Question about copy and paste strategy

[zoomkinseok]

Thanks for the interesting research. I understand filtering the points that are occluded by objects in the GT-sampling step. However, in GT sampling, objects can be created in unexpected spaces. Is there a way to get rid of GT sampled objects if they are created behind walls or behind non-annotated objects? In lidar image fusion, this situation seems to hinder learning.

thank you Minseok