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公开(公告)号：US5946500A
公开(公告)日：1999-08-31
申请号：US933432
申请日：1997-09-18
申请人： Henry J. Oles
发明人： Henry J. Oles
摘要： The present invention is a method and apparatus for background generation and chroma replacement for use with video and digital imaging that includes motion pictures, television, commercial and portrait photography. The present invention comprises a projection device that generates and projects a background image where the projection device further comprises a front projecting device and a retroreflective screen. The front projection device couples to a camera and comprises a projector with a removeable filter coupled to a beamsplitter enclosure. The beamsplitter enclosure comprises a beamsplitter with a quick connect coupling. A sizing ring couples the quick connect coupling to the camera lens. The removable filter in the projector may comprise a solid colored filter or a photographic image.
摘要翻译： 本发明是一种用于背景生成和色度替换的方法和装置，其用于包括电影，电视，商业和人像摄影的视频和数字成像。 本发明包括投影装置，其投影背景图像，投影装置还包括前投影装置和回射屏。 前投影装置耦合到相机并且包括具有耦合到分束器外壳的可移除滤光器的投影仪。 分束器外壳包括具有快速连接联轴器的分束器。 大小环将快速连接联轴器耦合到相机镜头。 投影仪中的可移除滤光片可以包括固体彩色滤光片或摄影图像。
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公开(公告)号：US5745186A
公开(公告)日：1998-04-28
申请号：US649158
申请日：1996-05-17
申请人： Yutaka Shimizu , Mitoku Kamei
发明人： Yutaka Shimizu , Mitoku Kamei
CPC分类号： H04N9/74
摘要： A 4:4:4 component video signal comprising a luminance signal Y and color-difference signals Cb and Cr is transformed to a 4:1:1 component coded video signal coded by a coding device, reducing processing is carried out after transformation and the result is written into the frame memory based on an enable signal. At this point, the pulse number of the enable signal ENy of the reduced luminance signal is counted, the differential between the horizontal pixel number when the reduced color-difference signals are decoded to the original 4:4:4 component video signal and the horizontal pixel number of the reduced luminance signal is determined, a dummy pulse of this differential is generated and the dummy pulse portion only of the writing address of the frame memory for the reduced luminance signal is shifted backwards. Reduced signals read out from the frame memory are outputted after being decoded to the original 4:4:4 component video signal by the decoding device.
摘要翻译： 包括亮度信号Y和色差信号Cb和Cr的4：4：4分量视频信号被变换为由编码装置编码的4:1:1分量编码视频信号，在转换之后进行减少处理， 结果根据使能信号写入帧存储器。 此时，降低亮度信号的使能信号ENy的脉冲数被计数，当缩小的色差信号被解码为原始的4:4:4分量视频信号的水平像素数与水平像素数之间的差 确定降低亮度信号的像素数，产生该差分的伪脉冲，并且只有用于降低亮度信号的帧存储器的写入地址的伪脉冲部分向后移位。 在由解码装置解码为原始的4：4：4分量视频信号之后，从帧存储器读出的减少的信号被输出。
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43.发明授权
公开(公告)号：US5488432A
公开(公告)日：1996-01-30
申请号：US361172
申请日：1994-12-21
摘要： The present invention concerns a processing method for a video signal coded in the form of blocks of K words, this signal being written to or read from two frame memories (FM1, FM2) each including an input port, a high speed output port and a low speed output port. According to this method, the input digital video signal is formed by sets of M' blocks with N' block containing luminance data (Y1, Y2 . . . ) and M'-N' blocks containing chrominance data (C1, C2 . . . ), the blocks containing the chrominance data (C1) are written in the first memory (FM1) and the blocks containing luminance data (Y1) are written in the second memory (FM2). Then the blocks containing the luminance data and the blocks containing the chrominance data are read simultaneously on the high speed output port of each memory, the memories being inverted at each frame, and the data eventually being processed to obtain video data in output that presents a compression ratio M/N with M>N.
