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1. 发明授权

US5208875A Digital picture signal processing apparatus 失效
标题翻译：数字图像信号处理装置
公开(公告)号：US5208875A
公开(公告)日：1993-05-04
申请号：US883044
申请日：1992-05-07
申请人： Peter J. Virtue , Stephen M. Keating , David J. Hedley
发明人： Peter J. Virtue , Stephen M. Keating , David J. Hedley
IPC分类号： G06T1/60 , H04N7/26 , H04N7/36
CPC分类号： H04N19/433 , G06T1/60 , H04N19/523
摘要： A digital picture signal processing apparatus has memories each capable of storing digital words representing respective pixels which, when arranged in a two-dimensional array, make up a picture. A read address generator produces a digital read address identifying the position of a set of the stored words to be read from respective different ones of the memories, the words of the set representing a set of pixels so positioned relative to one another as to constitute at least some of the pixels of a portion of the picture. The read address comprises at least one least significant bit (LSB) for each of the coordinate directions. A digital filter has a number of multipliers equal to the number of words in the set and each being connected to a data bus of a respective memory so as to receive a respective one of the set of words read therefrom, and a plurality of coefficient memories. Each coefficient memory is connected to a respective one of the multipliers and stores all of a plurality of weighting coefficients each appropriate to the position of a respective one of the set of pixels in the picture portion. Each coefficient memory is responsive to the values of the LSBs and to identification of the memory whose data bus is connected to the associated multiplier to supply to that multiplier that one of the coefficients stored therein appropriate to the position in the picture portion of the pixel represented by the word supplied to that multiplier.
摘要翻译：数字图像信号处理装置具有各自能够存储表示各个像素的数字字的存储器，当以二维阵列排列时，构成图像。读取地址生成器产生一个数字读取地址，该数字读取地址识别要从各个不同的存储器读取的存储的字的集合的位置，该集合的字表示相对于彼此定位的一组像素，以构成图片的一部分的至少一些像素。读取地址包括用于每个坐标方向的至少一个最低有效位（LSB）。数字滤波器具有等于集合中的字数并且各自连接到相应存储器的数据总线的多个乘法器，以便接收从其读取的一组字中的相应一个，以及多个系数存储器。每个系数存储器连接到相应的一个乘法器，并且存储每个适合于图像部分中的像素组中的相应一个的位置的多个加权系数的全部。每个系数存储器响应于LSB的值和存储器的识别，其数据总线连接到相关联的乘法器，以向该乘法器提供其中存储的系数之一适合于表示的像素的图像部分中的位置由提供给该乘数的字。

2. 发明授权

US5125048A Obtaining access to a two-dimensional portion of a digital picture signal 失效
标题翻译：获取数字图像信号的二维部分
公开(公告)号：US5125048A
公开(公告)日：1992-06-23
申请号：US482050
申请日：1990-02-20
申请人： Peter J. Virtue , Stephen M. Keating , David J. Hedley
发明人： Peter J. Virtue , Stephen M. Keating , David J. Hedley
IPC分类号： H04N5/262 , G06T1/60 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50
CPC分类号： G06T1/60 , H04N19/423 , H04N19/433 , H04N19/523 , H04N19/61 , H04N19/649
摘要： Access to a two-dimensional (2-D) portion of a digital picture signal, the signal being made of a plurality of digital words representing respective pixels (P) when, when arranged in a 2-D array, make up the picture, is achieved as follows. The words are allocated into groups such that the pixels (P) represented by the words of each group make up a 2-D area (T0, T1, etc.) of the picture having a shape and size which is the same for all of the groups, the shape being such that the areas tessellate with one another to constitute at least part of the picture. Each word is stored in one of a plurality of memories (M0 to M15), the number of which is equal to the number of pixels (P) in the 2-D area (T0, T1, etc.), such that, for each pixel position in the area, the words from all of the groups representing the pixels having that pixel position in the area are stored in a respective one of the memories. Then, a set of the stored words which represent a set of pixels are read in parallel. The pixels of the set are so positioned relative to one another as to constitute at least some of the pixels (P0 to P15) of a 2-D portion of the picture which is of the same size and shape as the above-mentioned 2-D area (T0, T1, etc.) whereby, even if the pixels of the set are located in different ones of the 2-D areas, the words representing the pixels (P0 to P15) of the set are each stored in a respective different one of the memories (M0 to M15) so that they can be read in parallel.
摘要翻译：访问数字图像信号的二维（2-D）部分时，当以2-D阵列排列组成图像时，该信号由表示各个像素（P）的多个数字字组成，如下实现。这些字被分配成组，使得由每个组的单词表示的像素（P）构成图像的2-D区域（T0，T1等），其具有与所有图像相同的形状和大小这些组的形状使得这些区域相互镶嵌以构成图片的至少一部分。每个字存储在多个存储器（M0至M15）中的一个中，其数量等于2-D区域（T0，T1等）中的像素数（P），使得对于区域中的每个像素位置，表示具有该区域中的该像素位置的像素的所有组的字被存储在相应的一个存储器中。然后，并行地读取表示一组像素的一组存储字。该组的像素相对于彼此如此定位，以便构成图像的2-D部分的至少一些像素（P0至P15），其尺寸和形状与上述2- D区域（T0，T1等），由此即使集合的像素位于2-D区域中的不同区域中，表示集合的像素（P0至P15）的字各自存储在相应的不同的一个存储器（M0到M15），以便它们可以并行读取。

