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公开(公告)号：US5321500A
公开(公告)日：1994-06-14
申请号：US741329
申请日：1991-08-07
CPC分类号： H04N9/11
摘要： A film scanning system and method for generating a digital signal representing digitized film images, and having a first (less than real-time) film frame rate, and performing digital correction (such as flare correction, color correction, or both) on the digital signal at a higher (but still less than real-time) frame rate. In a preferred embodiment, conventional video signals (having NTSC or PAL format, or SMPTE-240M or another high definition video format) are then generated from the corrected digital signal. In one embodiment, the system of the invention includes circuitry for scanning color film frames to generate and store a digital signal (representing digitized color film images) at a rate of 1.875 film frames per second, circuitry for color correcting the stored digital signal at an internal processing rate of 7.5 frames per second, and means for generating SMPTE-240M high definition video signals (having a frame rate of 30 frames per second) from the color corrected digital signal.
摘要翻译： 一种电影扫描系统和方法，用于产生表示数字化胶片图像的数字信号，并且具有第一（小于实时的）胶片帧速率，并且在数字图像上执行数字校正（例如耀斑校正，颜色校正或两者） 信号在较高（但仍然小于实时）帧速率。 在优选实施例中，然后从校正的数字信号生成常规视频信号（具有NTSC或PAL格式，或SMPTE-240M或另一高清晰度视频格式）。 在一个实施例中，本发明的系统包括用于扫描彩色胶片帧的电路，以每秒1.875幅胶片帧的速率产生和存储数字信号（代表数字化的彩色胶片图像），电路用于在存储的数字信号 内部处理速率为7.5帧/秒，以及用于从色彩校正数字信号产生SMPTE-240M高分辨率视频信号（具有30帧每秒帧速率）的装置。
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公开(公告)号：US5289281A
公开(公告)日：1994-02-22
申请号：US880304
申请日：1992-05-05
摘要： A system for recording one or more individual fields or frames of a color, high definition video signal. In a preferred embodiment, the system is capable of digitally recording as many as 32 frames of a color, high definition video signal per memory board, and as many as four memory boards may be installed in the system. The invention is capable of performing partial or full frame (or field) transfers at any selected rate less than or equal to the standard video rate. In a preferred embodiment, the system of the invention accepts HDTV signals in either digital or analog format, includes a post processing unit for simultaneously reconstructing stored HDTV signals in both digital and analog format, and a control unit which emulates a conventional video tape recorder (in the sense that it responds to conventional video tape recorder control signals) for controlling the system's frame memory. The invention includes a parallel computer interface which permits transfer of full or partial fields or frames (in non-real time) between the frame memory and an external computer (or image processing unit) via a conventional communication link. The control unit and an interface unit including the parallel computer interface are connected by a serial communications link, so that a host computer may control memory access through the interface unit.
摘要翻译： 一种用于记录彩色高分辨率视频信号的一个或多个单独场或帧的系统。 在优选实施例中，该系统能够对每个存储器板数字记录多达32帧的彩色高清晰度视频信号，并且可以在系统中安装多达四个存储器板。 本发明能够以小于或等于标准视频速率的任何选定的速率进行部分或全帧（或场）传送。 在优选实施例中，本发明的系统接收数字或模拟格式的HDTV信号，包括用于同时重建数字和模拟格式的存储的HDTV信号的后处理单元，以及模拟传统录像机的控制单元 在某种意义上说，它响应传统的录像机控制信号），用于控制系统的帧存储器。 本发明包括一个并行计算机接口，其允许经由传统通信链路在帧存储器和外部计算机（或图像处理单元）之间传输全部或部分字段或帧（非实时的）。 控制单元和包括并行计算机接口的接口单元通过串行通信链路连接，使得主计算机可以通过接口单元来控制存储器访问。
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3.发明授权Film-to-video frame image conversion apparatus and method for selectively identifying video fields and frames 失效用于选择性地识别视频场和帧的电影到视频帧图像转换装置和方法
公开(公告)号：US5260787A
公开(公告)日：1993-11-09
申请号：US883888
申请日：1992-05-12
CPC分类号： H04N3/36 , H04N7/0112
摘要： A film-to-video frame image convertor includes a 3-2 pulldown frame convertor for converting signals representing input film frame images, having a lower associated film frame image rate, to signals representing output video frame images having a higher associated video frame image rate. The output video frame images consist of genuine and simulated video frame images, which correspond to actual input film frame images and multiple input film frame images, respectively, in accordance with a 3-2 film-to-video frame pulldown. Each genuine video frame image consists of two video field images corresponding to two actual film field images from the same film frame image. Each simulated video frame image consists of two video field images corresponding to two actual film field images from different film frame images, with one of the two video field images being a duplicate of a video field image in an adjacent video frame image. Identification signals are selectively inserted into the vertical blanking interval of some of the output video frame images to identify which ones are simulated video frame images containing duplicate video field images. This allows the duplicate video field images to be identified and selectively deleted when the video frame images, having the higher associated video frame image rate, are to be reconverted to film frame images having the lower associated film frame image rate.
