国土资源遥感Issue(3)：19-24,6.DOI:10.6046/gtzyyg.2015.03.04
基于资源三号影像的建筑物高度信息提取方法
Method for extraction of building height information based on ZY-3 image
摘要
Abstract
The extraction of the information of building height from the high-resolution remote sensing image is a hot research topic in the study of the information extraction. This paper proposes a set of building height inversion techniques in combination with the object-oriented classification method. First of all, through the object-oriented classification method, the building outline and shadow information are extracted by using morphological building and shadow indices; and then, the intersection line average method is employed to calculate the length of the shadow;finally, the height of building is calculated according to the geometric relation model between the shadow length and the building height. The proposed method was validated on domestic ZY-3 satellite remote sensing data of Xi’an City, and the overall accuracy of 91. 23% was obtained by verifying the result using the actual measuring height of 171 buildings. The results achieved by the authors have a certain practical significance for the study of building height information extraction.关键词
资源三号(ZY-3)/形态学建筑物指数/形态学阴影指数/面向对象分类/建筑物高度/阴影长度Key words
ZY-3/morphological building index/morphological shadow index/object-oriented classification/building height/shadow length分类
信息技术与安全科学引用本文复制引用
赵志明,周小成,付乾坤,汪小钦..基于资源三号影像的建筑物高度信息提取方法[J].国土资源遥感,2015,(3):19-24,6.基金项目
国家自然科学青年基金项目“结合互信息和遗传算法特征选择的多层次面向对象影像分类”(编号:41201427)资助。 （编号:41201427）
