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    Video signal motion detecting apparatus
    1.
    发明公开
    Video signal motion detecting apparatus 失效
    Videosignal-Bewegungsdetektor。

    公开(公告)号：EP0242935A1

    公开(公告)日：1987-10-28

    申请号：EP87300297.6

    申请日：1987-01-14

    申请人： RCA LICENSING CORPORATION

    发明人： Weckenbrock, Hermann Johann ,  Roeder, Barbara Joan ,  Casey, Robert Francis ,  Harwood, Leopold Albert ,  Wedam, Werner Franz

    IPC分类号： H04N5/14 ,  H04N5/21

    CPC分类号： H04N5/144

    摘要： A motion detector is provided for detecting interimage motion represented by video signals. For composite video signals, the detector analyses both the chrominance and luminance components for image motion. Interimage motion represented by the luminance component is determined from interimage signal differences. The interimage signal differences (10,20) are separated into high (50,22) and low (22) frequency spectra corresponding to fine and coarse luminance image detail. Selected signal differences from the low frequency spectrum are summed (62) and threshold detected (64) to determine motion in the coarse image detail. The high frequency spectrum of the sample differences are applied to parallel summing circuits (72,76,74,78) which sum different combinations of sample differences in order to discriminate (80,82) motion signals from non-moving chrominance transitions. The detection signals from the high and low frequency motion detectors are combined (86) to produce a luminance motion signal.
    Interimage motion represented by the chrominance component is detected by combining selected ones of interimage signal sums. The interimage signal sums are high pass filtered and applied to parallel combining elements which discriminate chrominance motion from vertical luminance transitions.

    摘要翻译： 提供了一种用于检测由视频信号表示的图像间运动的运动检测器。 对于复合视频信号，检测器分析图像运动的色度和亮度分量。 由图像间信号差异确定由亮度分量表示的图像间运动。 图像间信号差（10,20）被分离成对应于精细和粗糙亮度图像细节的高（50,22）和低（22）频谱。 从低频谱中选出的信号差异相加（62）和阈值检测（64）以确定粗略图像细节中的运动。 将样本差的高频谱应用于并行加法电路（72,76,74,78），其对不同的采样差分组合进行求和，以区分（80,82）运动信号与非移动色度转换。 来自高频和低频运动检测器的检测信号被组合（86）以产生亮度运动信号。 通过组合所选择的图像间信号和来检测由色度分量表示的图像间运动。 图像间信号和被高通滤波并应用于将色度运动与垂直亮度转换区分开的并行组合元件。