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    • 3. 发明授权
    • Method for treating inter-frame motion in a composite video signal
    • 在复合视频信号中处理帧间运动的方法
    • US07443454B2
    • 2008-10-28
    • US11240718
    • 2005-10-01
    • Ramesh M. ChandrasekaranWeider Peter ChangKarl Renner
    • Ramesh M. ChandrasekaranWeider Peter ChangKarl Renner
    • H04N9/78H04N5/21
    • H04N5/144
    • A method for treating inter-frame motion in a series of consecutive signal frames of a composite video signal includes the steps of, for an evaluation pixel position in each frame of a test frame-set including three successive signal frames: (a) determining whether there is at least a predetermined difference in chroma component or in luma component signals at the evaluation pixel; (b) if in step (a) there is not a predetermined difference in chroma component signals or in luma component signals, determining whether a first and third frame of the test frame-set are substantially identical; (c) determining whether at least a first predetermined number of the luma or chroma component signals in the test frame-set present at least one false color; and (d) determining whether at least a second predetermined number of high frequency luma component signals exist in the test frame-set.
    • 一种用于处理复合视频信号的一系列连续信号帧中的帧间运动的方法包括以下步骤:对于包括三个连续信号帧的测试帧集合的每个帧中的评估像素位置:(a)确定是否 评估像素处的色度分量或亮度分量信号中至少存在预定的差异; (b)如果在步骤(a)中色度分量信号或亮度分量信号中没有预定的差异,则确定测试帧组的第一和第三帧是否基本相同; (c)确定测试帧组中至少第一预定数量的亮度或色度分量信号是否存在至少一种假色; 和(d)确定在测试帧组中是否存在至少第二预定数量的高频亮度分量信号。
    • 4. 发明授权
    • Motion detector for a video display system
    • 用于视频显示系统的运动检测器
    • US07453525B2
    • 2008-11-18
    • US11135799
    • 2005-05-24
    • Karl RennerWeider Peter ChangRamesh M. Chandrasekaran
    • Karl RennerWeider Peter ChangRamesh M. Chandrasekaran
    • H04N9/78H04N5/14
    • H04N11/146H04N5/145H04N9/66H04N9/77H04N9/78H04N11/165
    • Systems and methods are provided for detecting motion within a composite video signal. A first chroma difference element compares an in-phase chroma component of the composite video signal to a delayed representation of the in-phase chroma component to produce a first chroma difference value for a given pixel. A second chroma difference element compares a quadrature chroma component of the composite video signal to a delayed representation of the quadrature chroma component to produce a second chroma difference value for the pixel. A parameter mapping component maps the first and second difference values to respective first and second motion parameters that indicates the degree of change in the chroma properties of the pixel. A parameter selector determines a composite motion parameter for the pixel from the first and second motion parameters.
    • 提供用于检测复合视频信号内的运动的系统和方法。 第一色差元件将复合视频信号的同相色度分量与同相色度分量的延迟表示进行比较,以产生给定像素的第一色度差值。 第二色差元件将复合视频信号的正交色度分量与正交色度分量的延迟表示进行比较,以产生像素的第二色度差值。 参数映射组件将第一和第二差分值映射到指示像素的色度特性的变化程度的相应的第一和第二运动参数。 参数选择器从第一和第二运动参数确定像素的复合运动参数。