fme usage for mobile mapping based gis data

FME Usage for Mobile Mapping Based GIS DataWesley Teskey and Mohamed ElhabibySenior Geomatics Developer and METI Vice President

April 25, 2012

Overview

Who are we? (METI – Micro Engineering Tech Inc.)

GIS data creation (points, lines and polygons)

GIS data export using FME Processing data in CAD (and other

environments) VISAT features and software usage Conclusion and Questions

Overview: What is VISAT?

Digital cameras Global Positioning System (GPS)

Inertial Navigation Odometer Laser scanners

System Overview

6 cameras 2 laser scanners Integrated GPS,

inertial navigation system and odometer

Image capture at 1 to 10m interval

Autonomy of 800 km/day High accuracy in all survey conditions

GIS Data Creation Using Camera Images

Point and click to add create GIS data

All data are fully georeferenced automatically

Pan to Left Facing Camera

Six cameras take a frame at each epoch (van location)

User can pan between camera frames

Pan to Right Facing Camera

User uses different camera, or the same camera from different epochs, to generate 3D point, line and polygon data

User Defined Layer Structure

The layer structure within the VISAT Station environment is fully user defined and customizable

The user can also add new data features (such as “must enter” reference data for each GIS object created)

Example Layer Structure:

Mapping View

Overhead mapping view is visible for GIS data within VISAT Station

3D View

VISAT Station also has a 3D View window for visualization of GIS Data

FME is used to Export to CAD from VISAT

3D Terrain Surface in CAD from GIS Data

All CAD data created from GIS export are fully georeferenced in a user selected coordinate system

Contour Map in CAD from GIS Data

GIS Data Profiles in CAD

Southwest bound lane

Traffic flow direction in orange (above)

GIS Southwest Bound Lane Longitudinal Profile

More VISAT Capabilities – Construction Example

More VISAT Capabilities – Using Planes

Other VISAT Capabilities

Can utilize overhead (mosaic) imagery gathered from aircraft or satellite – this can help with data verification and accuracy

Can utilize control points to improve data accuracy – the use of control points is integrated into the VISAT environment

VISAT custom software is used for data logging (van driver does not need any special training); also, custom built server software is used to store data for client computers processing the data

Conclusion

VISAT is used to create GIS data (points, lines and polygons) from mobile mapping imagery

Laser scanning is also utilized Data from VISAT can be exported using FME into

CAD (and other formats) VISAT software is designed for high accuracy and

high speed data processing METI both sells VISAT technology and performs

service work using the VISAT system

Thank You!

Questions?

For more information: Wesley Teskey (w.teskey@meng-tech.com) and Mohamed Elhabiby (elhabiby@meng-tech.com)

Micro Engineering Tech Inc. (METI), 1716 16th Avenue NW, Suite 330, Calgary, Alberta T2M 0L7

Phone: 403-457-3112