Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/19990
Title: New change detection technique using ASTER and CBERS-2 images to monitor Amazon tropical forest
Authors: Santos, João Roberto dos
Maldonado, Francisco Dario
Graça, Paulo Maurício Lima Alencastro de
Keywords: Charge Coupled Devices
Degradation
Forestry
Monitoring
Radiometry
Sensors
Thermal Stratification
Threshold Elements
Timber
Amazon
Cbers-2
Change Detection
Land Cover
Tropical Forests
Demodulation
Detection
Forests
Radiometry
Issue Date: 2005
Publisher: International Geoscience and Remote Sensing Symposium (IGARSS)
metadata.dc.relation.ispartof: Volume 7, Pags. 5026-5028
Abstract: With the availability of CCD/CBERS-2 images, the objective of this research is to show the technique on "Radiometric rotation controlled by a no-change axis (RCEN)", using a multi-temporal comparison with the image from ASTER/TERRA. The result of this technique is a change-detection image derived from the date integration of both sensors mentioned, whose continuous image (floating-point numbers) was transformed into a thematic image through the procedure of slicing and labelling with four thresholds. This allows the stratification of spectral attributes in five thematic classes: two related to degradation, two referring to regeneration and one of no-change. From this point on a map of changes 2003/2004 was generated, illustrating the distribution of the five thematic categories mentioned at the transition forest zone, which is suffering strongly under the impact of the agricultural frontier, cattle raising and also, timber exploitation activities. © 2005 IEEE.
metadata.dc.identifier.doi: 10.1109/IGARSS.2005.1526807
Appears in Collections:Trabalhos Apresentados em Evento

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