Device, system, and method of detecting user identity based on motor-control loop model

摘要

Device, system, and method of detecting identity of a user based on motor-control loop model. A method includes: during a first session of a user who utilizes a pointing device for interacting with a computerized service, monitoring the pointing device dynamics and gestures of the user; based on the monitored dynamics and gestures, estimating parameters that characterize a sensorimotor control loop model of the user; storing in a database a record indicating that the user is associated with the parameters that characterize the sensorimotor control loop model of the user.

主权项

1. A method comprising:
(a) during a first session of a user who utilizes a pointing device for interacting with a computerized service, monitoring on-screen movements of an on-screen pointer; (b) analyzing the on-screen movements of the on-screen pointer to derive from them estimated dynamics and gestures of the pointing device as utilized by said user; (c) defining a sensorimotor control loop model by utilizing at least a function that takes into account at least (A) a first trajectory parameter indicating current velocity of pointing device movement, and (B) a second trajectory parameter indicating translation error; (d) by analyzing the estimated dynamics and gestures of the pointing device, determining (AA) at least one sensorimotor control loop parameter that characterizes utilization of said pointing device by said user, and (BB) at least one parameter corresponding to a noise characteristics of the sensorimotor control loop that characterizes utilization of said pointing device by said user;
wherein said determining comprises: generating a function that describes the sensorimotor control loop model that causes said on-screen movements of said on-screen pointer; (e) differentiating between (i) said user and (ii) one or more other users, based on (AA) said at least one sensorimotor control loop parameter that characterizes utilization of said pointing device by said user, and (BB) said at least one parameter corresponding to the noise characteristics of the sensorimotor control loop that characterizes utilization of said pointing device by said user.