Filter device for decimation and interpolation of chrominance components
of a video signal
    1.
    发明授权
    Filter device for decimation and interpolation of chrominance components of a video signal 失效
    用于对视频信号的色度分量进行抽取和插值的滤波器装置

    公开(公告)号:US5323232A

    公开(公告)日:1994-06-21

    申请号:US738140

    申请日:1991-07-30

    IPC分类号: H04N9/64 H04N9/77 H04N11/04

    CPC分类号: H04N9/646 H04N9/77

    摘要: A decimation or interpolation filter is selectively used for decimation or interpolation of pixel data of a chrominance component of a video signal, In general, the chrominance signal and the luminance signal are closely related to each other and their edge pattern data coincide with each other when reproduced on a picture screen. A filter device for decimation or interpolation of the chrominance signal is arranged to perform a number of filtering actions depending on the presence or absence and location of edge pattern data. The present, absence, and location of the edge pattern data is detected using a luminance signal which is neither decimated nor interpolated.

    摘要翻译: 抽选或内插滤波器被选择性地用于对视频信号的色度分量的像素数据进行抽取或插值。通常,色度信号和亮度信号彼此紧密相关,并且它们的边缘图案数据彼此一致, 在图片屏幕上重现。 用于色度信号的抽取或插值的滤波器装置被布置成根据边缘图案数据的存在或不存在以及位置来执行多个滤波动作。 使用既不抽取也不内插的亮度信号来检测边缘图案数据的当前,不存在和位置。