公开(公告)号：US5929934A

公开(公告)日：1999-07-27

申请号：US933580

申请日：1997-09-19

申请人： Chikatomo Nakasaka ,  Tsutomu Takamori

发明人： Chikatomo Nakasaka ,  Tsutomu Takamori

IPC分类号： H04N5/262 ,  H04N5/275 ,  H04N9/74

CPC分类号： H04N5/275 ,  H04N5/2622

摘要： A key signal processing apparatus for video signal processing including a signal delay circuit for successively delaying by 1 clock units a key input signal, used for applying a special effect to a video signal, and outputting the delayed key signal; a signal selection circuit for receiving the key input signal and a plurality of delayed key signals output from the signal delay circuit and selecting based on a selection control signal two pairs of signals in predetermined relationships of delay; a first signal interpolation circuit for performing signal interpolation on the first pair output from the signal selection circuit using a first coefficient; a second signal interpolation circuit for performing signal interpolation on the second pair output from the signal selection circuit using a second coefficient; and a signal synthesization circuit for combining a signal from the output of the first signal interpolation circuit and the output of the second signal interpolation circuit and outputting it as a key signal for video signal processing.

摘要翻译： 一种用于视频信号处理的键信号处理装置，包括：信号延迟电路，用于连续延迟1个时钟单位的一个用于对视频信号施加特殊效果的键输入信号，并输出延迟的键信号; 信号选择电路，用于接收从所述信号延迟电路输出的所述键输入信号和多个延迟的键信号，并且基于所述选择控制信号，以预定延迟关系的两对信号进行选择; 第一信号插值电路，用于使用第一系数从所述信号选择电路输出的所述第一对上执行信号插值; 第二信号插值电路，用于使用第二系数从所述信号选择电路输出的所述第二对上执行信号插值; 以及信号合成电路，用于组合来自第一信号内插电路的输出的信号和第二信号内插电路的输出，并将其作为用于视频信号处理的键信号输出。

公开(公告)号：US5850267A

公开(公告)日：1998-12-15

申请号：US29343

申请日：1993-03-10

申请人： John Abt ,  James A. Delwiche

发明人： John Abt ,  James A. Delwiche

IPC分类号： H04N5/272 ,  H04N5/275 ,  H04N9/74 ,  H04N9/76 ,  H04N5/262

CPC分类号： H04N5/275 ,  H04N5/272 ,  H04N9/76

摘要： To provide an improved non-additive mixer, a first mixer mixes first and second video signals according to a mixer control signal derived in a new way. The first and second video signals are applied, respectively, to first and second chrominance (blocking) filters. The resulting first and second luminance signals are applied, respectively, to first and second summing circuits, where offsets may be applied to either or both of them. The difference is then taken between the first offset luminance signal and the second offset luminance signal to produce a difference luminance signal. The difference luminance signal is then multiplied by a gain control signal to produce the mixer control signal. The mixer control signal can also be used to control a second mixer, thereby providing a channel for keying information that is non-additively mixed according to the luminance content of the video signal that the key information is associated with.

摘要翻译： 为了提供改进的非加法混合器，第一混频器根据以新的方式导出的混频器控制信号混合第一和第二视频信号。 第一和第二视频信号分别应用于第一和第二色度（阻塞）滤波器。 所得到的第一和第二亮度信号分别被施加到第一和第二求和电路，其中偏移可以被施加到它们中的一个或两者。 然后在第一偏移亮度信号和第二偏移亮度信号之间取差，以产生差分亮度信号。 然后将差分亮度信号乘以增益控制信号以产生混频器控制信号。 混合器控制信号也可用于控制第二混频器，从而根据密钥信息相关联的视频信号的亮度内容提供用于非信息混合信息的信道。

公开(公告)号：US5822016A

公开(公告)日：1998-10-13

申请号：US932481

申请日：1997-09-18

申请人： Chikatomo Nakasaka ,  Tsutomu Takamori

发明人： Chikatomo Nakasaka ,  Tsutomu Takamori

IPC分类号： H04N5/262 ,  H04N5/275 ,  H04N9/74

CPC分类号： H04N5/275 ,  H04N5/2622

摘要： A key signal processing apparatus for video signal processing including a signal delay circuit for successively delaying by 1 clock units a key input signal, used for applying a special effect to a video signal, and outputting the delayed key signal; a signal selection circuit for receiving the key input signal and a plurality of delayed key signals output from the signal delay circuit and selecting based on a selection control signal two pairs of signals in predetermined relationships of delay; a first signal interpolation circuit for performing signal interpolation on the first pair output from the signal selection circuit using a first coefficient; a second signal interpolation circuit for performing signal interpolation on the second pair output from the signal selection circuit using a second coefficient; and a signal synthesization circuit for combining a signal from the output of the first signal interpolation circuit and the output of the second signal interpolation circuit and outputting it as a key signal for video signal processing.

