Method and apparatus for gesture recognition

A gesture recognition method comprising steps of:

• (a) storing an eigenvector and an eigenvalue for each recognizable gesture;
• (b) receiving a signal from which to determine a gesture, as an input, from a radar apparatus;
• (c) computing an inner product of the signal from which to determine the gesture and the eigenvector;
• and
• (d) comparing the computed inner product with the eigenvalue in the database and thus determining the gesture,
• wherein the eigenvector is extracted from signals of all recognizable gestures, and each of the eigenvalues for the respective recognizable gesture is an inner product of the eigenvector and the signal for a corresponding one of the recognizable gestures.

A gesture recognition apparatus comprising:

• a database in which an eigenvector and an eigenvalue for each recognizable gesture are stored for a signal that is input through a radar apparatus and a signal that results from removing background information from the signal that is input through the radar apparatus:
• an input unit that receives a signal from which to determine a gesture, as an input, from the radar apparatus:
• a filter unit that removes the background information from the signal from which to determine the gesture:
• and
• a computation unit that computes an inner product of a signal matrix relating to each of the signal from which to determine the gesture and the signal that results from removing the background information and the eigenvector:
• and
• a gesture determination unit that compares the computed inner product with the eigenvalue in the database,
• wherein the eigenvector is extracted from signals of all recognizable gestures, and each of the eigenvalues for the respective recognizable gestures is an inner product of the eigenvector and a corresponding one of the signals for the respective recognizable gestures.