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"Objects" in Scene Based Reasoning (SBR) represent real-world objects in Scenes. Objects are defined on several layers:

  • On the lowest level, an object is represented by a Scene Graph that the 3D Reconstruction subsystem has created based on camera data.
  • Once "recognized" by the Object Configurator, the object is represented on the symbolic level as an untyped list of key-value tuples ("attributes") with values that can be integers, real numbers, strings or references to other objects. SBR uses a Description Logic notation in order to specify these values and perform basic reasoning about them.

Additional information about an object exist in certain subsystems: