標題: Geometric Integration of Heterogeneous Models for Multisatellite Image Positioning
作者: Chen, Liang-Chien
Chang, Wen-Chi
Teo, Tee-Ann
土木工程學系
Department of Civil Engineering
關鍵字: Direct georeferencing (DG);least squares collocation (LSC);rational function model (RFM)
公開日期: 1-七月-2012
摘要: With the wider availability of more and more images acquired from various satellites, the integration of different orientation models for different sensors has become an important task in order to maintain geometrical consistency. This study combines two heterogeneous geometric correction models, namely, direct georeferencing and the rational function model for multi-satellite image positioning. Two types of adjustment models, collocation-based block adjustment (CBBA) and collocation-aided block adjustment (CABA), are proposed to reach the goal. The former is based on the concept that the adjustment is first performed on individual images, and then, all images are integrated. Discrepancies are compensated for by least squares collocation (LSC). The latter method entails simultaneous adjustment of the two heterogeneous models followed by LSC. Experimental results indicate that the proposed method can significantly improve the geometric accuracy as well as reduce geometric discrepancies between images. We also demonstrate that CABA is slightly better than CBBA.
URI: http://hdl.handle.net/11536/16454
ISSN: 0196-2892
期刊: IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Volume: 50
Issue: 7
結束頁: 2802
顯示於類別:期刊論文


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  1. 000305746900011.pdf