3. 发明授权

US5181111A Video signal processing apparatus and method 失效
标题翻译：视频信号处理设备和方法
公开(公告)号：US5181111A
公开(公告)日：1993-01-19
申请号：US735354
申请日：1991-07-24
申请人： David J. Hedley , Martin R. Dorricott
发明人： David J. Hedley , Martin R. Dorricott
IPC分类号： G11B27/032 , G11B27/28 , H04N5/87 , H04N7/01 , H04N7/26
CPC分类号： H04N7/014 , G11B27/032 , G11B27/28 , H04N19/142 , H04N19/179 , H04N19/87 , H04N5/87 , H04N7/0112 , G11B2220/90
摘要： Video signal processing apparatus, for example a television standards converter (12), for motion adaptive or motion compensated processing a video signal in dependence on inter-field or inter-frame information, comprises a reader (21) for reading scene discontinuity information relating to the video signal, which may be expressed in time codes, from a recording medium such as a magnetic disc, the apparatus being controlled in dependence on the read information to cause the processing of the video signal to change to being dependent on intra-field or intra-frame information at a scene discontinuity.
摘要翻译：视频信号处理装置，例如电视标准转换器（12），用于根据场间或帧间信息进行视频信号的运动自适应或运动补偿处理，包括读取器（21），用于读取与可以从时间码表示的视频信号来自诸如磁盘的记录介质，该装置根据读取的信息进行控制，以使视频信号的处理改变为依赖于场内或场景不连续的帧内信息。

4. 发明授权

US4774678A Video signal processing 失效
标题翻译：视频信号处理
公开(公告)号：US4774678A
公开(公告)日：1988-09-27
申请号：US836158
申请日：1986-03-04
申请人： Morgan W. A. David , David J. Hedley
发明人： Morgan W. A. David , David J. Hedley
IPC分类号： G06T3/00 , G06T3/40 , H04N5/262 , G09G1/06
CPC分类号： G06T3/4007 , H04N5/2628
摘要： Digital video sample values from a first sample domain are mapped to a second sample domain using a mapping function which involves a change in image size, for example, for a digital video effects unit. The apparatus comprises an address generator and a processor for computing, for each sample position in the second sample domain, the position of a point in the first sample domain which, using the mapping function, would map onto that sample position in the second sample domain, and an interpolator for obtaining from available input sample values an interpolated sample value for that point in the first sample domain, the interpolated sample value being used as the sample value for the sample position in that second sample domain.
摘要翻译：来自第一样本域的数字视频样本值使用涉及图像大小变化的映射函数映射到第二样本域，例如数字视频效果单元。所述装置包括地址发生器和处理器，用于针对第二采样域中的每个采样位置，计算第一采样域中的点的位置，其使用映射函数将映射到第二采样域中的采样位置以及内插器，用于从可用的输入采样值获得第一采样域中该点的内插采样值，将内插采样值用作该第二采样域中的采样位置的采样值。

