一种用于PDA的遥感影像数据模型及其显示算法研究

A remote sensing image data model for PDA and its display algorithm

本文针对以PDA为代表的移动智能终端的特点,提出了一种瓦片金字塔和线性四叉树索引相结合的遥感影像数据模型,文中详细给出了模型的相关数据结构,并利用视点相关实时简化算法来显示影像数据。实验表明该模型和显示算法可在资源有限的PDA上实现大数据量遥感影像的实时显示。

According to the characteristics of intelligent mobile terminals represented by PDA, a new dada model based on the tile-pyramid is presented and linear quadtree is used for remote sensing image management and display. The related dada structure of the model is explained in details, and the real-time display of the image dada is achieved by the view-dependent real-time simplifying algorithm. The experimental results show that the model and the algorithm can enable real-time display for massive remote sensing images under PDA with limited resources.