Classification of ground points problem

[Decks]

I'm trying to generate a DTM to create an orthomotic, but some ground points in the dense cloud are not being sorted at all. By the way I realize they are a bit shifted down.

I'm using a new camera on a fixed wing, can it be something related to that? Does anyone have any suggestions for workflow or something I can try?


I used:

over/sidelap? 80 / 70
Picture Quality: 1.8>
Alignment: Medium (40,000 / 10,000)
Dense Cloud: Medium (agressive)

I was cleaned the sparse cloud with error on reprojection and accuracy


I already did another project and I never had this problem. Tks

[Alexey Pasumansky]

Hello andreg,

Which classification parameters you are using?

[Decks]

I got a much better result now, I used:

Max angle: 10
Max distance: 2
Cell size: 50 m

Is there any formula or tips for using this tool for urban use?