Method and apparatus for encoding and decoding an image based on plurality of reference pictures
    13.
    发明授权
    Method and apparatus for encoding and decoding an image based on plurality of reference pictures 有权
    基于多个参考图像对图像进行编码和解码的方法和装置

    公开(公告)号:US08731055B2

    公开(公告)日:2014-05-20

    申请号:US12395977

    申请日:2009-03-02

    IPC分类号: H04N7/12 H04N11/02 H04N7/26

    摘要: A method and apparatus for encoding and decoding an image using a plurality of reference pictures. In an exemplary embodiment, the method of encoding an image comprises: generating information about transforms between a first picture and a second picture; generating a reference picture by transforming the second picture based on the generated information about transforms; predicting a current block of a current picture based on at least one of the reference picture and the first picture; and encoding the current block based on the predicting. Therefore, prediction encoding based on more accurate prediction is possible, thereby increasing a compression ratio of image encoding.

    摘要翻译: 一种使用多个参考图像对图像进行编码和解码的方法和装置。 在示例性实施例中,编码图像的方法包括:产生关于第一图像和第二图像之间的变换的信息; 通过基于生成的关于变换的信息来变换第二画面来生成参考画面; 基于所述参考图像和所述第一图像中的至少一个来预测当前图像的当前块; 并根据预测编码当前块。 因此,可以进行基于更精确的预测的预测编码,从而增加图像编码的压缩率。

    Method and apparatus for video interprediction encoding /decoding
    15.
    发明授权
    Method and apparatus for video interprediction encoding /decoding 有权
    用于视频插入编码/解码的方法和装置

    公开(公告)号:US08630345B2

    公开(公告)日:2014-01-14

    申请号:US11936382

    申请日:2007-11-07

    IPC分类号: H04N11/04

    摘要: Provided is are method and apparatus for video interprediction encoding/decoding. The method of video interprediction encoding/decoding includes extracting intraprediction-encoded/decoded blocks included in previously encoded/decoded pictures and predicting a current block from the extracted blocks. Thus, video encoding/decoding can be performed using both an intra (I) picture and correlation with adjacent pictures, thereby increasing the speed of video encoding/decoding.

    摘要翻译: 提供了用于视频插入编码/解码的方法和装置。 视频插值编码/解码的方法包括提取包含在先前编码/解码的图像中的预设预编码/解码块,并从提取的块预测当前块。 因此,可以使用帧内(I)图像和与相邻图像的相关性来执行视频编码/解码,从而增加视频编码/解码的速度。

    Deblocking control method considering intra BL mode and multilayer video encoder/decoder using the same
    16.
    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
    18.
    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 AND APPARATUS FOR ENCODING/DECODING IMAGES USING A MOTION VECTOR OF A PREVIOUS BLOCK AS A MOTION VECTOR FOR THE CURRENT BLOCK
    20.
    发明申请
    METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING A MOTION VECTOR OF A PREVIOUS BLOCK AS A MOTION VECTOR FOR THE CURRENT BLOCK 有权
    使用先前块的运动矢量作为电流块的运动矢量来编码/解码图像的方法和装置

    公开(公告)号:US20120294363A1

    公开(公告)日:2012-11-22

    申请号:US13574110

    申请日:2011-01-19

    申请人: Tammy Lee Woo-jin Han

    发明人: Tammy Lee Woo-jin Han

    IPC分类号: H04N7/32

    摘要: An encoding method and apparatus and a decoding method and apparatus for determining a motion vector of a current block based on a motion vector of at least one previously-encoded or previously-decoded block are provided. The decoding method includes: decoding information regarding a prediction direction from among a first direction, a second direction, and bi-directions, and information regarding pixel values of the current block; determining the prediction direction in which the current block is to be predicted, based on the decoded information regarding the prediction direction, and determining a motion vector for predicting the current block in the determined prediction direction; and restoring the current block, based on the determined motion vector and the decoded information regarding the pixel values, wherein the first direction is a direction from a current picture to a previous picture, and the second direction is a direction from the current picture to a subsequent picture.

    摘要翻译: 提供了一种用于基于至少一个先前编码或先前解码的块的运动矢量来确定当前块的运动矢量的编码方法和装置以及解码方法和装置。 解码方法包括:从第一方向,第二方向和双向解码关于预测方向的信息,以及关于当前块的像素值的信息; 基于关于预测方向的解码信息,确定当前块要预测的预测方向,并且确定用于在确定的预测方向上预测当前块的运动矢量; 并且基于所确定的运动矢量和关于像素值的解码信息来恢复当前块,其中第一方向是从当前图像到先前图像的方向,并且第二方向是从当前图像到 后续图片。