关键词: 遥感图像 几何校正 多项式变换 并行算法

Abstract:

To study and realize effective parallel algorithms for geometrical correction can improve the job efficiency of remote sensing image preprocessing. Firstly, the geometrical correction based on polynomial transform is studied. Then a new parallel algorithm is proposed, which solves the problem of compu ting locality through calculating the local data edges to delay required communications. Finally, this parallel algorithm is realized on a cluster syste m, and several remote sensing images with the size of gigabytes are used to test the algorithm performance. The results show the validity and good effic iency of our algorithm.

Key words: remote sensing image ;geometrical correcting, polynomial transform, parallel algorithm