Process for normalizing images or other data layers
First Claim
1. A method of processing image data on vegetation in an agricultural field, the method comprising:
- identifying image data relating to an agricultural field representative of areas of predetermined development patterns of vegetation in the field, the predetermined development patterns comprising a higher vegetation area of weedy patches;
segregating said areas of the predetermined development patterns with said weedy patches thereby defining segregated areas by overlaying a Normalized Difference Vegetation Index (NDVI) with a color infrared layer to select pixels with a geometric pattern or spatial distribution indicative of the weedy patches, other areas in the field being non-segregated areas;
normalizing said image data within said non-segregated area using a best crop area as a reference crop area that has sufficient nitrogen to identify a reference pixel within the reference crop area such that the other pixel data in the non-segregated crop area has normalized pixel values with reference to the reference pixel; and
prescribing application rates of an agricultural compound to said non-segregated areas dependent on a crop canopy color determined from said normalized image data based on the NDVI.
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Abstract
A method of processing vegetation data including the steps of identifying data relating to an agricultural field, segregating areas of predetermined development patterns and prescribing application rates of an agricultural compound. The identifying step includes identifying data relating to an agricultural field representative of areas of predetermined development patterns of vegetation in the field. The segregating step includes segregating the areas of the predetermined development patterns thereby defining segregated areas, other areas in the field being non-segregated areas. The prescribing step including prescribing application rates of an agricultural compound to the non-segregated areas dependent on at least one attribute determined from the data.
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Citations
20 Claims
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1. A method of processing image data on vegetation in an agricultural field, the method comprising:
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identifying image data relating to an agricultural field representative of areas of predetermined development patterns of vegetation in the field, the predetermined development patterns comprising a higher vegetation area of weedy patches; segregating said areas of the predetermined development patterns with said weedy patches thereby defining segregated areas by overlaying a Normalized Difference Vegetation Index (NDVI) with a color infrared layer to select pixels with a geometric pattern or spatial distribution indicative of the weedy patches, other areas in the field being non-segregated areas; normalizing said image data within said non-segregated area using a best crop area as a reference crop area that has sufficient nitrogen to identify a reference pixel within the reference crop area such that the other pixel data in the non-segregated crop area has normalized pixel values with reference to the reference pixel; and prescribing application rates of an agricultural compound to said non-segregated areas dependent on a crop canopy color determined from said normalized image data based on the NDVI. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of processing vegetation pixel data, the method comprising:
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masking selected pixels from consideration; identifying unselected pixels relating to an agricultural field representative of areas of predetermined development patterns of vegetation in the field, the predetermined development patterns comprising a higher vegetation area of weedy patches; segregating said areas of predetermined development patterns with said weedy patches thereby defining segregated areas by overlaying a Normalized Difference Vegetation Index (NDVI) with a color infrared layer to select pixels with a geometric pattern or spatial distribution indicative of the weedy patches, other areas in the field being non-segregated areas; normalizing said image data within said non-segregated area using a best crop area as a reference crop area that has sufficient nitrogen to identify a reference pixel within the reference crop area such that the other pixel data in the non-segregated crop area has normalized pixel values with reference to the reference pixel; and prescribing application rates of an agricultural compound to said non-segregated areas dependent on a crop canopy color determined from said other pixels based on the NDVI. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification