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    METHOD AND APPARATUS FOR ENCODING AND DECODING VIDEO USING EXPANDED BLOCK FILTERING
    12.
    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
    13.
    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。

    Method of multi-layer based scalable video encoding and decoding and apparatus for the same
    14.
    发明申请
    Method of multi-layer based scalable video encoding and decoding and apparatus for the same 审中-公开
    多层次可分级视频编解码方法及其设备

    公开(公告)号：US20060165302A1

    公开(公告)日：2006-07-27

    申请号：US11336826

    申请日：2006-01-23

    申请人： Woo-Jin Han ,  Sang-Chang Cha ,  Bae-Keun Lee ,  Ho-Jin Ha

    发明人： Woo-Jin Han ,  Sang-Chang Cha ,  Bae-Keun Lee ,  Ho-Jin Ha

    IPC分类号： G06K9/46

    CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/31 ,  H04N19/513 ,  H04N19/53 ,  H04N19/61 ,  H04N19/63

    摘要： A method of multi-layer based scalable video encoding and decoding and an apparatus for the same are disclosed. The encoding method includes the steps of estimating motion between a base layer frame that is placed at a temporal location closest to a current frame of an enhancement layer, and a frame that is backwardly adjacent to the base layer frame to acquire a motion vector, generating a residual image by subtracting the backwardly adjacent frame from the base layer frame, generating a virtual forward reference frame using the motion vector, the residual image and the base layer frame, and generating a predicted frame with respect to the current frame using the virtual forward reference frame, and encoding the difference between the current frame and the predicted frame.

    摘要翻译： 公开了一种基于多层的可分级视频编码和解码方法及其装置。 编码方法包括以下步骤：估计位于最靠近增强层的当前帧的时间位置的基本层帧与后向邻近基本帧帧的帧以获取运动矢量之间的运动，生成 通过从基本层帧减去后向相邻帧的残差图像，使用运动矢量，残差图像和基本层帧生成虚拟正向参考帧，并且使用虚拟向前生成关于当前帧的预测帧 参考帧，并对当前帧与预测帧之间的差进行编码。

    Video encoding method and device and decoding method and device
    15.
    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 effectively compressing motion vectors in multi-layer structure
    18.
    发明申请
    Method and apparatus for effectively compressing motion vectors in multi-layer structure 有权
    多层结构中有效压缩运动矢量的方法和装置

    公开(公告)号：US20050220190A1

    公开(公告)日：2005-10-06

    申请号：US11094201

    申请日：2005-03-31

    申请人： Ho-Jin Ha ,  Sang-Chang Cha ,  Woo-Jin Han

    发明人： Ho-Jin Ha ,  Sang-Chang Cha ,  Woo-Jin Han

    IPC分类号： H04N7/32 ,  H04N7/12 ,  H04N7/26

    CPC分类号： H04N19/53 ,  H04N19/52

    摘要： A method and an apparatus for elevating compression efficiency of a motion vector by effectively predicting a motion vector of an enhanced layer by means of a motion vector of a base layer in a video coding method employing a multi-layer structure are disclosed. A motion vector compression apparatus includes: a down-sampling module for down-sampling an original frame to have a size of a frame in each layer; a motion vector search module for obtaining a motion vector in which an error or a cost function is minimized with respect to the down-sampled frame; a reference vector generation module for generating a reference motion vector in a predetermined enhanced layer by means of a block of a lower layer corresponding to a predetermined block in the predetermined enhanced layer, and motion vectors in blocks around the block; and a motion difference module for calculating a difference between the obtained motion vector and the reference motion vector.

    摘要翻译： 公开了一种通过在采用多层结构的视频编码方法中借助于基本层的运动矢量有效地预测增强层的运动矢量来提高运动矢量的压缩效率的方法和装置。 运动矢量压缩装置包括：下采样模块，用于对原始帧进行下采样以具有每层中的帧的大小; 运动矢量搜索模块，用于获得相对于下采样帧最小化误差或成本函数的运动矢量; 参考矢量生成模块，用于通过与预定增强层中的预定块相对应的下层的块和在块周围的块中的运动矢量来生成预定增强层中的参考运动矢量; 以及用于计算所获得的运动矢量和参考运动矢量之间的差的运动差分模块。

    VIDEO ENCODING METHOD AND DEVICE AND DECODING METHOD AND DEVICE
    19.
    发明申请
    VIDEO ENCODING METHOD AND DEVICE AND DECODING METHOD AND DEVICE 有权
    视频编码方法和装置及解码方法和装置

    公开(公告)号：US20130188730A1

    公开(公告)日：2013-07-25

    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： H04N7/26

    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。

    IMAGE FILTERING METHOD USING PSEUDO-RANDOM NUMBER FILTER AND APPARATUS THEREOF
    20.
    发明申请
    IMAGE FILTERING METHOD USING PSEUDO-RANDOM NUMBER FILTER AND APPARATUS THEREOF 有权
    使用PSEUDO随机数滤波器的图像滤波方法及其设备

    公开(公告)号：US20120141041A1

    公开(公告)日：2012-06-07

    申请号：US13379088

    申请日：2010-06-18

    申请人： Hak-Sup Song ,  Sun-Mi Park ,  Woo-Jin Han

    发明人： Hak-Sup Song ,  Sun-Mi Park ,  Woo-Jin Han

    IPC分类号： G06K9/40 ,  G06K9/36

    CPC分类号： H04N19/86

    摘要： An image filtering method and apparatus that filter a block of a plane area by using a pseudo-random filter are provided, whereby artifacts generated in image encoding and decoding procedures are removed, the method including: determining a similarity between pixel values of a the first block; and generating a second block by selectively applying a pseudo-random filter on the first block according to a result of based on the determining the determined similarity.

    摘要翻译： 提供了一种通过使用伪随机滤波器来对平面区域的块进行滤波的图像滤波方法和装置，由此去除了在图像编码和解码过程中产生的伪像，该方法包括：确定第一 块; 以及根据确定所确定的相似度的结果，通过在所述第一块上选择性地应用伪随机滤波器来产生第二块。