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27 条记录 (耗时 0.029 秒)

    METHOD AND APPARATUS FOR ENCODING AND DECODING BASED ON INTER PREDICTION USING IMAGE INPAINTING
    11.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING BASED ON INTER PREDICTION USING IMAGE INPAINTING 审中-公开
    基于使用图像预处理的帧间预测编码和解码的方法和装置

    公开(公告)号：US20100329336A1

    公开(公告)日：2010-12-30

    申请号：US12918688

    申请日：2009-02-20

    申请人： Yu-Mi Sohn ,  Jung-Hye Min ,  Woo-Jin Han

    发明人： Yu-Mi Sohn ,  Jung-Hye Min ,  Woo-Jin Han

    IPC分类号： H04N7/50

    CPC分类号： H04N19/17 ,  H04N19/105 ,  H04N19/109 ,  H04N19/61

    摘要： Provided are a method and apparatus for encoding and decoding based on inter prediction. In the method of encoding based on inter prediction, image inpainting is performed by searching for at least one reference picture by using pixels that are adjacent to the boundary between a current block and a previously encoded region of a current picture and are included in the previously encoded region, and the current block is encoded based on a predicted block obtained as the result of performing image inpainting. Accordingly, it is possible to precisely generate a predicted block, thereby improving the compression rate of image encoding.

    摘要翻译： 提供了一种基于帧间预测的编码和解码的方法和装置。 在基于帧间预测的编码方法中，通过使用与当前图像的当前块和先前编码区域之间的边界相邻的像素搜索至少一个参考图像来执行图像修像，并且包括在先前 编码区域，并且基于作为执行图像修复的结果获得的预测块来编码当前块。 因此，可以精确地生成预测块，从而提高图像编码的压缩率。

    Video coding method and apparatus for reducing mismatch between encoder and decoder
    13.
    发明申请
    Video coding method and apparatus for reducing mismatch between encoder and decoder 审中-公开
    用于减少编码器和解码器之间的不匹配的视频编码方法和装置

    公开(公告)号：US20060250520A1

    公开(公告)日：2006-11-09

    申请号：US11402842

    申请日：2006-04-13

    申请人： Woo-Jin Han ,  Bae-Keun Lee

    发明人： Woo-Jin Han ,  Bae-Keun Lee

    IPC分类号： H04N11/02

    CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/31 ,  H04N19/61 ,  H04N19/63

    摘要： A method of reducing a mismatch between an encoder and a decoder in motion compensated temporal filtering, and a video coding method and apparatus using the same. The video coding method includes dividing input frames into one final low-frequency frame and at least one high-frequency frame by performing motion compensated temporal filtering on the input frames; encoding the final low-frequency frame and decoding the encoded final low-frequency frame; re-estimating the at least one high-frequency frame using the decoded final low-frequency frame; and encoding the re-estimated high-frequency frame.

    摘要翻译： 一种在运动补偿时间滤波中减少编码器与解码器之间的失配的方法，以及使用该滤波器的视频编码方法和装置。 视频编码方法包括：通过对输入帧进行运动补偿时间滤波，将输入帧划分成一个最终低频帧和至少一个高频帧; 编码最终的低频帧并解码编码的最终低频帧; 使用解码的最终低频帧重新估计至少一个高频帧; 并对重新估计的高频帧进行编码。

    METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO USING EXPANDED BLOCK FILTERING
    16.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO USING EXPANDED BLOCK FILTERING 审中-公开
    使用扩展块过滤编码和解码视频的方法和装置

    公开(公告)号：US20130177081A1

    公开(公告)日：2013-07-11

    申请号：US13697960

    申请日：2011-05-16

    申请人： Jianle Chen ,  Woo-Jin Han ,  Nikolay Shlyakhov ,  Vadim Seregin

    发明人： Jianle Chen ,  Woo-Jin Han ,  Nikolay Shlyakhov ,  Vadim Seregin

    IPC分类号： H04N7/26

    CPC分类号： H04N19/80 ,  H04N19/523 ,  H04N19/59 ,  H04N19/82

    摘要： Methods and apparatuses for encoding and decoding a video are provided. The method of encoding a video includes generating an extended corresponding block by extending a corresponding block of a reference picture; generating a filtered extended corresponding block by using a predetermined first filter; performing interpolation in sub-pixel units by using a predetermined second filter; and performing motion prediction and compensation by using the reference picture that is interpolated in the sub-pixel units. The method of decoding a video includes extracting information of a current block; generating an extended corresponding block by extending a corresponding block of a reference picture; generating a filtered extended corresponding block by applying a predetermined first filter to the extended corresponding block; performing interpolation in sub-pixel units by applying a predetermined second filter to the filtered extended corresponding block; and performing motion compensation by using the reference picture that is interpolated in the sub-pixel units.

