Deblocking filtering method considering intra-BL mode and multilayer video encoder/decoder using the same
    1.
    发明申请
    Deblocking filtering method considering intra-BL mode and multilayer video encoder/decoder using the same 审中-公开
    考虑BL内模式的解块滤波方法及使用其的多层视频编解码器

    公开(公告)号:US20070025448A1

    公开(公告)日:2007-02-01

    申请号:US11483646

    申请日:2006-07-11

    IPC分类号: H04N11/04 H04B1/66

    摘要: Deblocking filter used in a video encoder/decoder based on a multilayer. In deciding a deblocking filter strength when performing a deblocking filtering with respect to a boundary between a current block coded by an intra-BL mode and its neighboring block, it is determined whether the current block or the neighboring block has coefficients. The filter strength is decided as a first filter strength if it is determined that the current block or the neighboring block has the coefficients, and the filter strength is decided as a second filter strength if it is determined that the current block or the neighboring block does not have the coefficients. The first filter strength is greater than the second filter strength.

    摘要翻译: 基于多层的视频编码器/解码器中使用的去块滤波器。 在对由BL模式编码的当前块与其相邻块之间的边界执行解块滤波时,决定解块滤波器强度时,确定当前块或相邻块是否具有系数。 如果确定当前块或相邻块具有系数,则将滤波器强度确定为第一滤波器强度,并且如果确定当前块或相邻块确定了滤波器强度,则将滤波器强度确定为第二滤波器强度 没有系数。 第一过滤强度大于第二过滤强度。

    Method of encoding flag, method of decoding flag, and apparatus thereof
    2.
    发明申请
    Method of encoding flag, method of decoding flag, and apparatus thereof 有权
    编码标志的方法,标志的解码方法及其装置

    公开(公告)号:US20070160302A1

    公开(公告)日:2007-07-12

    申请号:US11599484

    申请日:2006-11-15

    IPC分类号: G06K9/46

    摘要: A method of encoding flags, a method of decoding flags and an apparatus thereof, in which flag encoding and decoding can be efficiently performed by using spatial correlation between various flags included a plurality of blocks are provided. The method includes collecting flag values respectively allocated to groups of the plurality of blocks according to spatial correlation of blocks to create a flag bit-string, dividing the flag bit-string into a plurality of divided bit-strings using a group size, setting a pattern bit indicating whether all bits included in the divided bit-strings are 0 or not, and performing entropy coding on the divided bit-strings according to the set pattern bit.

    摘要翻译: 提供一种编码标志的方法,一种解码标志的方法及其装置,其中可以通过使用包括多个块的各种标志之间的空间相关性来有效地执行标志编码和解码。 该方法包括根据块的空间相关性分别分配分配给多个块的组的标志值,以创建标志位串,使用组大小将标志位串划分成多个划分的位串,将 模式比特,指示分割的比特串中包含的所有比特是否为0,并根据所设置的模式比特对分割的比特串进行熵编码。

    Deblocking control method considering intra BL mode and multilayer video encoder/decoder using the same
    4.
    发明授权
    Deblocking control method considering intra BL mode and multilayer video encoder/decoder using the same 有权
    考虑内部BL模式的解块控制方法和使用相同的多层视频编码器/解码器

    公开(公告)号:US08542750B2

    公开(公告)日:2013-09-24

    申请号:US11322392

    申请日:2006-01-03

    CPC分类号: H04N19/61

    摘要: A deblocking filter used in a video encoder/decoder based on a multilayer is disclosed. The deblocking filtering method includes choosing a present block and its neighboring block on which a deblocking filtering will be performed, judging whether the present block and the neighboring block have been coded by the intra BL mode, choosing a deblocking filter strength according to the result of the judgment, and performing the deblocking filtering with respect to a boundary between the present block and the neighboring block and according to the deblocking filter strength.

    摘要翻译: 公开了一种用于基于多层的视频编码器/解码器中的去块滤波器。 解块滤波方法包括:选择当前块及其相邻块,在其上执行去块滤波,判断当前块和相邻块是否已经通过帧内BL模式进行编码,根据其结果选择解块滤波器强度 并且根据解块滤波器强度对当前块和相邻块之间的边界执行解块滤波。

    Method of encoding flag, method of decoding flag, and apparatus thereof
    6.
    发明授权
    Method of encoding flag, method of decoding flag, and apparatus thereof 有权
    编码标志的方法,标志的解码方法及其装置

    公开(公告)号:US07840083B2

    公开(公告)日:2010-11-23

    申请号:US11599484

    申请日:2006-11-15

    IPC分类号: G06K9/36 G06K9/46 G06K9/00

    摘要: A method of encoding flags, a method of decoding flags and an apparatus thereof, in which flag encoding and decoding can be efficiently performed by using spatial correlation between various flags included a plurality of blocks are provided. The method includes collecting flag values respectively allocated to groups of the plurality of blocks according to spatial correlation of blocks to create a flag bit-string, dividing the flag bit-string into a plurality of divided bit-strings using a group size, setting a pattern bit indicating whether all bits included in the divided bit-strings are 0 or not, and performing entropy coding on the divided bit-strings according to the set pattern bit.

