In the point cloud georeferencing process a 3D transformation is computed between the local project coordinate system and a geodetic coordinate system.

It also participates in data acquisition, aerial photography, satellite image acquisition, field surveys and the constitution of geodetic systems.

It is therefore the most-used geometric figure for defining reference ellipsoids, upon which cartographic and geodetic systems are based.

As of 2010 the Bessel ellipsoid is the geodetic system for Germany, for Austria and the Czech Republic.

HGRS87 replaced an earlier de facto geodetic system.

His work included research in statistics, deformation measurements, variance-covariance estimations in geodesy and immobiles, optimization of geodetic networks and datum transformations of geodetic systems, and satellite altimetry.

A datum (plural datums) is a set of values used to define a specific geodetic system.

A unified geodetic system for the whole world became essential in the 1950s for several reasons:

Latitude and longitude values can be based on different geodetic systems or datums, the most common being WGS 84, a global datum used by all GPS equipment.

The primary objectives were improving Japan's geodetic triangulation network, determining the position of remote islands, and integrating Japan's geodetic network with geodetic systems used in other parts of the world.