Soil delineation using satellite Image & machine learning

Machine learning algorithms to generate fine scale soil organic matter (SOM) maps using satellite images and digital elevation model data

Transcript

1. SOIL DELINEATION USING SATELLITE IMAGE Seungjin (Michael) Baek images courtesy of FarmLogs
2. Services to help Farmers Manage Crops
3. Soil Contents to Improve Crop Health
4. USDA Soil Data too big of a Scale for Farms USDA SOIL MAP POLYGON 0.5 miles 500 feet
5. USDA Soil Data too big of a Scale for Farms ML Algorithm for a Finer Scale Soil Map Deliverable USDA SOIL MAP POLYGON SATELLITE IMAGE 0.5 miles 500 feet
6. Feature Engineering Collect API Data 50 ~ 60 images per location
7. Feature Engineering Remove Cloud Cover CLOUD COVER 50 ~ 60 images per location
8. Feature Engineering 50 ~ 60 images per location Remove Cloud Cover
9. 50 ~ 60 images per location Normalize each color bands (5) Feature Engineering
10. Feature Engineering 50 ~ 60 images per location Extract Features 7 Features: • Blue • Green • Red • Red Edge • Near Infrared • WDRVI • DEM
11. Generating Finer Soil Maps K-MEANS CLUSTERING color = cluster # Spatial Variability based on Image Brightness & Elevation Data
12. Generating Finer Soil Maps K-MEANS CLUSTERING color = cluster # color = soil organic matter (in %) SOM (%) USDA ORIGINAL K-Means captures more variability than USDA
13. Generating Finer Soil Maps K-MEANS CLUSTERING color = cluster # color = soil organic matter (in %) SOM (%) USDA ORIGINAL K-Means captures more variability than USDA N O T Q U A N TITATIVE
14. Quantifying K-Means Clusters Label Soil Value by Majority Vote
15. Quantifying K-Means Clusters Label Soil Value by Majority Vote
16. Quantifying K-Means Clusters Label Soil Value by Majority Vote
17. Deliverable: More Detailed Soil Map SOM (%) USDA NEW SOIL MAP
18. Deliverable: More Detailed Soil Map river SOM (%) USDA NEW SOIL MAP Captures Lands Features!
19. Better Crop Management Through Improved Maps USDA SOM (%) NEW SOIL MAP
20. Deliverable: Algorithm For Improved Soil Map NEW SOIL MAP
21. $10/acre NEW SOIL MAP Deliverable: Algorithm For Improved Soil Map
22. Farmers ~$300,000 $10/acre NEW SOIL MAP Save Farmers Thousands in Overhead Costs Deliverable: Algorithm For Improved Soil Map
23. Seungjin (Michael) Baek Ph.D. in Civil & Environmental Engineering - Environmental Fluid Mechanics Consulting engineer past 10 years
24. SUPERVISED LEARNING
25. DECISION TREE REGRESSOR COMPLEXITY PERFORMANCE