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. 
j 
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.