城区范围空间划定方法研究
伍江, 刘春, 应申, 余婷

Spatial delineation methods of urban areas
WU Jiang, LIU Chun, YING Shen, YU Ting
图3 巴中市实体地域提取结果图
Fig.3 urban physical area extraction results map in Bazhong