StreetMapper is a result of a joint venture with German guidance and navigation specialist IGI mbH, which enables rapid and accurate 3D laser mapping from a moving vehicle. The latest developments for �architectural surveying� are currently being evaluated with cityscape mapping projects underway with universities in
IGI have upgraded their TERRAControl navigation system especially for city modelling applications where there is reduced GPS visibility due to tall buildings. Using a technique called �Direct Inertial Aiding�, an inertial navigation system assists the GPS receiver in areas of poor GPS signals. After losing the GPS signal when passing a tall building, the receiver can rapidly lock on to GPS signals again and maintain positional accuracy.
�3D cityscapes are increasingly providing city authorities, architects and developers with an invaluable tool to assess the impact of proposed changes to our cities. The computer-generated 3D models allow existing and proposed developments to be viewed from any angle and orientation. This allows anyone to undertake an on-screen walk around or fly through of an area and project planners can add and change developments easily to illustrate the impact on the environment,� explained Dr Graham Hunter, Managing Director of 3D Laser Mapping.
Source : www.3dlasermapping.com
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