How many points after Gradual Selection?

[Lupus]

I want to use the Gradual Selection tool to erase bad positioned points.
My sparse cloud consists of 42409 points. I used Image count with level 3. 31411 point were selected.
So 10968 points, or 26 % of the origin sparse cloud were left after this step.

Are these to few points to get an accurate model?

[Alexey Pasumansky]

Hello Lupus,

I don't recommend to remove too much points from the sparse cloud, because having too small number of matching points between image pairs will lead to skipping such pairs in the depth maps generation process, so that the dense cloud may be inaccurate or have holes in it.