Databases Reference
In-Depth Information
Figure 8: Concept of a Scene
4
The structural elements of a scene
In order to transform the information of the actual world to a database, first it is
necessary to think what kind of spatio-temporal information should be observed
and what kind of data can be implemented with. Here we will call the range of the
world that serves as the unit for database transformation a
scene
. As Figure 8
shows, the scene information is divided into the following levels.
•
Information about the scene
Fundamental information about the world to
be transformed, including spatial and temporal range, the standard position
of the coordinate axes, etc.
•
Information about the scene construction
Static information about the place
where the objects that take part in the scene move, e.g. workbench, fields, etc.
•
Information about the major objects taking part in the scene
Dynamic
information concerning the shapes and movements of the objects that take
part in the scene, e.g. workers, robots, tools, balls, etc.
•
General information about a given type of objects
General knowledge data
about the objects, leaving out the individual details. For example in case of
humans the general place where the nose is on the head, etc.
•
Sample data taken from the world outside the scene
Sample data taken by
video cameras, three-dimensional scanners, manometers, thermometers and
other kinds of measuring units. Most certainly, the sample data itself is not
supplied by any kind of information about the movement or meaning of
the objects that take part in the scene.
