Patent ID: 8390579

Claim:
A system for classifying gestures executed by a user on a surface or in a graphical interface, the system comprising a meta-classification module which jointly analyzes kinematic and spatial characteristics of an arbitrary gesture undergoing execution, wherein the gesture comprises characteristics of at least acceleration and curvature, and classifies this gesture based on both characteristics into a class belonging to a group of classes comprising: class C 1 comprising gestures corresponding to prolonged regular movement, of low speed, low acceleration, prolonged duration, and indeterminate shape; class C 2 comprising gestures corresponding to rectilinear fast movement, of high acceleration, brief duration, and quasi-rectilinear shape; one of class C 3 or class C 4 , wherein: class C 3 comprises gestures corresponding to rotational movement to the left, more or less curved at the outset with a low or high acceleration, transforming into a fairly fast rotation to the left or to the right, and class C 4 comprises gestures corresponding to rotational movement to the right, more or less curved at the outset with a low or high acceleration, transforming into a fairly fast rotation to the left or to the right; and class C 5 comprising gestures with a high acceleration at the outset, and at least one curvature or at least one angle; wherein: class C 1 corresponds to a class of direct manipulation synchronous gestures, class C 2 corresponds to a class of asynchronous gestures, class C 3 and class C 4 wherein each corresponds to a class of dynamic gestures, and class C 5 corresponds to a class of symbolic gestures.