The highest standard deviations σI
of the intensity values were
caused by bright colours (especially white: σI
= ± 0.023) and the
colour of the laser itself (red: σI
= ± 0.019), followed by green
and blue (about ±0.013), while the lowest values were obtained
for black surfaces (about ±0.006). This characteristic proves to
be contrary to the range accuracy – a phenomenon which can be
also observed for a pulsed laser scanner (Voegtle et al. 2008).
Therefore, on the one hand bright surfaces generate high
intensity values, but on the other hand introduce the highest
standard deviations.