The orthorectified technology for UAV aerial remote sensing image based on the Programmable GPU

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Abstract

Considering the time requirements of the disaster emergency aerial remote sensing data acquisition and processing, this paper introduced the GPU parallel processing in orthorectification algorithm. Meanwhile, our experiments verified the correctness and feasibility of CUDA parallel processing algorithm, and the algorithm can effectively solve the problem of calculation large, time-consuming for ortho rectification process, realized fast processing of UAV airborne remote sensing image orthorectification based on GPU. The experimental results indicate that using the assumption of same accuracy of proposed method with CPU, the processing time is reduced obviously, maximum acceleration can reach more than 12 times, which greatly enhances the emergency surveying and mapping processing of rapid reaction rate, and has a broad application.

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Liu, J., Li, Y. C., Li, D. L., Teng, C. S., & Zhang, W. H. (2014). The orthorectified technology for UAV aerial remote sensing image based on the Programmable GPU. In IOP Conference Series: Earth and Environmental Science (Vol. 17). Institute of Physics Publishing. https://doi.org/10.1088/1755-1315/17/1/012201

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