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Study of 2D and 3D Geometric Models Applied on SAR Images (A Case Study in BAM Area)

In English

Författare

Summary, in English

study several 2D and 3D math models have been tested in order to correct slant range SAR data geometrically. Some of these models consider the imaging geometry at the time of imaging while the others relate the ground space to the image one by mathematical polynomials. The images used here are 3 ENVISAT ones of Bam area. In order to extract the 3D GCPs, a topographic map with a scale of 1:25000 and SRTM DEM were used. The 2D math models used in this study include Global polynomial, Point wise, Piece wise and Projective while the 3D models are DLT and Rigorous SAR model. Since the images used in this study were originally ordered for interferometry studies, their baseline is so small that the precision of 3D coordinates extraction is not satisfactory enough. However, the results of 2D models are much better.

Publiceringsår

2007

Språk

Engelska

Sidor

186-194

Publikation/Tidskrift/Serie

Geosciences Scientific Quarterly Journal (ULUM-I ZAMIN)

Volym

17

Issue

65

Dokumenttyp

Artikel i tidskrift

Förlag

Sāzmān-i zamīnʼshināsī kishvar, Tihrān

Ämne

  • Physical Geography

Nyckelord

  • RADAR
  • SAR IMAGES
  • GEOMETRIC CORRECTION
  • CONTROL POINT
  • RADARGRAMMETRY

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1023-7429