These Spanish authors claim to present “a complete analysis of the positional errors of terrestrial laser scanning (TLS) data based on spherical statistics and 3D graphs.” This is something that I think we should all be interested in.
They go on to say “Spherical statistics are preferred because of the 3D vectorial nature of the spatial error. Error vectors have three metric elements (one module and two angles) that were analyzed by spherical statistics.”
They conclude that the spherical method is superior in that it offers a more complete analysis of the positional accuracy. It does seem to make sense.
