公开(公告)号：US5329365A

公开(公告)日：1994-07-12

申请号：US88475

申请日：1993-07-07

申请人： Kamil M. Uz

发明人： Kamil M. Uz

IPC分类号： H04N5/92 ,  G06T9/00 ,  H04N7/12 ,  H04N7/26 ,  H04N7/32 ,  H04N7/46 ,  H04N7/04

CPC分类号： H04N19/37 ,  H04N19/577 ,  H04N19/587

摘要： A compression/decompression system includes a source of (1:1 60 Hz) non-interlaced scanned video signal. A preprocessor constructs (2:1 60 Hz) interlaced scanned video signal from the non-interlaced scanned video signal by selection of alternate lines of successive non-interlaced image signals. The interlaced scanned video signal is compressed according to an MPEG protocol of I, P and B frame compression algorithms. I, P and B frame compression is performed such that there are an odd number, greater than one, of B-frames between successive I/P frames (for example the sequence of compressed frames may conform to I, B1, B2, B3, P, B1, B2, B3, P, B1, B2, B3, I, B1, . . . etc). The I compressed frames, the P compressed frames and alternate B compressed frames (the frames B2 in the exemplary sequence) selectively form a primary compressed (2:1 30 Hz) interlaced video signal for reproduction by interlaced scanned receivers. The intervening B-frames selectively form a secondary compressed video. The primary and secondary compressed video signals are received by non-interlaced scanned receivers for reproducing non-interlaced scanned images, while the primary signal alone may be reproduced by interlaced scanned receivers.

摘要翻译： 压缩/解压缩系统包括（1：110Hz）非隔行扫描视频信号源。 通过选择连续的非隔行图像信号的交替行，预处理器构造（2：110Hz）隔行扫描视频信号从非隔行扫描视频信号。 隔行扫描视频信号根据I，P和B帧压缩算法的MPEG协议进行压缩。 执行I，P和B帧压缩，使得在连续I / P帧之间存在大于一个B帧的奇数（例如，压缩帧的序列可以符合I，B1，B2，B3， P，B1，B2，B3，P，B1，B2，B3，I，B1，...等）。 I压缩帧，P压缩帧和备用B压缩帧（示例性序列中的帧B2）选择性地形成用于通过隔行扫描的接收机再现的主压缩（2：1 30Hz）隔行视频信号。 插入的B帧选择性地形成二次压缩视频。 初级和次级压缩视频信号由非隔行扫描接收机接收，用于再现非隔行扫描图像，而单独的主信号可以由隔行扫描的接收机再现。

公开(公告)号：US5267021A

公开(公告)日：1993-11-30

申请号：US862979

申请日：1992-04-03

申请人： Kannan Ramchandran ,  Kamil M. Uz ,  Martin F. Vetterli

发明人： Kannan Ramchandran ,  Kamil M. Uz ,  Martin F. Vetterli

IPC分类号： H04L27/34 ,  H04N11/04 ,  H04N11/24 ,  H04N19/89 ,  H04N21/2383 ,  H04N21/438 ,  H04N11/06 ,  H04N5/38

CPC分类号： H04N21/2383 ,  H04L27/3488 ,  H04N11/008 ,  H04N11/044 ,  H04N19/587 ,  H04N19/89 ,  H04N21/4382 ,  H04N19/30

摘要： In a digital TV broadcast system, an embedded multiresolution scheme implementing joint source/channel coding is employed to offer at least relatively fine and relatively coarse resolution services. The relatively fine resolution service is intended for receivers within a first radius of a TV signal transmitter and the relatively coarse resolution service is intended for receivers between the first radius and a second, longer radius thereof. Video signals broadcast from the transmitter represent individual signal points which are selected from a signal constellation. The latter comprises signal-point groups each including a multiplicity of the signal points. The selected signal points represent video images in the relatively fine resolution, while the signal-point groups from which the selected signal points originate represent the relatively coarse version of the images. The relative length of the first radius to the second radius is a function of the ratio of the interdistance of two neighboring signal points within a signal-point group to the interdistance of two neighboring signal-point groups in the signal constellation.

摘要翻译： 在数字电视广播系统中，采用实现联合源/信道编码的嵌入式多分辨率方案来提供至少相对精细和相对粗略的分辨率服务。 相对精细的分辨率服务旨在用于TV信号发射器的第一半径内的接收机，并且相对粗略的分辨率服务旨在用于第一半径与第二半径之间的接收器。 从发射机广播的视频信号表示从信号星座中选出的各个信号点。 后者包括各自包括多个信号点的信号点组。 所选择的信号点表示相对精细分辨率的视频图像，而所选信号点来自的信号点组表示图像的相对粗略的版本。 第一半径相对于第二半径的相对长度是信号点组内的两个相邻信号点的相互间距与信号星座中两个相邻信号点组之间的间隔的比率的函数。

公开(公告)号：US5442400A

公开(公告)日：1995-08-15

申请号：US53760

申请日：1993-04-29

申请人： Huifang Sun ,  Joel W. Zdepski ,  Kamil M. Uz

发明人： Huifang Sun ,  Joel W. Zdepski ,  Kamil M. Uz

IPC分类号： G06T9/00 ,  H04N5/44 ,  H04N7/36 ,  H04N7/50 ,  H04N19/895 ,  H04N7/64 ,  H04N7/66

CPC分类号： H04N19/00 ,  H04N19/51 ,  H04N19/61 ,  H04N19/895 ,  H04N19/70 ,  H04N5/4401

摘要： A video signal compression system includes motion compensated predictive compression apparatus for compressing respective frames of video signal according to either intraframe processing or interframe processing on a block by block basis to generate blocks of compressed data and associated motion vectors. A compressed signal formatter arranges the blocks of compressed data and the associated motion vectors according to a desired signal protocol wherein motion vectors of interframe processed frames are associated with corresponding blocks of compressed data and motion vectors of intraframe processed frames are associated with blocks substantially adjacent to corresponding blocks of compressed data. The motion vectors are included with intraframe compressed data to facilitate error concealment at respective receiver apparatus.

