GPU-CPU协同航空影像快速正射纠正方法

GPU-CPU Cooperate Processing of Aerial Image Rapid Ortho-Rectification

为满足应急测绘中大序列航空影像快速正射纠正的要求,提出了一种GPU-CPU协同快速正射纠正方法。实验结果表明,通过对GPU程序进行配置选择优化和存储层次性优化,该方法较传统的基于CPU正射纠正方法,其平均加速比达到52倍。

A method of rapid ortho-rectification based on GPU-CPU cooperation is presented to meet the requirements of large series of aerial images in the emergency mapping.The research result indicates that the efficiency of the proposed method is 52 times higher than the traditional CPUbased method by optimizing the configuration and the hierarchical memory of the GPU.