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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004
e Photo taking expense including chartering fee of
airplane
e Cost of film and development
e Printing expenses including the contact printing paper
e Scanning expense for digitalization
On the other hand, the costs other than photo taking expense are
unnecessary in case of aerial photographing by DMC, and the
saving rate of cost reaches to the range from 50% to nearly 80%.
In addition, since photo taking expense is roughly proportional
to the flying time of airplane, the unit price of images can be
reduced by increasing the number of photos taken within the
same time frame in case of photo taking plan with high
overlapping ratio.
7. CONCLUSION
It was confirmed that the true orthophoto generated by our
study has quire an effective image quality as the basic data that
can be used for construction control relating to the narrow road.
Seeing from the cost performance and image quality of DMC, it
has become clear that it is possible to generate the true
orthophoto at the almost similar cost of conventional
orthophoto by applying simplified processing conforming to the
purpose. Large scale is used for the projects which require the
true orthophoto. It is assumed that the acquisition of vector data
has been required in these projects. It is considered to be
possible to more inexpensively generate the true orthophoto by
acquiring the vector data taking into account the generation of
true orthophotos.
REFERENCES
Shibuya-ward, 2003, Lands and Buildings of Shibuya-ward (A
summary of statistics of Land use in 2001
Heier, H, 2001, Deploying DMC in Today's workflow, 48"
Photogrammetric week.
Neumann, K, 2003, Aerial Mapping Cameras-Digital versus
film the benefits of a new technology, ASPRS2003 annual
conference.