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    METHOD AND APPARATUS FOR DETERMINING EXPECTED DISTORTION IN DECODED VIDEO BLOCKS
    21.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING EXPECTED DISTORTION IN DECODED VIDEO BLOCKS 失效
    用于确定解码视频块中预期失真的方法和装置

    公开(公告)号：US20100239015A1

    公开(公告)日：2010-09-23

    申请号：US12310277

    申请日：2007-08-21

    申请人： Yao Wang ,  Jill MacDonald Boyce

    发明人： Yao Wang ,  Jill MacDonald Boyce

    IPC分类号： H04N11/02

    CPC分类号： H04N19/895 ,  H04N19/103 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/166 ,  H04N19/176 ,  H04N19/19 ,  H04N19/196 ,  H04N19/197 ,  H04N19/523 ,  H04N19/567 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

    摘要： There are provided methods and apparatus for determining expected distortion in decoded video blocks. An apparatus includes a distortion calculator for calculating an expected distortion for an image block, included in a picture of a video sequence and sent over a lossy channel, using a motion vector for the image block when the motion vector has a non-integer value. The distortion calculator calculates the expected distortion based upon a propagated distortion of at least two neighboring integer pixel positions in a reference picture with respect to the motion vector having the non-integer value. The image block is coded in an inter mode or a SKIP mode.

    摘要翻译： 提供了用于确定解码视频块中的预期失真的方法和装置。 一种设备包括：失真计算器，用于当运动矢量具有非整数值时，使用图像块的运动矢量来计算包含在视频序列的图像中并通过有损通道发送的图像块的预期失真。 失真计算器基于相对于具有非整数值的运动矢量的参考图像中的至少两个相邻整数像素位置的传播失真来计算预期失真。 图像块以帧间模式或SKIP模式编码。

    Region of Interest H.264 Scalable Video Coding
    23.
    发明申请
    Region of Interest H.264 Scalable Video Coding 有权
    感兴趣的地区H.264可缩放视频编码

    公开(公告)号：US20100158135A1

    公开(公告)日：2010-06-24

    申请号：US11992727

    申请日：2006-10-03

    申请人： Peng Yin ,  Jill MacDonald Boyce ,  Purvin Bibhas Pandit

    发明人： Peng Yin ,  Jill MacDonald Boyce ,  Purvin Bibhas Pandit

    IPC分类号： H04N7/26

    CPC分类号： H04N19/895 ,  H04N19/129 ,  H04N19/132 ,  H04N19/17 ,  H04N19/174 ,  H04N19/37 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

    摘要： An encoder, a decoder, corresponding encoding and decoding methods, video signal structure, and storage media are provided for scalable video encoding and decoding. A scalable video encoder includes an encoder (100) for encoding a picture to form a base layer bitstream and an enhancement layer bitstream. The base layer bitstream and the enhancement layer bitstream are formed by partitioning the picture into a plurality of image blocks, grouping the plurality of image blocks into one or more slice groups in the base layer bitstream and into two or more slice groups in the enhancement layer bitstream, encoding all of the one or more slice groups in the base layer bitstream and less than all of the two or more slice groups in the enhancement layer such that at least one slice group from among the two or more slice groups is intentionally un-encoded in the enhancement layer bitstream, encoding a syntax element in a header to indicate the at least one intentionally un-encoded slice group in the enhancement layer.

    摘要翻译： 提供编码器，解码器，对应的编码和解码方法，视频信号结构和存储介质，用于可扩展视频编码和解码。 可分级视频编码器包括用于编码图像以形成基本层比特流和增强层比特流的编码器（100）。 通过将图像分割成多个图像块来形成基本层比特流和增强层比特流，将多个图像块分组成基本层比特流中的一个或多个切片组，并将该多个图像块分组成增强层中的两个或更多个切片组 比特流，编码所述基本层比特流中的所述一个或多个切片组，并且小于所述增强层中的所述两个或更多个切片组中的全部，使得来自所述两个或更多个切片组中的至少一个切片组被有意地取消， 在增强层比特流中编码，对头部中的语法元素进行编码，以指示增强层中的至少一个有意未编码的切片组。

    Motion estimation with fast search block matching
    26.
    发明授权
    Motion estimation with fast search block matching 有权
    运动估计与快速搜索块匹配