摘要翻译： 本发明涉及一种以K字块的形式编码的视频信号的处理方法，该信号被写入或从两个帧存储器（FM1，FM2）中读取，每个帧存储器包括输入端口，高速输出端口和 低速输出端口。 根据该方法，输入数字视频信号由包含亮度数据（Y1，Y2 ...）的N'块和包含色度数据（C1，C2 ...）的M'-N块组成的M'块组成。 ），将含有色度数据（C1）的块写入第一存储器（FM1），并且将包含亮度数据（Y1）的块写入第二存储器（FM2）。 然后，在每个存储器的高速输出端口上同时读取包含亮度数据的块和包含色度数据的块，存储器在每帧被反转，并且数据最终被处理以获得输出中的视频数据， 压缩比M / N，M> N。
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44.发明授权System for producing image on first medium, such as video, simulating the appearance of image on second medium, such as motion picture or other photographic film 失效用于在第一介质上生成图像的系统，例如视频，模拟第二介质上的图像的外观，诸如电影或其他摄影胶片
公开(公告)号：US5457491A
公开(公告)日：1995-10-10
申请号：US264433
申请日：1994-06-23
申请人： Craig P. Mowry
发明人： Craig P. Mowry
IPC分类号： G11B27/024 , G11B27/028 , G11B27/031 , H04N5/253 , H04N5/262 , H04N9/43 , H04N9/74 , H04N9/79 , H04N3/36
CPC分类号： G11B27/028 , G11B27/031 , H04N5/253 , H04N5/262 , H04N9/43 , H04N9/74 , H04N9/79 , G11B2220/218 , G11B2220/2545 , G11B2220/90 , G11B27/024
摘要： A system for processing information in an image originated on a first medium into data representative of a modified image simulating an image originated on a selected second medium. The method of the system includes producing digital data representative of the color component response of a selected second medium under a selected group of variables affecting the response of the second medium to subject colors; storing the digital data in a memory for use in modifying digital data representative of color component values within the image originated on the first medium to simulate each corresponding component response within an image originated on the second medium; correlating data derived from the image originated on the first medium with the digital data representative of the color component response of the selected second medium; and selectively modifying the information in the image originating on the first medium based on the digital data representative of the color component response of the selected second medium, thereby to simulate in the image originating on the first medium characteristics of the second medium.
摘要翻译： 一种用于处理在第一媒体上产生的图像中的信息的数据的数据代表模拟在所选择的第二媒体上产生的图像的修改图像的数据。 该系统的方法包括在影响第二介质对目标颜色的响应的选定的一组变量下产生表示所选择的第二介质的颜色分量响应的数字数据; 将数字数据存储在存储器中，用于修改代表在第一介质上的图像中的颜色分量值的数字数据，以模拟在第二介质上产生的图像内的每个对应的分量响应; 将从第一介质上产生的图像导出的数据与表示所选择的第二介质的颜色分量响应的数字数据相关联; 以及基于代表所选择的第二介质的颜色分量响应的数字数据，选择性地修改源自第一介质的图像中的信息，从而在源于第二介质的第一介质特性的图像中模拟。
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公开(公告)号：US5448301A
公开(公告)日：1995-09-05
申请号：US248794
申请日：1994-05-25
申请人： James A. Michener
发明人： James A. Michener
CPC分类号： H04N9/74 , G06T3/00 , H04N5/2628
摘要： A programmable video transformation rendering method and apparatus regenerates an arbitrary reverse address map according to a transformation function representing a desired video effect by using a set of parameters that are run length encoded. Each scan line in target space for an output image is divided into one or more continuous line segments in source space for the input image using a continuous function for each line segment. The parameters for each line segment are determined, encoded, and stored for execution of the transformation function. For each line segment the parameters are updated, with only those parameters needing updated being stored together with the prior parameters that do not need to be updated. The continuous function is in the form of a polynomial equation and is a compromise between the amount of data generated and the calculations required.
