Robust camera motion analysis for home video
    1.
    发明授权
    Robust camera motion analysis for home video 有权
    用于家庭视频的强大的相机运动分析

    公开(公告)号:US07312819B2

    公开(公告)日:2007-12-25

    申请号:US10720677

    申请日:2003-11-24

    IPC分类号: H04N5/228 G06K9/00

    CPC分类号: G06T7/20 H04N5/145 H04N17/002

    摘要: A robust camera motion analysis method is described. In an implementation, a method includes analyzing video having sequential frames to determine one or more camera motions that occurred when sequential frames of the video were captured. The one or more camera motions for each frame are described by a set of displacement curves, a mean absolute difference (MAD) curve, and a major motion (MAJ) curve. The set of displacement curves describe the one or more camera motions in respective horizontal (H), vertical (V), and radial (R) directions. The MAD curve relates a minimum MAD value from the set of displacement curves. The MAJ curve is generated from the minimum MAD value and provides one or more qualitative descriptions that describe the one or more camera motions as at least one of still, vertical, horizontal and radial.

    摘要翻译: 描述了鲁棒的摄像机运动分析方法。 在实现中,一种方法包括分析具有顺序帧的视频,以确定在捕获视频的连续帧时发生的一个或多个相机运动。 通过一组位移曲线,平均绝对差(MAD)曲线和主运动(MAJ)曲线来描述每帧的一个或多个相机运动。 位移曲线集描述了水平(H),垂直(V)和径向(R)方向上的一个或多个相机运动。 MAD曲线与位移曲线集合中的最小MAD值相关。 从最小MAD值生成MAJ曲线,并提供描述一个或多个相机运动作为静止,垂直,水平和径向中的至少一个的一个或多个定性描述。