Search Results for author: Luyan Ji

Found 4 papers, 0 papers with code

Spatial-temporal water area monitoring of Miyun Reservoir using remote sensing imagery from 1984 to 2020

no code implementations14 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.

Management

Probabilistic graphical model based approach for water mapping using GaoFen-2 (GF-2) high resolution imagery and Landsat 8 time series

no code implementations22 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.

Time Series Time Series Analysis

A probabilistic graphical model approach in 30 m land cover mapping with multiple data sources

no code implementations11 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.

Time Series Analysis

An automatic bad band preremoval algorithm for hyperspectral imagery

no code implementations19 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.

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