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1. 发明授权

US5668609A Motion detector and key signal interpolator using same 失效
标题翻译：运动检测器和使用相同的键信号插值器
公开(公告)号：US5668609A
公开(公告)日：1997-09-16
申请号：US303242
申请日：1994-09-08
申请人： Brion L. Dunbar , Daniel J. Chaplin
发明人： Brion L. Dunbar , Daniel J. Chaplin
IPC分类号： H04N11/04 , H04N5/14 , H04N9/75 , H04N9/77 , H04N7/32
CPC分类号： H04N9/75 , H04N5/144
摘要： A motion detector and improved key signal interpolator using the same inputs a video signal to both a frame and a field based interpolator to produce both frame and field interpolated signals. The frame and field interpolated signals are input to a mixer. The frame interpolated signal also is input to a frame delay circuit, the output of which is subtracted from input to produce a motion signal. The motion signal is converted by an absolute value/lookup table into a mix signal that is also input to the mixer. The mix signal determines which interpolated signal at the input is passed to the output, the field interpolated signal being passed when motion is detected and the frame interpolation signal being passed when motion is not detected. A temporally filtered frame interpolation signal may be produced from the output and input of the frame delay circuit, and the mix signal in response to a temporal filter coefficient input to the absolute value/lookup table mixes the temporally filtered frame and frame interpolated signals to produce a final frame interpolated signal that in turn is mixed with the field interpolated signal to produce the output signal.
摘要翻译：运动检测器和改进的键信号内插器，其使用相同的输入将视频信号输入到帧和基于场的内插器以产生帧和场内插信号。帧和场插值信号被输入到混频器。帧内插信号也被输入到帧延迟电路，其输出从输入中减去以产生运动信号。运动信号由绝对值/查找表转换成也输入混频器的混合信号。混合信号确定输入处的哪个内插信号被传递到输出，当检测到运动时，场内插信号被传递，并且当没有检测到运动时传递帧内插信号。可以从帧延迟电路的输出和输入产生时间滤波的帧内插信号，并且响应于输入到绝对值/查找表的时间滤波器系数的混合信号混合时间滤波的帧和帧内插信号以产生最终帧内插信号又与场内插信号混合以产生输出信号。

2. 发明授权

US5386242A Self keyer with background gap fill 失效
标题翻译：带背景差距填充的自锁键
公开(公告)号：US5386242A
公开(公告)日：1995-01-31
申请号：US209764
申请日：1994-03-14
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/265 , H04N5/275
CPC分类号： H04N5/275
摘要： A self keyer with background gap fill adds background video to the gap between the background video and a fill video resulting from self key error. The self keyer performs the general function:Composite=Fill*f(Key)+Background*(1-f(Key)*(Key))where f(Key) is a programmable transfer function used to generate a multiplication factor, f(Key), for shaping or reshaping the fill video and to generate a hole cutting signal, f(Key)*(Key), for shaping the background video. The shaped foreground and background videos are combined to generate a composite video. The transfer function may be generated and stored in a PROM/RAM buffer as a lookup table by a CPU. The transfer function may also be generated interactively by adjusting various points on the transfer function individually, with the CPU storing the resulting transfer function in the PROM/RAM buffer.
摘要翻译：具有背景间隙填充的自签名者将背景视频添加到背景视频与由自身密钥错误导致的填充视频之间的差距。自我键执行一般功能：Composite = Fill * f（Key）+ Background *（1-f（Key）*（Key））其中f（Key）是用于生成乘数的可编程传递函数，f Key），用于对填充视频进行整形或重新整形，并生成孔切割信号f（Key）*（Key），用于形成背景视频。整形的前景和背景视频被组合以产生复合视频。传递函数可以由CPU生成并存储在作为查找表的PROM / RAM缓冲器中。传递函数也可以通过单独调整传递函数上的各个点来交互地产生，CPU将所产生的传递函数存储在PROM / RAM缓冲器中。

3. 发明授权

US5157494A Apparatus and method for combining video signals to provide an output signal with full field coverage 失效
标题翻译：用于组合视频信号以提供具有全场覆盖的输出信号的装置和方法
公开(公告)号：US5157494A
公开(公告)日：1992-10-20
申请号：US677080
申请日：1991-03-29
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/265
CPC分类号： H04N5/265
摘要： Apparatus for combining video signals comprises first and second static effect channels for generating first and second full-field video signals respectively. A transition control signal generator generates first and second transition control signals each having a full-field domain and a predetermined range, the sum of the first and second control signals nowhere exceeding the predetermined range. Arithmetic circuitry multiplies the first video signal by the first transition control signal to generate a first addend signal, multiplies the second full-field video signal by the second transition control signal to generate a second addend signal, and sums the first and second addend signals to provide an output video signal.

