Yuhuan Ren

Yuhuan Ren


Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 December 2018 in Sensors
Verified
Journal Article
Open access
PDF file
ZWZhihao Wang
Zhihao Wang
Yalan LiuYalan Liu
Yalan Liu
YRYuhuan Ren
Yuhuan Ren
HMHaojie Ma
Haojie Ma
Land cover change detection based on remote sensing has become increasingly important for protecting the ecological environment. Spatial features of images can be extracted by object-level methods. However, the computational complexity is high when using many features to detect land cover change. Meanwhile, single-constrained change detection (SCCD) methods produce non-objective and inaccurate results. Therefore, we proposed a land cover change detection method: the object-level double constrained change detection (ODCD) method. First, spectral and spatial features were calculated based on multi-scale segmentation results. Second, using the significant difference test (SDT), feature differences among all categories were calculated, and the features with more significant differences were considered as the optimal features. Third, the maximum Kappa coefficient was used as the criterion for determining the optimal change intensity and correlation coefficient. Finally, the ODCD was validated using GF-1 satellite images on March 2016 and February 2017 in north Beiqijia Town, Beijing. Using optimal feature selection, the dimension of features was reduced from 26 to 12. Compared with SCCD methods, the result of the ODCD was more reliable and accurate. Its overall accuracy was 10% higher, overall error was 27% lower, and the Kappa coefficient was 0.22 higher. In conclusion, the ODCD is effective for land cover change detection and can improve computational efficiency.

20 June 2010 in Journal of Geo-information Science
Verified
Journal Article
Closed access
LYLei Yan
Lei Yan
YRYuhuan Ren
Yuhuan Ren
XHXiaoxia Huang
Xiaoxia Huang
YZYanping Zhang
Yanping Zhang
YLYalan Liu
Yalan Liu
SWShiwen Wang
Shiwen Wang