摘要翻译： 可编程视频变换渲染方法和装置通过使用运行长度编码的一组参数，根据表示期望的视频效果的变换函数再生任意的反向地址映射。 用于输出图像的目标空间中的每个扫描线在输入图像的源空间中被划分成一个或多个连续线段，使用每个线段的连续函数。 确定，编码和存储每个线段的参数以执行变换函数。 对于每个线段，参数被更新，只有那些需要更新的参数与先前不需要更新的参数一起存储在一起。 连续函数是多项式方程的形式，是生成的数据量与所需计算之间的妥协。
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公开(公告)号：US5412401A
公开(公告)日：1995-05-02
申请号：US287525
申请日：1994-08-08
申请人： Bruno Wolf , Linda M. Kulmacezewski
发明人： Bruno Wolf , Linda M. Kulmacezewski
CPC分类号： H04N5/2628 , H04N9/74
摘要： A digital video effects generator includes: circuit for up-sampling the digital video component signals prior to their spatial transformation and linear interpolation, thereby reducing losses due to the (sin x)/x frequency response of the sampled video signal; circuit for spatially-mapping video motion data representing the degree of video data motion between temporally adjacent video frames and for motion adaptive interpolation to selectively blend interpolated video field data in accordance therewith; circuit for pre-transform keying, thereby allowing two video signal transformations to be keyed simultaneously; circuit for selectively transforming portions of input video signals, thereby allowing selective keying of non-spatially transformed video into selected regions of the video image; circuit for selectively linking keyframes within separate effects and providing smooth parametric transitions therebetween, thereby allowing several separate effects to be combined into a single effect with smooth parametric transitions between the linked (inter-effect) keyframes; and circuit for maintaining "pinned" image corners during parametric transitions between keyframes.
摘要翻译： 数字视频效果发生器包括：用于在其空间变换和线性插值之前对数字视频分量信号进行上采样的电路，从而减少由于采样视频信号的（sin x）/ x频率响应引起的损耗; 用于空间映射表示时间上相邻的视频帧之间的视频数据运动的程度的视频运动数据和用于运动自适应插值的电路，用于根据其选择性地混合内插的视频场数据; 用于预变换键控的电路，从而允许两个视频信号转换同时被键控; 用于选择性地变换输入视频信号的部分，从而允许将非空间变换的视频选择性地键入到视频图像的选定区域中; 电路，用于选择性地将关键帧链接在单独的效果中并且在它们之间提供平滑的参数转换，从而允许将多个单独的效果组合成单个效果，并且在链接（效应间）关键帧之间具有平滑的参数转换; 以及用于在关键帧之间的参数转换期间保持“固定”图像角的电路。
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公开(公告)号：US5293255A
公开(公告)日：1994-03-08
申请号：US798892
申请日：1991-11-27
CPC分类号： H04N9/74 , H04N1/3872 , H04N5/262 , H04N5/2621
摘要： The present invention provides for designation of a prescribed area within an image as an initial extracting area, extraction of an area which fulfills the conditions determined according to the characteristics of the specific image from an image signal of an image, generation of comparative area signal presenting an area slightly larger than the extracted area which is necessary for fulfilling the conditions from the area extracting signal of the designated initial extracting area, comparison of the comparative area signal that has been generated with the candidate area signal through which the initial extracting signal of the initial extracting area is converted into an area extracting signal, and extraction of an image signal within the area determined by the new area extracting signal. As a result, the image which fulfills the conditions other than the specific image is eliminated as the extracted area that has been set as an initial extracting area changes to coincide with the specific image and only the object image which fulfills the conditions is extracted. Furthermore, since the area extracting signal is stored in a memory and used for generation of the next area extracting signal, the extracted area will follow the changes in image area owing to increase in size or movement of a specific object, thereby making it possible to extract a specific image in realtime.
摘要翻译： 本发明提供将图像内的规定区域指定为初始提取区域，从图像的图像信号中提取满足根据特定图像的特性确定的条件的区域，生成比较区域信号呈现 比从指定的初始提取区域的区域提取信号来满足条件所需的提取区域稍大的区域，将生成的比较区域信号与候选区域信号进行比较，通过该候选区域信号，初始提取信号 将初始提取区域转换为区域提取信号，并提取由新区域提取信号确定的区域内的图像信号。 结果，当被设置为初始提取区域的提取区域改变以与特定图像一致时，除去满足特定图像之外的条件的图像，并且仅提取满足条件的对象图像。 此外，由于区域提取信号被存储在存储器中并用于生成下一个区域提取信号，所以提取的区域将由于特定对象的尺寸或移动的增加而跟随图像区域的改变，从而使得可以 实时提取特定图像。
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公开(公告)号：US5287172A
公开(公告)日：1994-02-15
申请号：US777132
申请日：1991-10-16
申请人： Bong S. Lee
发明人： Bong S. Lee
摘要： An automatic on-screen color signal converting circuit is disclosed, which includes a color signal level detecting part (30), an inverting part (40), and combining/switching part (70), wherein the color signal level detecting part (30) detects the level of the video color signal from the input color difference signal and luminance signal and the inverting part (40) inverts the output signal of the color signal level detecting part (30) to combine them with an on-screen signal blanking signal outputted from an OSD generating part (60). Therefore, the cathode ray tube driving circuit (20) is provided with an OSD color signal which is complementary to that of the video signal and the on-screen signal can be always clearly distinguished from the video signal during their simultaneous display and also automatically converted according to changing of the video signals.
