IMAGE-ENCODING METHOD AND A DEVICE THEREFOR, AND IMAGE-DECODING METHOD AND A DEVICE THEREFOR
    1.
    发明申请
    IMAGE-ENCODING METHOD AND A DEVICE THEREFOR, AND IMAGE-DECODING METHOD AND A DEVICE THEREFOR 审中-公开
    图像编码方法及其设备,以及图像解码方法及其设备

    公开(公告)号:US20110090967A1

    公开(公告)日:2011-04-21

    申请号:US12997747

    申请日:2009-06-03

    IPC分类号: H04N7/32 H04N7/28

    摘要: An image encoding method is provided, in which image data divided into basic blocks is classified in units of groups and subgroups, wherein each group comprises at least one basic block and each subgroup comprises at least one basic block and is included in each group; an encoding mode for a predetermined group is determined in order to encode the predetermined group, wherein the encoding mode represents a mode for encoding data included in the predetermined group in units of one data processing unit selected from a group, a subgroup, and a basic block; and the data of the predetermined group is encoded according to the determined encoding mode. Detailed operations in the image encoding method are performed in consideration of the encoding mode of the group.

    摘要翻译: 提供一种图像编码方法,其中划分为基本块的图像数据被分组为组和子组,其中每个组包括至少一个基本块,并且每个子组包括至少一个基本块并且被包括在每个组中; 确定用于预定组的编码模式,以便对预定组进行编码,其中编码模式表示用于对从组,子组和基本组中选择的一个数据处理单元单元中的包含在预定组中的数据进行编码的模式 块; 并且根据确定的编码模式对预定组的数据进行编码。 考虑到组的编码模式来执行图像编码方法中的详细操作。

    Method and apparatus for entropy encoding/decoding
    4.
    发明授权
    Method and apparatus for entropy encoding/decoding 失效
    用于熵编码/解码的方法和装置

    公开(公告)号:US08345752B2

    公开(公告)日:2013-01-01

    申请号:US11780990

    申请日:2007-07-20

    IPC分类号: H04N7/12

    摘要: A method and apparatus are provided for performing entropy encoding on a fine granular scalability layer. A method of entropy encoding on a plurality of current coefficients of a quality layer among a plurality of quality layers of an image block divided into the plurality of quality layers, includes determining a coding pass with respect to each of the current coefficients, selecting a context model with respect to each of the current coefficients using at least one lower coefficient corresponding to each of the current coefficients if the coding pass is a refinement pass, and performing arithmetic encoding a group of coefficients having a same selected context model among the current coefficients by using the selected context model.

    摘要翻译: 提供了一种在细粒度可伸缩性层上进行熵编码的方法和装置。 对分割为多个质量层的图像块的多个质量层中的质量层的多个当前系数进行熵编码的方法包括确定关于每个当前系数的编码遍,选择上下文 使用与当前系数中的每一个相对应的至少一个较低系数的当前系数中的每一个的模型,并且在当前系数中对具有相同的所选上下文模型的一组系数进行算术编码, 使用所选择的上下文模型。

    Method and apparatus for motion prediction using inverse motion transform
    5.
    发明申请
    Method and apparatus for motion prediction using inverse motion transform 审中-公开
    使用逆运动变换的运动预测方法和装置

    公开(公告)号:US20070160136A1

    公开(公告)日:2007-07-12

    申请号:US11650519

    申请日:2007-01-08

    IPC分类号: H04B1/66 H04N11/02

    摘要: A method and apparatus for performing a motion prediction using an inverse motion transformation are provided. The method includes generating a second motion vector by inverse-transforming a first motion vector of a second block in a lower layer, the second block corresponding to a first block in a current layer; predicting a motion vector of the first block using the second motion vector; and encoding the first block using the predicted motion vector. The apparatus includes a motion vector inverse-transforming unit that generates a second motion vector by inverse-transforming a first motion vector of a second block in a lower layer corresponding to a first block in a current layer; a predicting unit that predicts a motion vector of the first block using the second motion vector; and an inter-prediction encoding unit that encodes the first block using the predicted motion vector.

    摘要翻译: 提供了一种使用逆运动变换进行运动预测的方法和装置。 该方法包括通过对下层中的第二块的第一运动矢量进行逆变换来生成第二运动矢量,第二块对应于当前层中的第一块; 使用所述第二运动矢量预测所述第一块的运动矢量; 以及使用预测的运动矢量对第一块进行编码。 该装置包括:运动矢量反变换单元,其通过对与当前层中的第一块对应的下层中的第二块的第一运动矢量进行逆变换来生成第二运动矢量; 预测单元,其使用所述第二运动矢量来预测所述第一块的运动矢量; 以及帧间预测编码单元,其使用所述预测运动矢量对所述第一块进行编码。

    Method and apparatus for video encoding and decoding
    6.
    发明授权
    Method and apparatus for video encoding and decoding 有权
    用于视频编码和解码的方法和装置

    公开(公告)号:US08873633B2

    公开(公告)日:2014-10-28

    申请号:US12031847

    申请日:2008-02-15

    摘要: A method and apparatus for encoding a skip macroblock by dividing the skip macroblock into smaller skip sub blocks and using predictive motion vectors predicted from motion vectors of blocks adjacent to the skip sub blocks, and a method and apparatus for decoding the skip macroblock is provided. Accordingly, by adding predetermined binary information indicating whether the skip macroblock is divided to the skip macroblock that generally transmits only prediction mode information, division of the skip macroblock can be adaptively applied, or all skip macroblocks can be divided into sub-blocks to be processed, so that pixel values in the skip macroblock can be predicted by using motion vectors of spatially adjacent blocks. Therefore, prediction efficiency increases.

