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公开(公告)号：US08160144B1
公开(公告)日：2012-04-17
申请号：US11738244
申请日：2007-04-20
IPC分类号： H04N11/02
CPC分类号： H04N19/533 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/52 , H04N19/53
摘要： Motion estimation in video encoding switches among motion estimation methods for successive predicted pictures depending upon statistics of prior pictures. Locally averaged motion vectors, fraction of intra-coded macroblocks, average quantization parameter, and so forth provide tests for applicability of particular motion estimation methods, such as ones which perform better for large motion or perform better for small motion with complex texture.
摘要翻译： 视频编码中的运动估计切换依赖于先前图像的统计的连续预测图像的运动估计方法。 本地平均运动矢量，帧内编码宏块的分数，平均量化参数等为特定的运动估计方法提供了适用性测试，例如对于大运动而言更好的运动估计方法或对具有复杂纹理的小运动表现更好的运动估计方法。
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公开(公告)号：US20090245673A1
公开(公告)日：2009-10-01
申请号：US12058775
申请日：2008-03-31
IPC分类号： G06K9/36
CPC分类号： H04N19/89 , H04N19/127 , H04N19/129 , H04N19/132 , H04N19/146 , H04N19/176 , H04N19/51 , H04N19/60
摘要： The method, system, and apparatus of a shared error resiliency path through coefficient reordering is disclosed. In on embodiment, determining that an input data is data-partitioned, performing a discrete cosine transform and a quantization of the input data to form a quantized data, separating a first coefficient representing a DC coefficient of the quantized data for each block of the input data, rearranging other coefficients representing AC coefficients of the quantized data for each block of the input data in a fashion produces a zig-zag scan output similar to that of a non-data-partitioned data, bypassing a DC encoding module, determining whether any of the rearranged AC coefficients of the quantized data need to be encoded, performing a zig-zag scan on the rearranged AC coefficients of the quantized data when they need to be encoded, and encoding the rearranged AC coefficients of the quantized data based on the zig-zag scan.
摘要翻译： 公开了通过系数重排序的共享错误弹性路径的方法，系统和装置。 在实施例中，确定输入数据被数据分割，执行离散余弦变换和输入数据的量化以形成量化数据，分离表示每个输入块的量化数据的DC系数的第一系数 数据，以一种方式重新排列代表输入数据的每个块的量化数据的AC系数的其他系数产生类似于非数据分区数据的锯齿形扫描输出，绕过DC编码模块，确定是否有 需要对量化数据的重新排列的AC系数进行编码，当需要编码量化数据的重新排列的AC系数时进行Z字形扫描，并根据Zig对量化数据的重新排列的AC系数进行编码 锯齿扫描
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公开(公告)号：US08386523B2
公开(公告)日：2013-02-26
申请号：US11292882
申请日：2005-12-02
IPC分类号： G06F7/00
CPC分类号： G10L19/167
摘要： Random access decoding start points (audio frame headers) for AMR-type files are found by sequential elimination of types of file points from consideration for a block of file points following a random access selected point. Chaining of file points according to frame header format interpretation gives paths of points through the block, and selection of maximal path(s) includes sums of weights of the points of a path. The next-to-initial points of such a maximal path provides a decoding start point.
摘要翻译： 通过随机访问选择点之后的文件点块的顺序消除文件点的类型，找到用于AMR型文件的随机存取解码起始点（音频帧头）。 根据帧头格式解释的文件点的链接给出通过块的点的路径，并且最大路径的选择包括路径的点的权重的和。 这样一个最大路径的下一个初始点提供一个解码起始点。
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公开(公告)号：US08270735B2
公开(公告)日：2012-09-18
申请号：US12058775
申请日：2008-03-31
IPC分类号： G06K9/36
CPC分类号： H04N19/89 , H04N19/127 , H04N19/129 , H04N19/132 , H04N19/146 , H04N19/176 , H04N19/51 , H04N19/60
摘要： The method, system, and apparatus of a shared error resiliency path through coefficient reordering is disclosed. In on embodiment, determining that an input data is data-partitioned, performing a discrete cosine transform and a quantization of the input data to form a quantized data, separating a first coefficient representing a DC coefficient of the quantized data for each block of the input data, rearranging other coefficients representing AC coefficients of the quantized data for each block of the input data in a fashion produces a zig-zag scan output similar to that of a non-data-partitioned data, bypassing a DC encoding module, determining whether any of the rearranged AC coefficients of the quantized data need to be encoded, performing a zig-zag scan on the rearranged AC coefficients of the quantized data when they need to be encoded, and encoding the rearranged AC coefficients of the quantized data based on the zig-zag scan.
摘要翻译： 公开了通过系数重排序的共享错误弹性路径的方法，系统和装置。 在实施例中，确定输入数据被数据分割，执行离散余弦变换和输入数据的量化以形成量化数据，分离表示每个输入块的量化数据的DC系数的第一系数 数据，以一种方式重新排列代表输入数据的每个块的量化数据的AC系数的其他系数产生类似于非数据分区数据的锯齿形扫描输出，绕过DC编码模块，确定是否有 需要对量化数据的重新排列的AC系数进行编码，当需要编码量化数据的重新排列的AC系数时进行Z字形扫描，并根据Zig对量化数据的重新排列的AC系数进行编码 锯齿扫描
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