    摘要翻译： 提供了对视频进行编码和解码的方法和装置。 编码视频的方法包括：通过扩展参考图片的相应块来产生扩展的对应块; 通过使用预定的第一滤波器产生滤波的扩展相应块; 通过使用预定的第二滤波器以子像素单位执行内插; 以及通过使用在子像素单元内插的参考图像来执行运动预测和补偿。 解码视频的方法包括提取当前块的信息; 通过扩展参考图片的相应块来产生扩展的对应块; 通过对扩展的对应块应用预定的第一过滤器来生成经滤波的扩展对应块; 通过对经滤波的扩展对应块应用预定的第二滤波器来执行子像素单元的内插; 以及通过使用在子像素单元内插的参考图像来执行运动补偿。

    IMAGE INTERPOLATION METHOD AND APPARATUS
    17.
    发明申请
    IMAGE INTERPOLATION METHOD AND APPARATUS 有权
    图像插值方法和装置

    公开(公告)号：US20130156346A1

    公开(公告)日：2013-06-20

    申请号：US13809364

    申请日：2011-07-11

    申请人： Tammy Lee ,  Woo-Jin Han

    发明人： Tammy Lee ,  Woo-Jin Han

    IPC分类号： G06T3/40

    CPC分类号： G06T3/4007 ,  H04N7/0117 ,  H04N7/0135 ,  H04N19/117 ,  H04N19/157 ,  H04N19/176 ,  H04N19/523 ,  H04N19/59

    摘要： An image interpolation method and apparatus are provided. The image interpolation method includes: selecting different interpolation filters according to locations of sub pixels between integer pixels; and generating sub pixel values at the locations of the sub pixels using the selected interpolation filters.

    摘要翻译： 提供了一种图像插值方法和装置。 图像插值方法包括：根据整数像素之间的子像素的位置来选择不同的插值滤波器; 以及使用所选择的内插滤波器在子像素的位置处生成子像素值。

    Video encoding method and device and decoding method and device
    18.
    发明授权
    Video encoding method and device and decoding method and device 有权
    视频编码方法及装置及解码方法及装置

    公开(公告)号：US09350997B2

    公开(公告)日：2016-05-24

    申请号：US13876778

    申请日：2011-09-28

    申请人： Yoon-Mi Hong ,  Woo-Jin Han ,  Min-Su Cheon ,  Jianle Chen

    发明人： Yoon-Mi Hong ,  Woo-Jin Han ,  Min-Su Cheon ,  Jianle Chen

    IPC分类号： G06F17/14 ,  H04N19/60 ,  H04N19/625

    CPC分类号： H04N19/60 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/625

    摘要： A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus, the video encoding method including producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a predetermined-size block; producing a transformed block by transforming the predetermined-size block by using the fast transform matrix; and performing scaling with respect to the transformed block to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.

    摘要翻译： 一种视频编码方法，视频编码装置，视频解码方法和视频解码装置，所述视频编码方法包括：基于用于预定大小块上的频率变换的变换矩阵产生快速变换矩阵; 通过使用快速变换矩阵变换预定大小的块来产生变换的块; 并且对变换的块进行缩放以校正用于频率变换的变换矩阵与快速变换矩阵之间的差异。

    Method and apparatus for entropy encoding/decoding
    20.
    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

    申请人： Bae-Keun Lee ,  Kyo-Hyuk Lee ,  Woo-Jin Han

    发明人： Bae-Keun Lee ,  Kyo-Hyuk Lee ,  Woo-Jin Han

    IPC分类号： H04N7/12

    CPC分类号： H04N19/34 ,  H04N19/124 ,  H04N19/187 ,  H04N19/61

    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。