METHOD AND DEVICE FOR THE TRANSFORMATION AND METHOD AND DEVICE FOR THE REVERSE TRANSFORMATION OF IMAGES
    2.
    发明申请
    METHOD AND DEVICE FOR THE TRANSFORMATION AND METHOD AND DEVICE FOR THE REVERSE TRANSFORMATION OF IMAGES 审中-公开
    用于逆向转换图像的转换和方法和装置的方法和装置

    公开(公告)号:US20140140394A1

    公开(公告)日:2014-05-22

    申请号:US14127042

    申请日:2012-06-18

    IPC分类号: H04N19/625

    CPC分类号: H04N19/42 G06T3/40 H04N19/625

    摘要: Provided are methods and apparatuses for transforming and inverse-transforming an image. The method of transforming an image includes: obtaining scaled elements having integer values by scaling elements forming a transformation matrix used for N point discrete cosine transform (DCT), wherein N is an integer, by using a predetermined scaling factor; performing the N point DCT by using an integer transformation matrix formed of the scaled elements having integer values; and de-scaling result values of performing the N point DCT by using the predetermined scaling factor.

    摘要翻译: 提供了用于变换和逆变换图像的方法和装置。 变换图像的方法包括:通过使用预定的缩放因子,通过对形成用于N点离散余弦变换(DCT)的变换矩阵的缩放元素获得具有整数值的缩放元素,其中N是整数; 通过使用由具有整数值的缩放元件形成的整数变换矩阵来执行N点DCT; 以及通过使用所述预定比例因子来解除执行N点DCT的结果值。

    Method and apparatus for encoding and decoding an image by using rotational transform
    4.
    发明授权
    Method and apparatus for encoding and decoding an image by using rotational transform 失效
    通过使用旋转变换对图像进行编码和解码的方法和装置

    公开(公告)号:US08532416B2

    公开(公告)日:2013-09-10

    申请号:US12855901

    申请日:2010-08-13

    IPC分类号: G06K9/36

    摘要: A method and apparatus for encoding an image is provided. The method and apparatus include quantizing and entropy encoding a second frequency coefficient matrix that is generated by performing a partial exchange of one or more values between rows and between columns of a first frequency coefficient matrix. A method and apparatus for decoding image data that is encoded by using the method and apparatus for encoding the image is also provided.

    摘要翻译: 提供了一种用于编码图像的方法和装置。 所述方法和装置包括对通过在第一频率系数矩阵的行之间和列之间执行一个或多个值的部分交换而产生的第二频率系数矩阵的量化和熵编码。 还提供了一种用于对通过使用用于编码图像的方法和装置编码的图像数据进行解码的方法和装置。

    METHOD AND APPARATUS FOR ENTROPY ENCODING/DECODING
    7.
    发明申请
    METHOD AND APPARATUS FOR ENTROPY ENCODING/DECODING 有权
    用于入侵编码/解码的方法和装置

    公开(公告)号:US20140177708A1

    公开(公告)日:2014-06-26

    申请号:US14130028

    申请日:2012-06-28

    IPC分类号: H04N19/50

    摘要: Provided are methods and apparatuses for entropy-encoding and entropy-decoding an image. The method for entropy-encoding an image includes operations of arithmetically encoding a binary value of a current coding symbol, by using a probability of a predefined binary value which is determined based on previously-coded symbols that are encoded before the current coding symbol; and updating the probability of the predefined binary value by using a plurality of scaling factors, according to the binary value of the current coding symbol.

    摘要翻译: 提供了用于对图像进行熵编码和熵解码的方法和装置。 用于熵编码图像的方法包括通过使用基于在当前编码符号之前编码的先前编码的符号确定的预定二进制值的概率来对当前编码符号的二进制值进行算术编码的操作; 以及根据当前编码符号的二进制值,通过使用多个缩放因子来更新预定二进制值的概率。

    METHOD AND APPARATUS FOR VIDEO ENCODING AND METHOD AND APPARATUS FOR VIDEO DECODING
    8.
    发明申请
    METHOD AND APPARATUS FOR VIDEO ENCODING AND METHOD AND APPARATUS FOR VIDEO DECODING 审中-公开
    用于视频编码的方法和装置以及用于视频解码的方法和装置

    公开(公告)号:US20130083851A1

    公开(公告)日:2013-04-04

    申请号:US13640255

    申请日:2011-04-06

    IPC分类号: H04N7/36

    摘要: Methods and apparatuses for encoding and decoding a video by using pixel unit bi-directional motion compensation are provided. According to the method of encoding a video, pixel unit motion compensation is performed on each pixel of a current block by using pixels of first and second reference pictures used for bi-directional motion prediction and compensation, in addition to block unit bi-directional motion compensation performed on the current block, and a bi-directional motion prediction value of the current block is generated by using results of the block unit bi-directional motion compensation and pixel unit motion compensation.

    摘要翻译: 提供了通过使用像素单元双向运动补偿来对视频进行编码和解码的方法和装置。 根据编码视频的方法,除了块单元双向运动之外,通过使用用于双向运动预测和补偿的第一和第二参考图像的像素,对当前块的每个像素执行像素单位运动补偿 通过使用块单位双向运动补偿和像素单位运动补偿的结果,生成对当前块执行的补偿和当前块的双向运动预测值。