5. 发明授权

US5430488A Image signal processing apparatus for converting to frame format rastered image data which is supplied in field format but which originated in frame format 失效
标题翻译：图像信号处理装置，用于转换为以帧格式提供但以帧格式发送的帧格式的rastered图像数据
公开(公告)号：US5430488A
公开(公告)日：1995-07-04
申请号：US910409
申请日：1992-07-08
申请人： David J. Hedley
发明人： David J. Hedley
IPC分类号： H04N7/01 , H04N5/44
CPC分类号： H04N7/012
摘要： An image signal processing system is described in which image data in an interlaced format is converted to full frame format prior to application of any vertical processing, A swing buffer 40 is employed with Field 0 being written into the even addresses of a DRAM 44 forming one side of the swing buffer under control of an write controller 48. Field 1 is written into the odd addresses, The data in full frame format is read from consecutive addresses in the DRAM 44 into a signal processing engine 62 whilst the next frame is being written into the DRAM 46 forming the other arm of the swing buffer 40. This arrangement allows data that was captured in full frame format to be vertically processed in full frame format thereby preserving its vertical resolution. The full frame image data was converted out of full frame format prior to receipt by the image processing system for compatibility with hardware developed for interlaced format data.
摘要翻译：描述了一种图像信号处理系统，其中在施加任何垂直处理之前以隔行扫描格式的图像数据被转换为全帧格式。采用摆幅缓冲器40，场0被写入形成一个的DRAM44的偶数地址在写入控制器48的控制下，摆动缓冲器的一侧。字段1被写入奇数地址。当下一帧被写入时，全帧格式的数据从DRAM44中的连续地址读取到信号处理引擎62中进入形成摆动缓冲器40的另一个臂的DRAM46中。这种布置使得以全帧格式捕获的数据以全帧格式垂直处理，从而保持其垂直分辨率。在图像处理系统接收之前，全帧图像数据被转换成全帧格式，以便与为隔行格式数据开发的硬件兼容。

6. 发明授权

US4751660A Determining orientation of transformed image 失效
标题翻译：确定变换图像的方向
公开(公告)号：US4751660A
公开(公告)日：1988-06-14
申请号：US878709
申请日：1986-06-26
申请人： David J. Hedley
发明人： David J. Hedley
IPC分类号： G06T1/00 , G06T3/00 , G06T17/40 , H04N5/262 , G06F15/46 , G06K9/48
CPC分类号： H04N5/2628 , G06T3/00
摘要： A method of processing video signals to achieve a visual effect involving three-dimensional manipulation of an input image includes the use of a circuit for determining pixel address by pixel address whether in the resulting transformed image the front or the back of the input image should be displayed. The circuit comprises a device defining an incremental surface in the transformed image by at least three adjacent non-collinear pixel addresses from the transformed image, a circuit for determining from the transformed pixel addresses whether or not a vector normal to the incremental surface points towards or away from a viewing point, and a device for selecting for display at one of the transformed pixel addresses the corresponding portion of the front or the back of the input image in dependence on whether the vector points towards or away from the viewing point.
摘要翻译：处理视频信号以实现涉及输入图像的三维操作的视觉效果的方法包括使用用于确定像素地址逐像素地址的电路，无论在所得到的变换图像中，输入图像的前面还是后面应该是显示。所述电路包括通过来自变换图像的至少三个相邻非共线像素地址在变换后的图像中定义增量表面的装置，用于根据变换的像素地址确定垂直于增量表面的向量是否指向或远离观察点的装置，以及用于根据矢量是指向观察点还是远离观察点来选择以在变换像素地址之一显示输入图像的前部或后部的相应部分的装置。

