In: Wagner W., Szekely, B. (eds.): ISPRS TC VII Symposium - 100 Years ISPRS, Vienna, Austria, July 5-7, 2010, IAPRS, Vol. XXXVIII, Part 7B 
Figure 4. Example of PSI geocoding over the Camp Nou stadium. This is a geocoded map of the residual topographic error estimated 
for each PSI-measured point, which is superimposed over a Google Earth optical image. The different colours represent residual 
topographic error, which roughly corresponds to the elevation with respect to a digital terrain model of the area from the 
Cartographic Institute of Catalonia. 
Figure 5. Example of PSI geocoding over a portion of the Port of Barcelona. In this case, the good geocoding accuracy of the PSI 
results can be observed. The colour of the measured points represents the residual topographic error, which roughly corresponds to 
the elevation with respect to a digital terrain model of the area from the Cartographic Institute of Catalonia, as in Figure 4.