    摘要翻译: 提供一种通过将跳过宏块划分为更小的跳跃子块并使用从与跳过子块相邻的块的运动矢量预测的预测运动矢量来对跳过宏块进行编码的方法和装置,以及用于对跳过宏块进行解码的方法和装置。 因此,通过将表示跳过宏块是否被划分为通常只发送预测模式信息的跳跃宏块的预定二进制信息,可以自适应地应用跳过宏块的划分,或者所有跳过宏块可以被划分为要被处理的子块 ,使得可以通过使用空间相邻块的运动矢量来预测跳跃宏块中的像素值。 因此,预测效率提高。

    METHOD AND APPARATUS FOR ENCODING VIDEO USING ADJUSTABLE LOOP FILTERING, AND METHOD AND APPARATUS FOR DECODING VIDEO USING ADJUSTABLE LOOP FILTERING
    7.
    发明申请
    METHOD AND APPARATUS FOR ENCODING VIDEO USING ADJUSTABLE LOOP FILTERING, AND METHOD AND APPARATUS FOR DECODING VIDEO USING ADJUSTABLE LOOP FILTERING 审中-公开
    使用可调节环路滤波编码视频的方法和装置,以及使用可调节环路滤波来解码视频的方法和装置

    公开(公告)号:US20130156111A1

    公开(公告)日:2013-06-20

    申请号:US13809388

    申请日:2011-07-07

    IPC分类号: H04N7/26

    摘要: Provided is a method of decoding a video by using a video decoding processor, the method including: extracting encoding information and encoded video data by receiving and parsing a bit stream of a video; decoding the encoded video data for each coding unit which is a data unit for decoding the video data, by using the encoding information; performing loop filtering on the coding unit with respect to the decoded video data by using internal pixels of the coding unit based on a minimum distance between a pixel on which loop filtering is to be performed and a border of the coding unit; and restoring the video by combining the decoded video data and data on which the loop filtering is performed, for each coding unit.

    摘要翻译: 提供了一种通过使用视频解码处理器对视频进行解码的方法,所述方法包括:通过接收和解析视频的比特流来提取编码信息和编码视频数据; 通过使用编码信息对作为用于解码视频数据的数据单元的每个编码单元的编码视频数据进行解码; 根据要进行环路滤波的像素与编码单元的边界之间的最小距离,通过使用编码单元的内部像素,对编码单元对编码单元执行环路滤波; 并且对于每个编码单元,通过组合解码的视频数据和执行了环路滤波的数据来恢复视频。

    METHOD OF ENCODING AND DECODING MOTION MODEL PARAMETERS AND VIDEO ENCODING AND DECODING METHOD AND APPARATUS USING MOTION MODEL PARAMETERS
    8.
    发明申请
    METHOD OF ENCODING AND DECODING MOTION MODEL PARAMETERS AND VIDEO ENCODING AND DECODING METHOD AND APPARATUS USING MOTION MODEL PARAMETERS 审中-公开
    使用运动模型参数编码和解码运动模型参数和视频编码和解码方法和装置的方法

    公开(公告)号:US20080240247A1

    公开(公告)日:2008-10-02

    申请号:US12028846

    申请日:2008-02-11

    IPC分类号: H04N7/12

    摘要: Provided are a method of efficiently transmitting motion model parameters using temporal correlation between video frames and a video encoding and decoding method and apparatus, in which motion estimation and motion compensation are performed by generating a plurality of reference pictures that are motion-compensated using motion model parameters. Motion model parameters are encoded based on temporal correlation between motion vectors of representative points expressing the motion model parameters, global motion compensation is performed on a previous reference video frame using motion model parameters in order to generate a plurality of transformation reference pictures, and a current video frame is encoded using the plurality of transformation reference pictures.

    摘要翻译: 提供了一种使用视频帧之间的时间相关性和视频编码和解码方法和装置来有效地传输运动模型参数的方法,其中通过使用运动模型生成运动补偿的多个参考图像来执行运动估计和运动补偿 参数。 基于表示运动模型参数的代表点的运动矢量之间的时间相关性对运动模型参数进行编码,使用运动模型参数对先前的参考视频帧执行全局运动补偿,以便生成多个变换参考图片,以及电流 使用多个变换参考图片对视频帧进行编码。