I have been offered two types of point cloud for my 3D Project. The data will be used by the environmental agency in various projects e.g. flood-risk analysis, dyke conservation, and nature conservation.
The first product is from airborne laser scanning and the second from aerial photogrammetry. The accuracy of the data is more important, meaning that +-20cm rounded to mm is more important than having +-1m with 6 decimals places.
Which of these two products would be more accurate in the sense of "correct"?