中文摘要：

建筑密度信息是城市规划、土地管理和居住区环境评估等所需的一个重要指标.高分辨率（米级及以下）SAR图像数据的获取使得利用SAR图像精确提取城市建筑密度信息成为可能.提出了一个基于高分辨率SAR图像的计算城市建筑密度的有效方法,分为建筑检测、建筑密度初估计和建筑密度模型修正3个主要步骤.在武汉市武昌区的高分辨率TerraSAr-X数据的实验结果验证了本方法的有效性.

英文摘要：

Urban building density has always been an important indicator for city planning,land management and resident density evaluation.It hasn＇t until recently that SAR data with high resolution of one meter or even finer grid can be easily retrieved,thus making it possible to extract urban fabric like building density from SAR imagery.An effective method for computing urban building density from high resolution SAR images is proposed.This method has three main steps：building detection,building density estimation and amendment.The experiment results for TerraSAr-X images show that the proposed method has a good performance.