    公开(公告)号：US07523234B2

    公开(公告)日：2009-04-21

    申请号：US10564662

    申请日：2004-03-02

    申请人： Peng Yin ,  Jill MacDonald Boyce

    发明人： Peng Yin ,  Jill MacDonald Boyce

    IPC分类号： G06F13/12

    CPC分类号： H04N19/57 ,  G06T7/238 ,  H04N19/557 ,  H04N19/567 ,  H04N19/61

    摘要： A video encoder and corresponding method are provided for encoding video signal data for an image block and a particular reference picture index to predict the image block, where the encoder includes a fast search block motion estimator for providing motion vectors corresponding to the at least one particular reference picture, the motion estimator comprising a fast search block matching portion for performing fast search block matching while excluding non-optimal search points in accordance with a comparison of a normalization of the image block pixels against a normalization of the reference picture pixels, the fast search block matching portion having an output responsive to the at least one particular reference picture; and the corresponding method includes receiving a substantially uncompressed image block, block matching the image block in correspondence with at least one particular reference picture while excluding non-optimal search points in accordance with a comparison of a normalization of the image block pixels against a normalization of the reference picture pixels, computing motion vectors corresponding to a difference between the image block and the at least one particular reference picture, and motion compensating the at least one particular reference picture in correspondence with the motion vectors.

    摘要翻译： 提供了一种用于对图像块的视频信号数据和特定参考图像索引进行编码以预测图像块的视频编码器和相应方法，其中编码器包括快速搜索块运动估计器，用于提供与至少一个特定的对应的运动矢量 运动估计器，包括用于执行快速搜索块匹配的快速搜索块匹配部分，同时根据图像块像素的归一化与参考图像像素的归一化的比较排除非最佳搜索点，快速搜索块匹配部分 搜索块匹配部分具有响应所述至少一个特定参考图片的输出; 并且相应的方法包括接收基本上未压缩的图像块，对应于至少一个特定参考图像的图像块匹配，同时根据图像块像素的归一化与标准化的比较排除非最佳搜索点 所述参考图像像素，计算与所述图像块和所述至少一个特定参考图像之间的差对应的运动矢量，以及对应于所述运动矢量的运动补偿所述至少一个特定参考图像。

    Method and Apparatus for Constrained Prediction for Reduced Resolution Update Mode and Complexity Scalability in Video Encoders and Decoders
    27.
    发明申请
    Method and Apparatus for Constrained Prediction for Reduced Resolution Update Mode and Complexity Scalability in Video Encoders and Decoders 审中-公开
    用于视频编码器和解码器中降低分辨率更新模式和复杂度可扩展性的约束预测的方法和装置

    公开(公告)号：US20090010333A1

    公开(公告)日：2009-01-08

    申请号：US12087370

    申请日：2007-01-30

    申请人： Alexandros Tourapis ,  Jill MacDonald Boyce ,  Peng Yin

    发明人： Alexandros Tourapis ,  Jill MacDonald Boyce ,  Peng Yin

    IPC分类号： H04N7/26

    CPC分类号： H04N19/59 ,  H04N19/11 ,  H04N19/187 ,  H04N19/33 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86

    摘要： There are provided methods and apparatus for constrained prediction for reduced resolution update mode and complexity scalability in video encoders and decoders. A scalable complexity video encoder includes an encoder for encoding a block in a particular picture in the video sequence by generating an intra mode prediction for the block using a constrained intra prediction process that reduces artifacts for both low and high resolutions in a reduced resolution update mode when the particular picture is eventually decoded. The constrained intra prediction process reduces the artifacts by prohibiting the use of particular prediction modes associated with the introduction of the artifacts in the reduced resolution update mode.

    摘要翻译： 提供了用于缩减分辨率更新模式和视频编码器和解码器中复杂度可扩展性的约束预测的方法和装置。 可缩放的复杂度视频编码器包括编码器，用于通过使用约束的帧内预测处理生成用于块的帧内模式预测来对视频序列中的特定图像进行编码，该处理减少分辨率更新模式中的低和高分辨率的伪影 当特定图片最终被解码时。 受限帧内预测处理通过禁止使用与在降低分辨率更新模式中引入伪像相关联的特定预测模式来减少伪像。

    Video Error Detection Technique Using a Crc Parity Code
    28.
    发明申请
    Video Error Detection Technique Using a Crc Parity Code 有权
    视频错误检测技术使用Crc奇偶校验码

    公开(公告)号：US20080298470A1

    公开(公告)日：2008-12-04

    申请号：US11795436

    申请日：2005-01-24

    申请人： Jill MacDonald Boyce ,  Alan Jay Stein

    发明人： Jill MacDonald Boyce ,  Alan Jay Stein

    IPC分类号： H04N7/26

    CPC分类号： H04N19/61

    摘要： Detection of errors in a video stream occurs by calculating an error detection code, such as a Cyclic Redundancy Check (CRC) code over a group of not more than N macroblocks in a slice of the stream prior and after transmission, where N is an integer greater than zero but less than the total number of macroblocks in the slice. A comparison of the error detection codes reveals whether any errors exist in the group of macroblocks. If the group has no errors, normal decoding occurs. If the macroblock group has an error, then the macroblock group, and the remaining blocks in the slice undergo error concealment.

