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    • 5. 发明专利
    • Video coding with large macroblocks
    • 视频编码与大型MACROBLOCKS
    • JP2014143691A
    • 2014-08-07
    • JP2014033266
    • 2014-02-24
    • Qualcomm Incorporatedクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • CHEN PAYSONYE YANMARTA KARCZEWICZ
    • H04N19/103
    • H04N19/103H04N19/147H04N19/176H04N19/46H04N19/61H04N19/70
    • PROBLEM TO BE SOLVED: To provide techniques for encoding and decoding digital video data using macroblocks that are larger than conventional macroblocks.SOLUTION: The techniques include encoding and decoding a video stream using macroblocks comprising pixels greater than 16×16 pixels, for example, 64×64 pixels. An apparatus includes a video encoder configured to: receive a video block having a size of more than 16×16 pixels; partition the block into partitions; encode one of the partitions using a first encoding mode; encode another of the partitions using a second encoding mode different from the first encoding mode; and generate block-type syntax information that indicates the size of the block and identifies the partitions and the encoding modes used to encode the partitions.
    • 要解决的问题:提供使用大于常规宏块的宏块对数字视频数据进行编码和解码的技术。解决方案:该技术包括使用包括大于16×16像素的像素的宏块(例如64)来编码和解码视频流 ×64像素。 一种装置,包括视频编码器,被配置为:接收尺寸大于16×16像素的视频块; 将块分割成分区; 使用第一编码模式对其中一个分区进行编码; 使用与第一编码模式不同的第二编码模式对另一个分区进行编码; 并生成指示块的大小并识别用于对分区进行编码的分区和编码模式的块型语法信息。
    • 6. 发明专利
    • Digital video coding with interpolation filters and offsets
    • 数字视频编码与插值滤波器和偏移
    • JP2014042273A
    • 2014-03-06
    • JP2013197616
    • 2013-09-24
    • Qualcomm Incorporatedクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • MARTA KARCZEWICZMOTTA GIOVANNIYE YANCHEN PAYSON
    • H04N19/50
    • H04N19/577H04N19/117H04N19/136H04N19/147H04N19/19H04N19/192H04N19/523H04N19/59H04N19/61H04N19/82
    • PROBLEM TO BE SOLVED: To provide techniques for encoding digital video data by using interpolation filters and offsets.SOLUTION: An encoder may be configured to select interpolation filters for sub-pixel precision motion estimation on the basis of historical interpolation results obtained for previously encoded video units, such as frames or slices. The encoder may also be configured to compute and assign offsets to the sub-pixel positions after interpolation on the basis of differences between a reference unit and the unit to be coded. The computation and assignment of the offsets may be performed before motion estimation. Motion estimation may be refined such that the motion search considers sub-pixel positions to which offsets have been previously added and evaluates sub-pixel positions that have non-zero offsets. In some cases, interpolation filter selection, offset computation, and/or refined motion estimation for a given unit may be performed in a single encoding pass.
    • 要解决的问题:提供通过使用内插滤波器和偏移量来对数字视频数据进行编码的技术。解决方案:编码器可以被配置为基于针对先前编码的视频获得的历史插值结果来选择用于子像素精度运动估计的内插滤波器 单位,如框架或切片。 编码器还可以被配置为基于参考单元和要编码的单元之间的差异来计算和分配内插之后的子像素位置的偏移量。 可以在运动估计之前执行偏移的计算和分配。 可以改进运动估计,使得运动搜索考虑先前已经添加了偏移的子像素位置,并且评估具有非零偏移的子像素位置。 在一些情况下,可以在单个编码过程中执行用于给定单元的内插滤波器选择,偏移计算和/或精细运动估计。
    • 8. 发明专利
    • Interpolation filter support for sub-pixel resolution in video coding
    • 内插滤波器支持视频编码中的子像素分辨率
    • JP2014057333A
    • 2014-03-27
    • JP2013217909
    • 2013-10-18
    • Qualcomm Incorporatedクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • YE YANMARTA KARCZEWICZ
    • H04N19/50
    • H04N7/364H04N7/014H04N19/117H04N19/136H04N19/147H04N19/182H04N19/192H04N19/463H04N19/523
    • PROBLEM TO BE SOLVED: To provide filtering techniques applied by an encoder and a decoder during a prediction stage of a video encoding and/or decoding process.SOLUTION: The filtering techniques may enhance the accuracy of predictive data used during fractional interpolation, and may improve predictive data of integer blocks of pixels. The present invention includes a useful twelve-pixel filter support that may be used for interpolation, techniques that use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Other aspects concern techniques for encoding information in a bitstream to convey the type of filter used, and optionally the filter coefficients used. Predictive coding of filter coefficients is also described.
    • 要解决的问题:在视频编码和/或解码过程的预测阶段期间提供由编码器和解码器应用的滤波技术。解决方案:滤波技术可以增强在分数插值期间使用的预测数据的精度,并且可以改善 整数像素块的预测数据。 本发明包括可用于插值的有用的十二像素滤波器支持,使用系数对称性和像素对称性的技术来减少编码器和解码器之间需要发送的数据量以配置用于插值的滤波器支持, 以及以类似于子像素插值的方式在整数像素位置处对数据进行滤波的技术。 其他方面涉及用于在比特流中编码信息以传送所使用的滤波器的类型以及可选地使用的滤波器系数的技术。 还描述了滤波器系数的预测编码。
    • 10. 发明专利
    • Video coding with fine granularity spatial scalability
    • 视频编码具有细微的空间尺度
    • JP2012114928A
    • 2012-06-14
    • JP2012000460
    • 2012-01-05
    • Qualcomm Incクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • YLLIAN BAOYE YAN
    • H04N7/32H04N19/895
    • H04N19/34H04N19/105H04N19/159H04N19/33H04N19/59H04N19/61
    • PROBLEM TO BE SOLVED: To support spatially scalable coding by using a generalized fine granularity scalability (FGS) approach.SOLUTION: Spatial scalability is achieved by sending spatially scalable enhancement layers in a generalized FGS format. Spatially scalable enhancement bit streams are arbitrarily truncated to conform to network conditions, channel conditions and/or decoder capabilities. Coding coefficients and syntax elements for spatial scalability are embedded in the generalized FGS format. For good network or channel conditions, and/or enhanced decoder capabilities, additional bits received via one or more enhancement layers permit encoded video to be reconstructed with increased spatial resolution and improved quality across different spatial resolutions. The spatial scalability is coded as FGS layers, rather than discrete layers, permitting arbitrary scalability. Error propagation caused by partial decoding is curbed.
    • 要解决的问题:通过使用广义细粒度可伸缩性(FGS)方法来支持空间可伸缩编码。 解决方案:通过以广义FGS格式发送空间可缩放的增强层来实现空间可扩展性。 空间可缩放的增强比特流被任意地截断以符合网络条件,信道条件和/或解码器能力。 用于空间可扩展性的编码系数和语法元素嵌入在广义FGS格式中。 为了良好的网络或信道条件和/或增强的解码器能力,经由一个或多个增强层接收的附加比特允许以不同的空间分辨率提高的空间分辨率和改进的质量来重构经编码的视频。 空间可扩展性被编码为FGS层,而不是离散层,允许任意的可扩展性。 由部分解码引起的错误传播受到限制。 版权所有(C)2012,JPO&INPIT