The Research of Extracting and Matching Pre-earthquake Contour Based on Android Platform

doi:10.7517/j.issn.1674-0475.2016.01.059

Imaging Science and Photochemistry ›› 2016, Vol. 34 ›› Issue (1): 59-67.DOI: 10.7517/j.issn.1674-0475.2016.01.059

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The Research of Extracting and Matching Pre-earthquake Contour Based on Android Platform

SU Linlin^1,2, GUAN Guixia¹, ZHAO Haimeng², TAN Xiang^2,3, XU Zhenliang², LÜ Shuqiang⁴, MA Ainai², YAN Lei²

1. College of Information Engineering, Capital Normal University, Beijing 100048, P. R. China;
2. Beijing Key Lab of Spatial Information Integration & 3S Application, Peking University, Beijing 100871, P. R. China;
3. Specialized Forces College of CAPF, Beijing 102202, P. R. China;
4. School of Geomatics and Urban Information, Beijing University of Civil Engineering and Architecture, Beijing 100044, P. R. China

Received:2015-10-27 Revised:2015-11-06 Online:2016-01-15 Published:2016-01-15

Abstract

Abstract:

The research on pre-earthquake cloud is limited to visual interpretation, and it hasn't form a unified scientific theory. Pointed to this situation, and combined with the popular portable Android platform, the idea of extracting and matching pre-earthquake contour based on Android platform is proposed. Firstly,an improved mathematical morphology is used to extractpre-earthquake cloud contour. And then,10 new invariant moments of original image and reference image are calculated by using an improved Hu moments algorithm. Finally, match results are obtained to recognize the pre-earthquake cloud. The algorithms is realized on Android platform, it uses C++ language and calls OpenCV library functions through Native Development Kit (NDK) and Java Native Interface (JNI). The result shows the method can well realize pre-earthquake cloud recognition under time series. It is easy to operate on Android device, and can make foundation for deep research on pre-earthquake cloud.

Key words: pre-earthquake cloud, contour extraction, contour match, mathematical morphology, Hu moments, Android

SU Linlin, GUAN Guixia, ZHAO Haimeng, TAN Xiang, XU Zhenliang, LÜ Shuqiang, MA Ainai, YAN Lei. The Research of Extracting and Matching Pre-earthquake Contour Based on Android Platform[J]. Imaging Science and Photochemistry, 2016, 34(1): 59-67.

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The Research of Extracting and Matching Pre-earthquake Contour Based on Android Platform

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