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1.发明授权Apparatus and method for motion compensating video signals to produce interpolated video signals 失效用于运动补偿视频信号以产生内插视频信号的装置和方法
公开(公告)号：US5600377A
公开(公告)日：1997-02-04
申请号：US118239
申请日：1993-09-09
CPC分类号： H04N7/014 , H04N5/145 , H04N7/0125
摘要： Motion compensated video signal processing apparatus comprises a subsampler for horizontally subsampling an input digital video signal, to generate a subsampled video signal; a motion vector processor for generating motion vectors from the subsampled video signal; and a motion compensated video processor for processing the input digital video signal according to the motion vectors, to generate an output digital video signal.
摘要翻译： 运动补偿视频信号处理装置包括用于对输入数字视频信号进行水平子采样的子采样器，以产生子采样视频信号; 运动矢量处理器，用于从所述子采样视频信号产生运动矢量; 以及用于根据运动矢量处理输入数字视频信号的运动补偿视频处理器，以产生输出数字视频信号。
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2.发明授权Method for processing a digital video signal having portions acquired with different acquisition characteristics 失效用于处理具有以不同获取特征获得的部分的数字视频信号的方法
公开(公告)号：US5355169A
公开(公告)日：1994-10-11
申请号：US031109
申请日：1993-03-12
摘要： An input digital video signal representing a series of input frames with at least some of the input frames each having a first picture portion having a first acquisition characteristic (such as 60 Hz, 2:1) and a second picture portion having a second acquisition characteristic (such as 30 Hz, 1:1) is processed to produce an output video signal representing a series of output frames having generally the same acquisition characteristic (such as 24 Hz, 1:1). The method comprises the steps of distinguishing between the first and second picture portions in the input frames (for example by determining the difference between input fields (a.sub.1, a.sub.2 ; a.sub.3, a.sub.4 ; . . . ) of a pair, or by detecting a key signal accompanying the input video signal) and processing the first and second picture portions differently to produce the output frames.
摘要翻译： 一种输入数字视频信号，其表示一系列输入帧，其中至少一些输入帧具有第一图像部分，该第一图像部分具有第一获取特性（例如60Hz，2:1）和具有第二捕获特性的第二图像部分 （例如30Hz，1：1）被处理以产生表示一般具有相同采集特性（例如24Hz，1：1）的一系列输出帧的输出视频信号。 该方法包括以下步骤：区分输入帧中的第一和第二图像部分（例如，通过确定一对的输入字段（a1，a2，a3，a4，...）之间的差异，或通过检测一个键 伴随输入视频信号的信号），并且不同地处理第一和第二图像部分以产生输出帧。
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公开(公告)号：US5392071A
公开(公告)日：1995-02-21
申请号：US31902
申请日：1993-03-16
IPC分类号： H04N5/14 , G06T9/00 , H04N5/262 , H04N5/272 , H04N5/46 , H04N5/84 , H04N5/926 , H04N5/937 , H04N7/12 , H04N7/26 , H04N11/20 , H04N11/04
CPC分类号： H04N7/12 , H04N19/63 , H04N5/262 , H04N5/272 , H04N5/926 , H04N5/937 , H04N19/30 , H04N5/843
摘要： Image processing apparatus is described in which a source stream of data captured by a particular source is passed through a data splitter where it is split using one splitting technique into a plurality of split streams of data. These split streams of data each contain only part of the information within the source stream of data. The split streams of data are separately manipulated by a post production unit prior to being passed through a data combiner where they are recombined to form an output stream of data. The source stream of data and the output stream of data are of a higher resolution than the individual split streams of data. The post production unit includes at least one reformatter for reformatting the data stream to use a different splitting technique matched to the manipulation being performed in the post production unit.
