Hi
At a bit of a loss, I conducted an aerial survey about 2 months ago of an area of sand dunes, ( 13hectares) I have all these files to look back on, the initial align photo's produced a point cloud of 230,000 points, followed by a dense cloud of 33 million points.
This week I revisited the site to survey again, exactly the same process and same area, same camera and platform, but since the first survey, i have updated agisoft twice, the last just before this project. I am only creating 21000 points now when aligning photos and only 20million as a dense cloud, as far as I am aware all photoscan settings are the same. My main problem lies in geo referencing, as when I have optimised it after inputting all the GCP's the cloud does not leave me many points to remove in gradual selectionin order to create a more accurate model. Can anyone shed any light on this
thanks in advance