Wuhan University

Satellite Application Center for Ecology and Environment, Mee

Xing Jia

Hao Sun

Chen Wang

Chao Wang

Nan Wang

Qian Zhao

Jianhui Zhang

Dan Xu

Bin Meng

Jixi Gao

Shoujing Yin

Hongyan Yang

Yanting Wu

Xiaogang Zhang

Yaming Zhou

Huan Zhao

Xuelei Wang

Yihuang Nie

The present disclosure provides a method, apparatus, medium and device for extracting a river drying-up region and frequency, and belongs to the technical field of remote sensing. The method for extracting a river drying-up region and frequency can be applied to efficiently acquiring river drying-up information for a long time within the large spatial region. With the inverse normalized difference water index (iNDWI) and the maximum value composite (MVC) method for the remote sensing images, the present disclosure omits the troublesome step of separately extracting a river range for each image in the conventional method. In addition, the present disclosure quickly obtains the drying-up frequency by counting the total number of available images and the number of non-water images at the same pixel position, and yields a greater efficiency for extracting the river drying-up region and frequency.

Method, apparatus, medium and device for extracting river drying-up region and frequency

Growing community of inventors

Beijing, China

Xing Jia