RESOLVING GEOMETRIC RELATIONSHIPS AMONG VIDEO DATA UNITS
    61.
    发明申请
    RESOLVING GEOMETRIC RELATIONSHIPS AMONG VIDEO DATA UNITS 失效
    解决视频数据单位的几何关系

    公开(公告)号:US20100080284A1

    公开(公告)日:2010-04-01

    申请号:US12239031

    申请日:2008-09-26

    IPC分类号: H04N7/12

    摘要: An apparatus performs efficient coding techniques to more efficiently resolve geometric relationships between video data units and thereby determine neighboring video data units for a current video data unit. The apparatus comprises a geometric resolution unit that obtains video data defining a plurality of video data units, and determines, for the current one of the plurality of video data units to be processed, a partition width and a video unit number of the current video data unit. The geometric resolution unit accesses, using the determined partition width and video unit number, a plurality of look-up tables (LUTs) to output one or more indices identifying one or more of the plurality of video data units that neighbor the current video data unit.

    摘要翻译: 一种装置执行有效的编码技术以更有效地解决视频数据单元之间的几何关系,从而确定当前视频数据单元的相邻视频数据单元。 该装置包括几何分辨单元,其获取定义多个视频数据单元的视频数据,并且对于要处理的多个视频数据单元中的当前一个视频数据单元,确定当前视频数据的分区宽度和视频单元数 单元。 几何分辨率单元使用确定的分区宽度和视频单元号来访问多个查找表(LUT),以输出识别与当前视频数据单元相邻的多个视频数据单元中的一个或多个的一个或多个索引 。

    CAVLC RUN-BEFORE DECODING SCHEME
    62.
    发明申请
    CAVLC RUN-BEFORE DECODING SCHEME 有权
    CAVLC运行前解码方案

    公开(公告)号:US20100007533A1

    公开(公告)日:2010-01-14

    申请号:US12169464

    申请日:2008-07-08

    IPC分类号: H03M7/40

    CPC分类号: H03M7/425 H04N19/70 H04N19/91

    摘要: Techniques for decoding the run_before fields in a CAVLC encoded bitstream for H.264 are disclosed. In one aspect, the codewords corresponding to a plurality of consecutive initial zero-value run_before codewords are stored in a look-up table, allowing the decoding of such a plurality of run_before codewords in a single computation cycle. In another aspect, the look-up table is additionally configured to decode the next non-zero run_before value after the initial zero-value run_before codewords in the same computation cycle.

    摘要翻译: 公开了用于解码用于H.264的CAVLC编码比特流中的run_before字段的技术。 在一个方面,与多个连续的初始零值run_before代码字相对应的码字被存储在查找表中,允许在单个计算周期中对这样的多个run_before码字进行解码。 在另一方面,查找表另外配置为在相同计算周期中的初始零值run_before代码字之后解码下一个非零run_before值。

    VIDEO CODING WITH ADAPTIVE FILTERING FOR MOTION COMPENSATED PREDICTION
    63.
    发明申请
    VIDEO CODING WITH ADAPTIVE FILTERING FOR MOTION COMPENSATED PREDICTION 有权
    视频编码与自适应滤波运动补偿预测

    公开(公告)号:US20080089417A1

    公开(公告)日:2008-04-17

    申请号:US11869062

    申请日:2007-10-09

    申请人: Yiliang Bao Yan Ye

    发明人: Yiliang Bao Yan Ye

    IPC分类号: H04N7/12 H04B1/66 H04N7/18

    摘要: This disclosure is directed to video coding techniques that support normal single layer video coding, or scalable video coding with features such as signal-to-noise ratio (SNR) scalability and spatial scalability. A video coding device may implement these techniques in a video decoder that includes a motion compensation module and a filter. The motion compensation module decodes a prediction frame from a digital video signal, wherein the motion compensation module determines each block of the inter-coded frame from motion vectors encoded in the digital video signal. The filter adaptively filters one or more of the inter-coded blocks based on a signal either encoded or inferred from the digital video signal. In some instances, the video decoder may adaptively apply different filter functions, one in the horizontal and another in the vertical direction, based on the signal. By implementing these techniques, the video decoder may increase the visual quality of the resulting decoded digital video signal while reducing complexity.

