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公开(公告)号：US07043139B1
公开(公告)日：2006-05-09
申请号：US09786691
申请日：1999-08-30
IPC分类号： H04N5/91
CPC分类号： G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B27/34 , G11B2220/216 , G11B2220/2562 , H04N9/8042 , H04N21/8455
摘要： In bitstream recording presentation data is organized into Video Object Units. These have a variable size but have also a variable duration. To allow access to any Video Object Unit in the bitstream a mapping list is used which is based on pieces of the bitstream of constant size per piece. The mapping list additionally contains for each of these pieces a specific delta duration which indicates the difference between the arrival time of the first packet of a piece and the arrival time of the packet following immediately the last packet of that piece, and contains an initialization value which allows to have a share of equal bits between a predetermined amount of MSBs of application time stamps and the same amount of LSBs of the summation of said delta time durations. The computation of the target SOBU address includes accumulating the initialization value and the delta durations until the given time value is most closely reached towards the target SOBU then multiplying the running index of this table entry by the constant piece size directly resulting in the address value to be accessed.
摘要翻译： 在比特流记录中，呈现数据被组织成视频对象单元。 它们具有可变大小，但也具有可变的持续时间。 为了允许访问比特流中的任何视频对象单元，使用基于每片恒定尺寸的比特流的映射列表。 映射列表另外包含每个这些片段的特定增量持续时间，其指示片段的第一分组的到达时间与紧随该片段的最后分组之后的分组的到达时间之间的差异，并且包含初始化值 这允许在预定量的应用时间戳的MSB之间具有相等比特的份额以及所述增量时间持续时间的总和的相同数量的LSB。 目标SOBU地址的计算包括累加初始化值和增量持续时间，直到给定时间值最接近目标SOBU，然后将该表项的运行索引乘以常数块大小直接导致地址值为 被访问。
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12.发明授权Method of making a hierarchical estimate of image motion in a television signal 失效对电视信号中的图像运动进行分层估计的方法
公开(公告)号：US5635994A
公开(公告)日：1997-06-03
申请号：US351585
申请日：1994-12-07
IPC分类号： G06T9/00 , H04N19/523 , H04N19/53 , H04N7/32 , H04N7/50
CPC分类号： H04N19/53 , H04N19/523
摘要： A method of making a hierarchical estimate of image motion for a television signal. A television signal video image is divided into blocks of fixed size, and motion relative to a second video image is determined for each block. Mutually non-overlapping pixel blocks are produced at a lower, more finely resolved hierarchical level. The center points of these blocks are used as the points for an analysis at a level that is located higher in the hierarchy. Preferably, points which lie between image lines and which do not represent real picture elements in the line raster, are investigated in the mutually non-overlapping blocks.
摘要翻译： 对电视信号进行图像运动的分层估计的方法。 电视信号视频图像被分成固定大小的块，并且针对每个块确定相对于第二视频图像的运动。 相互不重叠的像素块以更低，更精细地分层的级别产生。 这些块的中心点用作层次结构中较高层次的分析点。 优选地，在相互不重叠的块中研究位于图像线之间并且不表示线条光栅中的实像元的点。
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公开(公告)号：US4814871A
公开(公告)日：1989-03-21
申请号：US83888
申请日：1987-08-10
IPC分类号： H04N1/41 , H04N19/126 , H04N19/60 , H04N7/12
CPC分类号： H04N19/126 , H04N19/60 , H04N19/124
摘要： A method for the transmission of a video signal, in which the analogue signal is converted into a digital signal and is digitally transmitted. However, before the transmission is transformed into the spectral domain, some portions of the digital signals are variously weighted on the basis of the physiological behavior of the eye. This weighting is performed by coding the signals to be transmitted in their representational accuracy.
摘要翻译： 一种用于传输视频信号的方法，其中模拟信号被转换成数字信号并被数字地传输。 然而，在传输被转换到频域之前，数字信号的一些部分基于眼睛的生理行为被不同地加权。 该加权通过以其表示精度编码要发送的信号来执行。
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14.发明授权Method and apparatus for generating coded picture data and for decoding coded picture data 有权用于产生编码图像数据和解码编码图像数据的方法和装置公开(公告)号：US08259805B2
公开(公告)日：2012-09-04
申请号：US11630020
申请日：2005-05-23
CPC分类号： H04N19/577 , H04N19/51 , H04N19/517 , H04N19/527 , H04N19/533 , H04N19/573
摘要： Motion compensated temporal prediction is well-known for redundancy reduction in video signal compression. A prediction error signal and a motion vector for a current block are transmitted, describing the location of the predictor block in the reference picture. A problem solved by the invention is to encode and decode video signals using less or no mo- tion vector data side information. This is achieved through a temporal prediction which exploits common knowledge available in both encoder and decoder, requiring that the decoder performs a motion estimation, too. A common baseline motion estimation process is used at both encoder and decoder on the same set of video data that have already been compressed before and, hence, are available at both encoder and decoder, leading to identical motion parameters being generated in the decoder. These common motion parameters are used for generating a default temporal prediction without the need to transmit related motion vectors from the encoder to the decoder.
