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公开(公告)号：EP1251692A3
公开(公告)日：2004-07-14
申请号：EP02252711.3
申请日：2002-04-17
申请人： Quantel Limited
摘要： A chroma keying system 1 processes foreground image data representing a foreground subject in front of a matte, together with background data representing a background image, to produce composite image data representing the foreground subject and the background in place of the matte. A programmable look up table 8 is provided for receiving on a pixel-by-pixel basis the most significant bits (MSBs) of the foreground image data and outputting in response thereto range data representing limits of a keying range. An interpolator 9 is also provided for interpolating the range data depending on the least significant bits (LSBs) of the foreground image data and outputting keying data. A combiner 4 combines the foreground image data and the background image data on a pixel-by-pixel basis in response to the keying data to produce the composite image data. The system is operable in a calibration mode in which a generator 15 is connected to input the colour point data to an external keyer. The generator 15 generates colour point data representing all possible colours that could be represented by the most significant bits of the foreground image data, causing the external keyer to output keying data. The look up table 8 is also connected to the external keyer in this mode so that it can receive and store the keying data for subsequent use in the processing of foreground image data together with background image data to produce composite image data.
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公开(公告)号：EP0677825B1
公开(公告)日：2001-08-08
申请号：EP95109380.6
申请日：1990-04-17
申请人： QUANTEL LIMITED
CPC分类号： G06T1/20 , G06F3/04845 , G06T11/00 , G06T11/001
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公开(公告)号：EP0606743A2
公开(公告)日：1994-07-20
申请号：EP93310102.4
申请日：1993-12-15
申请人： QUANTEL LIMITED
IPC分类号： G06F3/06
CPC分类号： H04N21/2182 , G06F3/0601 , G06F3/061 , G06F3/0655 , G06F3/0689 , G06F11/10 , G06F11/1076 , G06F2003/0692
摘要： A data storage apparatus 20 comprises several disc stores 21 to 24 connected to respective RAM buffers 37 to 40 by respective data interfaces and highways 25 to 36. Sets of data are stored in the disc stores with the data in each set being distributed among the disc stores. The apparatus comprises a controller 51 which, in response to an external request for data, generates control data identifying one or more sets of data to be transferred between the disc stores and the RAM buffers. The control data is transferred to the disc stores 21 to 24 via the respective data interfaces and highways 25 to 36. When data is ready for transfer a signal is sent from the interfaces 33 to 36 and once the controller has received signals from each of the interfaces it enables data to be transferred between the interfaces and respective RAM buffers. A data highway 49 is provided for connection to external apparatus for a substantially continuous sequential transfer of the data in the identified set or all of the identified sets. Data is transferred between the RAM buffers 37 to 40 and the data highway 49 under the control of the controller 51. The highway 49 may be provided with error checking circuitry 55 to 57.
摘要翻译： 数据存储装置20包括通过相应的数据接口和高速公路25至36连接到各个RAM缓冲器37至40的多个盘存储器21至24。数据集存储在盘存储中，每组中的数据分布在盘之间 商店。 该装置包括控制器51，响应于对数据的外部请求，产生标识在盘存储和RAM缓冲器之间要传送的一组或多组数据的控制数据。 控制数据经由相应的数据接口和高速公路25至36传送到光盘存储器21至24.当数据准备传送时，从接口33至36发送一个信号，一旦控制器从每个 接口使数据能够在接口和相应的RAM缓冲区之间传输。 提供数据公路49用于连接到外部设备，用于在所识别的集合或所有所识别的集合中的数据的基本上连续的顺序传送。 数据在控制器51的控制下在RAM缓冲器37至40和数据通路49之间传送。高速路49可以设置有错误检查电路55至57。
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4.发明公开
公开(公告)号：EP0403253A1
公开(公告)日：1990-12-19
申请号：EP90306442.6
申请日：1990-06-13
申请人： QUANTEL LIMITED
CPC分类号： G06T11/60
摘要： An electronic image composition system in which in a preview mode of operation an image or image portion is manipulated and displayed substantially in real-time. In a compositing mode the image is finally composed (or stuck) into a background image. During the previewing stage, only a selected number of pixels representing the image are transformed and the remainder are derived from said transformed pixels by filtering or, preferably, replication.
