| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for cataloguing and recognizing gestures. <P>SOLUTION: A gesture may be detected using sample motion data. An energy value and a baseline value may be computed. The baseline value may be updated if the energy value is below a calm energy threshold. The sample motion data may be adjusted from the updated baseline value. A local variance may be calculated over a predetermined number of samples. Sample motion data values may be recorded if the local variance exceeds a threshold. Sample motion data recording may stop if a local variance scalar value falls below a drop threshold. Input Gestures may be recognized by computing a total variance for sample values in an Input Gesture, calculating a figure of merit using sample values from the Input Gesture and one or more Catalogue Gestures, and determining whether the Input Gesture matches a Catalogue Gesture from the figure of merit. <P>COPYRIGHT: (C)2009,JPO&INPIT |