摘要翻译： 视频信号压缩系统包括运动补偿预测压缩装置，用于根据帧内处理或帧间处理逐帧地压缩视频信号的各个帧，以生成压缩数据块和相关联的运动矢量。 压缩信号格式化器根据期望的信号协议排列压缩数据块和相关联的运动矢量，其中帧间处理帧的运动矢量与对应的压缩数据块相关联，并且帧内处理帧的运动矢量与基本相邻的块相关联 对应的压缩数据块。 运动矢量被包括在帧内压缩数据中，以便于在各个接收机设备处的错误隐藏。

公开(公告)号：US5410354A

公开(公告)日：1995-04-25

申请号：US214739

申请日：1994-03-17

申请人： Kamil M. Uz

发明人： Kamil M. Uz

IPC分类号： H04N5/92 ,  G06T9/00 ,  H04N7/12 ,  H04N7/26 ,  H04N7/32 ,  H04N7/46

CPC分类号： H04N19/37 ,  H04N19/577 ,  H04N19/587

摘要： A compression/decompression system includes a source of (1:1 60 Hz) non-interlaced scanned video signal. A preprocessor constructs (2:1 60 Hz) interlaced scanned video signal from the non-interlaced scanned video signal by selection of alternate lines of successive non-interlaced image signals. The interlaced scanned video signal is compressed according to an MPEG protocol of I, P and B frame compression algorithms. I, P and B frame compression is performed such that there are an odd number, greater than one, of B-frames between successive I/P frames (for example the sequence of compressed frames may conform to I, B1, B2, B3, P, B1, B2, B3, P, B1, B2, B3, I, B1, . . . etc). The I compressed frames, the P compressed frames and alternate B compressed frames (the frames B2 in the exemplary sequence) selectively form a primary compressed (2:1 30 Hz) interlaced video signal for reproduction by interlaced scanned receivers. The intervening B-frames selectively form a secondary compressed video. The primary and secondary compressed video signals are received by non-interlaced scanned receivers for reproducing non-interlaced scanned images, while the primary signal alone may be reproduced by interlaced scanned receivers.

摘要翻译： 压缩/解压缩系统包括（1：110Hz）非隔行扫描视频信号源。 通过选择连续的非隔行图像信号的交替行，预处理器构造（2：110Hz）隔行扫描视频信号从非隔行扫描视频信号。 隔行扫描视频信号根据I，P和B帧压缩算法的MPEG协议进行压缩。 执行I，P和B帧压缩，使得在连续I / P帧之间存在大于一个B帧的奇数（例如，压缩帧的序列可以符合I，B1，B2，B3， P，B1，B2，B3，P，B1，B2，B3，I，B1，...等）。 I压缩帧，P压缩帧和备用B压缩帧（示例性序列中的帧B2）选择性地形成用于通过隔行扫描的接收机再现的主压缩（2：1 30Hz）隔行视频信号。 插入的B帧选择性地形成二次压缩视频。 初级和次级压缩视频信号由非隔行扫描接收机接收，用于再现非隔行扫描图像，而单独的主信号可以由隔行扫描的接收机再现。

公开(公告)号：US5253041A

公开(公告)日：1993-10-12

申请号：US888581

申请日：1992-05-26

申请人： Charles M. Wine ,  Glenn A. Reitmeier ,  Kamil M. Uz

发明人： Charles M. Wine ,  Glenn A. Reitmeier ,  Kamil M. Uz

IPC分类号： H04N11/02 ,  H04N7/01 ,  H04N7/26 ,  H04N7/46 ,  H04N11/04 ,  H04N11/20

CPC分类号： H04N11/042 ,  H04N19/186 ,  H04N19/59 ,  H04N19/85

摘要： A preprocessor for conditioning interlace-scan video signals for frame based compression, includes apparatus to accept fields of interlace-scanned video and provide fields of interlace-scanned luminance and chrominance component signals. The fields of interlace-scanned luminance component are combined into respective frames of luminance signal and applied to compressor apparatus for further processing. The fields of interlace scanned chrominance components are independently processed at the field level to generate lines of chrominance values which are interstitial to the lines of the original chrominance values and at a lesser pixel and line density. The independently processed fields of interlace-scanned chrominance signals are combined into respective frames of chrominance component signals and applied to compressor circuitry for further processing. Performing the chrominance signal interpolation and subsampling at the field level tends to eliminate a majority of color distortions around moving images. Receiver apparatus is configured to perform post decompression processing to generate frame data having the original pixel and line density.

摘要翻译： 用于对用于基于帧的压缩的隔行扫描视频信号进行调理的预处理器包括接收隔行扫描视频的场的装置，并提供隔行扫描的亮度和色度分量信号的场。 隔行扫描亮度分量的场合被合并到相应的亮度信号帧中，并应用于压缩机装置进一步处理。 交错扫描色度分量的场在场级独立地进行处理，以生成与原始色度值的线间隔的色度值线，并以较小的像素和线密度生成行。 隔行扫描色度信号的独立处理场被组合成相应的色度分量信号帧，并被应用于压缩器电路进一步处理。 在场级执行色度信号插值和子采样趋向于消除运动图像周围的大部分颜色失真。 接收机装置被配置为执行后解压缩处理以产生具有原始像素和线密度的帧数据。