Validation of Geometric correction in Cbers-1's HR CCD-high resolution charge-coupled device- camera images

Authors

  • RAFAEL PEREIRA ZANARDI Centro Estadual de Pesquisas em Sensoriamento Remoto e Meteorologia – CEPSRM
  • SILVIA BEATRIZ ALVES ROLIM Centro Estadual de Pesquisas em Sensoriamento Remoto e Meteorologia – CEPSRM
  • CLÁUDIO BIELENKI JÚNIOR Agência Nacional de Águas -ANA
  • CARLOS ALUISIO MESQUITA DE ALMEIDA Centro Estadual de Pesquisas em Sensoriamento Remoto e Meteorologia – CEPSRM

DOI:

https://doi.org/10.22456/1807-9806.19548

Keywords:

remote sensing, CBERS, georeference, cartography.

Abstract

In this work it was analyzed the validation of CBERS-1 (China and Brazillian Earth Resourses Satellite) data related to qualitative and quantitative parameters that define the precision of its georeferencing. A topographical survey was carried out for the acquisition of ground control points spatially well distributed in the study area, employing differential GPS, aiming at the georeferencing of the image. Tests with different numbers of sampling points and several methods of Geometric Transformation and Resampling were made during the georeferencing. These results were statistically analyzed to determine the best method to georeference CBERS-1 images. It was verified that the first-degree polinomial transformation with nearest neighborhood resampling presented the best result, showing a precision of 18,52m.

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Published

2005-12-31

How to Cite

ZANARDI, R. P., ROLIM, S. B. A., BIELENKI JÚNIOR, C., & DE ALMEIDA, C. A. M. (2005). Validation of Geometric correction in Cbers-1’s HR CCD-high resolution charge-coupled device- camera images. Pesquisas Em Geociências, 32(2), 81–87. https://doi.org/10.22456/1807-9806.19548

Issue

Vol. 32 No. 2 (2005): Pesquisas em Geociências

Section

Articles