Method and device for touchless signing and recognition

摘要

A touchless sensor device (110) for touchless signing and recognition is provided. The sensor device can include a recognition engine (114) for recognizing at least one finger sign (140), and a controller (120) for composing a text from the recognized at least one finger sign and providing predictive texting. A recognized pattern can be an alphanumeric character or a finger gesture. The controller can generate a trace (145) from the finger sign. The trace can include spatio-temporal information (153) that is characteristic to a touchless writing style. The controller can provide text messaging services, email composition services, biometric identification services, phone dialing, and navigation entry services through touchless finger signing.

主权项

1. A touchless user interface device, comprising:
a sensor device for tracking a movement of a finger gesture in a three-dimensional touchless sensing space, and tracking features comprising a relative location, acceleration and movement of the finger gesture in the three-dimensional sensing space to produce a trace; and a state driven gesture recognition engine for learning gesture characteristics of a textual articulation and a non-stiction writing style in the three-dimensional sensory space from the acceleration and movement features of the trace; discriminating between a 2D writing style and a 3D writing style of the gesture characteristics; and classifying the finger gesture from the stylistic information upon identifying in the trace at least one pattern established from a finger start action and a finger stop action.