2018-06-05 00:56:12 :: administrator -> marciana :: 1980 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Tipo de Versão | publisher |
| Palavras-Chave | detection propagation shrinking |
| Resumo | The problem of detecting edges between diferently texturedregions is important segmentation of remotely sensed images. However, the concept of texture is difficult to be precisely defined and there seems to be no unique way to caracterize texture. One possible approach is through the use of edge detection algorithms and is these terms texture is conceived as edgeness per unit area. Regions that posses a wide variation in tone will be characterized by a high concentration of local edges and apposite is true for smooth regions. The algorithm for texture edge detection thath is proposed in this paper is based on the detection of local edges followed by the processes of propagation and shrinking of regions and the determination of the periphery of the resulting sets. The local edges detection method is formulated in statistical terms and it leads to the solution of a hipothesys testing problem. Similar results could be obtained by using differentiation techiniques like the gradient, for example. After the local edges are detected, a propagation process, followed by a shrinking process, will tend to eliminate the holes and the isolated points in the binary image defined by the local edges. The border of the textured regions is obtained by determining the periphery of the resulting connected components sets S's through the computation of the set of points with unitary distance to S (the complement of S). This set can be obtained through a shrinking process. Variations of the methods oh propagation and shrinking were also attempted. These variations are based on thresholds on the number of neighbors (on a 8-neighboorhood)of a point, that determine whether the point remain in S, move from S to S or vice-versa. The methods were tested on Landsat images of the State of Mato Grosso, Brasil. Preliminary results seem ti indicate that the variations of the propagation and shrinking methods based on the use of thresholds tend to give edges that are more continous. |
| Área | SRE |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDPI > Texture edge detection... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/6qtX3pFwXQZ3r59YD6/GNyaf |
| URL dos dados zipados | http://urlib.net/zip/6qtX3pFwXQZ3r59YD6/GNyaf |
| Idioma | en |
| Arquivo Alvo | 1980_dutra.pdf |
| Grupo de Usuários | administrator marciana |
| Grupo de Leitores | administrator marciana |
| Visibilidade | shown |
| Permissão de Leitura | allow from all |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EQCCU5 |
| Acervo Hospedeiro | sid.inpe.br/banon/2001/04.06.10.52 |
| 6. Notas | |
| Campos Vazios | affiliation archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor electronicmailaddress format isbn issn lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress resumeid rightsholder schedulinginformation secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |