公开(公告)号：US5708479A

公开(公告)日：1998-01-13

申请号：US661000

申请日：1996-06-10

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N9/75

CPC classification number: H04N9/75

Abstract: In a method of inserting a background picture signal into key color-characterized parts of a foreground picture signal, the selectivity, i.e., the boundary between its foreground colors and the transition or mixed colors degenerated by the key color should be changeable within a frame period by means of masking. This provides the possibility of differently keying equal colors of different origin occurring in a picture--as a pure foreground color, on the one hand, and as a mixed color, on the other hand--namely, by dynamically switching the selectivity within a frame period by means of the chroma angle .alpha..sub.c.

Abstract translation: 在将背景图像信号插入到前景图像信号的关键颜色特征部分中的方法中，选择性，即它的前景颜色与由键颜色退化的转换或混合颜色之间的边界应当在一个帧周期内变化 通过掩蔽。 另一方面，这提供了在图像中发生的不同原色的相同颜色不同地键入作为纯前景色的可能性，另一方面，作为混合色，即通过在帧周期内动态地切换选择性 通过色度角αc。

公开(公告)号：US5301016A

公开(公告)日：1994-04-05

申请号：US987894

申请日：1992-12-04

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N5/272 ,  H04N9/75

CPC classification number: H04N9/75

Abstract: In a method, in which a control signal assumes a first value when the foreground signal represents a color in the region of the key color and a second value when the foreground signal represents a different color, and in which the control signal has a transition range between the two values, the distances between the color locations of the pixels of the foreground signal and the color location of the key color are computed for distinguishing color locations associated with foreground objects or with the key color from color locations to be associated with the transition range. Those color locations whose distance is distinguished from color locations of one or a plurality of adjacent pixels by more than a predetermined distance (not complying with a homogeneity criterion) are considered to be associated with the transition range. Intermediate values of the control signal are computed for the color locations in the transition range.

Abstract translation: 在一种方法中，当前景信号表示键颜色的区域中的颜色时，控制信号呈现第一值，而当前景信号表示不同的颜色时，控制信号呈现第二值，并且其中控制信号具有转变范围 在两个值之间，计算前景信号的像素的颜色位置和键颜色的颜色位置之间的距离，用于区分与前景对象相关联的颜色位置或与颜色位置的关键颜色相关联的转换 范围。 将距离与一个或多个相邻像素的颜色位置区分大于预定距离（不符合均匀性标准）的那些颜色位置被认为与过渡范围相关联。 针对过渡范围内的颜色位置计算控制信号的中间值。

公开(公告)号：US4547711A

公开(公告)日：1985-10-15

申请号：US609735

申请日：1984-05-14

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N3/16 ,  H03K4/69 ,  H01J29/70 ,  H01J29/76

CPC classification number: H03K4/696

Abstract: A first regulating amplifier (7) provides a linearly increasing current to the horizontal deflection coil during the forward trace sweep and the amplifier is disconnected from the deflection coil and its parallel capacitor (2) during the retrace period to provide flyback by free reaction of the oscillating circuit. In order to shorten the retrace period an auxiliary coil (17) is energized with a regulated current during the forward trace sweep with the help of a second regulating amplifier (8) gated on during a preliminary portion of the line interval and a controllable voltage source (14) set thereby. During a first portion of the retrace interval currents flowing respectively in the auxiliary coil and in the horizontal deflection coil are stored in the capacitor (2), which discharges during the remainder of the retrace period only through the deflection coil.

Abstract translation: 第一调节放大器（7）在正向扫描期间向水平偏转线圈提供线性增加的电流，并且在回扫期间放大器与偏转线圈及其并联电容器（2）断开，以通过自由反应提供回扫 振荡电路。 为了缩短回扫周期，借助于在行间隔的预备部分期间门控的第二调节放大器（8），在正向扫描扫描期间，辅助线圈（17）被激励，并且可控电压源 （14）。 在回扫间隔的第一部分期间，分别在辅助线圈和水平偏转线圈中流动的电流被存储在电容器（2）中，电容器（2）仅在回扫周期的剩余时间期间才通过偏转线圈放电。

