Geometric correction accuracy of IRS-1D PAN imagery using topographic map versus GPS control points


Turker M., Gacemer A.

INTERNATIONAL JOURNAL OF REMOTE SENSING, cilt.25, ss.1095-1104, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 25 Konu: 6
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1080/0143116031000150086
  • Dergi Adı: INTERNATIONAL JOURNAL OF REMOTE SENSING
  • Sayfa Sayıları: ss.1095-1104

Özet

Geometric correction accuracy of IRS-1D panchromatic imagery was investigated using GPS- and 1 : 25 000 scale topographic map-derived control points. The differentially corrected GPS-derived coordinates provided markedly more accurate results than did uncorrected handheld GPS- and map-derived GCPs. The rms error value of differentially corrected GPS-derived control points based on second-degree polynomial was in the order of +/-3 m. Geometric corrections made with second-degree polynomials, using both the map- and uncorrected handheld GPS-derived control points, yielded rms error values in the order of +/-5 m. The results revealed that the uncorrected handheld GPS-derived control points can be a valuable alternative to planimetric control for geometric correction of IRS-1C/D panchromatic imagery with one-pixel size accuracy.