Method and system for iteratively updating high-fidelity land cover data
A technology of surface coverage and iterative update, applied in the field of geospatial information, can solve the problems of large additional data inspection and modification workload, reduce the production efficiency of surface coverage data update, and affect the quality of result data.
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Embodiment 1
[0052] figure 1 It is a flow chart of the method for iteratively updating high-fidelity land cover data provided by Embodiment 1 of the present invention.
[0053] refer to figure 1 , the iterative update method for high-fidelity land cover data includes the following steps:
[0054] Step S110, obtaining the ground cover background data set in the background layer;
[0055] Step S120, compare the ground cover background data set with the remote sensing image data set, and obtain multiple background map spots and multiple change information according to multiple comparison results, the background map spots include change map spots and change map Spot geometrically adjacent spots;
[0056] Step S130, extracting a plurality of changed spots and a plurality of geometrically adjacent spots to the changed layer respectively;
[0057] Step S140, updating the multiple changed spots in the changed layer according to the multiple changed information, and obtaining multiple updated b...
Embodiment 2
[0090] Figure 4 It is a schematic structural diagram of the high-fidelity land cover data iterative update system provided by Embodiment 2 of the present invention.
[0091] refer to Figure 4 , the iterative update system for high-fidelity land cover data includes:
[0092] An acquisition unit 10, configured to acquire the ground cover background data set in the background layer;
[0093] The comparison unit 20 is used to compare the ground cover background data set and the remote sensing image data set, and obtain multiple background map spots and multiple change information according to multiple comparison results, the background map spots include change map spots and patches geometrically adjacent to the changing patch;
[0094] An extraction unit 30, configured to extract a plurality of changing spots and a plurality of geometrically adjacent spots to a changing layer;
[0095] An updating unit 40, configured to update a plurality of change spots in the change layer ...
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