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81. 发明公开

EP0808065A3 Video matrix address decoder 失效
标题翻译：视频矩阵解码器地址
公开(公告)号：EP0808065A3
公开(公告)日：1999-12-22
申请号：EP97302381.5
申请日：1997-04-07
申请人： International Business Machines Corporation
发明人： Caci, Joseph Claude
IPC分类号： H04N7/26
CPC分类号： G06T9/008 , H04N19/50 , H04N19/507
摘要： A video decoder for receiving compressed, weighted, and encoded input video data in matrix form. The video data is produced from the original difference vector of each pel and transmitted as a bitstream including compressed pel data word descriptor. The video decoder reconstitutes the bitstream into matrix format and calculates individual pel values. The decoder includes capability for restoring the original modulo of the pel data word descriptor and restoring the associated address of each pel in the matrix.

82. 发明授权

EP0588653B1 Image data coding and restoring method and apparatus for restoring the same 失效
标题翻译：用于恢复图像数据的方法和装置
公开(公告)号：EP0588653B1
公开(公告)日：1999-12-22
申请号：EP93307344.7
申请日：1993-09-16
申请人： FUJITSU LIMITED
发明人： Murashita, Kimitaka, c/o Fujitsu Limited , Noda, Tsugio, c/o Fujitsu Limited
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N9/8047 , H04N9/8042 , H04N19/107 , H04N19/124 , H04N19/126 , H04N19/132 , H04N19/503 , H04N19/507 , H04N19/587 , H04N19/60 , H04N19/61 , H04N19/70

83. 发明公开

EP0925689A1 OBJECT-ORIENTED VIDEO SYSTEM 失效
标题翻译：面向对象视频系统
公开(公告)号：EP0925689A1
公开(公告)日：1999-06-30
申请号：EP97939103.0
申请日：1997-09-12
申请人： UNIVERSITY OF BATH
发明人： MONRO, Donald, Martin , NICHOLLS, Jeremy, Andrew
IPC分类号： G06T9 , H04N7
CPC分类号： H04N19/88 , H04N19/132 , H04N19/152 , H04N19/176 , H04N19/18 , H04N19/23 , H04N19/37 , H04N19/50 , H04N19/503 , H04N19/507 , H04N19/59 , H04N19/96 , H04N19/99
摘要： An object-oriented video system is implemented as a two layer object model in a software-only video compressor. Quadtree decomposition on an error metric between the input and transmitted images directs the coder towards a foreground layer of active image fragments. A rate buffering system limits the bandwidth by transmitting only the foreground blocks which most improve the image and are above some error threshold. A high fidelity background layer is identified and communicated to the decoder, which can be used to redraw background fragments as foreground objects move across them. Blocks can be coded by various methods, such as fractal transforms or truncated DCTs. The system can be implemented in RISC processors without the need for dedicated hardware. It is suitable for low bit rate applications with slowly varying backgrounds, such as personal video communications over packet networks, or closed circuit TV surveillance.

84. 发明授权

EP0573648B1 TV SIGNAL PROCESSING DEVICE 失效
标题翻译：电视信号处理装置
公开(公告)号：EP0573648B1
公开(公告)日：1999-06-30
申请号：EP89911397.1
申请日：1989-10-13
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： HIRASHIMA, Masayoshi
IPC分类号： H04N7/12 , H04N7/08
CPC分类号： H04N19/00 , H04N7/08 , H04N7/085 , H04N7/088 , H04N7/122 , H04N7/169 , H04N7/171 , H04N19/503 , H04N19/507 , H04N19/593

85. 发明公开

EP0893923A1 Video communication system 失效
标题翻译： Videokommunikationssystem
公开(公告)号：EP0893923A1
公开(公告)日：1999-01-27
申请号：EP97401772.5
申请日：1997-07-23
申请人： TEXAS INSTRUMENTS FRANCE
发明人： Thomas, David, Richard
IPC分类号： H04N7/26
CPC分类号： H04N21/4341 , H04N19/20 , H04N19/503 , H04N19/507 , H04N19/61 , H04N19/82 , H04N21/23418 , H04N21/2368 , H04N21/4223 , H04N21/4307 , H04N21/4394 , H04N21/44
摘要： The present invention provides a video communication system 100 and a method for operating a video communication system 100. An event is monitored with a video camera 112' to generate a sequence of frames of a video image. Video data is selected only from those regions of the video image in which motion exceeds a predetermined level. The selected video data and audio data corresponding to each frame of the video image are compressed before a signal comprising the compressed video data and the compressed audio data is generated and transmitted to a receiver 111''. The receiver 111'' decompresses the received signal to produce audio data and a first portion of said video data. A second portion of the video data for regions of a current frame of the video image that differ from a preceding frame of the video image is predicted from the decompressed audio data. The first and second portions of said video data are then combined to generate a display video image.
摘要翻译：本发明提供了一种视频通信系统100和一种用于操作视频通信系统100的方法。用摄像机112'监视事件以产生视频图像的帧序列。视频数据仅从运动超过预定水平的视频图像的区域中选择。在产生包括压缩视频数据和压缩音频数据的信号并将其发送到接收机111“之前，对与视频图像的每个帧相对应的所选择的视频数据和音频数据进行压缩。接收机111“解压接收的信号以产生音频数据和所述视频数据的第一部分。从解压缩的音频数据预测视频图像的与视频图像的前一帧不同的当前帧的区域的视频数据的第二部分。然后组合所述视频数据的第一和第二部分以产生显示视频图像。

