纹理特征与视觉注意相结合的建筑区提取

摘要

An effective bui lt-up areas extraction algorithm of high-resolution remote sensing images was proposed.Based on a signal processing method,a texture description method was presented for the characteristics of bui lt-up areas in high-resolution remote sensing images.Through an information theory based visual attention mechanism,a sal iency map was calculated to extract bui lt-up areas.Experiments proved the effectiveness of the proposed algorithm.%提出一种有效提取高分辨率遥感影像建筑区的算法。通过模拟人类视觉系统感知环境的过程，引入视觉注意机制，提出基于自信息最大化视觉注意机制的建筑区显著指数。根据建筑区在高分辨率遥感影像中的特点，基于时/频域的纹理分析，提出一种针对建筑区的纹理特征描述方法，实现了建筑区的高效提取。通过对8组高分辨率遥感影像进行试验，验证了本文算法的有效性。