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

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