摘要翻译： 一种电影到视频帧图像转换器包括3-2下拉帧转换器，用于将表示具有较低相关联的胶片帧图像速率的输入胶片帧图像的信号转换成表示具有较高相关视频帧图像速率的输出视频帧图像的信号 。 输出视频帧图像由正确和模拟的视频帧图像组成，分别对应于实际的输入胶片帧图像和多个输入胶片帧图像，根据3-2电影到视频帧下拉。 每个正版视频帧图像由对应于来自相同胶片帧图像的两个实际胶片场图像的两个视频场图像组成。 每个模拟视频帧图像由对应于来自不同胶片帧图像的两个实际胶片场图像的两个视频场图像组成，两个视频场图像中的一个与相邻视频帧图像中的视频场图像重复。 识别信号被选择性地插入到一些输出视频帧图像的垂直消隐间隔中，以识别哪些是包含重复视频场图像的模拟视频帧图像。 当具有较高相关联的视频帧图像速率的视频帧图像将被重新转换为具有较低相关联的胶片帧图像速率的胶片帧图像时，这允许识别重复的视频场图像并选择性地删除。
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4.发明授权
公开(公告)号：US4901150A
公开(公告)日：1990-02-13
申请号：US274820
申请日：1988-11-22
申请人： Marc Klingelhofer , Vinson R. Perry
发明人： Marc Klingelhofer , Vinson R. Perry
IPC分类号： H04N5/21
CPC分类号： H04N5/21
摘要： A method and system for separating a noise signal into frequency components, then automatically performing noise reduction on the individual frequency components, and then recombining the processed frequency components to generate an output noise signal. The noise reduction parameters for each frequency component may be independently set. The output noise signal generated during performance of the invention will typically be recombined with a signal (such as a television signal) from which the input noise signal for the invention was originally extracted. In a preferred embodiment, the input noise signal supplied to the system of the invention is generated by subtracting two adjacent frames of a television signal. In a preferred embodiment, the system of the invention includes: circuitry for implementing a Walsh-Hadamard transform to separate the input noise signal into a set of frequency components; a set of automatic gain controlled amplifiers for independently performing noise reduction on each frequency component; and a noise component collator for combining the processed frequency components to generate a "component controlled noise signal". Each automatic gain controlled amplifier is independently controlled in response to a feedback signal representing the noise characteristics of a different frequency component of the input noise signal. Preferably, the system of the invention also includes a gain controlled amplifier for transforming the component controlled noise signal into a gain controlled noise output signal.
摘要翻译： 一种用于将噪声信号分离成频率成分的方法和系统，然后对各个频率分量自动执行降噪，然后将经处理的频率分量重组以产生输出噪声信号。 可以独立地设置每个频率分量的降噪参数。 在本发明的执行期间产生的输出噪声信号通常将与最初提取本发明的输入噪声信号的信号（例如电视信号）重组。 在优选实施例中，通过减去电视信号的两个相邻帧来产生提供给本发明的系统的输入噪声信号。 在优选实施例中，本发明的系统包括：用于实现沃尔什 - 哈达玛变换以将输入噪声信号分离成一组频率分量的电路; 一组用于在每个频率分量上独立执行降噪的自动增益控制放大器; 以及用于组合经处理的频率分量以产生“分量控制的噪声信号”的噪声分量整理器。 响应于表示输入噪声信号的不同频率分量的噪声特性的反馈信号，每个自动增益控制放大器被独立地控制。 优选地，本发明的系统还包括用于将分量受控噪声信号变换成增益受控噪声输出信号的增益控制放大器。
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5.发明授权
公开(公告)号：US5805148A
公开(公告)日：1998-09-08
申请号：US567854
申请日：1995-12-06
IPC分类号： H04N5/46 , G06F3/14 , G06T3/00 , G09G5/36 , G09G5/39 , G09G5/397 , H04N5/268 , H04N5/45 , H04N9/64
摘要： An interactive high definition display system generates its own graphics display data, accepts multiple video signals and graphics display signals based upon multiple standards, and selectively produces therefrom an integrated video and graphics display featuring multiple images or compositing. The incoming video signals are decoded into their corresponding RGB signals, digitized and written into memory. The incoming and internally generated graphics display data signals are also written into memory. According to preprogrammed instructions, or interactively according to instructions received via a computer interface, an integrated, multiple image or composite display pattern with both active video and graphics display images can be generated by selecting from and arranging for display the stored video and graphics display data, and viewed on a high definition display or stored on a high definition video tape recorder.
