HEAD TO HEADSET ROTATION TRANSFORM ESTIMATION FOR HEAD POSE TRACKING IN SPATIAL AUDIO APPLICATIONS

    公开(公告)号:US20210400418A1

    公开(公告)日:2021-12-23

    申请号:US17349907

    申请日:2021-06-16

    申请人: Apple Inc.

    IPC分类号: H04S7/00 H04S3/00 H04R5/033

    摘要: In an embodiment, a method comprises: estimating a first gravity direction in a source device reference frame for a source device; estimating a second gravity direction in a headset reference frame for a headset; estimating a rotation transform from the headset frame into a face reference frame using the first and second estimated gravity directions, a rotation transform from a camera reference frame to the source device reference frame, and a rotation transform from the face reference frame to the camera reference frame; estimating a relative position and attitude using source device motion data, headset motion data and the rotation transform from the headset frame to the face reference frame; using the relative position and attitude to estimate a head pose; and using the estimated head pose to render spatial audio for playback on the headset.

    Determination of Device Body Location
    9.
    发明申请
    Determination of Device Body Location 有权
    设备机身位置的确定

    公开(公告)号:US20140364102A1

    公开(公告)日:2014-12-11

    申请号:US13913271

    申请日:2013-06-07

    申请人: Apple Inc.

    IPC分类号: H04W52/28

    摘要: In some implementations, a mobile device can analyze motion sensor data during a voice call to determine whether the mobile device is on a stationary object or worn on a user's body (e.g., in the lap or pocket of a user of the mobile device). The mobile device can adjust the transmit power level of the telephony transceiver during the voice call based on the determination

    摘要翻译: 在一些实施方式中,移动设备可以在语音呼叫期间分析运动传感器数据,以确定移动设备是处于静止物体上还是佩戴在用户的身体上(例如,在移动设备的用户的膝盖或口袋中)。 基于确定,移动设备可以在语音呼叫期间调整电话收发器的发射功率电平

    Head tracking correlated motion detection for spatial audio applications

    公开(公告)号:US12108237B2

    公开(公告)日:2024-10-01

    申请号:US17351205

    申请日:2021-06-17

    申请人: Apple Inc.

    IPC分类号: H04S7/00

    CPC分类号: H04S7/303 H04S2420/01

    摘要: Embodiments are disclosed for head tracking state detection based on correlated motion of a source device and a headset communicatively coupled to the source device. In an embodiment, a method comprises: obtaining, using one or more processors of a source device, source device motion data from a source device and headset motion data from a headset; determining, using the one or more processors, correlation measures using the source device motion data and the headset motion data; updating, using the one or more processors, a motion tracking state based on the determined correlation measures; and initiating head pose tracking in accordance with the updated motion tracking state.