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Figurel2. the generation of DEM 
Figurel3. orthophoto imagery 
5. EXPERIMENTS 
As a research result, the UAV mapping system MAP-UAV has 
carried out several experiments. 
An experiment of digital orthophoto map production has been 
carried out in Guizhou province (Figure 14.). The experimental 
area has 38 square kilometres with 1100 meters height above 
sea level. It is an agriculture area. The produced digital 
orthophoto maps have achieve the standard 1:2000 precision, 
which have been applied to land administration. 
An experiment of 1:500 scale orthophoto productions has been 
carried out at Guangzhou downtown with 1 square kilometre. 
The products have been applied to urban planning (Figurel5.). 
An experiment for three dimensional modelling of city building 
has been carried out at Weihai City (Figure 16.). The downtown 
area is 61 square kilometres. More than 20,000 buildings’ three 
dimension model are constructed. And the result can be 
observed with Virtual reality system. And it also has been 
applied in urban planning. 
Figurel4. Huishui of Guizhou province 
Figure 15. the orthophoto imagery of Niede in Guangzhou city 
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Figure 16. a 3 dimension scene of Weihai city 
6. CONCLUSION 
The study on above prove that, to solve the question of 
limitation about load of UAV platform, we can design the light 
and small combined super-wide-angle camera which has the 
self-calibration function to construct the practical low attitude 
UAV system combining with the use of powerful automatic 
photogrammetric processing software. The system makes it fast 
and flexible to get the high resolution digital and optical image. 
It can support the application of large-scale mapping. 
REFERENCES 
Wang Zhizhuo, 1979. Principle of photogremmetry. 
Publishing House of Surveying and Mapping, Beijing, China. 
Pinkney F, et al. UAV communications payload development. 
MILCOM 97 Proc. Volume: 1, 2-5 Nov. 1997. pp: 403-407. 
Pegasus: The low cost, high precision remote sensing solution. 
http://www.pegasus4europe.com/pegasus/haleuav.htm