Geo Informatics

Visualization plays a key role in Geo Informatics

Visualization in general means the conversion of symbolic or numeric data into visual information such as images, graphics or maps. Visualization enables GIS-users to capture complex and stereoscopic context, making it an important requirement for correct analysis of planning situations and for making substantiated geographic decisions, such as site selection. Visualization is also an important aid for the presentation and communication of such geographic decisions and their history.

3D photo models (a combination of a 3D surface model consisting of digital ground model and building model with a photo texture), enable simulated walk through fictional cities. Geometry and texture are realistic. With 3D photo models the image is captured physically i.e. a picture is taken! This is in stark contrast to the totally different approach, driven by IT circles, where an artificial texture is created with fictional light effects on artificial surfaces. The goal is to achieve a photo-realistic world. 3D photo models are a new and very attractive photogrammetric result.

3D Photo models can also be extended to a building information system by adding technical data to components, such as windows, doors, chimneys, etc., to a data base. Based on the fact that visual information is taken in and understood much better than information only based in text, numeric data and diagrams, it is obvious that visualization is the perfect medium for planning and design.