桂林电子科技大学学报2017，Vol.37Issue(2)：140-146,7.
五方向倾斜航空影像建筑物墙面自动提取方法
Automatic wall extraction from five direction oblique aerial image
摘要
Abstract
A method for obtaining the fine facade from the oblique aerial images with abundant redundant information is presented to focus on the lack of geometric facade during 3D city modeling and the low aerial image utilization rate.According to the five direction oblique aerial image matched point cloud, a Delaunay grid is constructed to achieve the target city in all directions.Then the redundant data is eliminated by overlapping detection in multi-view grid.Finally the real facade grid data is obtained by project the oblique non-redundant point on horizon plane and density threshold segmentation.The experimental results show that this method can effectively realize the facade automatic extraction from five direction oblique aerial image building.关键词
倾斜航空影像/交叠检测/水平投影/建筑物立面提取Key words
oblique aerial image/overlapping detection/horizontal projection/facade extraction分类
信息技术与安全科学引用本文复制引用
方智辉,吴军,彭智勇..五方向倾斜航空影像建筑物墙面自动提取方法[J].桂林电子科技大学学报,2017,37(2):140-146,7.基金项目
国家自然科学基金(60962003) （60962003）
广西自然科学基金(2014GXNSFAA118302) （2014GXNSFAA118302）
广西自动检测技术与仪器重点实验室基金(YQ15108) （YQ15108）
广西教育厅科研项目(KY2015YB111) （KY2015YB111）
