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New perspectives to save cultural heritage
Altan, M. Orhan

CIP A 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey
(compare Figure 3 and 4). The coordinates of the
reflectors have been measured by a total station
providing the data in the tie point list PRCS. A single
person has carried out the complete acquisition within
2 hours net time.
Merging the scans and thus registering the scans in the
project coordinate system has been done in the field in
order to check data coverage immediately. After corre
cting the mounting calibration of the camera, the image
information was ready for being applied already in the
Figure 3: R1EGL LMS-Z360 with Nikon camera mounted on top at
work scanning the arena in Verona, Italy.
Figure 4: Retro-reflective targets used for merging the scans.
Figure 5: Total view of the online - merged point cloud data from a
virtually elevated position (to the right of the image). The color of
each point has been taken from the corresponding camera image. To
the left the tree structure displays the several scan positions and the
files at a single scan position.
6 Summary
The combination of high-performance laser imaging
sensors with high-resolution digital cameras, which are
calibrated and firmly fixed to the scanner, forms a
measurement system providing the advantages of both
field of laser scanning and photogrammetry. The
software package RiSCAN PRO allows performing all
necessary tasks to merge the data of both sensors, the
laser sensor and the camera and provides the data in an
organized, open and well-documented format for
further processing and archiving.
Figure 6: Detail of the scan data showing a part of the point cloud
data. The vertex color is again taken from the corresponding image.