Abstract: Quick display and browse of a large remote sensing image is an important feature for remote sensing image processing and analysis software. It can quickly display a large remote sensing image by adopting fast and efficient read/write function of Geospatial Data Abstraction Library（GDAL） to dynamically read image block from image file to memory and dynamically build image pyramid structure in memory. The effect of “gradual change” is implemented in the operations of Zoom in, Zoom out and Roaming, so users feel very fast and smooth when they do these operations.

Key words: massive remote sensing image, Geospatial Data Abstraction Library（GDAL）, dynamic pyramid, rapid display and browse, gradual change display

摘要： 快速显示与浏览大的遥感图像是遥感图像处理与分析软件的一个重要的功能。利用GDAL的快速高效的文件读取功能，动态地分块从文件中读取图像块到内存，动态地建立金字塔结构，从而能快速地显示大的遥感图像。放大、缩小和漫游操作实现了渐变的效果，能给用户非常快速和平滑的感觉。

关键词: 海量遥感图像, GDAL开源软件, 动态金字塔, 快速显示与浏览, 渐变显示