Change Detection Method Based on Fusion Difference Map in Flood Disaster
Due to the influence of the environment on the scattering characteristics of ground objects in flooded areas, the false error rate of the detection results increases when performing change detection on Synthetic Aperture Radar (SAR) images of these areas, which reduces the accuracy of the results ob...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2021-02-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | https://radars.ac.cn/cn/article/doi/10.12000/JR20118 |
| _version_ | 1797427982718992384 |
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| author | Pingping HUANG Yinghong DUAN Weixian TAN Wei XU |
| author_facet | Pingping HUANG Yinghong DUAN Weixian TAN Wei XU |
| author_sort | Pingping HUANG |
| collection | DOAJ |
| description | Due to the influence of the environment on the scattering characteristics of ground objects in flooded areas, the false error rate of the detection results increases when performing change detection on Synthetic Aperture Radar (SAR) images of these areas, which reduces the accuracy of the results obtained for the difference map. To solve this problem, in this paper, we propose a change-detection method based on a fusion difference map. This method combines the regional sensitivity of the entropy difference map with the regional retention of the mean difference map to construct a fusion difference map based on an improved relative entropy and mean value ratio. First, the initial clustering results of the fuzzy local information C-means clustering method are classified by their Pearson correlation coefficients, and second, the secondary classification results are used for the initial image segmentation. Third, the final segmentation results are obtained using the iterative condition model and Markov random field. To verify the flood-disaster-detection performance of the proposed method, we used the second of Europe Remote-Sensing (ERS-2) Satellite data obtained for the Bern area in Switzerland in April and May 1999 and Radarsat remote-sensing data for the Ottawa region in Canada in May and August 1997. We also applied the proposed method to data obtained for the Poyang Lake region of China in June and July 2020, and estimated the disaster area and change trend before and after the flood in Poyang Lake. The experimental results show that the algorithm had a low overall detection error, the false error rate of the detection results were somewhat reduced, and the accuracy of the detection results was improved. |
| first_indexed | 2024-03-09T08:51:37Z |
| format | Article |
| id | doaj.art-e16e9820b12a45f9be029c8c3b2eae20 |
| institution | Directory Open Access Journal |
| issn | 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:51:37Z |
| publishDate | 2021-02-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-e16e9820b12a45f9be029c8c3b2eae202023-12-02T14:14:09ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2021-02-0110114315810.12000/JR20118R20118Change Detection Method Based on Fusion Difference Map in Flood DisasterPingping HUANG0Yinghong DUAN1Weixian TAN2Wei XU3College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaDue to the influence of the environment on the scattering characteristics of ground objects in flooded areas, the false error rate of the detection results increases when performing change detection on Synthetic Aperture Radar (SAR) images of these areas, which reduces the accuracy of the results obtained for the difference map. To solve this problem, in this paper, we propose a change-detection method based on a fusion difference map. This method combines the regional sensitivity of the entropy difference map with the regional retention of the mean difference map to construct a fusion difference map based on an improved relative entropy and mean value ratio. First, the initial clustering results of the fuzzy local information C-means clustering method are classified by their Pearson correlation coefficients, and second, the secondary classification results are used for the initial image segmentation. Third, the final segmentation results are obtained using the iterative condition model and Markov random field. To verify the flood-disaster-detection performance of the proposed method, we used the second of Europe Remote-Sensing (ERS-2) Satellite data obtained for the Bern area in Switzerland in April and May 1999 and Radarsat remote-sensing data for the Ottawa region in Canada in May and August 1997. We also applied the proposed method to data obtained for the Poyang Lake region of China in June and July 2020, and estimated the disaster area and change trend before and after the flood in Poyang Lake. The experimental results show that the algorithm had a low overall detection error, the false error rate of the detection results were somewhat reduced, and the accuracy of the detection results was improved.https://radars.ac.cn/cn/article/doi/10.12000/JR20118sar imagechange detectionunsupervisedimprove relative entropyiterative condition model and markov random field (icm-mrf) |
| spellingShingle | Pingping HUANG Yinghong DUAN Weixian TAN Wei XU Change Detection Method Based on Fusion Difference Map in Flood Disaster Leida xuebao sar image change detection unsupervised improve relative entropy iterative condition model and markov random field (icm-mrf) |
| title | Change Detection Method Based on Fusion Difference Map in Flood Disaster |
| title_full | Change Detection Method Based on Fusion Difference Map in Flood Disaster |
| title_fullStr | Change Detection Method Based on Fusion Difference Map in Flood Disaster |
| title_full_unstemmed | Change Detection Method Based on Fusion Difference Map in Flood Disaster |
| title_short | Change Detection Method Based on Fusion Difference Map in Flood Disaster |
| title_sort | change detection method based on fusion difference map in flood disaster |
| topic | sar image change detection unsupervised improve relative entropy iterative condition model and markov random field (icm-mrf) |
| url | https://radars.ac.cn/cn/article/doi/10.12000/JR20118 |
| work_keys_str_mv | AT pingpinghuang changedetectionmethodbasedonfusiondifferencemapinflooddisaster AT yinghongduan changedetectionmethodbasedonfusiondifferencemapinflooddisaster AT weixiantan changedetectionmethodbasedonfusiondifferencemapinflooddisaster AT weixu changedetectionmethodbasedonfusiondifferencemapinflooddisaster |