【作者】 高芳琴； 吴健平；

【Author】 Gao Fangqin Wu Jianping (Geography Department, East China Normal University, Shanghai 200062, China)

【机构】 华东师范大学地理系；

【摘要】 道路、水系等线性物体的提取是土地利用/土地覆盖变化信息提取的组成部分,而且对于更新国家地理信息空间数据库也具有重要意义,这里给出了遥感图像识别中一种组合利用种子点生长算法与二值形态学的方法进行线性要素提取,并根据线性方程拟合得到矢量线性要素。更多还原

【Abstract】 Linear object detecting is a main part of the research on land-use and land-cover change, which is also very important for updating the spatial database. An useful linear object detecting algorithm is presented. During the image processing procedure, seed-growing is used for edge detection first, then mathematical morphology for correcting the edge better. Lastly, the linear equation is used to get the vector edge of the object.更多还原