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Proceedings International Workshop on Mobile Mapping Technology
Li, Rongxing

Application of Photogrammetric Image Data
for Roadway Construction
Guangping He
Lambda Tech International, Inc.
Waukesha, Wisconsin, USA
he@lambdatech. com
KEY WORDS: Mobile Mapping System, Image Application, Image Rectification
Roadway construction requires rapid and complete information on the roadway environment. For this
challenge, a new attempt has been made by combining the terrestrial images from the GPS Vision mobile
mapping system with digital aerial images. The GPSVision is a moving platform which captures stereo
images at regular intervals. The position and orientation of images are provided by the Global Positioning
System (GPS) and the Inertial Navigation System (INS). After the system is calibrated, every visible feature
which is seen from two images can be located in a global coordinate system. These features are then used to
rectify digital aerial images. From the application perspective, the positions and attributes of physical
facilities, such as rail road signals, traffic signs, road crossing and buildings can be obtained With images in
hands, a typical client can accurately measure and inspect the infrastructures, can simulate the view as one
drives down the road and can create complete vector map with detailed view both from the ground and in
the air.
1. Introduction
Generation of the civil infrastructure is an immense
task. It requires efficiently collecting vast quantities
of data. New technologies offer opportunities to
greatly improve our effectiveness. One of the most
innovative technologies for collecting civil
infrastructure data is the GPSVision -- a Mobile
Mapping System developed by Lambda Tech
International, Inc. It was original designed to help
governments and other agencies to build interactive
GIS databases, and now it becomes a standard
mapping tool for roadway construction and sign
inventory, it is even used in the court for traffic
accident analysis.
The GPSvision mobile mapping system differs itself
with traditional mapping method mainly by its fast
data collection speed and its low cost, for example,
lambda Tech collect and process 2000km road data
monthly with one GPSVision system.
The GPSVision acquires highly detailed, multimedia
data about highways, railroads and other
transportation networks. It uses the Navstar Global
Positioning System(GPS), integrated with an Inertial
Navigation System(INS) along with a state of art
color CCD cameras The result is that any feature
(e g. a manhole) which is “seen” by two cameras
can be precisely located in a global coordinate
A GPS receiver determines the global location of
the system. Depending on the type of the receiver
and the processing software used, positioning
accuracy can range from meters to centimeter.
Because obstructions such bridges, trees, tunnels or
high rise buildings can interrupt satellite signals,
GPS alone can not meet the requirement for a
mobile mapping system. An INS consists of the
accelerometer and gyroscopes. It is a self contained
system. It measures the velocity and direction
changes very accurately for short periods, but its
error grows rapidly with time. An integration
solution of GPS and INS can greatly improve the
system performance GPS is used to update the INS
system and the INS outputs the accurate position,
velocity and attitude of the system between the GPS
The stereo vision system consists of two high
resolution color CCD cameras. It captures stereo
image pairs while the system drives at posted
speeds The images are taken according to a