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	Fast Stereo Aerial Image Construction and Measurement for Emergency Rescue
	Dong, N. ; Ren, X. ; Sun, M. ; Jiang, C. ; Zheng, H.
	2013
关键词	Stereo image Measurement MUAV Mosaic
英文摘要	In the field of UAV information processing and aerial image processing technology, data acquisition with MUAV platform is more and more widely used in emergency rescues. The traditional way of aerial photogrammetry, which has a limited accuracy in aerial camera locations on the UAV, makes measurements of the object location on pairwise images inaccurate. The method presented in this paper fast constructs a stereo aerial image aided with high-precision GPS and INS data. It also allows users to do correct measurements based on the image as the high-frequency DGPS promoting the reliability of camera locations. Dense shooting stations make a longer measurement baseline possible. The main steps to construct a stereo aerial image are: 1) Image acquisition and overlap calculation. Make a route planning for the flight according to the flight area to get an adequate overlap of the image sequence. 2) Fast stitching of aerial images. High-precision GPS and INS data are used to roughly pre-align images of the flight area and then images are evenly stitched to two panoramas. 3) Stereo aerial image synthesis. We adjust the parallax of the stereo image, synthesized by the two, to a scale properly fitting the human eyes to make it more dynamic. The stable low-altitude flying of the MUAV as well as the high density data acquired enable us to measure objects in the stereo image with a longer baseline. In order to verify the practicability and the measurement accuracy of this method, an experiment was done along the Kelan River in Xinjiang. We obtained high-resolution images and accurate camera locations with the MUAV platform. Afterwards, a stereo aerial image was quickly constructed and measurements were taken by improved aerial photogrammetry to get detail information of the image. In the accuracy analysis of the measurements results, it demonstrated fine efficiency and a good accuracy of the method.; Computer Science, Information Systems; Engineering, Electrical & Electronic; EI; CPCI-S(ISTP); 0
语种	英语
DOI标识	10.1109/GIT4NDM.2013.16
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/405850]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Dong, N.,Ren, X.,Sun, M.,et al. Fast Stereo Aerial Image Construction and Measurement for Emergency Rescue. 2013-01-01.

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