7. 发明授权

US4682217A Video signal processing 失效
标题翻译：视频信号处理
公开(公告)号：US4682217A
公开(公告)日：1987-07-21
申请号：US860209
申请日：1986-05-06
申请人： Morgan W. A. David , David J. Hedley
发明人： Morgan W. A. David , David J. Hedley
IPC分类号： G06T1/00 , G06T3/00 , G06T15/20 , G09G1/16 , G09G5/36 , H04N5/262 , H04N13/00 , H04N7/18
CPC分类号： G06T3/00 , H04N5/2628
摘要： A method of and apparatus for processing video signals to achieve a visual effect corresponding to that which would be achieved if an input two-dimensional image were projected on to a three-dimensional surface is disclosed. A video signal is formed into digitized sample values each having an input pixel address comprising X and Y coordinate values. X and Y scaling multipliers and Z coordinate values corresponding to the respective pixel addresses on the three-dimensional surface to which each of the input pixel addresses will be moved in achieving the effect are stored in a mapping store. Multipliers multiply the X and Y coordinate values of each input pixel address by the corresponding X and Y scaling multipliers, and the resulting scaled X and Y coordinate values and the associated Z coordinate values are supplied to a perspective transformation device to derive the output X and Y coordinate values corresponding to the effect.
摘要翻译：公开了一种用于处理视频信号以实现与将输入的二维图像投影到三维表面将实现的视觉效果相对应的视觉效果的方法和装置。视频信号被形成为具有包括X和Y坐标值的输入像素地址的数字化采样值。对应于每个输入像素地址将在其上移动以实现效果的三维表面上的各个像素地址的X和Y缩放倍数和Z坐标值被存储在映射存储器中。乘法器将每个输入像素地址的X和Y坐标值乘以相应的X和Y缩放倍数，并将所得到的缩放的X和Y坐标值和相关联的Z坐标值提供给透视变换设备以导出输出X和 Y坐标值对应于效果。

8. 发明授权

US5313566A Composite image generation with hidden surface removal using a single special effect generator 失效
标题翻译：使用单个特殊效果发生器的复合图像生成与隐藏的表面去除
公开(公告)号：US5313566A
公开(公告)日：1994-05-17
申请号：US20186
申请日：1993-02-16
申请人： David J. Hedley , James B. Pearman
发明人： David J. Hedley , James B. Pearman
IPC分类号： H04N5/262 , H04N5/272 , G06F3/14
CPC分类号： H04N5/2622 , H04N5/272
摘要： A method of generating an output video signal includes processing two or more input digital video signals so as to manipulate images that they represent and combining the processed signals to form the output video signal, which represents a composite image in which the manipulated images appear to fly through one another. In a first pass, a digital video effect generator (1) is supplied (4) with one of input video signals and is responsive to data (5) representing at least the manipulation to which the image represented by that one input signal is to be subjected to process that one input signal to subject the image represented thereby to the manipulation intended for that image. The processed signal resulting from the first pass is recorded (VTR1). In at least one subsequent pass, the generator 1) is supplied with the other or another of the input video signals and is responsive to data representing the manipulations to which the images represented by all of the input signals are to be subjected to process the other input signal so as to subject the image represented thereby to the manipulation intended for that image so as to crop or remove from the manipulated image any one or more portions thereof to be hidden in the composite image. The processed signal resulting from the at least one subsequent pass is keyed (16) into the recorded signal resulting from the previous pass.
摘要翻译：一种产生输出视频信号的方法包括处理两个或多个输入数字视频信号，以便操纵它们所代表的图像，并组合经处理的信号以形成输出视频信号，该输出视频信号表示被操纵的图像似乎飞行的合成图像通过彼此在第一遍中，数字视频效果发生器（1）被提供（4）输入视频信号中的一个，并且响应于至少表示由该一个输入信号表示的图像将被操纵的操作的数据（5）进行一个输入信号以使由其表示的图像对于该图像的操作进行处理。记录由第一遍产生的经处理的信号（VTR1）。在至少一个后续通过中，发生器1）被提供有输入视频信号中的另一个或另一个，并且响应于表示所有输入信号所表示的图像将被处理另一个的操作的数据输入信号，以使由其表示的图像受到针对该图像的操作，从而裁剪或从被操纵的图像中删除其要隐藏在合成图像中的任何一个或多个部分。由至少一个后续通过产生的经处理的信号被键入（16）到由先前通过产生的记录信号中。