公开(公告)号：US5577174A

公开(公告)日：1996-11-19

申请号：US854387

申请日：1992-03-19

申请人： Katsuakira Moriwake

发明人： Katsuakira Moriwake

IPC分类号： G09G5/36 ,  G06T3/00 ,  G09G5/42 ,  H04N5/262 ,  H04N5/265 ,  H04N5/275 ,  H04N9/74

CPC分类号： H04N5/275 ,  H04N5/2622

摘要： Method and apparatus for generating a composite three-dimensional video image data signal from first and second three-dimensional image data signals, in which the first three-dimensional image data signal is comprised of a first video data signal and a first depth data signal and the second three-dimensional image data signal is comprised of a second video data signal and a second depth data signal. The difference between the first and second depth data signals is calculated so as to form a difference signal from which a signal representing the sign of the difference signal is generated. Average values are obtained, at a rate corresponding to a pixel processing rate, between the sign signal and the rate of change of the difference between the first depth data signal and the second depth data signal, in which the rate of change is calculated when the sign signal has a predetermined value. The first and second three-dimensional image data signals are combined in accordance with a key data signal which is selected from one of the average values and the sign signal.

摘要翻译： 用于从第一和第二三维图像数据信号产生复合三维视频图像数据信号的方法和装置，其中第一三维图像数据信号由第一视频数据信号和第一深度数据信号组成， 第二三维图像数据信号由第二视频数据信号和第二深度数据信号组成。 计算第一深度数据信号和第二深度数据信号之间的差异，以形成差分信号，产生表示差分信号的符号的信号。 在符号信号和第一深度数据信号与第二深度数据信号之间的差异的变化率之间获得以对应于像素处理速率的速率获得的平均值，其中当计算变化率时 符号信号具有预定值。 第一和第二三维图像数据信号根据从平均值和符号信号之一中选择的键数据信号进行组合。

公开(公告)号：US5534924A

公开(公告)日：1996-07-09

申请号：US165574

申请日：1993-12-13

申请人： Olivier Florant

发明人： Olivier Florant

IPC分类号： H04N5/262 ,  H04N5/272 ,  H04N5/275 ,  H04N5/238

CPC分类号： H04N5/275 ,  H04N5/272

摘要： A method and an apparatus is disclosed for extracting from a single shot, two pictures of an illuminated scene having a foreground zone and a background zone respectively. The first picture has a depth of field which is greater than the second picture. Subsequently the high frequency components are extracted from each of the pictures in order to reflect characteristics of each of the pictures which have the greatest amount of contrast or sharpness. The two high frequency signals are compared in order to obtain a depth of field signal based upon the differences between the two signals.

摘要翻译： 公开了一种用于从单次拍摄分别具有前景区域和背景区域的照明场景的两张照片的方法和装置。 第一画面具有大于第二画面的景深。 随后，从每个图像中提取高频分量，以便反映具有最大对比度或锐度的每个图像的特征。 比较两个高频信号，以便根据两个信号之间的差异来获得景深信号。

公开(公告)号：US5027213A

公开(公告)日：1991-06-25

申请号：US453400

申请日：1989-12-19

申请人： Gerhard Kamin

发明人： Gerhard Kamin

IPC分类号： H04N5/275

CPC分类号： H04N5/275

摘要： In a video mixer each input video signal is modified by only a single multiplier before its contribution is added to the contributions of other input video signals to produce the output video signal. The sums of the contributions of the video signals which participate at any time in the output signal corresponds to a predetermined value for the overall amplitude range. The mixing factor signals supplied to each of the mixers which are in line with the inputs are generated by two priority cascades of subtracters, multipliers and adders, each of which provides for the composition of an output picture, up to six video input signals and a switching system permits allocating priorities between the inputs in any desired way on a permanent or variable basis. The two separate cascades of control signals are connectable through the in line multipliers in such a way that a composite output picture made up of up to 6 input video signals can be faded over to another composite input signal likewise made up of up to 6 or more input video signals, not all of which need to be different on both sides of the fade. One cascade can be used to prepare the next composite picture and additional switching make possible the preview of the next composite picture on a preview monitor before that next picture is faded in.