    摘要翻译: 本公开涉及支持正常单层视频编码的视频编码技术或具有诸如信噪比(SNR)可缩放性和空间可伸缩性等特征的可缩放视频编码。 视频编码装置可以在包括运动补偿模块和滤波器的视频解码器中实现这些技术。 运动补偿模块从数字视频信号中解码预测帧,其中运动补偿模块从数字视频信号中编码的运动矢量确定帧间编码帧的每个块。 滤波器基于从数字视频信号编码或推断的信号自适应地过滤一个或多个帧间编码块。 在一些情况下,视频解码器可以基于该信号自适应地应用不同的滤波器功能,一个在水平方向上,另一个在垂直方向。 通过实现这些技术,视频解码器可以增加所得到的解码数字视频信号的视觉质量,同时降低复杂性。

    VIDEO CODING WITH FINE GRANULARITY SCALABILITY USING CYCLE-ALIGNED FRAGMENTS
    64.
    发明申请
    VIDEO CODING WITH FINE GRANULARITY SCALABILITY USING CYCLE-ALIGNED FRAGMENTS 有权
    使用周期对齐的片段,具有精细粒度可扩展性的视频编码

    公开(公告)号:US20080013622A1

    公开(公告)日:2008-01-17

    申请号:US11776679

    申请日:2007-07-12

    CPC分类号: H04N19/34

    摘要: The disclosure describes FGS video coding techniques that use cycle-aligned fragments (CAFs). The techniques may perform cycle-based coding of FGS video data block coefficients and syntax elements, and encapsulate cycles in fragments for transmission. The fragments may be cycle-aligned such that a start of a payload of each of the fragments substantially coincides with a start of one of the cycles. In this manner, cycles can be readily accessed via individual fragments. Some cycles may be controlled with a vector mode to scan to a predefined position within a block before moving to another block. In this manner, the number of cycles can be reduced, reducing the number of fragments and associated overhead. The CAFs may be entropy coded independently of one another so that each fragment may be readily accessed and decoded without waiting for decoding of other fragments. Independent entropy coding may permit parallel decoding and simultaneous processing of fragments.

    摘要翻译: 本公开描述了使用循环对准片段(CAF)的FGS视频编码技术。 这些技术可以执行FGS视频数据块系数和语法元素的基于循环的编码,并且将循环封装成用于传输的片段。 片段可以是循环对齐的,使得每个片段的有效载荷的开始基本上与循环中的一个的开始重合。 以这种方式,可以容易地通过各个片段访问周期。 可以通过向量模式来控制一些周期,以便在移动到另一个块之前扫描到块内的预定位置。 以这种方式,可以减少周期数,减少片段的数量和相关的开销。 CAF可以彼此独立地进行熵编码,使得每个片段可以容易地被访问和解码,而不等待其他片段的解码。 独立熵编码可以允许并行解码和片段的同时处理。

    Separation markers in fine granularity scalable video coding
    65.
    发明申请
    Separation markers in fine granularity scalable video coding 审中-公开
    精细粒度可分级视频编码中的分离标记

    公开(公告)号:US20070053442A1

    公开(公告)日:2007-03-08

    申请号:US11510257

    申请日:2006-08-25

    IPC分类号: H04N11/04

    摘要: When coding a fine granularity scalability layer separated by color components, a marker is provided to signal the end of each color component. In particular, markers are used to separate luminance (Y) component from chrominance components (U,V) so that the chrominance components can be discarded in the truncation of the FGS layer. A different marker may be used to indicate the location of the color separation marker. In video editing, the chrominance components of encoded video data of the FGS layer are stored while the luminance component is decoded so that video effects can be applied to the luminance component. In the base layer, the luminance component is extracted from the decoded base layer for video effect application.

    摘要翻译: 当对由颜色分量分开的细粒度可伸缩层进行编码时,提供标记以向每个颜色分量的末端发信号。 特别地,标记用于将亮度(Y)分量与色度分量(U,V)分离,使得可以在FGS层的截断中丢弃色度分量。 可以使用不同的标记来指示分色标记的位置。 在视频编辑中,在对亮度分量进行解码的同时存储FGS层的编码视频数据的色度分量,使得视频效果可以应用于亮度分量。 在基层中,从用于视频效果应用的解码基层提取亮度分量。

    Method and apparatus for update step in video coding using motion compensated temporal filtering
    66.
    发明申请
    Method and apparatus for update step in video coding using motion compensated temporal filtering 审中-公开
    使用运动补偿时间滤波的视频编码中的更新步骤的方法和装置

    公开(公告)号:US20070053441A1

    公开(公告)日:2007-03-08

    申请号:US11479126

    申请日:2006-06-29

    IPC分类号: H04N11/04

    摘要: The present invention provides a method and module for performing the update operation in motion compensated temporal filtering for video coding. The update operation is performed according to coding blocks in the prediction residue frame. Depending on macroblock mode in the prediction step, a coding block can have different sizes. Macroblock modes are used to specify how a macroblock is segmented into blocks. In the prediction step, the reverse direction of the motion vectors is used directly as an update motion vector and therefore no motion vector derivation process is performed. Motion vectors that significantly deviate from their neighboring motion vectors are considered not reliable and excluded from the update step. An adaptive filter is used in interpolating the prediction residue block for the update operation. The adaptive filter is an adaptive combination of a short filter and a long filter.

