講演抄録/キーワード |
講演名 |
2016-11-24 14:50
[ポスター講演]GPU-BASED ADAPTIVE LOCAL KRIGING APPLIED TO RECOVERING SURFACE DEFORMATION Meng-Che Wu(NSPO)・Wen-Yen Chang(NDHU)・○Yang-Lang Chang・Sheng-Yung Shih(NTUT)・Chihyuan Chu(G-AVE)・Bormin Huang(UW) SANE2016-79 |
抄録 |
(和) |
Synthetic aperture radar (SAR) is an active remote sensing instrument to measure the landscape. Differential interferometric synthetic aperture radar (DInSAR) is an effective technique to observe the surface motion caused by earthquakes. In our previous work an adaptive local kriging (ALK) was proposed to recover surface deformation associated with the fault zones in the decoherence area. ALK is a time-consuming task. Therefore, a graphics processing unit (GPU) based ALK is proposed to speed up the process. The NVIDIA compute unified device architecture (CUDA) is used to implement the parallel version of ALK. The experimental results demonstrate that the proposed GPU based ALK provides a speedup of 56.22x. The results of the correlation coefficients comparisons indicate the retrieving motion maps provide high fidelity compared to the original CPU based ALK method. |
(英) |
Synthetic aperture radar (SAR) is an active remote sensing instrument to measure the landscape. Differential interferometric synthetic aperture radar (DInSAR) is an effective technique to observe the surface motion caused by earthquakes. In our previous work an adaptive local kriging (ALK) was proposed to recover surface deformation associated with the fault zones in the decoherence area. ALK is a time-consuming task. Therefore, a graphics processing unit (GPU) based ALK is proposed to speed up the process. The NVIDIA compute unified device architecture (CUDA) is used to implement the parallel version of ALK. The experimental results demonstrate that the proposed GPU based ALK provides a speedup of 56.22x. The results of the correlation coefficients comparisons indicate the retrieving motion maps provide high fidelity compared to the original CPU based ALK method. |
キーワード |
(和) |
synthetic aperture radar / adaptive local Kriging / graphic processing unit / Differential interferometric synthetic aperture radar / / / / |
(英) |
synthetic aperture radar / adaptive local Kriging / graphic processing unit / Differential interferometric synthetic aperture radar / / / / |
文献情報 |
信学技報, vol. 116, no. 319, SANE2016-79, pp. 145-147, 2016年11月. |
資料番号 |
SANE2016-79 |
発行日 |
2016-11-17 (SANE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SANE2016-79 |