摘要翻译： 描述了图像处理装置，其中由特定源捕获的源数据流通过数据分离器，其中使用一个分割技术将数据分离器分割成多个分离的数据流。 这些分离的数据流每个只包含源数据源中的部分信息。 分割的数据流在被传送通过数据组合器之前被后期制作单元分开操作，在这些数据组合器中它们被重新组合以形成输出的数据流。 数据的源流和数据的输出流具有比单独的分离数据流更高的分辨率。 后期制作单元包括至少一个重新格式化的重新格式化数据流以使用与在后期制作单元中执行的操作相匹配的不同的分割技术。
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4.发明授权Image signal processing with digital filtering to minimize aliasing caused by image manipulation 失效使用数字滤波进行图像信号处理，以最小化图像处理所造成的干扰
公开(公告)号：US5206919A
公开(公告)日：1993-04-27
申请号：US690579
申请日：1991-04-24
申请人： Stephen M. Keating
发明人： Stephen M. Keating
CPC分类号： G06T3/00 , H04N5/2628
摘要： An image signal processing apparatus has an address generator that generates addresses for successive words of a digital input signal representing an input image to be manipulated. A computation circuit monitors the addresses for successive word sets which each comprise first and second words relatively horizontally spaced in the input image and a third word aligned vertically with the second word, and computes from each set both horizontal and vertical local scaling factors representing the extent of compression in the horizontal and vertical directions of a corresponding local area of the manipulated image. A bandwidth controller is responsive to the successive scaling factors to vary the horizontal and vertical bandwidths of a digital filter which two-dimensionally filters the input image, thereby to minimize aliasing that would be caused by the manipulation of the local areas. The computation circuit computes the scaling factors for each local area such that the horizontal factor corresponds to the length of a line that extends perpendicularly from a line passing through the positions of the second and third words in the manipulated image to the position of the first word and the vertical factor corresponds to the length of a line that extends perpendicularly from a line passing through the positions of the first and second words to the position of the third word.
摘要翻译： 图像信号处理装置具有地址发生器，该地址发生器产生表示要被操纵的输入图像的数字输入信号的连续字的地址。 计算电路监视连续字集的地址，每个字组包括在输入图像中相对水平间隔的第一和第二字，以及与第二字垂直排列的第三字，并且从每个集合计算表示该范围的水平和垂直局部缩放因子 在受控图像的相应局部区域的水平和垂直方向上的压缩。 带宽控制器响应于连续的缩放因子以改变对输入图像进行二维滤波的数字滤波器的水平和垂直带宽，从而最小化由局部区域的操纵引起的混叠。 计算电路计算每个局部区域的缩放因子，使得水平因子对应于从经过被操纵的图像中的第二和第三个字的位置垂直延伸到第一个字的位置的线的长度 并且垂直因子对应于从通过第一和第二词的位置到第三个词的位置的线垂直延伸的线的长度。
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公开(公告)号：US5363146A
公开(公告)日：1994-11-08
申请号：US18416
申请日：1993-02-17
CPC分类号： H04N7/014 , H04N19/577 , H04N5/145 , H04N7/0112
摘要： A motion compensation image processing apparatus and method for generating motion vectors that represent image motion between a pair of input images from which an output image is derived by motion compensated interpolation. A plurality of motion vectors are generated for each pixel of the output image and it is determined whether respective test blocks of each of the pair of input images, pointed to by each of the plurality of motion vectors, lie partially outside their respective input images. If one or both of the test blocks lies partially outside its respective input image, the degree of correlation between the test blocks is detected by performing a first correlation test on parts of the test blocks lying inside their respective input images. However, if both of the test blocks lie wholly inside their respective input image, the degree of correlation between the test blocks is detected by performing a second correlation test. The motion vector having the highest degree of correlation between the test blocks is selected for motion compensation interpolation.