摘要翻译： 一种电子图像合成系统，其中在预览操作模式下，基本上实时地操纵和显示图像或图像部分。 在合成模式中，图像最终组成（或卡住）到背景图像中。 在预览阶段期间，只有代表图像的选定数量的像素被变换，并且通过滤波或优选地复制从所述变换的像素导出其余部分。
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公开(公告)号：EP0662688B1
公开(公告)日：2001-05-09
申请号：EP95300060.1
申请日：1995-01-06
申请人： QUANTEL LIMITED
发明人： Kellar, Paul Roderick Noel , Cawley, Robin Alexander , Searby, Anthony David , Hinson, Neil Roy
IPC分类号： G11B27/031 , H04N5/262 , H04N5/278
CPC分类号： H04N19/99 , G06T9/001 , G11B27/034 , G11B2220/41 , H04N5/262 , H04N5/278
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公开(公告)号：EP0677824A3
公开(公告)日：1996-02-28
申请号：EP95109368.1
申请日：1990-04-17
申请人： QUANTEL LIMITED
CPC分类号： G06T1/20 , G06F3/04845 , G06T11/00 , G06T11/001
摘要： An electronic graphic system for modifying image pixels includes a framestore 21 and a pipeline brush processor 22. Image pixels are read out of the framestore 21 in batches and applied to an input of the brush processor 22. Other data representing colour shape and pressure of a line drawn by a user on a touch tablet 17 by way of a stylus 18 is also input to the processor 22. As the pixels pass through the processor 22 they are modified by the other data. Batches of modified pixels are written back to the framestore 21. The reading and writing of pixels from the framestore 21 is interleaved with the reading of pixels for display as an image on a monitor 16. The system also includes an arrangement for interpolating stylus pressure to remove visible discontinuities or other changes in the drawn image resulting from significant changes in stylus pressure. An improved zoom facility enables a substantially continuously variable zoom factor to be defined thereby to avoid large changes in scale during a zooming operation. An arrangement for adjusting numerical values associated with some functions or features of the system allows the user to control the values solely by movement of the stylus over the touch tablet.
摘要翻译： 用于修改图像像素的电子图形系统包括帧存储器21和管线刷处理器22.图像像素被批量地从帧存储器21中读出并且被施加到画笔处理器22的输入端。其他表示图像像素的颜色形状和压力的数据 通过触控笔18由用户在触摸板17上绘制的线也被输入到处理器22.当像素通过处理器22时，它们被其他数据修改。 批量的修改后的像素被写回到帧存储器21中。来自帧存储器21的像素的读取和写入与像素的读取交错，以作为监视器16上的图像显示。系统还包括用于将触控笔压力内插到 去除由于触针压力的显着变化而导致的绘制图像中的可见不连续性或其他变化。 改进的变焦设备使得能够定义基本上连续可变的变焦因子，从而避免变焦操作期间的比例变化较大。 用于调整与系统的一些功能或特征相关联的数值的装置允许用户仅通过触控笔在触摸板上的移动来控制值。
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公开(公告)号：EP0677824A2
公开(公告)日：1995-10-18
申请号：EP95109368.1
申请日：1990-04-17
申请人： QUANTEL LIMITED
CPC分类号： G06T1/20 , G06F3/04845 , G06T11/00 , G06T11/001
摘要： An electronic graphic system for modifying image pixels includes a framestore 21 and a pipeline brush processor 22. Image pixels are read out of the framestore 21 in batches and applied to an input of the brush processor 22. Other data representing colour shape and pressure of a line drawn by a user on a touch tablet 17 by way of a stylus 18 is also input to the processor 22. As the pixels pass through the processor 22 they are modified by the other data. Batches of modified pixels are written back to the framestore 21. The reading and writing of pixels from the framestore 21 is interleaved with the reading of pixels for display as an image on a monitor 16.
The system also includes an arrangement for interpolating stylus pressure to remove visible discontinuities or other changes in the drawn image resulting from significant changes in stylus pressure.
An improved zoom facility enables a substantially continuously variable zoom factor to be defined thereby to avoid large changes in scale during a zooming operation.
