移动对象轨迹的双重插值Double Interpolation of Moving Object Trajectories
卓飞豹;郭躬德;黄添强;
摘要(Abstract)：
移动对象的轨迹插值是查询处理的前提,插值的精度直接影响到查询处理的准确率.将保形三次Hermite插值引入到移动对象的时空轨迹插值,提出了双重插值模型,此模型继承了保形三次Hermite插值的优点,不需要速度条件便可以形成轨迹,容易将模型推广到高维空间,可以弥补移动对象数据库中记录点太稀疏的缺陷,并且插值精度比线性插值、非节点样条插值和保形三次Hermite插值更高.
关键词(KeyWords)： 移动对象轨迹;双重插值;保形三次Hermite插值
基金项目(Foundation): 福建省自然科学基金资助项目(2007J0016);; 福建省青年创新基金资助项目(2006F3045)
作者(Authors): 卓飞豹;郭躬德;黄添强;
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