no code implementations • 14 Oct 2021 • Chang Liu, Hairong Tang, Luyan Ji, Yongchao Zhao
Based on the mapping results, we analyzed the changes of Miyun Reservoir from 1984 to 2020 and the driving factors of them.
no code implementations • 22 Dec 2016 • Luyan Ji, Jie Wang, Xiurui Geng, Peng Gong
Difficulties of water mapping on high resolution data includes: 1) misclassification between water and shadows or other low-reflectance ground objects, which is mostly caused by the spectral similarity within the given band range; 2) small water bodies with size smaller than the spatial resolution of MS image.
no code implementations • 11 Dec 2016 • Jie Wang, Luyan Ji, Xiaomeng Huang, Haohuan Fu, Shiming Xu, Cong-Cong Li
Conditional probability distributions were computed based on data quality and reliability by using information selectively.
no code implementations • 19 Oct 2016 • Luyan Ji, Xiurui Geng, Yongchao Zhao, Fuxiang Wang
As an example, for the matched filter (MF), which is the most widely used target detection method for hyperspectral data, we present an automatic MF-based algorithm for bad band identification.