引用本文: 钟何平, 张森, 田振, 唐劲松. 异构环境下的快速质量引导相位解缠算法[J]. 武汉大学学报 ( 信息科学版), 2015, 40(6): 756-760.
ZHONG Heping, ZHANG Sen, TIAN Zhen, TANG Jinsong. A Fast Quality-guided Phase Unwrapping Algorithmin Heterogeneous Environment[J]. Geomatics and Information Science of Wuhan University, 2015, 40(6): 756-760.
 Citation: ZHONG Heping, ZHANG Sen, TIAN Zhen, TANG Jinsong. A Fast Quality-guided Phase Unwrapping Algorithmin Heterogeneous Environment[J]. Geomatics and Information Science of Wuhan University, 2015, 40(6): 756-760.

## A Fast Quality-guided Phase Unwrapping Algorithmin Heterogeneous Environment

• 摘要: 提出了一种异构环境下的快速质量引导相位解缠算法。将干涉相位图进行分块,载入图形处理器(GPU)中共享存储器,实现干涉相位质量图的高密度并行计算。然后将质量图下载到主机内存,通过CPU进行量化质量引导,求解最终的解缠相位。该算法充分利用了GPU和CPU的计算特点实现快速质量引导相位求解。最后通过对InSAR和InSAS干涉相位图的解缠试验验证了所提算法的高效性。

Abstract: We propose a fast quality-guided phase unwrapping algorithm for a heterogeneous environ-ment.A tessellated interferogram is uploaded into the shared memory of a GPU,and then a high den-sity quality map is computed synchronously.The quality map is downloaded into the memory of thehost,and the final unwrapped result is guided by the quantized quality-guided strategy through theCPU.This algorithm takes both advantage of GPU and CPU computing characteristics to achieve fastquality guided phase unwrapping.Tests performed on InSAR and InSAS interferograms confirm thehigh efficiency of the proposed algorithm.

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