Concepts and techniques for processing and rendering of massive 3D points clouds Remote sensing technology such as airborne mobile or terrestrial laser scanning and photogrammetric techniques are fundamental approaches for efficient automatic creation of digital representations of spatial environments. For example they allow us to generate 3D point clouds of landscapes cities infrastructure networks and sites. As essential and universal category of geodata 3D point clouds are used and processed by a growing number of applications services and systems such as in the domains of urban planning landscape architecture environmental monitoring disaster management virtual geographic environments as well as for spatial analysis and simulation. While the acquisition processes for 3D point clouds become more and more reliable and widely used applications and systems are faced with more and more 3D point cloud data. In addition 3D point clouds by their very nature are raw data i.e. they do not contain any structural or semantics information. Many processing strategies common to GIS such as deriving […]