公开(公告)号：US5436671A

公开(公告)日：1995-07-25

申请号：US190430

申请日：1994-02-02

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N9/75 ,  G06T11/60 ,  H04N9/76

CPC classification number: H04N9/76

Abstract: In a method of separating a foreground picture signal FG from a mixed picture signal MG having a key color KC and transition colors to this key color in key regions, the components of the key color and the transition colors are vectorially subtracted from the mixed picture signal in dependence upon a control signal k which, with a continuous variation, assumes values of between 1 in the region of the key color KC and O at mixed boundaries. Color errors due to a gamma pre-correction are obviated in that the vectorial subtraction is performed in accordance with the equation FG=MG-k*KC(f), in which KC(f) is chosen in dependence upon the color intensity as far as its angle in the C.sub.b /C.sub.r color plane is concerned.

Abstract translation: 在将前景图像信号FG与具有键颜色KC的混合图像信号MG和键区域中的该颜色的过渡颜色分离的方法中，从混合图像信号向量地减去键颜色和过渡颜色的分量 依赖于控制信号k，其具有连续变化，在混合边界处的键颜色KC和O的区域中假定值为1。 消除由于伽马预校正引起的颜色误差，因为根据等式FG = MG-k * KC（f）执行矢量减法，其中KC（f）根据颜色强度被选择为远 作为其在Cb / Cr色平面中的角度。

公开(公告)号：US5382980A

公开(公告)日：1995-01-17

申请号：US197034

申请日：1994-02-16

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N9/75 ,  H04N9/74

CPC classification number: H04N9/75

Abstract: A method of inserting a background signal (BG) into parts of a foreground signal (FG), which parts are fixed by a predetermined key color (KC), in which method a control signal (k) is derived from the foreground signal (FG), which control signal assumes a first value when the foreground signal (FG) represents a color in the region of the key color (KC) and a second value when the foreground signal (FG) represents a different color, in which the control signal (k) has a transition range between the two values, and in which a difference, influenced by the control signal (k), between the vector of the background signal (BG) and the vector of a signal (KC) representing the key color is vectorially added to the foreground signal (FG) in accordance with Patent (U.S. patent application Ser. No. P 41 43 180.4), as well as an arrangement for performing this method. A further improvement of the picture quality while using a small number of components is achieved in that the background signal (BG), the signal (KC) representing the key color and the foreground signal (FG) each comprise a component representing the blue component (Cb) and the red component (Cr) as well as a luminance component (Y) and, as regards all their components, the signals are combined in the corresponding, afore-mentioned manner.

Abstract translation: 将背景信号（BG）插入到前景信号（FG）的部分中的方法，所述前景信号（FG）的哪些部分由预定的键颜色（KC）固定，其中控制信号（k）从前景信号 ），当前景信号（FG）表示键颜色（KC）的区域中的颜色时，该控制信号呈现第一值，当前景信号（FG）表示不同的颜色时，该控制信号呈现第一值，其中控制信号 （k）具有两个值之间的转变范围，并且其中受背景信号（BG）的矢量和表示键颜色的信号（KC）的矢量之间的受控制信号（k）的影响的差异 根据专利（美国专利申请号P 41 43 180.4）向前景信号（FG）中矢量地添加，以及用于执行该方法的装置。 实现了使用少量组件时图像质量的进一步改善，因为背景信号（BG），表示按键颜色的信号（KC）和前景信号（FG）各自包括表示蓝色分量的分量 Cb）和红色分量（Cr）以及亮度分量（Y），并且关于它们的所有分量，信号以相应的上述方式组合。