    摘要翻译： 通过在传输之前和之后的流中的不超过N个宏块的组中计算诸如循环冗余校验（CRC）码的错误检测码来检测视频流中的错误，其中N是整数 大于零但小于片中宏块的总数。 错误检测码的比较显示在宏块组中是否存在任何错误。 如果组没有错误，则会发生正常解码。 如果宏块组具有错误，则宏块组以及片中的剩余块经历错误隐藏。

    Video Codec With Weighted Prediction Utilizing Local Brightness Variation
    29.
    发明申请
    Video Codec With Weighted Prediction Utilizing Local Brightness Variation 有权
    具有加权预测的视频编解码器利用局部亮度变化

    公开(公告)号：US20080253456A1

    公开(公告)日：2008-10-16

    申请号：US11662903

    申请日：2005-09-14

    申请人： Peng Yin ,  Jill MacDonald Boyce ,  Alexandros Tourapis

    发明人： Peng Yin ,  Jill MacDonald Boyce ,  Alexandros Tourapis

    IPC分类号： H04N7/32

    CPC分类号： H04N19/189 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

    摘要： There are provided video encoders, video decoders, and corresponding encoding and decoding methods for video data for a picture, wherein the video data has local brightness variation. The video encoder includes an encoder for inter-coding the video data using a localized weighted function to determine weights for the local brightness variation. The weights for the localized weighted function are derived without explicit coding.

    摘要翻译： 提供视频编码器，视频解码器以及用于图像的视频数据的相应编码和解码方法，其中视频数据具有局部亮度变化。 视频编码器包括编码器，用于使用局部加权函数对视频数据进行帧间编码，以确定局部亮度变化的权重。 本地加权函数的权重是没有明确编码的。

    Method and apparatus for receiving MPEG video over the internet
    30.
    发明授权
    Method and apparatus for receiving MPEG video over the internet 有权
    通过互联网接收MPEG视频的方法和装置

    公开(公告)号：US06490705B1

    公开(公告)日：2002-12-03

    申请号：US09176982

    申请日：1998-10-22

    申请人： Jill MacDonald Boyce

    发明人： Jill MacDonald Boyce

    IPC分类号： H03M1335

    CPC分类号： H04N19/66 ,  H04N19/30

    摘要： In order to transmit an inter-frame coded video signal, such as an MPEG-coded video signal, over a packet-based network such as the Internet, the video signal associated with at least one video frame, is split (102, 402) into a high priority partition and a low priority partition. A systematic forward error erasure/correction (FEC) code (108), such as a Reed Solomon (n,k) code, is then applied to bytes in the high priority partition. The forward error/erasure corrected high priority partition bytes and the low priority partition bytes are then combined (110) into n packets for transmission over the packet network to a receiver/decoder. Each of the n transmitted packets contains a combination of both high priority partition data bytes and low priority partition information bytes. In k of those packets the high priority partition data bytes are all high priority partition information bytes and in n-k of those packets all the high priority partition data byte are parity bytes produced by the FEC coding. More specifically, for each high priority partition byte position within the n packets, the forward error/erasure correction code is applied using one high priority partition information byte from the same byte position in each of those k packets to determine n-k parity bytes, which are arranged, one byte per packet, in the n-k packets containing high priority partition parity bytes. If up to n-k packets are lost in transmission over the packet network to the receiver (500, 600), then the high priority partition bytes in such lost packets can be recovered to applying FEC decoding (506) to the high partition bytes in the received packets. The most visually significant information is thus protected against packet loss over the network.

    摘要翻译： 为了通过诸如因特网的基于分组的网络发送诸如MPEG编码的视频信号之类的帧间编码视频信号，与至少一个视频帧相关联的视频信号被分割（102,402） 成为高优先级分区和低优先级分区。 然后将诸如里德所罗门（n，k）码的系统前向错误擦除/校正（FEC）码（108）应用于高优先级分区中的字节。 然后将正向错误/擦除校正的高优先级分区字节和低优先级分区字节组合（110）到n个分组中，以通过分组网络传送到接收机/解码器。 n个发送的分组中的每一个包含高优先级分区数据字节和低优先级分区信息字节的组合。 在这些分组的k中，高优先级分区数据字节都是高优先级分区信息字节，并且在这些分组的n-k中，所有高优先级分区数据字节都是由FEC编码产生的奇偶校验字节。 更具体地说，对于n个分组内的每个高优先级分配字节位置，使用来自这些k个分组中的每个分组中的相同字节位置的一个高优先级分区信息字节来应用前向错误/消失校正码，以确定nk个奇偶校验字节， 在包含高优先级分区奇偶校验字节的nk分组中排列一个字节每个分组。 如果通过分组网络向接收机（500,600）传输中最多nk个分组丢失，则可以恢复这些丢失分组中的高优先级分区字节，以将FEC解码（506）应用于接收到的高分区字节 数据包 因此，最视觉上重要的信息被保护以防止网络上的分组丢失。