METHOD AND APPARATUS FOR ENCODING VIDEO SIGNAL AND METHOD AND APPARATUS FOR DECODING VIDEO SIGNAL
    2.
    发明申请
    METHOD AND APPARATUS FOR ENCODING VIDEO SIGNAL AND METHOD AND APPARATUS FOR DECODING VIDEO SIGNAL 有权
    用于编码视频信号的方法和装置以及用于解码视频信号的方法和装置

    公开(公告)号:US20110280302A1

    公开(公告)日:2011-11-17

    申请号:US13108188

    申请日:2011-05-16

    IPC分类号: H04N7/30 H04N7/26

    摘要: Provided are a method and apparatus for encoding a video signal and a method and apparatus for decoding a video signal. The method of encoding the video signal includes: determining an optimum scaling bit depth of the video signal in consideration of a maximum bit number of an intermediate value obtained during transformation of the video signal and a maximum bit precision of the video signal; scaling the video signal according to a local shift value corresponding to a difference between the determined optimum scaling bit depth and an original bit depth of the video signal; and transforming the scaled video signal.

    摘要翻译: 提供了一种用于对视频信号进行编码的方法和装置以及用于对视频信号进行解码的方法和装置。 视频信号的编码方法包括:考虑在视频信号的变换期间获得的中间值的最大位数和视频信号的最大位精度,确定视频信号的最佳缩放比特深度; 根据与确定的最佳缩放比特深度和视频信号的原始比特深度之间的差对应的本地移位值对视频信号进行缩放; 并转换缩放的视频信号。

    METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO
    4.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO 有权
    编码和解码视频的方法和装置

    公开(公告)号:US20110243233A1

    公开(公告)日:2011-10-06

    申请号:US13080121

    申请日:2011-04-05

    IPC分类号: H04N7/26

    摘要: Methods and apparatuses for encoding and decoding video are provided. The encoding method includes: performing motion estimation on a current block according to a first sub-pixel unit, and obtaining a motion vector in the first sub-pixel unit with respect to the current block; interpolating a reference picture indicated by the motion vector according to a second sub-pixel unit smaller than the first sub-pixel unit; using the interpolated reference picture, selecting a second sub-pixel in the second sub-pixel unit adjacent to a first sub-pixel in the first sub-pixel unit of the reference picture; selecting a corresponding region that has a smaller error with the current block, from among a first corresponding region of the reference picture and obtained with respect to the first sub-pixel, and a second corresponding region of the current block and obtained with respect to the selected second sub-pixel; and encoding information of the selected corresponding region.

    摘要翻译: 提供用于编码和解码视频的方法和装置。 编码方法包括:根据第一子像素单元对当前块执行运动估计,并获得关于当前块的第一子像素单元中的运动矢量; 根据比第一子像素单元小的第二子像素单元内插由运动矢量指示的参考图像; 使用内插参考图像,在与参考图片的第一子像素单元中的第一子像素相邻的第二子像素单元中选择第二子像素; 从参考图像的第一对应区域中,相对于第一子像素选择与当前块具有较小误差的对应区域,以及当前块的第二对应区域,并相对于 选择的第二子像素; 以及编码所选择的对应区域的信息。

    METHOD AND APPARATUS FOR ENCODING VIDEO BY USING DYNAMIC-RANGE TRANSFORMATION, AND METHOD AND APPARATUS FOR DECODING VIDEO BY USING DYNAMIC-RANGE TRANSFORMATION
    5.
    发明申请
    METHOD AND APPARATUS FOR ENCODING VIDEO BY USING DYNAMIC-RANGE TRANSFORMATION, AND METHOD AND APPARATUS FOR DECODING VIDEO BY USING DYNAMIC-RANGE TRANSFORMATION 有权
    使用动态范围变换编码视频的方法和装置,以及通过使用动态范围转换来解码视频的方法和装置

    公开(公告)号:US20110243232A1

    公开(公告)日:2011-10-06

    申请号:US13079982

    申请日:2011-04-05

    IPC分类号: H04N7/26

    CPC分类号: H04N19/61 H04N19/98

    摘要: Provided is a method and apparatus for encoding a video by using dynamic range transformation based on content and a method and apparatus for decoding a video by using dynamic range transformation based on content. The encoding method includes: performing inter prediction, through motion estimation, and intra prediction for a current region using image data in which a dynamic range of the current region is transformed based on content of an image of input video; performing transformation on residual data generated by the intra prediction and the inter prediction and performing quantization on a transformation coefficient generated by the transformation; and performing entropy encoding on the quantized transformation coefficient.