公开(公告)号：US4739408A

公开(公告)日：1988-04-19

申请号：US937878

申请日：1986-12-04

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H01J9/44 ,  H04N5/228

CPC classification number: H04N5/228

Abstract: The signal electrode of a television camera tube by first scanning in an odd-numbered picture field is focussed in horizontal scanning pattern and then superimposing thereon in an even-numbered picture field the scanning pattern offset out of interlace and rotated slightly while at the same time the focussing current for the focussing coil of the electron beam is slightly altered for the even-numbered picture field. Charge patterns with charge maxima are thereby produced in the unscanned zones. The actual alignment is determined by the focus pivot point F that lies in a strip of maximum charge values running obliquely across the scanning pattern. Increasing the focussing current produces, simultaneously, rotation to the left and enlargement of the scanning pattern, resulting in a maximum charge value strip running from upper left to lower right (patterns a, c and e). The reduction of the focussing current, on the other hand, produces rotation to the right and reduction of the scanning pattern size, which last is overcompensated by a supplemental vertical deflection magnitude correction to produce the same size pattern as the pattern rotated to the left when the focussing current was stronger. In this last case, the maximum charge strip runs from upper right to lower left and, as in the previous case, passes through the focus pivot point F. From the location of the point F an alignment correction value is produced and stored and used to correct the current in the alignment coils and the procedure is repeated until the desired alignment (pattens e and f) is obtained.

Abstract translation: 电视摄像机管的信号电极通过在奇数编号的图像场中进行第一扫描而被聚焦在水平扫描图案中，然后叠加在偶数图像场中，扫描图案偏离隔行扫描并同时略微旋转 电子束的聚焦线圈的聚焦电流对偶数图像场稍微改变。 因此，在未扫描区域中产生带电荷最大值的电荷模式。 实际对准由位于沿扫描图案倾斜运行的最大电荷值的条带中的焦点枢转点F确定。 增加聚焦电流同时产生向左旋转和放大扫描图案，导致最大电荷值条从左上到右下（图案a，c和e）。 另一方面，聚焦电流的减小产生向右的旋转和扫描图案尺寸的减小，其最后被补充的垂直偏转幅度校正过度补偿，以产生与向左旋转的图案相同的尺寸图案 聚焦电流更强。 在最后一种情况下，最大充电带从右上方延伸到左下方，并且与先前情况相同，通过聚焦枢轴点F.从点F的位置产生并存储对准校正值并将其用于 校正对准线圈中的电流，并重复该过程，直到获得所需的对准（图案e和f）。

公开(公告)号：US5644365A

公开(公告)日：1997-07-01

申请号：US527739

申请日：1995-09-13

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N5/272 ,  H04N5/275 ,  H04N9/75 ,  H04N9/74

CPC classification number: H04N9/75 ,  H04N5/275

Abstract: A method and a circuit for generating a composite video signal formed from a foreground signal and a background signal in accordance with the luminance self-key mode is described, in which the key signal is derived from the luminance foreground signal in dependence upon a clipping level. To avoid a quadratic dependence of the luminance signal during product formation of the key signal with the foreground signal (referred to as "double multiplication"), the linear key signal should be replaced by a control signal which is hyperbolically formed in such a way that the unwanted quadratic dependence is eliminated.

Abstract translation: 描述了根据亮度自身模式产生由前景信号和背景信号形成的复合视频信号的方法和电路，其中根据削波电平从亮度前景信号导出键信号 。 为了避免在具有前景信号（称为“双倍乘法”）的产品形成期间亮度信号的二次依赖性，线性密钥信号应该被双螺旋形成的控制信号所代替，使得 消除了不需要的二次依赖。

