The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008 
219 
For the verification of the orthophotoplan precision the sets of 
image coordinate are compared with the correspondent ones in 
the field. We close with a synthetic table referring to the 
precision requested in the DTM and orthophotoplan realization, 
according to the flight scale and the orthophoto scale: 
Flight scale 
Orthophoto 
scale 
DTM 
precision 
Orthophoto 
precision 
1:25,000 
1:5,000 
± 1.00 m 
± 1.50 m 
1:12,000 
1:2,000 
± 0.50 m 
± 0.60 m 
1:6,000 
1:1,000 
± 0.25 m 
± 0.50 m 
4. CONCLUSIONS 
During the transition/post-transition period, the National Project 
and the applications in the field of digital photogrammetry (in 
both hypostases - hybrid and complete) proved to be adequate 
to the national interest and to the requests of the European 
integration: economical development, social stability and 
environment management. In truth, according to Romania’s 
long-term strategy, the orthophotoplan represents the 
informational fundament for the realization of the index 
cadastral plan, but also for the realization of thematic GISs, for 
the LPIS (Land Parcel Information Systems), which is 
stringently current for the subsidizing of Romanian agriculture 
by the European Union.