The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B3h. Beijing 2008
9. CONCLUSION
MMS are efficient and cost effective tools for building and
updating GIS databases. However, manual measurements of
GIS features in MMS are still manpower demanding procedure.
We have initiated a wide scope project for automated GIS
features extraction, to decrease and possibly eliminate the most
of the human work in the post-processing. In this paper, we
present ARVEE, a robust automatic functional road geometry
extraction system for MMS. There are three innovations in
ARVEE. First, instead of only extracting the central lane line or
the nearby lane line pair, our system extracts all the visible lane
lines in the georeferenced image sequences. Second, the lane
line attributes are recognized, so the output is a functional
description of the road geometry. Third, the output is the high
accurate absolute-georeferenced models which are compatible
to the GIS database. Test over massive real mobile mapping
demonstrate that ARVEE are ready for the real world
applications.
10. REFERENCE
El-Sheimy, N. and K.P., S., 1999. Navigating Urban Areas by
VISAT - A Mobile Mapping System Integrating
GPS/INS/Digital Cameras for GIS Applications. Navigation,
Journal of the USA Institute of Navigation Journal, 45(No. 4),
pp. 275-286.
Ishikawa, S., Kuwamoto, H., et al., 1988. Visual navigation of
an autonomous vehicle using white line recognition. IEEE
Transactions on Pattern Analysis and Machine Intelligence,
10(5), pp. 743-749.
Kenue, S. K., 1991, LANELOK. An algorithm for extending
the lane sensing operating range to 100 feet. Proceedings of
SPIE - The International Society for Optical Engineering,
Boston, MA, USA, 1388, pp. 222-233.
Jochem, T. M., Pomerleau, D. A., et ah, 1993, "MANIAC": A
Next Generation Neurally Based Autonomous Road Follower.
Image Understanding Workshop, pp. 473—479.
Figure 13: ARVEE result overlapped on map
In order to evaluate the misdetection rate and false detection
rate of ARVEE, over 25 kilometres (more than 100,000 meters
lane lines) survey data are first automatically processed by
ARVEE, and then corrected manually. The manually corrected
result (MCR) is viewed as a reference, and compared with the
automatic result (AR). All the lane lines appear in MCR but not
in AR are count as misdetection (MD), and all the lane lines
appear in AR but not in MCR are viewed as false detection. The
misdetection and false detection rate is calculate based on the
length of the lane lines. The statistics of the test are shown in
Table 1.
Length (meter)
Percentage
Total Lane Line
102,732
100%
False detection
9,889
9.62%
Miss-detection
2,510
2.4%
Table 1: Performance statistics of ARVEE
The major causes of the misdetection are worn-out lane lines,
and heavy occlusion. The major causes of false detection are
lane-line-similar structures near the road, such as the edge of
side walks, or the line shapes in the nearby vehicles. Figure 14
and Figure 15 show examples of misdetection and false
detection. In Figure 14, there is a worn-out dashed white lane
line in the right side of the road, and is misdetected.
Chen, K. H. and Tsai, W. H., 1997. Vision-based autonomous
land vehicle guidance in outdoor road environments using
combined line and road following techniques. Journal of
Robotic Systems, 14(10), pp. 711-728.
Beauvais, M. and Lakshmanan, S., 2000. CLARK: A
heterogeneous sensor fusion method for finding lanes and
obstacles. Image and Vision Computing, 18(5), pp. 397-413.
Paetzold, F. and Franke, U., 2000. Road recognition in urban
environment. Image and Vision Computing, 18(5), pp. 377.
Yim, Y. U. and Oh, S.-Y., 2003. Three-feature based automatic
lane detection algorithm (TFALDA) for autonomous driving.
IEEE Transactions on Intelligent Transportation Systems, 4(4),
pp. 219-225.