摘要翻译： 一种用于产生运动矢量的运动补偿图像处理装置和方法，所述运动矢量表示通过运动补偿插值从中导出输出图像的一对输入图像之间的图像运动。 为输出图像的每个像素生成多个运动矢量，并且确定由多个运动矢量中的每一个指向的一对输入图像中的每一个的各个测试块是否部分地位于它们各自的输入图像之外。 如果测试块中的一个或两个部分位于其相应的输入图像之外，则通过对位于它们各自输入图像内的测试块的部分执行第一相关测试来检测测试块之间的相关程度。 然而，如果两个测试块完全在其各自的输入图像内，则通过执行第二相关测试来检测测试块之间的相关程度。 选择测试块之间具有最高相关度的运动矢量用于运动补偿内插。
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公开(公告)号：US5347312A
公开(公告)日：1994-09-13
申请号：US988440
申请日：1992-12-09
摘要： Pairs of temporally adjacent input images are interpolated to produce motion compensated images using motion vectors generated from said but not all of the pairs of input images from which the output images are interpolated.
摘要翻译： 对时间上相邻的输入图像进行内插，以使用从所述输出图像的所述输入图像的所述但不是全部的对生成的运动矢量来产生运动补偿图像，输出图像被插值。
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7.发明授权Method and apparatus for processing an input 60 field/second video signal generated by 3232 pulldown to produce an output video signal 失效用于处理由3232下拉生成的输入60场/第二视频信号以产生输出视频信号的方法和装置
公开(公告)号：US5446497A
公开(公告)日：1995-08-29
申请号：US129360
申请日：1993-09-30
IPC分类号： H04N5/7826 , H04N5/91 , H04N7/01 , H04N9/79
CPC分类号： H04N7/0112 , Y10S348/911
摘要： A method of processing an input 60 field/second video signal generated by 3232 pulldown to produce an output video signal, comprises producing from the input signal a series of progressive scan format frames, each frame corresponding to a respective one of the input fields, and comparing blocks of pixels in each progressive scan frame with blocks of pixels in the following frame to derive motion vectors representing the motion of the content of respective blocks between frames. The motion vectors are utilized to monitor the field sequence of the input signal, and fields or frames of the output video signal are produced using input fields or progressive scan frames selected in dependence upon the field sequence of the input signal, at least some of the output fields or frames being produced by motion compensated temporal interpolation utilizing the motion vectors.
摘要翻译： 一种处理由3232下拉产生的输入60场/第二视频信号以产生输出视频信号的方法，包括从输入信号产生一系列逐行扫描格式帧，每个帧对应于相应的一个输入场，以及 将每个逐行扫描帧中的像素块与随后帧中的像素块进行比较，以导出表示帧之间相应块的内容的运动的运动矢量。 使用运动矢量来监视输入信号的场序列，并且使用根据输入信号的场序列选择的输入场或逐行扫描帧产生输出视频信号的场或帧，至少一些 通过使用运动矢量的运动补偿时间插值产生的输出场或帧。
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公开(公告)号：US5125048A
公开(公告)日：1992-06-23
申请号：US482050
申请日：1990-02-20
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。
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公开(公告)号：US5303045A
公开(公告)日：1994-04-12
申请号：US933932
申请日：1992-08-24
IPC分类号： H04N7/01
CPC分类号： H04N7/014 , H04N7/0102
摘要： An input digital video signal is converted to an output digital video signal having a different frame rate and a different number of pixel lines per frame. A first series of progressive scan format frames is formed from the input signal. Then a second series of frames is formed from the first series of frames using motion compensated temporal interpolation between successive frames of the first series in producing at least some of the frames of the second series so as to provide the difference in frame rate. Before or after the second series of frames is formed, vertical spatial interpolation is performed so as to provide the difference in the number of pixel lines per frame.
摘要翻译： 输入数字视频信号被转换为具有不同帧速率和每帧不同数量像素行的输出数字视频信号。 从输入信号形成第一系列逐行扫描格式帧。 然后，使用第一系列的连续帧之间的运动补偿时间插值从第一系列的帧形成第二系列的帧，以产生第二系列的至少一些帧，以便提供帧速率的差异。 在形成第二系列帧之前或之后，执行垂直空间插值，以提供每帧的像素线数量的差异。
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公开(公告)号：US5208875A
公开(公告)日：1993-05-04
申请号：US883044
申请日：1992-05-07
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。
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