Using aerial photography to generate DTMs for surveying work- however when I output meshes inevitably the sides and bottom surfaces of the bounding box are output also. I realize this is probably due to inclusion of scattered points generated in the reconstruction (noise), but is there an easy way to get rid of these.
I’m assuming that the Filtering function is used for this but not sure how to utilize this for this purpose. Is there a way for example to delete points that are not within a certain distance from another point?
Example reconstruction in RC (note scattered points below ground surface):
Output textured model of same:
Hi peterwatson
For now it’s not possible to filter them out. But you can change the RECONSTRUCTION REGION to a bit smaller size than the current reconstruction and then use FILTERING to remove it. It’s work for max 20 seconds…
Thanks Wishgranter,
Is it normal that I need to re-colour and re-texture the filtered model after running the Filtering tool ?
pete
peterwatson wrote:
Thanks Wishgranter,
Is it normal that I need to re-colour and re-texture the filtered model after running the Filtering tool ?
pete
Hello Peter,
Yes, it is normal. Filtering out some triangles changes geometry of the model. And since the texture of the model is associated with geometry, textures have to be recalculated for new geometry.
However filtering is task, when it shouldn’t be always necessary to recalculate whole texture (this is just my opinion). But I have to say there are many cases, when it have to be done, e.g. when you filter triangles, which occlude others.
