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    • 44. 发明专利
    • Advanced interpolation techniques for motion compensation in video coding
    • 视频编码中运动补偿的先进插值技术
    • JP2013243739A
    • 2013-12-05
    • JP2013147070
    • 2013-07-12
    • Qualcomm Incクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • MARTA KARCZEWICZYE YANCHEN PEISONG
    • H04N7/32
    • H04N19/523H04N19/117H04N19/136H04N19/147H04N19/182H04N19/192H04N19/70H04N19/82
    • PROBLEM TO BE SOLVED: To provide various interpolation techniques performed by an encoder and a decoder during a motion compensation process of video coding.SOLUTION: An encoder interpolates pixel values of reference video data on the basis of a plurality of different predefined interpolation filters. In this example, the decoder receives a syntax element that identifies an interpolation filter, and interpolates pixel values of reference video data on the basis of the interpolation filter identified by the syntax element. In another example, a method of interpolating predictive video data includes: generating half-pixel values on the basis of integer pixel values; rounding the half-pixel values to generate half-pixel interpolated values; storing the half-pixel values as non-rounded versions of the half-pixel values; and generating quarter-pixel values on the basis of the non-rounded versions of the half-pixel values and the integer pixel values.
    • 要解决的问题:在视频编码的运动补偿处理期间提供由编码器和解码器执行的各种插值技术。解码器:编码器基于多个不同的预定插值滤波器内插参考视频数据的像素值。 在该示例中,解码器接收标识内插滤波器的语法元素,并且基于由语法元素识别的内插滤波器来内插参考视频数据的像素值。 在另一示例中,内插预测性视频数据的方法包括:基于整数像素值生成半像素值; 舍入半像素值以产生半像素内插值; 将半像素值存储为半像素值的非圆形版本; 以及基于半像素值和整数像素值的非圆形版本生成四分之一像素值。
    • 46. 发明专利
    • Offset calculation in switched interpolation filters
    • 开关插入滤波器的偏移计算
    • JP2013168949A
    • 2013-08-29
    • JP2013041958
    • 2013-03-04
    • Qualcomm Incクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • MARTA KARCZEWICZMOTTA GIOVANNIYE YANCHEN PEISONG
    • H04N7/32
    • H04N7/50H04N19/172H04N19/176H04N19/52H04N19/523H04N19/577H04N19/61
    • PROBLEM TO BE SOLVED: To provide a technique for adding an offset to a prediction video block during video coding.SOLUTION: A method of encoding a video block includes: interpolating a first block of predicted values based upon a first reference video unit in a first list of reference data, and interpolating a second block of predicted values based upon a second reference video unit in a second list of reference data; calculating, for sub-integer pixel positions, a first offset value based upon the first block and a current video block, and calculating a second offset value based upon the first offset value and the second block; determining a final block of offset values based upon the first block of predicted values, the second block of predicted values, the first offset value, and the second offset value; and encoding the current video block based upon the final block of offset values.
    • 要解决的问题:提供一种在视频编码期间向预测视频块添加偏移的技术。解决方案:一种对视频块进行编码的方法包括:基于第一参考视频单元内插第一预测值块 参考数据列表,以及基于参考数据的第二列表中的第二参考视频单元内插第二预测值块; 针对子整数像素位置计算基于第一块和当前视频块的第一偏移值,以及基于第一偏移值和第二块计算第二偏移值; 基于所述第一预测值块,所述第二预测值块,所述第一偏移值和所述第二偏移值,确定最终偏移值块; 以及基于偏移值的最终块对当前视频块进行编码。
    • 49. 发明专利
    • System and method for scalable encoding and decoding of scaling multimedia data using a plurality of layers
    • 使用多个层的可缩放编码和解码缩放多媒体数据的系统和方法
    • JP2011120281A
    • 2011-06-16
    • JP2011028942
    • 2011-02-14
    • Qualcomm Incクゥアルコム・インコーポレイテッドQualcomm Incorporated
    • CHEN PEISONGRAVEENDRAN VIJAYALAKSHMI R
    • H04N7/32
    • H04N19/36H04N19/103H04N19/105H04N19/136H04N19/139H04N19/14H04N19/176H04N19/18H04N19/187H04N19/30H04N19/31H04N19/61H04N19/70
    • PROBLEM TO BE SOLVED: To provide a system and a method for scalably encoding and decoding multimedia data by using a plurality of layers on the scalable encoding and decoding of audio data, video data, or multimedia data including both of them. SOLUTION: The method for processing multimedia data related to a plurality of layers is disclosed. The method can include steeps for deciding a base layer residual, and performing inter-layer prediction to generate an enhancement layer residual in the case that at least one of the number of non-zero coefficients of the base layer residual and the number of zero-coefficients of the base layer residual satisfies a first selected condition. A method for decoding a multimedia bit stream can include steps for receiving the multimedia bit stream that has a base layer and an enhancement layer, and decoding the base layer to decide whether the enhancement layer should be decoded by using intra-layer prediction or the inter-layers prediction or not. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种通过在包括它们两者的音频数据,视频数据或多媒体数据的可伸缩编码和解码上使用多个层来对多媒体数据进行可扩展编码和解码的方法。 解决方案:公开了用于处理与多个层相关的多媒体数据的方法。 该方法可以包括用于确定基本层残差的陡峭度,以及在基本层残差的非零系数的数目和零层残差数中的至少一个的情况下,执行层间预测以产生增强层残差, 基层残差的系数满足第一选择条件。 用于解码多媒体比特流的方法可以包括用于接收具有基本层和增强层的多媒体比特流的步骤,以及对基本层进行解码以决定是否应该通过使用帧内预测或帧内预测来解码增强层 - 层次预测与否。 版权所有(C)2011,JPO&INPIT