86. 发明公开

EP0734172A2 Television signal processor 失效
标题翻译：电视信号处理器
公开(公告)号：EP0734172A2
公开(公告)日：1996-09-25
申请号：EP96108123.9
申请日：1989-10-13
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Hirashima, Masayoshi
IPC分类号： H04N7/26
CPC分类号： H04N19/00 , H04N7/08 , H04N7/085 , H04N7/088 , H04N7/122 , H04N7/169 , H04N7/171 , H04N19/503 , H04N19/507 , H04N19/593
摘要： A device which processes a television signal for transmission in which the television signal is divided into horizontal scanning line units, video signals in two consecutive horizontal scanning periods are compared, and when either part or all of these two signals differ, transmits by means of a television signal transmitter (3,4,7A,7B) only the video signal Vx for that part of the signals which is different, and which uses said transmitted television signal in the television signal receiver (25,26,27,28) to reproduce a complete video signal with all horizontal scanning periods by calculating, mixing, overlaying, or replacing video signal Vx for either part or all of the video signal Vn-1 for the one preceding horizontal scanning period.
Furthermore, a code signal indicating the position of video signal Vx is included in the field or the horizontal scanning line.
摘要翻译：其处理用于传输的电视信号，其中所述电视信号被分成水平扫描线单元的装置，其在两个连续的水平扫描期间的视频信号进行比较，并当任一部分或全部这两个信号的不同，由一个装置发送电视信号发射器（3,4,7A，7B）仅视频信号Vx为是不同的信号的那部分，以及使用所述的电视信号接收机传输的电视信号（25,26,27,28），以重现通过计算，混合，叠加或替换用于前一个水平扫描周期的视频信号Vn-1的部分或全部的视频信号Vx而具有所有水平扫描周期的完整视频信号。此外，表示视频信号Vx的位置的代码信号被包括在场或水平扫描行中。

87. 发明公开

EP0660609A2 Remote display of an image by transmitting compressed video frames representing background and overlay portions thereof 失效
标题翻译：由表示其背景，其叠加前景压缩视频帧的传送的图像的远程显示。
公开(公告)号：EP0660609A2
公开(公告)日：1995-06-28
申请号：EP94118924.3
申请日：1994-12-01
申请人： DIGITAL EQUIPMENT CORPORATION
发明人： Hooper, Donald F. , Tongel, David M.
IPC分类号： H04N7/173 , H04N7/24 , G06T9/00 , H04N7/50 , G06F3/14
CPC分类号： H04N7/17318 , H04N5/4401 , H04N5/45 , H04N19/20 , H04N19/23 , H04N19/503 , H04N19/507 , H04N19/61 , H04N21/4351 , H04N21/8166
摘要： An interactive video system employs Motion Picture Expert Group (MPEG) video compression to transfer images from a remote server to a television. The images correspond to dialog frames in a graphical user interface. During an authoring process, the dialog frames are created by first creating a background image and then adding foreground elements, such as buttons. A set of MPEG video frames is created by encoding the resulting images according to the MPEG algorithm. The MPEG video frames are delivered to the television in sequence, where an MPEG decoder uses them to reconstruct the dialog images that are subsequently displayed. The system also contains an object-oriented database that maintains the necessary MPEG file ordering and also carries out menu navigation commands received from the user. The object classes include NODE, BRANCH, and DISPLAY. NODE objects correspond to dialog frames, and BRANCH objects correspond to user-selectable features such as buttons. DISPLAY objects correspond to either complete or partial images, as described in corresponding MPEG files. Data and function elements within the objects allow the system to track the user's navigation commands, and to highlight and unhighlight selectable features as navigation proceeds in order to provide visual feedback to the user.
摘要翻译：交互式视频系统采用运动图像专家组（MPEG）视频压缩以从远程服务器的图像传送到电视机。该图像对应于对话的帧中的图形用户界面。如按钮：在在创作的过程中，对话帧被首先创建一个背景图像，然后加入前景元素，颜色创建。一组MPEG视频帧通过编码gemäß到MPEG算法所得到的图像创建的。该MPEG视频帧序列，其中以MPEG解码器使用它们来重建对话所做的图像随后显示传送到电视。因此，该系统包含面向对象的数据库上确实维持必要的MPEG文件排序，因此执行从用户接收到的菜单导航命令。的对象类包括NODE，BRANCH和显示。 NODE对象对应于对话的帧，和BRANCH对象对应于用户可选特征：诸如按钮。

