A Qualitative Trajectory Calculus to Reason about Moving Point Objects
Matthias Delafontaine, Seyed Hossein Chavoshi, Anthony G. Cohn, Nico Van de Weghe · Advances in geospatial technologies book series · 2012
A number of qualitative calculi have been developed in order to reason about space and time. A recent trend has been the emergence of integrated spatiotemporal calculi in order to deal with dynamic phenomena such as motion. In 2004, Van de Weghe introduced the Qualitative Trajectory Calculus (QTC) as a qualitative calculus to represent and reason about moving objects. This chapter presents a general overview of the principal theoretical aspects of QTC, focusing on the two most fundamental types of QTC. It shows how QTC deals with important reasoning concepts and how calculus can be employed in order to represent raw moving object data.