9. 发明授权

US5237657A Apparatus for manipulating a picture represented by a video signal 失效
标题翻译：用于操纵由视频信号表示的图像的装置
公开(公告)号：US5237657A
公开(公告)日：1993-08-17
申请号：US782880
申请日：1991-10-17
申请人： James B. Pearman , David J. Hedley
发明人： James B. Pearman , David J. Hedley
IPC分类号： G06F3/033 , G06F3/048 , G06T17/40 , H04N5/222 , H04N5/262
CPC分类号： H04N5/262 , G06F3/04845 , G11B27/034 , H04N5/222
摘要： Apparatus for manipulating a picture (P1) represented by a video signal (V1) includes a picture manipulator (16R, 16G, 16B, 18R, 18G, 18B) responsive to data representing a desired manipulation to manipulate the picture by changing at least one geometrical parameter thereof. The picture manipulator is controlled by a computer (40) that comprises a keyboard 48 and track ball assembly (50) for entering command information indicative of how the picture is to be manipulated. The computer (40) incorporates processing software that enables the computer to act as processor means responsive to the command information to generate the data representing a desired manipulation. The computer (40) has a VDU (42) and incorporates display software responsive to the command information to cause the VDU to display a frame which is subjected to the same manipulation as that desired for the picture. The computer (40) is selectively connectable to the picture manipulator such that the computer can be used on-line to generate the data and supply it to the manipulator, to control the manipulator, or can be used off-line to generate the data.
摘要翻译：用于操纵由视频信号（V1）表示的图像（P1）的装置包括图像操纵器（16R，16G，16B，18R，18G，18B），响应于表示期望操作的数据来操纵图像，该图像操纵器通过改变至少一个几何参数。图像操纵器由计算机（40）控制，计算机（40）包括用于输入指示如何操纵图像的命令信息的键盘48和轨迹球组件（50）。计算机（40）包含处理软件，其使得计算机能够充当响应于命令信息的处理器装置，以产生表示期望操作的数据。计算机（40）具有VDU（42）并且响应于命令信息并入显示软件以使VDU显示经受与图像所需的相同操作的帧。计算机（40）可选择性地连接到图像操纵器，使得计算机可以在线使用以产生数据并将其提供给操纵器，以控制操纵器，或者可以离线地使用以产生数据。

10. 发明授权

US4953107A Video signal processing 失效
标题翻译：视频信号处理
公开(公告)号：US4953107A
公开(公告)日：1990-08-28
申请号：US401555
申请日：1989-08-28
申请人： David J. Hedley , John W. Richards
发明人： David J. Hedley , John W. Richards
IPC分类号： G06T1/00 , G06T3/00 , G06T13/20 , G06T15/00 , G06T19/00 , G09B9/30 , H04N5/262
CPC分类号： H04N5/2628 , G06T19/20 , G09B9/30 , G06T2219/2016 , Y10S345/953
摘要： Apparatus for generating an image for digital scene simulation, the apparatus comprising a first store for storing address data defining the three-dimensional shape of an object, a second store for storing video data defining the two-dimensional surface detail of the object, a matrix circuit for manipulating the address data to move the object (by translating it, changing its orientation, or both translating it and changing its orientation), a perspective transformation device for perspective tansforming the manipulated address data to form transformed address data defining a two-dimensional image of the object after the manipulation, and a third store in which the video data is written, under control of the transformed address data, in the form of output video data defining a two-dimensional image of the object after the manipulation and with the surface detail.
摘要翻译：一种用于生成用于数字场景模拟的图像的装置，该装置包括用于存储定义对象的三维形状的地址数据的第一存储器，用于存储定义对象的二维表面细节的视频数据的第二存储器，矩阵用于操纵地址数据以移动对象的电路（通过翻译它，改变其方向，或者翻译它，并且改变其方向），透视变换装置，用于透视变形装置，用于形成被操纵的地址数据，以形成定义二维的变换的地址数据在操作之后的对象的图像，以及在变换的地址数据的控制下写入视频数据的第三个存储器，以在操作之后定义对象的二维图像的输出视频数据的形式，表面细节。

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