Patent ID: 9430839
Filing Date: 2016-08-30
CPC Classification: G06K,G06T

Claim Text:
1. A method of reducing processing time when assigning geographic areas to land cover labels using satellite sensor values, the method comprising: a processor receiving a feature value for each pixel in a time series of frames of satellite sensor values, each frame containing multiple pixels and each frame covering a same geographic location such that for each sub-area of the geographic location there is a time series of pixel feature values; for each sub-area of the geographic location, assigning the sub-area to one of at least three land cover labels; the processor determining a fraction function for a first sub-area assigned to a first land cover label, the fraction function based on means of pixel feature values of a first cluster of sub-areas assigned to a second land cover label and means of feature values of a second cluster of sub-areas assigned to a third land cover label; and reassigning sub-areas that were assigned to the first land cover label to one of the second land cover label and the third land cover label based on the fraction functions of the sub-areas.