    摘要翻译: 提供一种编码标志的方法,一种解码标志的方法及其装置,其中可以通过使用包括多个块的各种标志之间的空间相关性来有效地执行标志编码和解码。 该方法包括根据块的空间相关性分别分配分配给多个块的组的标志值,以创建标志位串,使用组大小将标志位串划分成多个划分的位串,将 模式位,指示分割的位串中包括的所有比特是否为0,以及根据所设置的模式比特对分割的比特串进行熵编码。

    Flag encoding method, flag decoding method, and apparatus thereof
    7.
    发明申请
    Flag encoding method, flag decoding method, and apparatus thereof 审中-公开
    标志编码方法,标志解码方法及其装置

    公开(公告)号:US20070297518A1

    公开(公告)日:2007-12-27

    申请号:US11723862

    申请日:2007-03-22

    IPC分类号: H04B1/66

    摘要: The present invention relates to a video compression technology, and more particularly, to an effective flag-coding method and apparatus thereof by using a spatial correlation among various flags used to code a video frame. In order to accomplish the object, there is provided an apparatus for encoding a flag used to code a video frame composed of a plurality of blocks, the apparatus including a flag-assembling unit which collects flag values allotted for each block and produces a flag bit string, based on spatial correlation of the blocks, a maximum-run-determining unit which determines a maximum run of the flag bit string, and a converting unit which converts the bits included in the flag bit string into a codeword having a size no more than the maximum run by using a predetermined codeword table.

    摘要翻译: 视频压缩技术技术领域本发明涉及一种视频压缩技术,更具体地说,涉及一种通过使用用于对视频帧进行编码的各种标志之间的空间相关性的有效标志编码方法及其装置。 为了实现该目的,提供了一种用于编码用于编码由多个块组成的视频帧的标志的装置,该装置包括标志组合单元,该标志组合单元收集为每个块分配的标志值,并产生标志位 字符串,基于所述块的空间相关性,确定所述标志位串的最大行程的最大运行确定单元,以及将包括在所述标志位串中的位转换为尺寸不大的码字的转换单元 比通过使用预定码字表的最大运行。

    Video coding method and apparatus using multi-layer based weighted prediction
    8.
    发明申请
    Video coding method and apparatus using multi-layer based weighted prediction 审中-公开
    使用多层加权预测的视频编码方法和装置

    公开(公告)号:US20060291562A1

    公开(公告)日:2006-12-28

    申请号:US11454908

    申请日:2006-06-19

    摘要: A method and apparatus for efficiently encoding a plurality of layers using inter-layer information in a multi-layer based video codec are disclosed. The video encoding method includes operations of reading the weighting factors of one layer; performing motion compensation on reference frames for the current frame based on a motion vector; generating a predicted frame for the current frame by acquiring a weighted sum of the motion-compensated reference frames using the read weighting factors; and encoding the difference between the current frame and the predicted frame.

    摘要翻译: 公开了一种使用多层视频编解码器中的层间信息对多层进行有效编码的方法和装置。 视频编码方法包括读取一层加权因子的操作; 基于运动矢量对当前帧的参考帧执行运动补偿; 通过使用读取的加权因子获取运动补偿参考帧的加权和来产生当前帧的预测帧; 并对当前帧和预测帧之间的差进行编码。

    Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer
    9.
    发明申请
    Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer 有权
    基于多层视频编码器有效压缩运动矢量的方法和装置

    公开(公告)号:US20060088101A1

    公开(公告)日:2006-04-27

    申请号:US11254051

    申请日:2005-10-20

    摘要: A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.

    摘要翻译: 提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。 该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量,从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量,第二帧速率大于 第一帧速率,如果在相同时刻没有基本层帧的情况下,通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测的运动矢量 位置作为第一增强层帧,并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差,以及所获得的基本层中的运动矢量。

    Method and apparatus for adaptively selecting context model for entropy coding
    10.
    发明授权
    Method and apparatus for adaptively selecting context model for entropy coding 有权
    用于自适应选择熵编码的上下文模型的方法和装置

    公开(公告)号:US08351502B2

    公开(公告)日:2013-01-08

    申请号:US11405665

    申请日:2006-04-18

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: A method and apparatus for adaptively selecting a context model for entropy coding and a video decoder are provided. A method of coding a residual prediction flag indicating whether residual data for an enhancement layer block of a multi-layered video signal is predicted from residual data for a lower layer block corresponding to the residual data for the enhancement layer block includes the steps of calculating the energy of the residual data for the lower layer block, determining a coding method for the residual prediction flag according to the energy, and coding the residual prediction flag using the determined coding method.

    摘要翻译: 提供一种用于自适应地选择用于熵编码的上下文模型和视频解码器的方法和装置。 编码残差预测标志的方法,该残差预测标志指示用于与用于增强层块的残差数据相对应的下层块的残差数据的多层视频信号的增强层块的残差数据是否被预测包括以下步骤: 根据能量确定残差预测标志的编码方法,并使用所确定的编码方法对残差预测标记进行编码。