Deblocking control method considering intra BL mode and multilayer video encoder/decoder using the same
    1.
    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。

    Video coding and decoding method using weighted prediction and apparatus for the same
    4.
    发明授权
    Video coding and decoding method using weighted prediction and apparatus for the same 有权
    视频编码和解码方法采用加权预测和装置相同

    公开(公告)号:US08396123B2

    公开(公告)日:2013-03-12

    申请号:US13183049

    申请日:2011-07-14

    IPC分类号: H04N7/12

    摘要: A video coding and decoding method using a weighted prediction and an apparatus for the same are provided. The video coding method includes generating a predicted image for a present block; generating a weighted prediction factor which is a scaling factor of the predicted image that minimizes the difference between the present block and the predicted image; generating a weighted prediction image by multiplying the predicted image by the weighted prediction factor; and coding a residual signal generated by subtracting the weighted prediction image from the present block.

    摘要翻译: 提供了使用加权预测的视频编码和解码方法及其装置。 视频编码方法包括生成当前块的预测图像; 产生加权预测因子,其是使所述当前块与所述预测图像之间的差最小化的所述预测图像的缩放因子; 通过将预测图像乘以加权预测因子来生成加权预测图像; 以及对从当前块中减去加权预测图像而产生的残差信号进行编码。

    METHOD OF AND APPARATUS FOR VIDEO ENCODING AND DECODING BASED ON MOTION ESTIMATION
    5.
    发明申请
    METHOD OF AND APPARATUS FOR VIDEO ENCODING AND DECODING BASED ON MOTION ESTIMATION 审中-公开
    基于运动估计的视频编码和解码的方法和装置

    公开(公告)号:US20130010872A1

    公开(公告)日:2013-01-10

    申请号:US13614219

    申请日:2012-09-13

    IPC分类号: H04N7/32

    摘要: Provided is a method of and apparatus for video encoding and decoding based on motion estimation. The method includes generating a motion vector by searching a reference picture using pixels of a current block, generating a prediction motion vector that is a prediction value of the motion vector by searching the reference picture using previously encoded pixels located adjacent to the current block, and encoding the current block based on the motion vector and the prediction motion vector. By accurately predicting the motion vector of the current block, the number of bits required for encoding the motion vector can be reduced, thereby improving the compression rate of video data.

    摘要翻译: 提供了一种基于运动估计的用于视频编码和解码的方法和装置。 该方法包括通过使用当前块的像素搜索参考图像来生成运动矢量,通过使用与当前块相邻的先前编码的像素搜索参考图像来生成作为运动矢量的预测值的预测运动矢量,以及 基于运动矢量和预测运动矢量对当前块进行编码。 通过精确地预测当前块的运动矢量,可以减少编码运动矢量所需的位数,从而提高视频数据的压缩率。

    Method and apparatus for encoding/decoding motion vector
    6.
    发明授权
    Method and apparatus for encoding/decoding motion vector 有权
    用于编码/解码运动矢量的方法和装置

    公开(公告)号:US08311118B2

    公开(公告)日:2012-11-13

    申请号:US13403476

    申请日:2012-02-23

    IPC分类号: H04N7/12

    摘要: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding the motion vector includes: selecting, as a mode of encoding information about a motion vector predictor of the current block, a first mode in which information indicating the motion vector predictor from among at least one motion vector predictor is encoded or a second mode in which information indicating generation of the motion vector predictor based on blocks or pixels included in a previously encoded area adjacent to the current block is encoded; determining the motion vector predictor of the current block according to the selected mode and encoding the information about the motion vector predictor of the current block; and encoding a difference vector between the motion vector of the current block and the motion vector predictor of the current block.

    摘要翻译: 提供了用于对运动矢量进行编码和解码的方法和装置。 对运动矢量进行编码的方法包括:作为对当前块的运动矢量预测器的信息进行编码的模式,选择对从至少一个运动矢量预测器中的运动矢量预测器进行编码的信息进行编码的第一模式, 第二模式,其中编码基于与当前块相邻的先前编码区域中包括的块或像素的运动矢量预测器的生成的信息; 根据所选择的模式确定当前块的运动矢量预测器,并对关于当前块的运动矢量预测器的信息进行编码; 并且对当前块的运动矢量与当前块的运动矢量预测器之间的差矢量进行编码。

    Method for compressing/decompressing motion vectors of unsynchronized picture and apparatus using the same
    8.
    发明授权
    Method for compressing/decompressing motion vectors of unsynchronized picture and apparatus using the same 有权
    用于压缩/解压缩不同步图像的运动矢量和使用其的装置的方法

    公开(公告)号:US08085847B2

    公开(公告)日:2011-12-27

    申请号:US11393755

    申请日:2006-03-31

    IPC分类号: H04N7/12

    摘要: A method and apparatus are provided for improving the compression efficiency of motion vectors of an unsynchronized picture by efficiently predicting the motion vectors using motion vectors of a lower layer. The method compresses motion vectors of an unsynchronized picture belonging to a current layer in a video encoder based on a multilayer having at least the current layer and a lower layer of the current layer. The method includes selecting a base picture for the unsynchronized picture, generating a predicted motion vector of the current layer from a motion vector of the base picture, subtracting the predicted motion vector from a motion vector of the unsynchronized picture, and encoding the result of subtraction.

    摘要翻译: 提供一种方法和装置,用于通过使用下层的运动矢量有效地预测运动矢量来提高非同步图像的运动矢量的压缩效率。 该方法基于至少具有当前层的当前层和下层的多层压缩视频编码器中属于当前层的不同步图像的运动矢量。 该方法包括:选择用于非同步图像的基本图像,从基本图像的运动矢量生成当前图层的预测运动矢量,从非同步图像的运动矢量中减去预测运动矢量,并对相减结果进行编码 。

    Method of encoding flag, method of decoding flag, and apparatus thereof
    10.
    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。