About the parameters in different environments

[moonsheep99]

Hello! Thanks for this great work!
I'm trying to use it for ground segmentation of point clouds in an indoor environment, which is relatively narrow.
I have adjusted some parameters, but the segmentation is not as accurate as it is outside. There are many error points that are segmented as ground points, including ceilings, objects on the ground, and a few vertical walls. Would you give some suggestions on parameter adjustment？
The picture is as follows (The red points are the ground points segmented by patchwork++):