  For land use monitoring, the main problems are robust positioning in urban
canyons and strong terrain reliefs with the use of GPS system only. Indeed,
satellite signal reflection and shielding in urban canyons and strong terrain
relief results in problems with correct positioning. Using GNSS-RTK does not
solve the problem completely because in some complex situations the whole
satellite's system works incorrectly. We transform the weakness (urban canyons
and strong terrain relief) to an advantage. It is a vision-based navigation
using a map of the terrain relief. We investigate and demonstrate the
effectiveness of this technology in Chinese region Xiaoshan. The accuracy of
the vision-based navigation system corresponds to the expected for these
conditions. . It was concluded that the maximum position error based on
vision-based navigation is 20 m and the maximum angle Euler error based on
vision-based navigation is 0.83 degree. In case of camera movement, the maximum
position error based on vision-based navigation is 30m and the maximum Euler
angle error based on vision-based navigation is 2.2 degrees.
