Directional relations composition by orientation histogram fusion

Orientation relations represent a significant component of spatial relations, complementing topological and distance relations, for the description of a spatial scene. The most important operator, in a spatial reasoning model is an operator of composition defining the behavior of the combination of two relations. This paper focuses on the composition of orientation relations modeling by orientation histogram. Composition can be seen as fusion of orientation information derived from the orientation histograms and spatial objects information, represented mainly by vectorial data