| 摘要 |
<p>In the field of electronics specialized tablets are used to capture signatures, capable of registering, in addition to the shape of the signature, its“biometric data”: the instantaneous speed of the stylus and the instantaneous pressure exerted on the tip. A human can perfectly see and recognize in minimum details the shape of the signature, but cannot evaluate at the same time also instantaneous speed and pressure data; the method, subject of the present invention, solves the problem due to the presentation at the same time of the shape of the signature, of instantaneous pressure and of instantaneous speed, being based on the creation of a three-dimensional graphical representation of the signature with an immediate optical effect, where the signature appears as a three-dimensional solid. Even for an operator without experience in the graphological field it is easy to achieve a quite reliable judgment about the validity of a signature, by comparing its three-dimensional image with that of a reference signature, also three-dimensional.</p> |
