TY - EJOU AU - Penna, Giuseppe Della AU - Orefice, Sergio TI - Using Spatial Relations for Qualitative Specification of Gestures T2 - Computer Systems Science and Engineering PY - 2019 VL - 34 IS - 6 SN - AB - In this paper we present a qualitative spatial relation formalism capable to represent spatio-temporal knowledge. To this aim, we have added the notion of time within the formalisation of spatial relations in order to describe moving graphical objects. As a case study, we exploited this augmented formalism to support a qualitative specification of gestures, which are an increasingly relevant issue in the human-computer interaction field. The resulting technique provides gesture specification with a systematic and formal foundation. KW - Human-Computer Interaction KW - Spatial Relations KW - Spatio-Temporal Knowledge KW - Gesture Specification DO - 10.32604/csse.2019.34.325