基于智能手机的无人机低空倾斜摄影测量系统及其应用研究 |
毕卫华, 赵星涛, 杨化超, 卞和方, 张秋昭 |
Research on smartphone based UAV low-altitude oblique photogrammetry system and its applications |
BI Weihua, ZHAO Xingtao, YANG Huachao, BIAN Hefang, ZHANG Qiuzhao |
图2 使用ND镜前后影像效果对比 |
Fig.2 Image results before and after adding ND filter |