METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR
    12.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR 有权
    编码和解码运动矢量的方法和装置

    公开(公告)号:US20120155542A1

    公开(公告)日:2012-06-21

    申请号:US13403655

    申请日:2012-02-23

    IPC分类号: H04N7/36

    摘要: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a 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。 编码运动矢量的方法包括:从表示至少一个运动矢量预测器的运动矢量预测器的信息被编码的第一模式中选择模式,以及第二模式,其中基于 包括在与当前块相邻的先前编码区域中的像素被编码; 根据所选择的模式确定当前块的运动矢量预测器,并且编码关于当前块的运动矢量预测器的信息; 以及对当前块的运动矢量和当前块的运动矢量预测器之间的差矢量进行编码。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE AND METHOD AND APPARATUS FOR DECODING IMAGE USING ADAPTIVE COEFFICIENT SCAN ORDER
    13.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE AND METHOD AND APPARATUS FOR DECODING IMAGE USING ADAPTIVE COEFFICIENT SCAN ORDER 审中-公开
    用于编码和解码图像的方法和装置以及使用自适应系数扫描顺序解码图像的方法和装置

    公开(公告)号:US20110243220A1

    公开(公告)日:2011-10-06

    申请号:US13080157

    申请日:2011-04-05

    IPC分类号: H04N7/28

    CPC分类号: H04N19/129 H04N19/176

    摘要: Provided are a method and apparatus for encoding an image and a method and apparatus for decoding an image using an adaptive coefficient scan order. The method for encoding the image includes: projecting coefficients of a current block to a reference axis, from among a horizontal axis and a vertical axis, along a first straight line perpendicular to a second straight line with a predetermined angle α from the reference axis; scanning the coefficients of the current block in an arrangement order of the projected coefficients projected to the reference axis; and entropy-encoding information about the predetermined angle α and the scanned coefficients.

    摘要翻译: 提供了一种用于对图像进行编码的方法和装置,以及使用自适应系数扫描顺序对图像进行解码的方法和装置。 用于对图像进行编码的方法包括:沿着与从参考轴线以预定角度α垂直于第二直线的第一直线从水平轴和垂直轴向基准轴投影系数; 以投影到参考轴的投影系数的排列顺序扫描当前块的系数; 以及关于预定角度α和扫描系数的熵编码信息。

    METHOD AND APPARATUS FOR DETERMINING CODING FOR COEFFICIENTS OF RESIDUAL BLOCK, ENCODER AND DECODER
    14.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING CODING FOR COEFFICIENTS OF RESIDUAL BLOCK, ENCODER AND DECODER 失效
    用于确定残留块,编码器和解码器系统的编码的方法和装置

    公开(公告)号:US20080159389A1

    公开(公告)日:2008-07-03

    申请号:US11957731

    申请日:2007-12-17

    申请人: Tammy LEE Woo-jin HAN

    发明人: Tammy LEE Woo-jin HAN

    IPC分类号: H04N7/32

    摘要: Provided are a method and apparatus for determining coding for coefficients of a residual block, an encoder and a decoder. The method includes generating a residual block by subtracting a motion-compensated prediction block from the current block; frequency-converting coefficients of the residual block into frequency coefficients; frequency-converting coefficients of the motion-compensated prediction block into frequency coefficients; and determining coding for each of the coefficients of the frequency-converted residual block based on the coefficients of the frequency-converted prediction block. Accordingly, the amount of information transferred to a decoder can be reduced by not coding some coefficients of the residual block.

    摘要翻译: 提供了一种用于确定残差块,编码器和解码器的系数的编码的方法和装置。 该方法包括通过从当前块中减去运动补偿预测块来产生残差块; 将残差块的频率转换系数转换为频率系数; 将运动补偿预测块的频率转换系数转换为频率系数; 以及基于所述经频率转换的预测块的系数来确定所述经频率转换的残余块的每个系数的编码。 因此,可以通过不对残差块的一些系数进行编码来减少传送到解码器的信息量。

    METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR
    15.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR 有权
    编码和解码运动矢量的方法和装置

    公开(公告)号:US20130044815A1

    公开(公告)日:2013-02-21

    申请号:US13628682

    申请日:2012-09-27

    IPC分类号: H04N7/36

    摘要: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a 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。 编码运动矢量的方法包括:从表示至少一个运动矢量预测器的运动矢量预测器的信息被编码的第一模式中选择模式,以及第二模式,其中基于 包括在与当前块相邻的先前编码区域中的像素被编码; 根据所选择的模式确定当前块的运动矢量预测器,并且编码关于当前块的运动矢量预测器的信息; 以及对当前块的运动矢量和当前块的运动矢量预测器之间的差矢量进行编码。

    METHOD OF AND APPARATUS FOR VIDEO ENCODING AND DECODING BASED ON MOTION ESTIMATION
    16.
    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。

    VIDEO ENCODING AND DECODING METHOD AND APPARATUS USING WEIGHTED PREDICTION
    17.
    发明申请
    VIDEO ENCODING AND DECODING METHOD AND APPARATUS USING WEIGHTED PREDICTION 审中-公开
    使用加权预测的视频编码和解码方法和装置

    公开(公告)号:US20120236943A1

    公开(公告)日:2012-09-20

    申请号:US13482364

    申请日:2012-05-29

    申请人: Tammy LEE Woo-jin HAN

    发明人: Tammy LEE Woo-jin HAN

    IPC分类号: H04N7/32

    摘要: Provided is a video encoding and decoding method and apparatus. The video encoding method includes selecting a plurality of reference blocks based on a plurality of motion vectors and setting weights assigned to the plurality of reference blocks independently for each of a plurality of regions of a current block in order to predict and encode the current block, thereby providing a new encoding mode allowing accurate prediction of the current block and thus improving the compression rate of video encoding.

    摘要翻译: 提供了一种视频编码和解码方法和装置。 视频编码方法包括:基于多个运动矢量选择多个参考块,并且为当前块的多个区域中的每个区域独立地分配给多个参考块的设置权重,以便预测和编码当前块, 从而提供新的编码模式,允许对当前块的精确预测,从而提高视频编码的压缩率。