Patent ID: 9704041
Date: 2017-07-11
CPC Classifications: G06K,G06T

Claim:
1. A method for classifying a terrain type in an area, the method comprising the steps of: obtaining a plurality of overlapping aerial images of the area, wherein the plurality of overlapping aerial images are not images that only differ by a wavelength band that each aerial image out of the plurality of overlapping aerial images uses: calculating at least one terrain type index for each part of each of the aerial images which lies in the area, where the at least one terrain type index represents the terrain type; determining at least one effective terrain type index for each part of the area based on the calculated at least one terrain type index for the corresponding part of each of the overlapping aerial images, the effective terrain type index for each part of the area being determined via taking either a statistical average or a weighted statistical average of corresponding terrain type indices from each corresponding part of each of the overlapping aerial images, which correspond to this part of the area: and classifying the parts of the area for which at least one predetermined conditions is met as containing the terrain type, wherein at least one of the at least one predetermined condition relates to a value of the determined at least one effective terrain type index.