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    Method and apparatus for encoding frequency transformed block using frequency mask table, and method and apparatus for encoding/decoding video using same
    52.
    发明授权
    Method and apparatus for encoding frequency transformed block using frequency mask table, and method and apparatus for encoding/decoding video using same 有权
    使用频率掩码表对频率变换块进行编码的方法和装置，以及使用其对视频进行编码/解码的方法和装置

    公开(公告)号：US09497461B2

    公开(公告)日：2016-11-15

    申请号：US13878352

    申请日：2011-09-30

    申请人： Jinhan Song ,  Jeongyeon Lim ,  Haekwang Kim ,  Joohee Moon ,  Yunglyul Lee ,  Jongki Han ,  Byeungwoo Jeon

    发明人： Jinhan Song ,  Jeongyeon Lim ,  Haekwang Kim ,  Joohee Moon ,  Yunglyul Lee ,  Jongki Han ,  Byeungwoo Jeon

    IPC分类号： H04N19/105 ,  H04N19/463 ,  H04N19/132 ,  H04N19/18 ,  H04N19/126 ,  H04N19/129 ,  H04N19/176

    CPC分类号： H04N19/105 ,  H04N19/126 ,  H04N19/129 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463

    摘要： A video encoding/decoding apparatus including a video encoder for generating a prediction block, generating a residual block by subtracting the prediction block from the current block. The video encoder is for generating a frequency-transformed block by transforming and quantizing the residual block, generating a masked frequency-transformed block by masking the frequency-transformed block by using one or more frequency mask tables. The video encoder is for encoding information about a frequency mask table used for masking the masked frequency-transformed block. The apparatus includes a video decoder for extracting a masked quantized frequency coefficient string recorded in the bitstream. The video decoder is for generating a quantized frequency coefficient string by zero setting all quantized frequency coefficients at positions of no records in the bitstream from a masked quantized frequency coefficient string. The video decoder is for generating a quantized frequency-transformed block by inversely scanning the generated quantized frequency coefficient string.

    摘要翻译： 一种视频编码/解码装置，包括用于产生预测块的视频编码器，通过从当前块中减去预测块来产生残差块。 视频编码器用于通过变换和量化残差块来产生频率变换块，通过使用一个或多个频率掩码表掩蔽频率变换块来产生屏蔽的频率变换块。 视频编码器用于编码用于屏蔽被屏蔽的频率变换块的频谱表的信息。 该装置包括用于提取记录在比特流中的被掩蔽的量化频率系数串的视频解码器。 视频解码器用于通过将位流中没有记录的位置处的所有量化频率系数与掩蔽的量化频率系数串进行零设置来生成量化频率系数串。 视频解码器用于通过对生成的量化频率系数串进行逆扫描来生成量化的频率变换块。

    Apparatus and method for encoding images, and apparatus and method for decoding images
    55.
    发明授权
    Apparatus and method for encoding images, and apparatus and method for decoding images 有权
    用于编码图像的装置和方法，以及用于对图像进行解码的装置和方法

    公开(公告)号：US08768083B2

    公开(公告)日：2014-07-01

    申请号：US13581206

    申请日：2011-02-25

    申请人： Jeongyeon Lim ,  Sunyeon Kim ,  Gyumin Lee ,  Jaehoon Choi ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Youngjoe Yoo

    发明人： Jeongyeon Lim ,  Sunyeon Kim ,  Gyumin Lee ,  Jaehoon Choi ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Youngjoe Yoo

    IPC分类号： G06K9/36 ,  H04N7/26 ,  H04N7/32 ,  H04N7/34

    CPC分类号： H04N19/00278 ,  G06K9/36 ,  H04N19/176 ,  H04N19/50 ,  H04N19/51 ,  H04N19/593

    摘要： Image encoding/decoding apparatus and method are disclosed. The image encoding apparatus includes: a target block splitter for splitting a target block of an input image to be encoded into a plurality of subblocks according to positions of pixels; a key block encoding unit for selecting a random key block, the size of which is larger than a pixel size of at least one of the plurality of subblocks split by the target block splitter, and performing an intra-prediction or inter-prediction encoding process on the selected key block; and a non-key block encoding unit for designating the rest of the subblocks, except for the selected key block, as a non-key block, and performing a spatial prediction process on the designated non-key block by using a key block reconstructed by the key block encoding unit and values of peripheral pixels of a current block.

    摘要翻译： 公开了图像编码/解码装置和方法。 图像编码装置包括：目标块分割器，用于根据像素的位置将待编码的输入图像的目标块分割成多个子块; 键块编码单元，用于选择其尺寸大于由目标块分割器分割的多个子块中的至少一个的像素大小的随机密钥块，并且执行帧内预测或帧间预测编码处理 在选定的关键块上; 以及非密钥块编码单元，用于将除所选择的密钥块之外的其余子块指定为非密钥块，并且通过使用由所述密钥块重建的密钥块对所述指定的非密钥块执行空间预测处理， 密钥块编码单元和当前块的周边像素的值。