An arrangement for adjusting numerical values associated with some functions or features of the system allows the user to control the values solely by movement of the stylus over the touch tablet.摘要翻译： 用于修改图像像素的电子图形系统包括帧存储器21和流水线画笔处理器22.图像像素分批地从帧存储器21中读出并应用于画笔处理器22的输入。表示彩色形状和压力的其他数据 用户通过触控笔18在触摸板17上绘制的线也被输入到处理器22.当像素通过处理器22时，它们被其他数据修改。 经修改的像素的批次被写回到帧存储器21.来自帧存储器21的像素的读取和写入与用于在监视器16上显示为图像的像素的读取交错。该系统还包括用于将触笔压力内插到 消除由触针压力的显着变化引起的绘制图像中的可见不连续性或其他变化。 改进的变焦设备使得能够定义基本上连续可变的缩放因子，从而避免在缩放操作期间尺度的大的变化。 用于调整与系统的一些功能或特征相关联的数值的布置允许用户仅通过触控笔在触摸平板电脑上的移动来控制值。
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公开(公告)号：EP0589724A2
公开(公告)日：1994-03-30
申请号：EP93307604.4
申请日：1993-09-24
申请人： QUANTEL LIMITED
IPC分类号： G06F15/62
CPC分类号： G06T1/60
摘要： An electronic image processing system 1 comprises a large capacity store 2 comprising a source area 3 for storing data representing an initial image and a destination area 4 for storing data representing a modified image. A control processor 5 calculates transformation parameters and controls the transfer of portions of the initial image data to a high speed low capacity cache store 9. A spatial filter 10 effects transformations on the data in the cache store 9 and the thus modified image portion data is written to the destination area 4.
摘要翻译： 电子图像处理系统1包括大容量存储器2，其包括用于存储表示初始图像的数据的源区域3和用于存储表示修改图像的数据的目的区域4。 控制处理器5计算转换参数并控制初始图像数据的部分到高速低容量高速缓存存储器9的转移。空间过滤器10对高速缓存存储器9中的数据进行转换，并且由此修改的图像部分数据是 写到目的地4。
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公开(公告)号：EP0581560A2
公开(公告)日：1994-02-02
申请号：EP93305893.5
申请日：1993-07-26
申请人： QUANTEL LIMITED
IPC分类号： G09G5/14
CPC分类号： G09G5/14
摘要： An electronic image processing system comprises an image store (11), a controller (14) and a monitor (13). The image store (11) stores data representing plural images as a multiplicity of pixels with the data for each image being stored as a one dimensional data list in a sequence of consecutive store addresses. The controller is provided to control the reading of data representing image portions from the store for display at respective display areas on the monitor (13) by identifying in the store data defining each of the image portions and by dividing the monitor into plural vertical zones (Y1, Y2). Each vertical zone is defined by a vertical start position and a vertical length (YLEN) and has one or more associated horizontal zones (X1, X2, X3) defined by a horizontal start position and a horizontal length (XLEN). Together the vertical and horizontal zones define the areas in which respective image portions are displayed.
摘要翻译： 电子图像处理系统包括图像存储器（11），控制器（14）和监视器（13）。 图像存储器（11）将表示多个图像的数据存储为多个像素，每个图像的数据作为一维数据列表存储在连续存储地址的序列中。 控制器被设置用于通过在存储定义每个图像部分的数据中识别并通过将监视器划分成多个垂直区域来控制从商店中读取表示图像部分的数据以显示在监视器（13）上的相应显示区域 Y1，Y2）。 每个垂直区由垂直起始位置和垂直长度（YLEN）定义，并具有由水平起始位置和水平长度（XLEN）定义的一个或多个相关水平区（X1，X2，X3）。 垂直和水平区一起定义了显示各个图像部分的区域。
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10.发明公开
公开(公告)号：EP0285271A3
公开(公告)日：1990-07-18
申请号：EP88301991.1
申请日：1988-03-08
申请人： QUANTEL LIMITED
摘要： A character generating system is disclosed having a source of batches of video keying signals representing different characters combined with further keying signals representing a background for the respective character. The video keying signals are confined to one value range and said further keying signals are confined to a different value range. The system effects spatial transformation of the combined signals and responds to the values of the spatially transformed combined signals to derive shape signals corresponding to the further keying signals and to derive shade signals corresponding to the video keying signals. In response to the shape and shade signals different video signals are provided respectively representing the character and the background both spatially transformed as the combined signals were spatially transformed.
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