Automated accurate registration method between UAV image and Google satellite map |
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Authors: | Yuan Yijie Huang Wei Wang Xiangxin Xu Huaiyu Zuo Hongying Su Ruidan |
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Affiliation: | 1.Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China ;2.University of Chinese Academy of Sciences, Beijing, China ;3.Department of Computer Science and Technology, Shanghai University, Shanghai, China ; |
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Abstract: | Because Unmanned Aerial Vehicle (UAV) image exhibits low positioning accuracy, the accurate registration of the image is required. Since the viewpoint direction, capturing time and shoot height are considerably different between the UAV image and google satellite map, the existing methods cannot match two images accurately. For the registration between the UAV image and google satellite map, a full-automated image registration method was proposed based on deep convolution feature. Such method consists of five steps: automatically reference images downloading, uniform key point extraction, deep convolution features computation, accurately feature matching and image registration. The reference image was downloaded from google map service according to the approximate location and region of the UAV image. The deep convolution feature was extracted using the pre-trained VGG16 model. Finally, many experiments were performed to verify the efficiency of the proposed method, and the results demonstrate that the proposed method is more effective and robust than the existing method. |
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