A fast quality-guided phase unwrapping algorithm in heterogeneous environment

被引：0

作者：

Zhong, Heping ^{[1
]}

Zhang, Sen ^{[1
]}

Tian, Zhen ^{[1
]}

Tang, Jinsong ^{[1
]}

机构：

[1] School of Electronic Engineering, Naval University of Engineering, Wuhan

来源：

Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2015年 / 40卷 / 06期

基金：

中国国家自然科学基金;

关键词：

GPU; Parallel computing; Phase unwrapping; Quality guided;

D O I：

10.13203/j.whugis20130518

中图分类号：

学科分类号：

摘要：

We propose a fast quality-guided phase unwrapping algorithm for a heterogeneous environment. A tessellated interferogram is uploaded into the shared memory of a GPU, and then a high density quality map is computed synchronously. The quality map is downloaded into the memory of the host, and the final unwrapped result is guided by the quantized quality-guided strategy through the CPU. This algorithm takes both advantage of GPU and CPU computing characteristics to achieve fast quality guided phase unwrapping. Tests performed on InSAR and InSAS interferograms confirm the high efficiency of the proposed algorithm. ©, 2015, Wuhan University. All right reserved.

引用

页码：756 / 760

页数：4

共 10 条

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