摘要翻译： 运动补偿时间预测是视频信号压缩的冗余减少是众所周知的。 发送用于当前块的预测误差信号和运动矢量，描述参考图像中预测块的位置。 本发明解决的问题是使用较少或没有运动矢量数据侧信息对视频信号进行编码和解码。 这是通过利用编码器和解码器中可用的常见知识的时间预测来实现的，要求解码器也执行运动估计。 在编码器和解码器上的同一组视频数据上使用公共的基线运动估计过程，该集合的视频数据已经在编码器和解码器之前被压缩，并且因此在编码器和解码器处可用，导致在解码器中产生相同的运动参数。 这些常见运动参数用于产生默认时间预测，而不需要从编码器向解码器发送相关的运动矢量。
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15.发明授权Method for decoding data received from a data source using hardware configuration data received from the same data source 有权使用从相同数据源接收的硬件配置数据对从数据源接收的数据进行解码的方法公开(公告)号：US07408850B2
公开(公告)日：2008-08-05
申请号：US10827971
申请日：2004-04-20
IPC分类号： G11B7/00
CPC分类号： G11B20/10 , G11B20/00007 , G11B20/10527
摘要： Today the storage of audiovisual (AV) data on storage media employs standardized coding schemes, e.g. MPEG-2. End user devices for AV presentation, like disc players, contain dedicated decoders implemented in hardware, which are able to decode data streams complying with the respective standard. The efficiency of this decoding methodology relies on the standardization of appropriate coding schemes. Proprietary coding schemes may be more efficient by being adapted to the content, or may be used for content protection or optional features. Using reconfigurable decoder hardware, storing the configuration data for the actual decoder on the same storage medium as the AV data, and downloading the data to configure the player can be used to implement proprietary coding schemes. Such schemes require appropriate player hardware, suitable to execute a downloaded decoder under real-time conditions, and a standardized format to store the decoder configuration data.
摘要翻译： 今天，视听（AV）数据在存储媒体上的存储采用标准化的编码方案， MPEG-2。 用于AV呈现的最终用户设备（如光盘播放器）包含以硬件实现的专用解码器，其能够解码符合相应标准的数据流。 该解码方法的效率依赖于适当编码方案的标准化。 专有编码方案可以通过适应于内容而更有效，或者可以用于内容保护或可选特征。 使用可重构解码器硬件，将实际解码器的配置数据存储在与AV数据相同的存储介质上，并且下载数据以配置播放器可以用于实现专有编码方案。 这样的方案需要适当的播放器硬件，适合于在实时条件下执行下载的解码器，以及用于存储解码器配置数据的标准格式。
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16.发明申请Method and Apparatus for Generating Coded Picture Data and for Decoding Coded Picture Data 有权用于生成编码图像数据和解码编码图像数据的方法和装置公开(公告)号：US20070297510A1
公开(公告)日：2007-12-27
申请号：US11630020
申请日：2005-05-23
IPC分类号： H04B1/66
CPC分类号： H04N19/577 , H04N19/51 , H04N19/517 , H04N19/527 , H04N19/533 , H04N19/573
摘要： Motion compensated temporal prediction is well-known for redundancy reduction in video signal compression. A prediction error signal and a motion vector for a current block are transmitted, describing the location of the predictor block in the reference picture. A problem solved by the invention is to encode and decode video signals using less or no motion vector data side information. This is achieved through a temporal prediction which exploits common knowledge available in both encoder and decoder, requiring that the decoder performs a motion estimation, too. A common baseline motion estimation process is used at both encoder and decoder on the same set of video data that have already been compressed before and, hence, are available at both encoder and decoder, leading to identical motion parameters being generated in the decoder. These common motion parameters are used for generating a default temporal prediction without the need to transmit related motion vectors from the encoder to the decoder.
摘要翻译： 运动补偿时间预测是视频信号压缩的冗余减少是众所周知的。 发送用于当前块的预测误差信号和运动矢量，描述参考图像中预测块的位置。 本发明解决的问题是使用较少或没有运动矢量数据侧信息对视频信号进行编码和解码。 这是通过利用编码器和解码器中可用的常见知识的时间预测来实现的，要求解码器也执行运动估计。 在编码器和解码器上的同一组视频数据上使用公共的基线运动估计过程，该组视频数据已经在编码器和解码器之前被压缩，并且因此在编码器和解码器处可用，导致在解码器中产生相同的运动参数。 这些常见运动参数用于产生默认时间预测，而不需要从编码器向解码器发送相关的运动矢量。
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17.发明授权Method and apparatus for bi-directionally transferring data between an IEEE 1394 bus and a device to be controlled by a control signal transmitted via the bus 失效在IEEE 1394总线与要通过总线发送的控制信号控制的设备之间双向传输数据的方法和装置公开(公告)号：US06247083B1
公开(公告)日：2001-06-12
申请号：US09232108
申请日：1999-01-15
IPC分类号： G06F1300
CPC分类号： H04L12/40058 , G06F13/102 , H04L12/40117
摘要： The IEEE 1394 bus communication protocol has three layers: physical layer, link layer, and transaction layer. Typically, the transaction layer is realized by firmware whereas the other layers are implemented using chip sets. The link layer IC usually contains a FIFO having a capacity of e.g. 32k or 64k bits. Therefore, the link layer chip is the most costly part of a complete IEEE 1394 interface. Due to these cost reasons most ICs on the market are not bi-directional although the IEEE 1394 bus specification supports this feature. Incoming or outgoing data packets are intermediately stored in the FIFO. The current solution to this problem is to have two separate IEEE 1394 bus nodes assigned to the same application, the two nodes including two physical layer ICs and two link layer ICs. The inventors have found that although the physical link layer interface is not designed for this purpose, it works correctly with up to three link layer ICs and one physical layer IC if the additional link layer IC/ICs is/are programmed respectively. Therefore two or more link layer ICs can operate together with one physical layer IC in one node wherein the link layer ICs are connected to the same application or device.