    摘要翻译: 提供了一种通过使用基于内容的动态范围变换来编码视频的方法和装置,以及通过使用基于内容的动态范围变换对视频进行解码的方法和装置。 编码方法包括:使用基于输入图像的图像的内容对当前区域的动态范围进行变换的图像数据,通过运动估计和当前区域的帧内预测进行帧间预测; 对由帧内预测和帧间预测生成的残差数据进行变换,对由变换生成的变换系数进行量化; 对量化的变换系数进行熵编码。

    METHOD AND APPARATUS FOR ENCODING VIDEO, AND METHOD AND APPARATUS FOR DECODING VIDEO
    7.
    发明申请
    METHOD AND APPARATUS FOR ENCODING VIDEO, AND METHOD AND APPARATUS FOR DECODING VIDEO 有权
    用于编码视频的方法和装置,以及用于解码视频的方法和装置

    公开(公告)号:US20110135000A1

    公开(公告)日:2011-06-09

    申请号:US12964688

    申请日:2010-12-09

    IPC分类号: H04N7/26

    摘要: Disclosed are a video encoding method and apparatus and a video decoding method and apparatus. The method of encoding video includes: producing a first predicted coding unit of a current coding unit, which is to be encoded; determining whether the current coding unit comprises a portion located outside a boundary of a current picture; and producing a second predicted coding unit is produced by changing a value of pixels of the first predicted coding unit by using the pixels of the first predicted coding unit and neighboring pixels of the pixels when the current coding unit does not include a portion located outside a boundary of the current picture. Accordingly, a residual block that is the difference between the current encoding unit and the second predicted encoding unit, can be encoded, thereby improving video prediction efficiency.

    摘要翻译: 公开了视频编码方法和装置以及视频解码方法和装置。 编码视频的方法包括:产生要被编码的当前编码单元的第一预测编码单元; 确定当前编码单元是否包括位于当前图像边界之外的部分; 并且当当前编码单元不包括位于外部的部分时,通过使用第一预测编码单元的像素和像素的相邻像素来改变第一预测编码单元的像素的值来产生第二预测编码单元 当前图片的边界。 因此,可以编码作为当前编码单元和第二预测编码单元之间的差的残差块,从而提高视频预测效率。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING ROTATIONAL TRANSFORM
    9.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING ROTATIONAL TRANSFORM 失效
    使用旋转变换编码和解码图像的方法和装置

    公开(公告)号:US20110038555A1

    公开(公告)日:2011-02-17

    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 COMPRESSING IMAGE SIGNAL
    10.
    发明申请
    METHOD AND APPARATUS FOR COMPRESSING IMAGE SIGNAL 有权
    压缩图像信号的方法和装置

    公开(公告)号:US20090110317A1

    公开(公告)日:2009-04-30

    申请号:US12243204

    申请日:2008-10-01

    IPC分类号: G06K9/36

    摘要: A method of compressing image signals, to provide more efficient compression than a discrete cosine transform (DCT) while having the least amount of overhead information is provided. A partial exchange between a row and a column of a transform matrix is performed by applying several values to a parameter, which shows an extent of partial exchange between rows and columns of the transform matrix. When a value of the used angle parameter is stored or transmitted, an overhead increases. Processes generating a random sequence of the angle parameter, generating a compression coefficient matrix regarding each angle parameter of the generated random sequence, and calculating a compression rate are repeated to obtain an angle parameter with the highest compression rate. The angle parameter having the highest compression rate is not stored or transmitted, but a number in the random sequence of the corresponding angle parameter is obtained, and stored or transmitted.

    摘要翻译: 提供了具有最少量的开销信息的压缩图像信号的方法,以提供比离散余弦变换(DCT)更有效的压缩。 通过将几个值应用于参数来执行变换矩阵的行和列之间的部分交换,该参数显示了变换矩阵的行和列之间的部分交换的程度。 当使用角度参数的值被存储或传输时,开销增加。 重复生成角度参数的随机序列的处理,生成关于所生成的随机序列的每个角度参数的压缩系数矩阵以及计算压缩率的处理,得到压缩率最高的角度参数。 没有存储或发送具有最高压缩率的角度参数,而是获得相应角度参数的随机序列中的数字,并存储或发送。