A Multi-temporal SAR Coherent Change Detection Method Based on Probabilistic Graphical Models

JI Guangyu; DONG Yongwei; LI Yanlei; LIANG Xingdong

doi:10.11999/JEIT170208

Volume 39 Issue 12

Dec. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(12): 2912-2920

JI Guangyu, DONG Yongwei, LI Yanlei, LIANG Xingdong. A Multi-temporal SAR Coherent Change Detection Method Based on Probabilistic Graphical Models[J]. Journal of Electronics & Information Technology, 2017, 39(12): 2912-2920. doi: 10.11999/JEIT170208

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JI Guangyu, DONG Yongwei, LI Yanlei, LIANG Xingdong. A Multi-temporal SAR Coherent Change Detection Method Based on Probabilistic Graphical Models[J]. Journal of Electronics & Information Technology, 2017, 39(12): 2912-2920. doi: 10.11999/JEIT170208

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A Multi-temporal SAR Coherent Change Detection Method Based on Probabilistic Graphical Models

doi: 10.11999/JEIT170208

1.
2.
(Key Laboratory of Science and Technology on Microwave Imaging, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

Received Date: 2017-03-07
Rev Recd Date: 2017-05-24
Publish Date: 2017-12-19

Abstract

Abstract

Coherent Change Detection (CCD) has good performance on detecting change regions with low coherence in the scene by using repeat-pass Synthetic Aperture Radar (SAR) data. However, some regions as vegetation, radar shadows, sidelobes of strong reflectivity and low reflectivity areas show low coherent character as well, which disturbs the result of change detection, especially in high frequency band SAR CCD with more evident disturbance. This paper proposes a multi-temporal CCD method by establishing a probabilistic graphical model using CCD images formed by multi-temporal SAR data. In this method, multi-temporal CCD images are used as observations to calculate a posterior probability of objective change region via choosing appropriate number of processing CCD images and optimizing the classification of change regions in the scene. The proposed method can reduce the disturbance of low coherence disturb regions effectively. The simulated and experimental results demonstrate the validity and effectiveness of the proposed method.
- Repeat-pass SAR,
- Coherent Change Detection (CCD),
- Multi-temporal,
- Probabilistic graphical models,
- Posterior probability

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References(23)

References

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