4. 发明授权

US4908699A Component video accumulation effect 失效
标题翻译：分量视频累积效应
公开(公告)号：US4908699A
公开(公告)日：1990-03-13
申请号：US299290
申请日：1989-01-23
申请人： Daniel J. Chaplin , Paul M. Trethewey , Christopher R. Hansen , R. Barry Angell
发明人： Daniel J. Chaplin , Paul M. Trethewey , Christopher R. Hansen , R. Barry Angell
IPC分类号： H04N9/75 , H04N9/76
CPC分类号： H04N9/76
摘要： A method for accumulating component video signals non-additively adds the luminance components to produce an accumulated luminance component, and additively adds the chrominance components to produce an accumulated chrominance component. The accumulated chrominance component may be clipped to limit chrominance values in an overlap area to legal color values. The intentional overlap of the component video signals produces an accumulation special effect in the overlap area.
摘要翻译：积分分量视频信号的方法是非加性地加上亮度分量以产生累积的亮度分量，并且相加地增加色度分量以产生累积的色度分量。累积的色度分量可以被限制以将重叠区域中的色度值限制为合法的颜色值。分量视频信号的有意重叠在重叠区域产生积累特殊效果。

5. 发明授权

US5400081A Chroma keyer with correction for background defects 失效
标题翻译：色度键控具有校正背景缺陷
公开(公告)号：US5400081A
公开(公告)日：1995-03-21
申请号：US196737
申请日：1994-02-15
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/272 , H04N9/75
CPC分类号： H04N9/75
摘要： A chroma keyer with correction for background defects generates a control signal that does not include variations associated with the background defects. The chroma magnitude of a reference signal that represents a chroma key set with a color background scene without a foreground object is used as a divisor for a hue select signal generated by a hue selector from a chrominance component of an input signal that represents the chroma key set with the foreground object to produce a chroma key control signal. The chroma key control signal is combined with the reference signal to produce a control signal for background suppression. The chroma key control signal also is input to a key circuit to produce a key signal for shaping a new background scene. The reference signal also may be combined with a uniform color signal from a reference matte generator to produce an error signal that is combined with the chroma key control signal to produce the control signal for correction of the background defects in the input signal.
摘要翻译：具有背景缺陷校正的色度键控器产生不包括与背景缺陷相关的变化的控制信号。使用表示具有没有前景对象的彩色背景场景的色度键的参考信号的色度幅度作为由色调选择器从表示色度键的输入信号的色度分量产生的色相选择信号的除数与前景对象设置以产生色度键控制信号。色度键控制信号与参考信号组合，产生用于背景抑制的控制信号。色度键控制信号也被输入到键电路以产生用于整形新背景场景的键信号。参考信号还可以与来自参考消光发生器的均匀颜色信号组合以产生与色度键控制信号组合的误差信号，以产生用于校正输入信号中的背景缺陷的控制信号。

6. 发明授权

US4967277A Non-linear keyer 失效
标题翻译：非线性键控
公开(公告)号：US4967277A
公开(公告)日：1990-10-30
申请号：US418354
申请日：1989-10-06
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/272 , H04N5/275 , H04N9/75
CPC分类号： H04N5/275
摘要： A non-linear keyer breaks a key processor transfer function into two pieces, one above and one below a clip level. Each piece may be modified independently and then recombined to produce the desired non-linear transfer function.

7. 发明授权

US4920415A Self keyer 失效
标题翻译：自我关键
公开(公告)号：US4920415A
公开(公告)日：1990-04-24
申请号：US325844
申请日：1989-03-20
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/275 , H04N5/262
CPC分类号： H04N5/2622
摘要： An improved self keyer preconditions a fill video prior to mixing with a background video under control of a self key signal derived from the fill video. A variable gray luminance signal is substituted for low luminance portions of the fill video under control of a precondition key signal derived from the self key signal to produce the preconditioned fill video. The resulting output video has a smooth luminance transition between the fill and background videos in lieu of an unpleasant black artifact at the edges of the fill video.