88. 发明公开

EP0634074A1 METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING A SEQUENCE OF DIGITAL VIDEO IMAGES USING SYNC FRAMES 失效
标题翻译：方法和设备进行同步的同时，在数字视频的压缩和解压缩系列。
公开(公告)号：EP0634074A1
公开(公告)日：1995-01-18
申请号：EP93908460.0
申请日：1993-03-19
申请人： INTEL CORPORATION
发明人： KEITH, Michael , GOLDSTEIN, Judith
IPC分类号： H04N7
CPC分类号： H04N7/56 , H04N19/00 , H04N19/507 , H04N19/587 , H04N19/94
摘要： A method and apparatus for compressing a sequence of digital video images using sync frames is disclosed. The decoder determines a first number representing the actual number of frames already present in the bitstream. A second number representing the desired number of frames in the bitstream is compared to the first number. If the second number exceeds the first number, at least one sync frame is inserted into the bitstream.

89. 发明公开

EP0577377A3 Image processing apparatus and method, and system thereof 失效
标题翻译：图像处理装置及其方法及系统
公开(公告)号：EP0577377A3
公开(公告)日：1994-08-31
申请号：EP93305051.0
申请日：1993-06-28
申请人： CANON KABUSHIKI KAISHA
发明人： Suzuki, Shigeo, c/o Canon Kabushiki Kaisha
IPC分类号： H04N7/13 , H04N7/137
CPC分类号： H04N7/54 , H04N5/9264 , H04N19/10 , H04N19/132 , H04N19/503 , H04N19/507 , H04N19/587 , H04N21/4325 , H04N21/4334 , H04N21/44008
摘要： An image processing system determines a characteristic of a moving picture, when moving-picture information is compressed, by comparing the contents of contiguous frames comprising the moving picture. The characteristic can be such that the background is not moving, but a part of the picture is moving. A compression method is selected in accordance with the characteristic and used to compress the image data. The compressed data includes the image data and information for designating the procedure to expand the image data. When the receiver receives the compressed image data, data expansion processing is performed based on the information indicating the compression procedure. Since the image processing system compresses the image by the compression procedure best suited to the characteristic of the image, information is not lost and efficient compression can be performed.

90. 发明公开

EP0555016A2 Dynamic bit allocation for three-dimensional subband video coding 失效
标题翻译： Dynamische Bitverteilungfürdreidimensionale Teilbandbildkodierung。
公开(公告)号：EP0555016A2
公开(公告)日：1993-08-11
申请号：EP93300630.6
申请日：1993-01-28
申请人： AT&T Corp.
发明人： Hartung, John , Jacquin, Arnaud E. , Michel, Thomas Andrew , Podilchuk, Christine Irene
IPC分类号： H04N7/13
CPC分类号： H04N19/507 , H04N19/10 , H04N19/115 , H04N19/117 , H04N19/126 , H04N19/132 , H04N19/14 , H04N19/146 , H04N19/152 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/186 , H04N19/192 , H04N19/30 , H04N19/44 , H04N19/46 , H04N19/60 , H04N19/61 , H04N19/62 , H04N19/63 , H04N19/94
摘要： The present invention provides a method of coding a set of multi-level signals, such as video signals. The method comprises filtering (in 300) the set of multi-level signals into one or more sets of multi-level sub-band signals; allocating (in 320) a first quantity of bits for use in coding a first set of sub-band signals; coding (in 310i) the first set of multi-level sub-band signals using zero or more of the first quantity of allocated bits; allocating (in 320) a second quantity of bits for use in coding a second set of sub-band signals, the second quantity of bits comprising zero or more of the first quantity of bits not used in coding the first set of multi-level sub-band signals; and coding (in 310i) the second set of multi-level sub-band signals using zero or more of the second quantity of allocated bits. Three examples of the method are provided. A hardware implementation involving the use of digital signal processors operating in parallel is also provided.
摘要翻译：本发明提供了对诸如视频信号的多级信号进行编码的方法。该方法包括将该多组信号集合（在300中）滤波为一组或多组多电平子带信号; 分配（320）第一数量的比特，用于对第一组子带信号进行编码; 使用零个或更多个第一数量的分配比特来编码（在310i中）第一组多电平子带信号; 分配（320）第二数量的比特，用于对第二组子带信号进行编码，所述第二数量的比特包括在编码第一组多级子帧时不使用的第一比特量的零个或多个带信号; 并且使用第二数量的分配比特中的零个或更多个来编码（在310i中）第二组多电平子带信号。提供了该方法的三个实例。还提供了涉及使用并行操作的数字信号处理器的硬件实现。

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