摘要翻译： 交互式高分辨率显示系统产生其自己的图形显示数据，基于多个标准接受多个视频信号和图形显示信号，并且从中选择性地产生具有多个图像或合成的集成视频和图形显示。 输入的视频信号被解码为相应的RGB信号，数字化并写入存储器。 传入和内部生成的图形显示数据信号也被写入存储器。 根据预编程指令，或者根据通过计算机接口接收的指令交互地，可以通过从存储的视频和图形显示数据中进行选择和排列来生成具有活动视频和图形显示图像的集成的多图像或复合显示图案 并且在高分辨率显示器上观看或存储在高分辨率磁带录像机上。
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公开(公告)号：US5255083A
公开(公告)日：1993-10-19
申请号：US710704
申请日：1991-06-05
IPC分类号： G03B27/73 , H04N1/407 , H04N1/60 , H04N1/64 , H04N5/253 , H04N5/262 , H04N9/11 , H04N9/64 , H04N1/70
摘要： A digital color correction system and method provide for color correction in a film-to-video signal conversion system. Film color correction is done by correcting incoming digitized film color signals (e.g. red, green and blue) according to film color correction parameters which represent film characteristics, such as film speed, gamma, and minimum and maximum film dye density. The film color correction parameters are used to sensitometrically convert the film color signals to video color signals according to a sensitometric film model, such as the Hurter-Driffield ("HD") characteristic curve. Video color correction is then performed upon the corrected film color signals according to video color correction parameters which represent video signal characteristics, such as hue and saturation, as well as a video color standard model, such as SMPTE 240M. Alternatively, separate signals representing the film or video color correction parameters can be encoded as separate data into the corrected or uncorrected color signals. This color correction or color correction parameter encoding can be done on a field-by-field, frame-by-frame or scene-by-scene basis, so that each resulting video field, frame or scene, respectively, is appropriately color corrected or contains its own specific color correction information.
摘要翻译： 一种数字色彩校正系统和方法在电影到视频信号转换系统中提供色彩校正。 通过根据胶片颜色校正参数校正输入的数字化胶片颜色信号（例如红色，绿色和蓝色）来完成胶片颜色校正，所述胶片颜色校正参数表示胶片特性，例如胶片速度，γ，以及最小和最大胶片染料密度。 胶片颜色校正参数用于根据感光膜模型（例如Hurter-Driffield（“HD”）特性曲线将胶片颜色信号对视频颜色信号进行感光度转换。 然后根据表示诸如色调和饱和度的视频信号特性的视频颜色校正参数以及诸如SMPTE 240M的视频颜色标准模型，对经校正的胶片彩色信号执行视频颜色校正。 或者，表示胶片或视频颜色校正参数的单独信号可以被编码为单独的数据到校正或未校正的颜色信号。 该颜色校正或颜色校正参数编码可以逐场地，逐帧地或逐帧地进行，使得分别得到的每个结果视频场，帧或场景被适当地颜色校正，或者 包含其自己的具体颜色校正信息。
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7.发明授权
公开(公告)号：US5185666A
公开(公告)日：1993-02-09
申请号：US740626
申请日：1991-08-05
CPC分类号： H04N1/6011 , H04N5/2622 , H04N5/445 , H04N9/11 , H04N17/00 , H04N5/45
摘要： A method and system for generating a bordered split screen video display. In preferred embodiment, the invention generates a composite signal from digital signals representing reference and scanned film images, converts the composite signal to a composite video signal, and displays the composite video signal as a bordered split screen video display. The invention can be embodied in a film scanning system which includes a processor for digitally correcting a digital signal representing a digitized film image, such as by performing digital color correction on the digital signal. The film scanning system also includes field store circuitry for storing the corrected digital signal and a digital reference signal, circuitry for generating a composite signal from the stored reference and corrected signal, and circuitry for generating a composite video signal from the composite signal. In accordance with the invention, the composite video signal is displayed as a split screen composite image having a distinctive border between distinct test and reference picture areas. In a class of preferred embodiments, a graphics cursor signal is also inserted into the composite signal. When displayed, the cursor signal overlays a cursor region of the bordered split screen composite image.
