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    HEAD AND EYE TRACKING
    2.
    发明公开
    HEAD AND EYE TRACKING 审中-公开
    头部和眼睛跟踪

    公开(公告)号：EP2984628A1

    公开(公告)日：2016-02-17

    申请号：EP14783494.9

    申请日：2014-04-10

    申请人： Auckland Uniservices Limited

    发明人： THOMPSON, Ben ,  TURUWHENUA, Jason

    IPC分类号： G06T7/20 ,  A61B3/14 ,  A61B5/11

    CPC分类号： A61B3/113 ,  A61B3/145 ,  A61B5/0077 ,  A61B5/1114 ,  A61B5/1128 ,  G06T7/0012 ,  G06T7/269 ,  G06T2207/20076 ,  G06T2207/30041 ,  G06T2207/30201 ,  G06T2207/30241

    摘要： Embodiments of the invention relate to a method of extracting eye velocity information from a video footage having a plurality of frames, comprising detecting at least part of an eye in at least two frames of the video footage, applying an optical flow algorithm to the at least two frames of the video footage to extract pixel velocity information, and determining a statistical measure from the pixel velocity information within the detected at least part of the eye. Other embodiments of the invention relate to a method of extracting head image trajectory information from a video footage having a plurality of frames, comprising detecting at least part of a facial region of the head image in at least two frames of the video footage, determining a measure of the movement of the at least part of a facial region between the at least two frames, and determining a transformation map from the measure of the movement.

    摘要翻译： 本发明的实施例涉及一种从具有多个帧的视频画面中提取眼速度信息的方法，包括：检测视频镜头的至少两个帧中的至少一部分眼睛;将光流算法应用于至少 两帧视频素材提取像素速度信息，并根据检测到的至少部分眼睛内的像素速度信息确定统计量度。 本发明的其它实施例涉及一种从具有多个帧的视频画面中提取头部图像轨迹信息的方法，包括：在至少两帧视频镜头中检测头部图像的面部区域的至少一部分;确定 测量至少两帧之间的面部区域的至少一部分的移动，以及根据移动的测量确定变换图。