公开(公告)号：US5444496A

公开(公告)日：1995-08-22

申请号：US190429

申请日：1994-02-02

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: G06T7/00 ,  H04N9/75

CPC classification number: H04N9/75

Abstract: In a method of separating a foreground picture signal FG from a mixed picture signal MG which has a key color KC as well as transition colors to this key color in key regions, the foreground picture signal is removed from the key color and the transition colors in accordance with the equationFG=MG-k*KC.Herein, k is a control signal which has a value of about 1 in the region of the key color KC and a value of about 0 at the transition boundaries. The transition boundaries in the C.sub.b /C.sub.r color plane are constituted by two straight lines through the origin of the C.sub.b /C.sub.r, color plane which, relative to a vector D.sub.KC of the key color extending from the origin of the C.sub.b /C.sub.r color plane to the color location KC of the key color, are arranged at angles .omega..sub.o and .omega..sub.u, respectively. The straight lines through the origin of the C.sub.b /C.sub.r, color plane are arranged automatically and optimally in that those pixels are filtered from the mixed picture signal whose color locations in the C.sub.b /C.sub.r color plane are spaced apart by a distance which is smaller than a predetermined distance from color locations of one or more pixels adjoining one another with respect to time or location, in that accumulations of the filtered pixels are determined and in that the angles .omega..sub.o and .omega..sub.u of the two straight lines through the origin of the C.sub.b /C.sub.r color plane are chosen to be such that the accumulations closest to the key color KC in the C.sub.b /C.sub.r, color plane are not located in the region between the key color KC and the transition boundaries constituted by the straight lines through the origin of the C.sub.b /C.sub.r color plane.

Abstract translation: 在将前景图像信号FG与具有键颜色KC的混合图像信号MG以及键区域中的该颜色的过渡颜色分离的方法中，前景图像信号从键颜色和过渡颜色中去除 根据方程FG = MG-k * KC。 这里，k是在键颜色KC的区域中具有大约1的值的控制信号，并且在转变边界处具有约0的值。 Cb / Cr颜色平面中的过渡边界由通过Cb / Cr，彩色平面的原点的两条直线构成，相对于从Cb / Cr颜色平面的原点延伸的键颜色的矢量DKC， 键颜色的颜色位置KC分别以角度ω和ωu排列。 通过Cb / Cr，彩色平面的原点的直线被自动和最佳地排列，这些像素被从混合图像信号中滤出，其混合图像信号的Cb / Cr色彩平面中的颜色位置被间隔开一个小于 确定了相对于时间或位置彼此相邻的一个或多个像素的颜色位置的预定距离，在滤波像素的累积中确定了两条直线穿过Cb原点的角度ω和ωu / Cr颜色平面被选择为使得最接近Cb / Cr色平面中的键颜色KC的积分不位于由键颜色KC和由通过原点的直线构成的过渡边界之间的区域中 Cb / Cr色平面。

公开(公告)号：US5381184A

公开(公告)日：1995-01-10

申请号：US986329

申请日：1992-12-07

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N5/272 ,  H04N9/75 ,  H04N9/74

CPC classification number: H04N9/75

Abstract: In a method of and an arrangement for inserting a background signal into parts of a foreground signal fixed by a predetermined key color, in which a control signal is derived from the foreground signal, this control signal assuming a first value when the foreground signal represents a color in the region of the key color and a second value when the foreground signal represents a different color, and in which the control signal has a transition range between the two values, a difference, influenced by the control signal, between the vector of the background signal and the vector of a signal representing the key color is vectorially added to the foreground signal.

Abstract translation: 在将背景信号插入到由前景信号导出控制信号的预定键颜色固定的前景信号的部分中的方法和装置中，当前景信号表示为 当前景信号表示不同的颜色时，控制信号具有两个值之间的转变范围，即受控制信号影响的差异，在该色彩的向量 背景信号和表示键颜色的信号的向量被矢量地加到前景信号上。

公开(公告)号：US4709192A

公开(公告)日：1987-11-24

申请号：US819512

申请日：1985-12-12

Applicant: Rainer Gehrmann

Inventor： Rainer Gehrmann

IPC: H04N5/228 ,  H01J29/56

CPC classification number: H04N5/228

Abstract: A process for avoiding non-linearities and brightening on the television picture tube includes the generating of an additional signal of a higher frequency than that of the deflections signals, the separating of the additional signal into signal parts of opposite polarity, and the addition of the two additional signal parts to the deflection signals during time intervals immediately before and after the return movement period.

Abstract translation: PCT No.PCT / DE85 / 00195 Sec。 371日期1985年12月12日第 102（e）日期1985年12月12日PCT Filed 1985年6月1日PCT公布。 公开号WO86 / 00187 日期：1986年1月3日。用于避免电视显像管上的非线性和增白的过程包括产生比偏转信号更高频率的附加信号，将附加信号分离成相反的信号部分 极性，以及在返回移动期间之前和之后的时间间隔期间将两个附加信号部分添加到偏转信号。