Geometric evaluation of SPOT5 image using rigorous sensor model and simple polynomial direct location model

Dongmei Yan; Fenfei Wang; Tianyou Kou; Shirong Chen

doi:10.1117/12.872960

3 November 2010 Geometric evaluation of SPOT5 image using rigorous sensor model and simple polynomial direct location model

Dongmei Yan, Fenfei Wang, Tianyou Kou, Shirong Chen

Author Affiliations +

Proceedings Volume 7840, Sixth International Symposium on Digital Earth: Models, Algorithms, and Virtual Reality; 78401U (2010) https://doi.org/10.1117/12.872960
Event: The Sixth International Symposium on Digital Earth, 2009, Beijing, China

Abstract

With the start tracker and Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS), SPOT5 satellite point positioning error is lower than 50m. In this paper, two terrains, mountainous areas and plain areas, are defined by terrain gradient. The ground check points are chosen on these terrains with the geometric error and the elevation error both lower than 1m. The coordinate in UTM of each point is calculated both in the Rigorous Sensor Model and the Simple Polynomial Direct Location Model, and the differences between the computed coordinates and the surveyed coordinates are discussed. According to the experiment results, the two models have their own advantage in different circumstances. In mountainous areas, the Rigorous Sensor Model can get higher location accuracy. In plain areas, the two models can locate with same accuracy, but the Simple Polynomial Direct Location Model performs better in the aspect of speed and the simplicity.

Citation Download Citation

Dongmei Yan, Fenfei Wang, Tianyou Kou, and Shirong Chen "Geometric evaluation of SPOT5 image using rigorous sensor model and simple polynomial direct location model", Proc. SPIE 7840, Sixth International Symposium on Digital Earth: Models, Algorithms, and Virtual Reality, 78401U (3 November 2010); https://doi.org/10.1117/12.872960

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