摘要翻译： IEEE 1394总线通信协议有三层：物理层，链路层和事务层。 通常，事务层由固件实现，而其他层使用芯片组实现。 链路层IC通常包含具有例如容量的FIFO。 32k或64k位。 因此，链路层芯片是完整的IEEE 1394接口中最昂贵的部分。 由于这些成本原因，尽管IEEE 1394总线规范支持此功能，但大多数市场上的IC不是双向的。 传入或传出数据包中间存储在FIFO中。 目前这个问题的解决方案是分配给同一应用的两个单独的IEEE 1394总线节点，两个节点包括两个物理层IC和两个链路层IC。 发明人已经发现，虽然物理链路层接口不是为此目的设计的，但是如果额外的链路层IC / IC被分别编程，则其可以与多达三个链路层IC和一个物理层IC正确地工作。 因此，两个或多个链路层IC可以在一个节点中与一个物理层IC一起操作，其中链路层IC连接到相同的应用或设备。
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18.发明授权Video encoder and decoder image motion estimation system with reduced computation 失效视频编码器和解码器图像运动估计系统，减少计算
公开(公告)号：US06108378A
公开(公告)日：2000-08-22
申请号：US354929
申请日：1994-12-13
申请人： Heinz-Werner Keesen
发明人： Heinz-Werner Keesen
CPC分类号： G06T7/2013 , G06T2207/10016
摘要： The computation-intensive task of motion estimation for video signals is performed by block search methods using apparatus of reduced complexity. Motion estimation is performed by analyzing only specific bits, e.g. one or two MSBs, of the picture element values. These bits are logic-linked by means of EXOR and/or EXNOR functions, and the individual results for different block positions of a current block within a search window are combined. The respective motion vector for the current block is determined by using a minimum or maximum comparison.
摘要翻译： 用于视频信号的运动估计的计算密集型任务通过使用降低的复杂度的装置的块搜索方法来执行。 通过仅分析特定比特来执行运动估计，例如 一个或两个MSBs的像素值。 这些位通过EXOR和/或EXNOR功能进行逻辑链接，并且组合搜索窗口内当前块的不同块位置的各个结果。 通过使用最小或最大比较来确定当前块的相应运动矢量。
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19.发明授权Method and circuit arrangement for improving the resolution of the coefficients of digital signals, particularly digital TV signals 失效用于提高数字信号，特别是数字电视信号的系数分辨率的方法和电路装置
公开(公告)号：US4924309A
公开(公告)日：1990-05-08
申请号：US235057
申请日：1988-08-23
CPC分类号： H04N19/60
摘要： A method and apparatus for the improvement of the resolution of digital signals. In digital TV signals which are transformed into a frequency domain, irregularities in the pattern of the reproduced video signals occur because of rounding off errors, when the number of bits per sample is reduced during calculation of the coefficients. This is remedied by increasing the coefficients of the transformed signal values following at least one first coefficient, for example a DC-coefficient, and reducing them again after inverse transformation. This is applicable to digital systems using block processing in which, because of a limited amount of bits, a rounding off of the transmitted spectral coefficients is performed in the calculation.
摘要翻译： 一种用于提高数字信号分辨率的方法和装置。 在转换成频域的数字电视信号中，当在系数的计算期间每个样本的比特数减少时，由于舍入误差而产生再现的视频信号的模式的不规则性。 这通过增加至少一个第一系数（例如DC系数）之后的变换信号值的系数来补救，并且在逆变换之后再次减小它们。 这适用于使用块处理的数字系统，其中由于有限的位数，在计算中执行发送的频谱系数的舍入。
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公开(公告)号：US4864409A
公开(公告)日：1989-09-05
申请号：US146189
申请日：1988-01-20
CPC分类号： H04N5/23264 , H04N5/23248 , H04N5/23258
摘要： A television camera includes an acceleration correction device for correcting for sudden movements of the camera, to prevent blurring of the resulting television picture. The correction device changes the starting point on an image target depending upon the amount and direction of the acceleration. This correction does not occur until the acceleration exceeds a threshold value.
摘要翻译： 电视摄像机包括用于校正摄像机的突然移动的加速度校正装置，以防止所得到的电视画面的模糊。 校正装置根据加速度的量和方向改变图像目标上的起始点。 直到加速度超过阈值时才会发生该校正。
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