On the basis of the mean scale factors of the Tomb’s photos and
to experimental evaluation of the root mean square of the points
plotted, we have assumed the size of the differences without
significant within the range of ± 2 cm.
Observing the table 2, what is most evident in the results is that
the residuals are mainly comprised in the range of ± 2 cm in
agreement with the mean scale factor of the photos.
The differences of distances further than appear to be dependent
from the advised direction (figure 9). They highlight a
systematic extension in the geometry of the object along the
vertical bearing in respect of the Socet Set solution, considered
like Datum for these comparisons.
The reasons of this systematic error may be that the accuracy in
the restitution by means of monoscopic systems is restricted
using photos taken at ground level with limited intersection
angles. To confirm and quantify this effect, further studies with
additional camera positions may be necessary for the test.