CIPA 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey
618
Image before geometric
correction
Image after geometric
correction
min value
average value
min value
average value
-0.29161
0.409
0.16964
0.720
Table 3. Difference of correlation coefficient (r)
4. CONCLUSIONS
The DSMs from digital photogrammetry and laser scanning
was compared by overlapping them. To generate the 3D model
of rock surface using Digital photogrammetry, effects of shadow
and large parallax have to be decreased. It is possible to use the
light with stable and strong intensity and direction, and decrease
the large parallax at some part. Generated 3D model of stone
monuments with natural rock slope is used for the conservation
and restoration of cultural heritage.
REFERENCES
Slob, S., Hack, R., and Turner, A., 2002. An approach to
automate discontinuity measurements of rock faces using laser
scanning techniques, EUROCK 2002, Funchal, Madeira Island,
Portugal, pp. 87-94.
Baltsavias, E. P., Favey, E., Bauder, A., Bosch, H., and Pateraki,
M., 2001. Digital Surface Modeling by Airborne Laser
Scanning and Digital Photogrammetry for Glacier Monitoring,
Photogrammetric Record, 17(98), pp. 243-273.
Beraldin, J.-A., Blais, R., Rioux, M., Coumoyer, L., Laurin, D.,
and MacLean, S. G., 2000. Eye-safe digital 3-D sensing for
space applications, Optical Engineering, 39(1), pp. 196-211.
Milkhail, E., Bethel, J., and McGlone, J., 2001. Introduction
to Modem Photogrammetry, John Wiley & Sons, New York, pp.
90.
ACKNOWLEDGEMENTS
The authors wish to express their sincere thanks for the
financial support by Korean Ministry of Science & Technology
(Project No. : M1010500005301H020005500).