    摘要翻译: 本发明提供一种用于在视频编码的运动补偿时间滤波中执行更新操作的方法和模块。 根据预测残差帧中的编码块执行更新操作。 根据预测步骤中的宏块模式,编码块可以具有不同的大小。 宏块模式用于指定宏块如何分段成块。 在预测步骤中,将运动矢量的反方向直接用作更新运动矢量,因此不进行运动矢量导出处理。 显着偏离其相邻运动矢量的运动矢量被认为是不可靠的,并且从更新步骤中排除。 使用自适应滤波器来内插用于更新操作的预测残差块。 自适应滤波器是短滤波器和长滤波器的自适应组合。

    Adaptive variable length codes for independent variables
    68.
    发明申请
    Adaptive variable length codes for independent variables 审中-公开
    自变量自适应变长码

    公开(公告)号:US20070046504A1

    公开(公告)日:2007-03-01

    申请号:US11511982

    申请日:2006-08-28

    IPC分类号: H03M7/00

    摘要: A method for coding spatial and quality enhancement information in scalable video coding using variable length codes. Conventional systems have been capable of using variable length codes only with nonscalable video coding. In the present invention, the coded block pattern for each block of information, significance passes, and refinement passes can all be coded with different types of variable length codes. The present invention also provides for a variable length encoder/decoder that dynamically adapts to the actual symbol probability. The encoder/decoder of the present invention counts the number of times each symbol is coded. Based upon these counts, the encoder/decoder selects how many symbols to group when forming a code word. The encoder also uses these counts to select the specific codeword that should be used.

    摘要翻译: 一种使用可变长度码对可缩放视频编码中的空间和质量增强信息进行编码的方法。 传统的系统只能使用不可扩展的视频编码来使用可变长度码。 在本发明中,可以使用不同类型的可变长度码对每个信息块,重要性传递和细化遍的编码块模式进行编码。 本发明还提供了一种动态适应实际符号概率的可变长度编码器/解码器。 本发明的编码器/解码器对每个符号进行编码的次数进行计数。 基于这些计数,编码器/解码器在形成码字时选择要分组的符号数量。 编码器还使用这些计数来选择应使用的特定码字。

    Coding dependency indication in scalable video coding
    69.
    发明申请
    Coding dependency indication in scalable video coding 审中-公开
    可扩展视频编码中的编码依赖指示

    公开(公告)号:US20070014346A1

    公开(公告)日:2007-01-18

    申请号:US11181690

    申请日:2005-07-13

    IPC分类号: H04B1/66 H04N7/12

    摘要: A method of encoding and decoding a scalable video data stream comprising a base layer and at least one enhancement layer. A scalable data stream is encoded, wherein the data stream includes at least one non-required picture in a temporal location of a layer wherein decoding of pictures in an upper layer at and succeeding the said temporal location in decoding order does not require said non-required picture, and wherein information of the at least one non-required picture is signalled in the scalable video data stream. In the decoding phase, the signalled information is decoded and pictures in a layer above the non-required picture at and succeeding the said temporal location in decoding order are decoded without decoding said non-required picture.

    摘要翻译: 一种对包括基础层和至少一个增强层的可分级视频数据流进行编码和解码的方法。 对可伸缩数据流进行编码,其中数据流在层的时间位置包括至少一个不需要的图像,其中以解码顺序解码在所述时间位置上和之后的上层中的图像不需要所述非必需图像, 并且其中所述至少一个不需要的图像的信息在可伸缩视频数据流中被发信号通知。 在解码阶段,对解码信号进行解码,解码顺序对所述时刻位置之后的非需要图像上的图层进行解码,而不对所述不需要的图像进行解码。

    Method and system for motion vector prediction in scalable video coding
    70.
    发明申请
    Method and system for motion vector prediction in scalable video coding 审中-公开
    可扩展视频编码中运动矢量预测的方法和系统

    公开(公告)号:US20060153300A1

    公开(公告)日:2006-07-13

    申请号:US11330703

    申请日:2006-01-11

    摘要: In scalable video coding where two predictive motion vectors are calculated: one from the current layer neighboring motion vectors and one from the co-located base layer motion vectors. One of the two predictive motion vectors is chosen as the predictive motion vector for current block. A flag bit is coded to indicate which predictive motion vector is chosen only if it is not possible to infer the layer from which the predictive motion vector for the current block comes. Such inference is possible in many situations, such as when both predictive motion vectors are substantially the same, or only one of the vectors is reliable or available.

    摘要翻译: 在可计算的视频编码中,其中计算两个预测运动矢量:一个来自当前层相邻的运动矢量和一个来自同位置的基层运动矢量。 选择两个预测运动矢量中的一个作为当前块的预测运动矢量。 编码标志位以指示仅当不可能推断出来自当前块的预测运动矢量的层时才选择哪个预测运动矢量。 这样的推断在许多情况下是可能的,例如当两个预测运动矢量基本相同时,或者只有一个向量是可靠的或可用的。