# Desktop viewer: the AI assistant checks and improves a terrain

> A quarry with no classes at all: the assistant picks a ground filter, measures each try against an independent reference, and tunes it until 97 % of the ground is found.

Page: https://finitor.cl/learn/desktop-ai-terrain

Video: https://finitor.cl/learn/desktop-ai-terrain-en.mp4 — The Mormont quarry (Eclépens, Switzerland), airborne LiDAR swissSURFACE3D 2019 and SWISSIMAGE 2020, © swisstopo, with its classes removed. Each round is checked against swisstopo's own classification of the same cloud: SMRF finds 75 % of the ground, cloth 70 %, Auto 88 %, and Auto with a steeper slope and a wider height tolerance 97 %, with the terrain within half a metre.

## The request

1. Ask for the terrain only, without trees or buildings, with contour lines. The assistant first asks Finitor which ground filter suits airborne LiDAR.

## The rounds

1. After each try it measures the result and reads its own catalogue: where SMRF leaves the bench faces full of holes, the cloth simulation is the usual alternative.
2. The faces stand at 70°, far steeper than the filter expects, so it raises the slope tolerance to 0.5 and the height tolerance to one metre. A steeper setting brought nothing more and let non-ground points in, so it stopped there.

Every value it changed is in the toolbox, where you can change it yourself: the assistant proposes and measures, you decide.

## More about Finitor Cloud

- [Finitor Cloud: photogrammetry and LiDAR in the cloud](https://finitor.cl/)
- [Cloud photogrammetry](https://finitor.cl/fotogrametria-en-la-nube)
- [LiDAR classification](https://finitor.cl/clasificacion-lidar)
- [Point cloud viewer](https://finitor.cl/visor-nube-de-puntos)
- [Pricing](https://finitor.cl/pricing)
- [Features](https://finitor.cl/features)
- [Measured accuracy](https://finitor.cl/accuracy)
- [Cameras and files it reads](https://finitor.cl/cameras)
- [Demonstration: a finished survey](https://finitor.cl/demo)
- [How it works](https://finitor.cl/how)
- [Tutorials](https://finitor.cl/learn)
- [Finitor Desktop, the desktop application](https://finitor.cl/viewer)
- [Contact](https://finitor.cl/contact)
- [Terms and privacy](https://finitor.cl/terms)