5A-5-4
r(5,10%)
9.24
9.24
Considering map accuracy classes, the standard error (SE)
in class A maps is equal to 0.3mmE (E is the scale factor),
in class B SE is 0.5mmE, and in class C SE is 0.6mmE, the
null hypothesis (Xcomp - % 2 (s,io%j) is not rejected for class B
maps. The tested ^coordinates were computed by simple
intersection that delivered the best results (maybe because
the large scale variation in two pairs worsens the object
point coordinates).
on real data produced by an almost done prototype (a
vehicle, a GPS receiver, and a pair of digital video
cameras). Too much work is expected to make the
prototype operational, like synchronization and automation
problems.
It is envisioned a very growing market for MM technique
in Brazil because of its continental extensions, road
networks, city planning and facility management needs,
and many other applications.
In the educational domain, the observed result was the
students' enthusiasm caused by the challenge of integrating
different technologies to make a digital and line map. Their
participation was highly motivated during the whole
process.
6 CONCLUSION
The project, although a simulation, showed the potential of
the mobile mapping technology to map urban streets.
Photogrammetric traverse is an option to circumvent the
absence of inertial systems in order to orient the images.
The mainstream is hardly dependent on manual and visual
operating work. In the short future, new projects will rely
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SILVA, J.F.C. & OLIVEIRA, R.A. 1998. Triangulation of
a Sequence of Terrestrial Digital Images. In:
INTERNATIONAL SYMPOSIUM - DATA INTEGRATION:
SYSTEMS AND TECHNIQUES, Cambridge, UK.
Proceedings... ISPRS, v.32, t.2, p.273-7.
TOMMASELLI, A.M.G. & NÓBREGA, R.A. Qualidade
Geométrica de Cámaras Digitais: Avaliaçâo da Cámara
Kodak DC40. In: GIS BRASIL 97, Curitiba, Anais... Curitiba:
Sagres Editora (CD-ROM), 1997.