王茂芝, 郭科, 徐文皙. 基于集群和GPU的高光谱遥感影像并行处理[J]. 红外与激光工程, 2013, 42(11): 3070-3075.
引用本文: 王茂芝, 郭科, 徐文皙. 基于集群和GPU的高光谱遥感影像并行处理[J]. 红外与激光工程, 2013, 42(11): 3070-3075.
Wang Maozhi, Guo Ke, Xu Wenxi. Hyperspectral remote sensing image parallel processing based on cluster and GPU[J]. Infrared and Laser Engineering, 2013, 42(11): 3070-3075.
Citation: Wang Maozhi, Guo Ke, Xu Wenxi. Hyperspectral remote sensing image parallel processing based on cluster and GPU[J]. Infrared and Laser Engineering, 2013, 42(11): 3070-3075.

基于集群和GPU的高光谱遥感影像并行处理

Hyperspectral remote sensing image parallel processing based on cluster and GPU

  • 摘要: 以高光谱遥感影像数据处理中的主成分分析(PCA)和最小噪声分离(MNF)以及光谱相关系数填图(SCM)算法的并行化为目标,分别在集群环境下基于MPI设计并实现了协方差矩阵并行算法,以及基于GPU设计并实现了SCM并行算法,并在高光谱遥感影像数据处理中得到应用和验证。实验结果表明,高光谱遥感影像数据处理高性能计算对于提高和改善其时间性能具有显著效果,是高光谱遥感工程化应用快速处理重要的技术手段。

     

    Abstract: The parallel algorithms design and implementation of covariance matrix, related to PCA and MNF, and SCM used in hyperspectral remote sensing image data process was discussed in this paper. The covariance matrix parallel algorithm was designed and implemented under cluster circumstance based on MPI. On the other hand, parallel algorithm of SCM was designed and implemented based on GPU. Both of these two parallel algorithms were verified during the application on hyperspectral remote sensing data processing. The experiment results prove that high performance computing is effective during the data process of hyperspectral remote sensing image, and it should be an important technique for generalization of hyperspectral remote sensing to engineering quick application. The results also prove the correctness of the parallel algorithms proposed in this paper.

     

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