Yellow River Icicle Hazard Dynamic Monitoring Using UAV Aerial Remote Sensing Technology

8th International Symposium of the Digital Earth

地球科学;计算机科学

Wang, H.B.^1,2 ; Wang, G.H.^2 ; Tang, X.M.^2 ; Li, C.H.^2

Wuhan University, 129 Luoyu Road, Wuhan, Hubei, China^1

Satellite Surveying and Mapping Application Center, NASG, 28 Lianhuachi West Road, Beijing, China^2

关键词: Aerial remote sensing;    Automatic extraction;    Decision information;    Dynamic monitoring;    Inner Mongolia autonomous regions;    Monitoring and evaluations;    Real-time data processing;    Topographic surveys;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/18/1/012043/pdf
DOI  :  10.1088/1755-1315/18/1/012043

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Monitoring the response of Yellow River icicle hazard change requires accurate and repeatable topographic surveys. A new method based on unmanned aerial vehicle (UAV) aerial remote sensing technology is proposed for real-time data processing in Yellow River icicle hazard dynamic monitoring. The monitoring area is located in the Yellow River ice intensive care area in southern BaoTou of Inner Mongolia autonomous region. Monitoring time is from the 20th February to 30th March in 2013. Using the proposed video data processing method, automatic extraction covering area of 7.8 km2of video key frame image 1832 frames took 34.786 seconds. The stitching and correcting time was 122.34 seconds and the accuracy was better than 0.5 m. Through the comparison of precise processing of sequence video stitching image, the method determines the change of the Yellow River ice and locates accurate positioning of ice bar, improving the traditional visual method by more than 100 times. The results provide accurate aid decision information for the Yellow River ice prevention headquarters. Finally, the effect of dam break is repeatedly monitored and ice break five meter accuracy is calculated through accurate monitoring and evaluation analysis.