Patent ID: 6178253
Filing Date: 2001-01-23
Classification: G01J,G06K,G06T,H04N

Abstract:
A process for determining the health of crops in a field, said field containing regions having differing areas of nutrient containing crops, comprising the steps of:establishing, in a field in which the health of the crops is to be determined, at least one predetermined reference area of crops in each of said regions to provide more region specific reference values for said field, said reference areas having a determined nutrient content;georeferencing aerial photographs of multiple regions of said field;determining the green plane in the photographs thus taken; andpreparing a relative greenness map of the regions based upon said nutrient reference areas;wherein said nutrient reference areas include strips of nutrient enriched crops to form nutrient enriched references, and said regions are formed by subdividing said reference strips until each region meets an established level of variability.