Abordagem colaborativa para segmentação de áreas degradadas e regeneradas

• Ano de defesa: 2020
• Autor(a) principal: Pereira, Rodolfo Luiz Cugler
• Orientador(a): Felipussi, Siovani Cintra
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Carlos; Câmpus Sorocaba
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciência da Computação - PPGCC-So
• Palavras-chave em Português: Desmatamento; Sensoriamento remoto; Método de segmentação
• Palavras-chave em Inglês: Deforestation; Remote sensing; Segmentation method
• Área do conhecimento CNPq: CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO::METODOLOGIA E TECNICAS DA COMPUTACAO; CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO::SISTEMAS DE COMPUTACAO
• Link de acesso: https://repositorio.ufscar.br/handle/20.500.14289/13113

Forests have huge environmental, social and economic importance. However, over the years they have been destroyed and transformed into pastures, agricultural fields, etc. Due to the popularity of remote sensing images, specifically the images acquired by the Landsat satellite series, several studies were proposed to find, monitor and analyze deforestation rates. However, researches indicate that images with higher spatial resolutions can overcome the results. Segmentation of remote sensing images is a crucial factor to support the inspection of deforested areas. Literature has different segmentation and pattern recognition techniques that have been used to solve this problem. Furthermore, these studies show the results of hybrid segmentation methods are better than single methods. Therefore, this research proposes a collaborative framework to segment and classify deforested areas. This approach analyzes four different segmentation methods (SAVI, AM techniques, multi-scale segmentation method and the marker-controlled watershed-based segmentation method) to suggest deforested areas in the State of São Paulo, Brazil. Results were compared with real environmental infractions found by the Military Environmental Police of the State of São Paulo manually and proved to be promising. Therefore, the proposal for a collaborative approach to suggest degraded areas becomes relevant as an approach to help the inspection of deforestation by police.