Verifying a user
    3.
    发明授权

    公开(公告)号:US10008206B2

    公开(公告)日:2018-06-26

    申请号:US13551313

    申请日:2012-07-17

    摘要: Verifying a user, such as, but not limited to, a user who answered questions for an unproctered test for employment. A representation of a transition pattern is stored (200). Time series voice data is received from a user responding to a sequence of questions (72) having multiple levels of difficulty. The transition pattern in the voice data (200) is based on a plurality of comparisons (503) of subsets (500) of the voice data corresponding to responses to questions having one or more different levels of difficulty. A further transition pattern (200) is determined from voice data in the same way but based on a shorter sequence of questions (78). The user is verified based on a comparison (78) of this further transition pattern to a previously stored transition pattern.

    Dynamic hand gesture recognition using depth data

    公开(公告)号:US09990050B2

    公开(公告)日:2018-06-05

    申请号:US15334269

    申请日:2016-10-25

    IPC分类号: G06K9/00 G06F3/01 G06K9/62

    摘要: The subject disclosure is directed towards a technology by which dynamic hand gestures are recognized by processing depth data, including in real-time. In an offline stage, a classifier is trained from feature values extracted from frames of depth data that are associated with intended hand gestures. In an online stage, a feature extractor extracts feature values from sensed depth data that corresponds to an unknown hand gesture. These feature values are input to the classifier as a feature vector to receive a recognition result of the unknown hand gesture. The technology may be used in real time, and may be robust to variations in lighting, hand orientation, and the user's gesturing speed and style.