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UAV-based rural homestead ownership determination |
| XUE Wu1, 2, 3, 4, MA Yongzheng1, 5, ZHAO Ling1, MO Delin1, 2 |
1. Information Engineering University, Zhengzhou 450001, China;
2. State Key Laboratory of Geo-information Engineering,Xi’an 710054, China;
3. Key Laboratory of Mine Spatial Information Technologies of National Adminisration of Surveying,Mapping & Geoinformation, Jiaozuo 454003, China;
4. Jiangxi Province Key Lab for Digital Land East China Institute of Technology, Nanchang 330013, China;
5. Computer Engineering College, Jimei University, Xiamen 361021, China |
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Abstract Rural homestead ownership determination using unmanned aerial vehicle(UAV) has the advantages of high efficiency and low cost. Low-altitude UAV photogrammetry experiment was conducted to test its positioning accuracy. The simple UAV platform and ordinary digital camera effectively reduced the project cost. Through structure from motion, an approximation of the image exterior orientation elements was computed, and then a self-calibration bundle adjustment with additional parameters was undertaken, which significantly improves the accuracy of low-altitude UAV photography and thus has important practical value. By analyzing the main factors affecting the accuracy of UAV photogrammetry, the authors put forward some suggestions about the control of low altitude UAV photographic measurement accuracy.
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| Keywords
PolSAR image classification
pseudo color enhancement
color feature
feature vector
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Issue Date: 15 August 2017
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2017,
Vol. 29
