Click one object and get its outline as a polygon. Or name what you want ("buildings", "solar panels", "trees") and get every match across a drawn area as vector polygons, ready to edit and export. No GPU needed.
AI Segmentation by TerraLab turns your imagery into vector polygons that replace tracing by hand. It uses its own detection models, tuned for aerial and satellite imagery.
- Automatic mode: draw a zone on your imagery, type the object ("buildings", "trees", "solar panels") and get every match in one run, with a live preview. It runs on TerraLab servers in Europe, so no GPU is needed.
- Semi-Auto mode: click an object, add positive and negative points, get a clean outline. Choose My computer (local, offline) or Cloud AI (nothing to download).
- Your imagery: orthophotos, drone and satellite images as GeoTIFF, JPG or PNG, and online basemaps (WMS, XYZ tiles).
- Review before you keep: right angles for buildings, expand, contract, simplify, round corners, fill holes.
- Export: GeoPackage, Shapefile or GeoJSON.
- Free tier, no card: 1.5 km² (Automatic) + 20 objects (Semi-Auto) a month. Semi-Auto on My computer has no counter. Plans and limits: https://terra-lab.ai/pricing
- Platforms: QGIS 3.22 to QGIS 4, on Windows, macOS and Linux. 12 languages.
In QGIS, open Plugins > Manage and Install Plugins, search "AI Segmentation", install. A free account unlocks the free tier, no card needed.
- Page, tutorial and plans: https://terra-lab.ai/ai-segmentation
- QGIS plugin repository: https://plugins.qgis.org/plugins/AI_Segmentation/
- Guide: AI Segmentation for QGIS, the complete guide
- Detect building footprints in QGIS: 3 methods
- Detect solar panels in QGIS: 5 methods
- Other TerraLab plugins: AI Agent, AI Edit
- Bugs and requests: https://github.com/TerraLabAI/QGIS_AI-Segmentation/issues
License: GPL-2.0-or-later. Made by TerraLab, terra-lab.ai.
AI Segmentation has two modes with different privacy profiles. Semi-Auto mode asks you where the segmentation runs, on the page you start it from. Pick My computer and your imagery and clicks never leave it. Pick Cloud AI, the offered choice because it needs no download, and small image crops of the area you are working on go to our servers in Europe. The card you pick from says so and links to this policy.
Automatic mode is cloud-powered: the imagery tiles inside the zone you draw are sent to our detection service for processing during the run.
If you sign in, the plugin contacts our server to check your licence and your credits. Usage statistics are on by default and you can switch them off in Account Settings. They carry errors, versions and the words you type, linked to your account, and never your imagery, layers or coordinates. See our Privacy Policy.
The plugin code is GPL-2.0-or-later (LICENSE). The TerraLab names and logos are not covered, see TRADEMARKS.md.
The hosted service (API responses, prompts, model settings) is not in this repository and is not licensed for reuse. Text and data mining rights on it are reserved (EU Directive 2019/790, Art. 4). See our Terms of Use.