This approach is valuable for a
more representative visualization of a site once the researcher
returns to the office, but requires tedious procedures to enable
extraction of data that are fully 3D and oriented (Hagan, 1980).
With the advent of modern digital camera technology, restrictions
around the number of photos that can be collected have
been relaxed and picture quality can be quickly and easily assessed
in the field. Now, the greater limitation lies in achieving optimal
camera positioning relative to the object of interest, whether due to
vegetation, topography, objective hazards, etc