摘要翻译： 在视频混合器中，每个输入视频信号仅在单个乘法器之前被修改，然后将其贡献加到其它输入视频信号的贡献以产生输出视频信号。 在任何时候参与输出信号的视频信号的贡献的总和对应于整个幅度范围的预定值。 提供给与输入一致的每个混频器的混合因子信号由减法器，乘法器和加法器的两个优先级联产生，每个级联提供输出图像的组合，多达六个视频输入信号和 交换系统允许以任何期望的方式在永久或可变的基础上在输入之间分配优先级。 控制信号的两个单独的级联可以通过在线乘法器连接，使得由多达6个输入视频信号组成的复合输出图像可以衰减到同样由多达6个或更多个的另外的复合输入信号 输入视频信号，并不是所有这些都需要在两侧都有所不同。 可以使用一个级联来准备下一张复合图片，并且附加切换可以在下一张照片淡入之前在预览监视器上预览下一张复合图片。

公开(公告)号：US4991014A

公开(公告)日：1991-02-05

申请号：US159240

申请日：1988-02-19

申请人： Hiroshi Takahashi ,  Takayuki Iijima

发明人： Hiroshi Takahashi ,  Takayuki Iijima

IPC分类号： H04N5/275

CPC分类号： H04N5/275

摘要： First and second memories are provided for receiving key signals which control a display to output a video composition made up of a plurality of video signals. The key signals are received from a key signal generator in synchronism with the speed of the key signal generator. The first memory receives a key signal directly, while the second memory receives a gated key signal for storing a key signal related to, for example, a still image, and the gating is controlled so that the key signal in the second memory is only overwritten when it is expressly intended to do so. A read address generator controls the reading out of key signals from both memories, in synchronism with the speed of the display apparatus which displays the video images. A further gate may be provided to control input of key signals into the first memory, this further gate being controlled by the state of the output key signal coming from the second memory. Another aspect of the invention relates to a system comprising a plurality of first memories for receiving, storing, and outputting a plurality of key signals, respectively. A selector is provided for selecting one of the plurality of output key signals, and the selected key signal is received and stored in a second memory and outputted as a second output key signal. A priority order setting system selects and outputs the first output key signals from the first memory and the second output key signal from the second memory according to a first priority order. A second priority order setting system may select and output the first output key signals according to a second priority order.

摘要翻译： 提供第一和第二存储器用于接收控制显示器以输出由多个视频信号组成的视频构图的键控信号。 与键信号发生器的速度同步地从键信号发生器接收关键信号。 第一存储器直接接收密钥信号，而第二存储器接收用于存储与例如静止图像相关的密钥信号的门控密钥信号，并且门控被控制，使得第二存储器中的密钥信号仅被覆盖 当它明确打算这样做。 读取地址生成器与显示视频图像的显示装置的速度同步地控制从两个存储器读出键信号。 可以提供另一个门来控制键信号到第一存储器的输入，该另外的门由来自第二存储器的输出键信号的状态控制。 本发明的另一方面涉及一种包括分别用于接收，存储和输出多个键信号的多个第一存储器的系统。 提供选择器用于选择多个输出键信号之一，并且所选择的键信号被接收并存储在第二存储器中并作为第二输出键信号输出。 优先顺序设置系统根据第一优先顺序从第二存储器中选择并输出来自第一存储器的第一输出键信号和第二输出键信号。 第二优先顺序设置系统可以根据第二优先顺序选择并输出第一输出键信号。

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.

公开(公告)号：US4875097A

公开(公告)日：1989-10-17

申请号：US203575

申请日：1988-05-26

申请人： Richard A. Jackson

发明人： Richard A. Jackson

IPC分类号： H04N5/275

CPC分类号： H04N5/275

摘要： A video signal representing a scene is processed by combining it with a second signal having a value which depends on the depth of the scene as a function of position.

摘要翻译： 表示场景的视频信号通过将其与具有取决于作为位置的函数的场景的深度的值的第二信号组合来处理。

公开(公告)号：US4356512A

公开(公告)日：1982-10-26

申请号：US137867

申请日：1980-04-07

申请人： Klaas H. J. Robers

发明人： Klaas H. J. Robers

IPC分类号： H04N5/272 ,  H04N5/275 ,  H04N9/75 ,  H04N5/22

CPC分类号： H04N9/75 ,  H04N5/275

摘要： A keying circuit for television, in the form of a special effect generator or a chroma-keying circuit. In order to generate a keying signal which does not cause flicker phenomena in an interlaced television picture when there is a great contrast in the region of a signal switch-over between two video signals in response to the keying signal, the circuit comprises a signal delay circuit and a signal combining circuit for the binary keying signal which occurs undelayed and delayed. The signal delay device has delay times of a field period minus and plus one line period or of one and two line periods, respectively. This results in a gradually changing keying signal there, where the flicker phenomenon in the interlaced television picture might occur.

摘要翻译： 用于电视的键控电路，以特效发生器或色键控制电路的形式。 为了产生在隔行扫描电视图像中不产生闪烁现象的键控信号，当在两个视频信号之间的信号切换区域中响应于键控信号存在很大的对比度时，该电路包括信号延迟 电路和用于二进制键控信号的信号组合电路，其发生不延迟和延迟。 信号延迟装置具有场周期的延迟时间减去和加一行周期或一和两行周期。 这导致在那里逐渐变化的键控信号，其中交错电视图像中的闪烁现象可能发生。