Multiple day mapping index aggregation and comparison

• US 10,685,228 B2
• Filed: 01/12/2018
• Issued: 06/16/2020
• Est. Priority Date: 01/12/2017
• Status: Active Grant

• Current Assignee: Sentera Incorporated
• Original Assignee: Sentera Incorporated
• Inventors: Muehlfeld, Andrew, Hui, Justin, Plumbo, Reid, Tinguely, Joe
• Primary Examiner(s): Park, Edward
• Application Number:
  US15/870,554
• Publication Number:
  US 20180196987A1
• Time in Patent Office: 886 Days
• CPC Class Codes: G06T 5/40 using histogram techniques
• CPC Class Codes: G06V 10/507 Summing image-intensity values; Histogram projection analysis
• CPC Class Codes: G06V 10/758 Involving statistics of pixels or of feature values, e.g. histogram matching
• CPC Class Codes: G06V 20/13 Satellite images
• CPC Class Codes: H04N 1/4074 using histograms
• CPC Class Codes: H04N 1/6063 dependent on the contents of the image to be reproduced

Abstract

Index-based geospatial analysis may include applying a first and second index-based analysis for a set of imagery. The set of imagery may include a location-specific index values used to form a histogram for a single index image (e.g., for a single surveyed field). This first analysis may be referred to as an “acre-to-acre” mapping, which may be useful for identifying differences in indices (e.g., NDVI vegetative health) of different parts of the field from a single day. A second “day-to-day” index-based analysis may be performed by calculating a histogram for each set of imagery from multiple days, combining the histograms, and generating a single equal-area index map. The index map can be applied to redistribute the histogram values within multiple days of data, which may provide a more useful map of variation in each individual image and changes between images.

Claims

1. A precision agriculture remote sensing index synthesis system comprising:

one or more processors;

a storage device comprising instructions, which when executed by the one or more processors, configure the one or more processors to;

receive a plurality of remote sensing index data sets generated by one or more remote sensing systems, the remote sensing index data sets relate to an agricultural field;

generate an aggregated histogram based on the plurality of remote sensing index data sets;

receive a selection of a first remote sensing index data set from the plurality of remote sensing index data sets;

generate a visual representation of the first remote sensing index data set based on the aggregated histogram; and

display the visual representation on a display device.

2. The system of claim 1, wherein each remote sensing index data set includes a plurality of index bins, each index bin corresponding to a range of index values of the agricultural field within each remote sensing index data set.

3. The system of claim 1, the instructions further configuring the one or more processors to identify a plurality of data set visual bins based on a comparison between the first remote sensing index data set and the aggregated histogram, wherein the generation of the visual representation of the first remote sensing index data set includes generating an index data set representation based on the plurality of data set visual bins.

4. The system of claim 3, wherein identification of the plurality of data set visual bins includes selecting a visual bin color for each of the plurality of data set visual bins.

5. The system of claim 1, the instructions further configuring the one or more processors to generate an index data histogram based on the first remote sensing index data set, wherein the generation of the visual representation of the first remote sensing index data set includes generating an index histogram representation based on the index data histogram.

6. The system of claim 1, the instructions further configuring the one or more processors to:

receive a selection of a second remote sensing index data set from the plurality of remote sensing index data sets; and

generate an index data histogram based on the second remote sensing index data set;

wherein the generation of the visual representation of the first remote sensing index data set includes generating an index histogram representation based on the index data histogram.

7. The system of claim 6, wherein the generation of the index histogram representation includes generating a contour line corresponding to the index data histogram.

8. The system of claim 1, wherein each remote sensing index data set within the plurality of remote sensing index data sets includes an image from the one or more remote sensing systems.

9. The system of claim 1, further comprising a memory that stores the aggregated histogram.

10. A geospatial index synthesis system comprising:

one or more processors;

a storage device comprising instructions, which when executed by the one or more processors, configure the one or more processors to;

receive a plurality of geospatial index data sets generated by one or more geospatial remote sensing systems, each geospatial index data set including a plurality of index bins, each index bin corresponding to a geospatial area within each index data set;

generate an aggregated histogram based on the plurality of geospatial index data sets;

generate a plurality of individual histograms, each of the plurality of individual histograms including a summed number of pixels of each index bin within each of the plurality of geospatial index data sets;

generate a per data set percentage of pixels for each index bin by dividing a total number of pixels for each index bin by a total number of pixels for all index values; and

generate an averaged pixel-based data set by averaging a percentage of pixels of each index bin across each data set, the averaged pixel-based data set indicating a percentage of pixels for each index bin;

wherein the generation of the aggregated histogram is further based on the pixel-based data set and on the per-data set percentage of pixels; and

a memory to store the aggregated histogram.

11. A geospatial index synthesis system comprising:

one or more processors;

a storage device comprising instructions, which when executed by the one or more processors, configure the one or more processors to;

receive a plurality of geospatial index data sets generated by one or more geospatial remote sensing systems, each geospatial index data set including a plurality of index bins, each index bin corresponding to a geospatial area within each index data set;

generate an aggregated histogram based on the plurality of geospatial index data sets;

generate a per data set summation of pixels for each index data set by summing a total number of pixels of each index bin; and

generate a summed pixel-based data set by summing the total number of pixels of each index bin across each data set;

wherein the generation of the aggregated histogram is further based on the summed pixel-based data set; and

a memory to store the aggregated histogram.