Method for analyzing seasonal growing conditions of crops

Details Method for analyzing seasonal growing conditions of crops Method for analyzing seasonal growing conditions of crops

1978-09-22

1980-10-07

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

250340, 358109, 364515, H06N 518

Patent

active

042272114

ABSTRACT:
This method uses electronic measurement of color values in aerial infrared photographic transparencies to analyze the growing condition of a crop. A series of infrared photographs are taken during the growing season, and average color values from the resulting image are plotted and compared to optimum growing conditions. Electronic measurements are made of color densities about the total field area as represented on each photographic image. Each measurement is corrected to eliminate exposure variations in the images due to photographic factors, weather factors, lighting and film conditions, and the date and time at which the photograph was taken.

REFERENCES:
patent: 3748471 (1973-07-01), Ross
patent: 3752914 (1973-08-01), England
patent: 3752915 (1973-08-01), Parker
patent: 3978324 (1976-08-01), Rayner
patent: 4037048 (1977-07-01), Walker

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