摘要翻译： 一种用于生成边界分屏显示的方法和系统。 在优选实施例中，本发明从表示参考和扫描胶片图像的数字信号产生复合信号，将复合信号转换为复合视频信号，并将复合视频信号显示为边界分屏显示。 本发明可以体现在一种胶片扫描系统中，该系统包括一个处理器，用于数字化地校正表示数字化胶片图像的数字信号，例如通过对数字信号执行数字彩色校正。 电影扫描系统还包括用于存储校正的数字信号和数字参考信号的现场存储电路，用于从存储的参考和校正信号产生复合信号的电路，以及用于从复合信号产生复合视频信号的电路。 根据本发明，复合视频信号被显示为在不同的测试和参考图像区域之间具有独特边界的分割屏幕合成图像。 在一类优选实施例中，图形光标信号也被插入到复合信号中。 当显示时，光标信号覆盖边界分屏合成图像的光标区域。
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公开(公告)号：US4386379A
公开(公告)日：1983-05-31
申请号：US195824
申请日：1980-10-10
申请人： Grant M. Smith , Vinson R. Perry , Bruce E. Busby
发明人： Grant M. Smith , Vinson R. Perry , Bruce E. Busby
IPC分类号： G11B15/00 , G11B15/02 , G11B27/028 , G11B15/18 , G11B19/02
CPC分类号： G11B15/026 , G11B15/005 , G11B27/028
摘要： A controller for a video tape recorder (VTR) which allows a plurality of separate tape times to be cued at the selection of the operator by means of separate cue registers and corresponding cue switches operating in conjunction with a programmed controller and a tape time counter which is slaved to the VTR tape timer. The controller also causes the VTR to search for cued tape times as stored in selected ones of the cue registers and, at the option of the operator, to stop the tape at a tape time slightly prior to a selected one of the cued tape times. Digital, fine and coarse clock tape time displays are also provided for indicating the tape time, when the tape is moving, and selected cued tape times when the tape is stopped.
摘要翻译： 一种用于录像机（VTR）的控制器，其允许通过独立的提示寄存器和与编程的控制器和磁带计时器一起操作的对应的提示开关在操作者的选择时提供多个独立的磁带时间， 被刻录到VTR磁带计时器。 控制器还使VTR搜索存储在所选择的提示寄存器中的提供的磁带时间，并且可以在操作者的选择下，在磁带时间稍微在所选择的一个提示磁带时间之前停止磁带。 还提供了数字，精细和粗糙的时钟磁带时间显示，用于指示磁带运行时的磁带时间，以及磁带停止时选定的提取磁带时间。
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9.发明授权
公开(公告)号：US4385323A
公开(公告)日：1983-05-24
申请号：US802839
申请日：1977-06-02
申请人： Raoul B. Salem , Vinson R. Perry
发明人： Raoul B. Salem , Vinson R. Perry
CPC分类号： H04N5/2286
摘要： A circuit for suppressing the effects of excessive highlights is automatically enabled in response to highlights in the viewed scene which exceed a given threshold. The circuit is used in combination with a special pickup tube or tubes which include excessive highlight protection elements and a corresponding mode of operation. The circuit allows the continuous operation of the pickup tubes with improved resolution at a heretofore prohibitive, but preferred, high voltage level (e.g., 950 volts), rather than the generally accepted and recommended operating level (e.g., 750 volts) therefor, while prolonging the lifetime of such tubes. Detector means generates the circuit enable signal in response to the presence of highlights in excess of the given threshold. Control circuit means are conditioned thereby to drive the tube into the corresponding mode of operation during the line flyback period corresponding to the horizontal blanking interval.
摘要翻译： 响应于超过给定阈值的观看场景中的高光，自动启用用于抑制过高亮度的影响的电路。 该电路与特殊的拾取管或管组合使用，其包括过多的高亮保护元件和相应的操作模式。 该电路允许以迄今禁止但优选的高电压电平（例如，950伏特）的改进的分辨率连续操作拾取管，而不是通常接受和推荐的操作电平（例如，750伏），同时延长 这种管的寿命。 检测器装置响应超过给定阈值的亮度的存在而产生电路使能信号。 控制电路装置被调节，从而在对应于水平消隐间隔的行回扫时段期间将管驱动到相应的操作模式。
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公开(公告)号：US4249202A
公开(公告)日：1981-02-03
申请号：US37345
申请日：1979-05-09
申请人： Vinson R. Perry , John O. Ryan
发明人： Vinson R. Perry , John O. Ryan
CPC分类号： H04N5/21
摘要： A coring circuit located prior to the aperture corrector circuit provides fast acting, remotely controlled, temperature compensated, frequency selective coring of the video signal. The wideband video signal is separated into its low frequency and high frequency components. The high frequency component is transformer coupled to a coring means proper which cores out the corresponding high frequency noise. The cored high frequency component then is recombined with the low frequency component to reconstitute the cored composite video signal for subsequent application to the aperture correction circuit.
摘要翻译： 位于孔径校正器电路之前的取芯电路提供视频信号的快速作用，远程控制的温度补偿的频率选择性取芯。 宽带视频信号被分为低频和高频分量。 高频分量是变压器耦合到一个取芯装置，它将核心相应的高频噪声。 然后将核心高频分量与低频分量重新组合以重构核心复合视频信号，以便后续应用于孔径校正电路。
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