8. 发明授权

US5146333A Self keyer with pre-emphasized fill video 失效
标题翻译：自动键盘与预先放映的视频
公开(公告)号：US5146333A
公开(公告)日：1992-09-08
申请号：US418353
申请日：1989-10-06
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/275 , H04N9/74
CPC分类号： H04N5/275
摘要： An improved self keyer generates a pre-emphasized fill video signal that compensates for the multiplication of the fill video signal with a self key signal derived from the fill video signal, i.e., reduces the black content at the transition. The fill video signal is multiplied by twice the complement of the self key signal and then added to the fill video signal to produce the pre-emphasized fill video signal. The pre-emphasized fill video signal is then combined with a background video signal under control of the self key signal.
摘要翻译：改进的自锁键器产生预先加重的填充视频信号，其补偿由填充视频信号导出的自身键信号的填充视频信号的乘法，即减少转换时的黑色内容。填充视频信号乘以自锁信号的补码的两倍，然后加到填充视频信号以产生预先加注的填充视频信号。然后，在自锁信号的控制下，将预先强调的填充视频信号与背景视频信号组合。

9. 发明授权

US4887159A Shadow visual effects wipe generator 失效
标题翻译：阴影视觉效果擦发电机
公开(公告)号：US4887159A
公开(公告)日：1989-12-12
申请号：US323057
申请日：1989-03-14
申请人： Daniel J. Chaplin
发明人： Daniel J. Chaplin
IPC分类号： H04N5/262
CPC分类号： H04N5/2622
摘要： Video effects apparatus comprises a pattern generator for generating a mix control signal which, when used to control the combination of first and second input video signals to provide an output video signal, defines the geometrical shape in a composite output scene of a transition between a first component scene represented by the first input video signal and a second component scene represented by the second video signal. The pattern generator responds to a size control signal by causing the mix control signal to vary in a manner such that the area of the composite output video scene that is occupied by the first component scene changes relative to the area of the second component scene while the geometrical shape of the transition between the component scenes remains the same. A shadow generator generates a signal which adjusts the visual characteristics of the second component scene synchronously with the variation of the control signal.
摘要翻译：视频效果装置包括用于产生混合控制信号的模式发生器，当混合控制信号用于控制第一和第二输入视频信号的组合以提供输出视频信号时，在第一和第二输入视频信号之间的转换的复合输出场景中定义几何形状由第一输入视频信号表示的分量场景和由第二视频信号表示的第二分量场景。模式发生器通过使混合控制信号以使得由第一分量场景占据的复合输出视频场景的面积相对于第二分量场景的面积而变化的方式来响应于尺寸控制信号，而组件场景之间的转换的几何形状保持不变。阴影发生器产生与控制信号的变化同步地调整第二分量场景的视觉特性的信号。

10. 发明授权

US5627951A Graphical display of chroma keyer controls 失效
标题翻译：色度键控器的图形显示
公开(公告)号：US5627951A
公开(公告)日：1997-05-06
申请号：US395233
申请日：1995-02-27
申请人： Daniel J. Chaplin , Paul M. Trethewey , Paul S. Miller
发明人： Daniel J. Chaplin , Paul M. Trethewey , Paul S. Miller
IPC分类号： G06T11/00
CPC分类号： G06T11/001
摘要： A graphic display for chroma keyer controls presents background hue as a radial spoke of an outer chroma vector circle, with selectivity being displayed as a wedge about the radial spoke. Foreground suppression may be added to the graphic display by providing a concentric inner chroma vector circle with the foreground suppression hue being a radial spoke of the inner circle and foreground selectivity being a wedge within the inner circle about such radial spoke. That portion of the outer circle that is overlapped by the inner circle is suppressed, or rendered invisible, so that the background chroma information appears as a torus about the inner chroma vector circle.
摘要翻译：色度键控器的图形显示器将背景色调呈现为外部色度矢量圆的径向辐条，其选择性以围绕径向辐条的楔形显示。前景抑制可以通过提供同心的内部色度矢量圆添加到图形显示器中，前景抑制色调是内圆的径向辐条，前景选择性是围绕这种径向辐条的内圆内的楔形物。被内圈重叠的外圆的部分被抑制或不可见，使得背景色度信息作为关于内部色度矢量圆的圆环表现出来。

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