摘要翻译： 公开了一种自动屏幕彩色信号转换电路，它包括一个彩色信号电平检测部分（30），一个反相部分（40）和组合/切换部分（70），其中彩色信号电平检测部分（30） 从输入色差信号和亮度信号中检测出视频彩色信号的电平，反相部分（40）使颜色信号电平检测部分（30）的输出信号反相，将它们与输出的屏上信号消隐信号相组合 来自OSD生成部（60）。 因此，阴极射线管驱动电路（20）具有与视频信号互补的OSD颜色信号，并且在屏幕信号同时显示期间可以始终将视频信号与视频信号清楚地区分开，并且还自动转换 根据视频信号的变化。
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49.发明授权Method and apparatus for generating video signal representing controllable color matte 失效用于产生表示可控色哑光的视频信号的方法和装置
公开(公告)号：US5231475A
公开(公告)日：1993-07-27
申请号：US481508
申请日：1990-02-16
IPC分类号： H04N9/74
CPC分类号： H04N9/74
摘要： A matte synthesizer and method generates baseband video signal information from user inputs for selecting levels of luminance, saturation and hue. The synthesizer includes continuously variable controls for inputting user selections over respective ranges of adjustment, a processor programmed to calculate directly a plurality of discrete amplitude samples in a chroma cycle of a video signal corresponding to a periodic wave at a baseband frequency of the video signal with a DC level determined by the luminance, a peak-to-peak amplitude determined by the saturation, and a phase shift relative to a reference burst determined by the hue, and a multiplexing method operable to read out the discrete amplitude samples to an output, during each cycle of the chroma baseband frequency. The discrete amplitude samples are calculated for a vertical field of the composite video signal and displayed during the next field. The signal thus obtained is filtered and superimposed with a synchronizing signal. The resulting matte signal can be displayed on a standard color television monitor. The repetitive output can be provided by sequentially and repetitively routing calculated amplitude values through a digital to analog converter and summing the output with synchronizing information.
摘要翻译： 无光泽合成器和方法从用户输入产生用于选择亮度，饱和度和色调等级的基带视频信号信息。 合成器包括用于在各个调节范围上输入用户选择的连续可变控制器，被编程为直接在与视频信号的基带频率处的周期波对应的视频信号的色度周期中直接计算多个离散振幅样本的处理器， 由亮度确定的DC电平，由饱和度确定的峰 - 峰幅度和相对于由色相确定的参考突发的相移;以及多路复用方法，用于将离散振幅样本读出到输出， 在色度基带频率的每个周期。 对于复合视频信号的垂直场计算离散振幅样本，并在下一个场期间显示。 由此获得的信号被滤波并且与同步信号叠加。 所得到的无光泽信号可以显示在标准彩色电视监视器上。 可以通过顺序地和重复地通过数模转换器路由计算的振幅值并将输出与同步信息求和来提供重复输出。
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公开(公告)号：US5142273A
公开(公告)日：1992-08-25
申请号：US585779
申请日：1990-09-20
申请人： James A. Wobermin
发明人： James A. Wobermin
CPC分类号： H04N5/2622 , G09G5/026 , H04N5/278 , H04N9/74
摘要： A symbol generator that provides a video color signal that presents different colors for different portions of a symbol is illustrated herein. The symbol generator includes a number of separate stages that are connected in series to provide a processing pipeline. Elements for providing vertical color blends between the top of a symbol or selected background area and bottom of the symbol or background area are divided between the processing stages. Vertical color blending is achieved by mixing a difference color into a start color in an amount determined by the depth or displacement of consecutive raster lines from the top of the symbol.
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