Wikipedia
GIPSICAM
Global-Inertial Positioning Systems Image Capture for Asset Management (GIPSICAM) is a mobile-mapping system used internally by the RTA to survey NSW state roads. The main components of the system include multiple redundant GPS receivers, INS (a part of the GIPSITRAC module), data acquisition computers and cameras mounted inside a cupola on the vehicle roof.
The conventional instrument configuration is supported by comprehensive data processing algorithms and advanced geo-referencing techniques optimised for independent positioning and road geometry modelling.