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

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Liu, Jin^1,2 ; Li, Ying-Cheng^1,3 ; Li, De-Long^1,2 ; Teng, Chang-Sheng^1 ; Zhang, Wen-Hao^1,3

China TopRS Technology Co., Ltd, Beijing 100039, China^1

Beijing University of Civil Engineering and Architecture, Beijing 100044, China^2

Chinese Academy of Surveying and Mapping, Beijing 100039, China^3

关键词: Aerial remote sensing;    Airborne remote sensing;    Broad application;    Maximum acceleration;    Ortho-rectification;    Ortho-rectification process;    Parallel processing;    Time requirements;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012201/pdf
DOI  :  10.1088/1755-1315/17/1/012201

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

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.