Analysis of Deforestation in Ucayali-Peru Using Satellite Imagery from Sentinel-2

Diego Velayarce, Manuel Alvarez, Diego Guevara, Victor Murray

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva


We propose a combination of methods for processing multitemporal multispectral satellite images to identify variations in vegetation indices for fixed regions across time to analyze deforestation in Peru. The images, taken from a location in Ucayali, Peru, are obtained from public repositories for Sentinel-2 satellite, which covers up to 13 spectral band layers with spatial resolutions of 10, 20, and 60 m and have a temporal resolution of 5 days with the same angle vision. We preprocessed the images for cloud and river removal and normalization to apply the normalized difference vegetation index (NDVI). All images were segmented with their corresponding model, leading to the analysis of the variance of this segmentation information across different time frames for a single location in which the normalized difference of time series (NDTS) was obtained for each year. Finally, a first approach was built for a linear regression model that could segment each frame into sectors, according to vegetation density, using the multispectral features as parameters. For the selected location, the results show an increment from about 4200 ha in 2018 to about 8200 in 2020.

Idioma originalInglés
Título de la publicación alojadaProceedings of the 6th Brazilian Technology Symposium, BTSym 2020 - Emerging Trends and Challenges in Technology
EditoresYuzo Iano, Osamu Saotome, Guillermo Kemper, Ana Claudia Mendes de Seixas, Gabriel Gomes de Oliveira
EditorialSpringer Science and Business Media Deutschland GmbH
Número de páginas9
ISBN (versión impresa)9783030756796
EstadoPublicada - 2021
Publicado de forma externa
Evento6th Brazilian Technology Symposium, BTSym 2020 - Virtual, Online
Duración: 26 oct. 202028 oct. 2020

Serie de la publicación

NombreSmart Innovation, Systems and Technologies
ISSN (versión impresa)2190-3018
ISSN (versión digital)2190-3026


Conferencia6th Brazilian Technology Symposium, BTSym 2020
CiudadVirtual, Online


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