双线性插值近似网格的栅格数据投影变换  

Raster Dataset projection transform based-on bilinear interpolation approximate grid algorithm

作　　者：刘庆元[1] 孟俊贞[1] 

机构地区：[1]中南大学信息物理工程学院,湖南长沙410083

出　　处：《测绘工程》2009年第5期15-17,21,共4页Engineering of Surveying and Mapping

摘　　要：在栅格数据投影变换常用算法的基础上,介绍一种新的基于双线性内插近似网格算法的栅格数据投影变换,并详细描述其算法过程,认真分析其特点,并证明该算法在大范围栅格数据投影变换中有显著优点。Based on common algorithm of raster data projection thansformation,the article provides a new method of raster data projection transformation concerning bilinear interpolation Approximate Grid algorithm,describing the process in detail and analyzing detail characteristics.It also proves this algorithm is faster,accurate and practical for projecting large raster datasets.

关 键 词：双线性插值 投影变换 近似网格 

分 类 号：P209[天文地球—测绘科学与技术]