How to select specific input data for A.I. Inference

[Work In Progress]

Editor → Current Situation (Ribbon tab) → Overlays (Ribbon bar)

It is possible to mask the image layer of a satellite input in a Combo Overlay. This way you can specifically in- or exclude certain areas from the Inference Overlay. Below you will find two examples, which require that you already have a regular inference overlay set up.

Exclude open water areas from an Inference Overlay

How to exclude open water from an Inference Overlay:

1. Add an Average Overlay, we will use this to assign water areas.
2. With this overlay selected, set the input options to "Attribute: Specific Layer" and "Terrains".
3. Because we want a sharp distinction between water and land, we set the cell averaging distance to 0 meters.
4. As attribute to look for, we select "WATER".
5. Select finally "Update Now", and you have created an overlay that displays all open water areas.
6. Now add a Combo Overlay.
7. Select the Original Satellite overlay as input for Grid A.
8. Select the Avg Water Terrains overlay as input for Grid B.
9. Enter the following formula: "IF(GT(B, 0), NO_DATA, A)". This formula checks wether a point is in a water area. If so, return no data, else return the satelite image.
10. Select again "Update Now".
11. Now use this new combo overlay with a fitered satelite image as input for your inference overlay, and update. You have now excluded open water areas from your inference overlay.

• 
  AVG Water Areas overlay settings

Notes

• The detected foliage overlay can be used to import as trees or foliage areas into your project.

How-to's

• How to import trees based on an Inference Overlay
• How to create foliage height areas based on an Inference Overlay
• How to detect foliage using an Inference Overlay