Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.

Xinjiang Goldwind Science & Technology Co., Ltd.

Qiankun Wang

Yun Bj Wang

Yun Wang

Dongxu Lei

Provided are a device and a method for extracting a terrain boundary, including: a grid creating module configured to divide a region which is determined based on measured contour line data of a target terrain, to form a regular grid including multiple grid units; a data analyzing module configured to assign a first standard value or a second standard value to each of the multiple grid units based on the number of elevation points included in the grid unit, to form a final grid region, where the final grid region is a region including all grid units having the first standard value; and a boundary extracting module configured to extract a terrain boundary based on the final grid region.

Device and method for extracting terrain boundary

A method and device for filling invalid regions of terrain elevation model data are provided by the present disclosure. The filling method includes obtaining an isolated invalid grid in first terrain elevation model data, the invalid grid being a grid without a valid elevation value; interpolating an elevation value of the isolated invalid grid by using elevation values of valid grids around the isolated invalid grid, to obtain data-interpolated first terrain elevation model data; obtaining invalid patches in the data-interpolated first terrain elevation model data, each of the invalid patches being a region consisting of at least two adjacent invalid grids; and interpolating elevation values of the invalid grids in the invalid patches by using a further terrain elevation model data other than the first terrain elevation model data, to fill the invalid regions of the first terrain elevation model data.

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Beijing, China

Qiankun Wang