The use of CBERS image in the delimitation of small cities boundaries in the Brazilian Amazonia region

Autores/as

  • Sandra Maria Fonseca Da Costa
  • Diogo Correa Da Silva
  • Viviana Mendes Lima

Palabras clave:

CBERS- HCR image, high resolution image, urban area delimitation, Brazilian Amazon towns.

Resumen

This paper analyzes the use of CBERS (China-Brazil Earth Resources Satellite) high resolution images to map urban limits of a small city in the Amazon Region of Brazil. The use of Sino-Brazilian satellite images to study small cities of the Brazilian Amazon Region is also discussed. A HCR image was used to classify the image of the study area into four classes: urban, forest, clouds, and shadows, by visual interpretation. This map was compared with another map produced with unsupervised classification. A confusion matrix was produced to evaluate the accuracy of unsupervised classification. Comparison between the reference map (visual interpretation) and the unsupervised classification map verified that 82.8% of the areas were classified correctly. This ability to recognize and delimitate small cities in Amazonia demonstrates the quality of the CBERS – HCR image.

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Cómo citar

Fonseca Da Costa, S. M., Correa Da Silva, D., & Mendes Lima, V. (2014). The use of CBERS image in the delimitation of small cities boundaries in the Brazilian Amazonia region. GeoFocus. Revista Internacional De Ciencia Y Tecnología De La Información Geográfica, (11), 207–225. Recuperado a partir de https://www.geofocus.org/index.php/geofocus/article/view/218

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