中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

518 records (took 0.045 seconds)

    METHOD AND DEVICE FOR GENERATING A PREDICTION BLOCK TO ENCODE AND DECODE AN IMAGE
    388.
    发明申请
    METHOD AND DEVICE FOR GENERATING A PREDICTION BLOCK TO ENCODE AND DECODE AN IMAGE 审中-公开
    用于产生预测块来编码和解码图像的方法和装置

    公开(公告)号：US20160255362A1

    公开(公告)日：2016-09-01

    申请号：US15151097

    申请日：2016-05-10

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hui Yong KIM ,  Jin Ho LEE ,  Sung Chang LIM ,  Jin Soo CHOI ,  Jin Woong KIM

    IPC: H04N19/51 ,  H04N19/593 ,  H04N19/52 ,  H04N19/105 ,  H04N19/182

    CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/182 ,  H04N19/196 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82

    Abstract: A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a final correction value that is calculated by performing an arithmetic right shift by a binary digit 1 for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. Thus, the operational complexity during image encoding/decoding can be reduced.

    Abstract translation: 根据本发明的用于解码图像的方法包括以下步骤：通过对熵解码的残余块执行逆量化和逆变换来恢复残差块; 通过对当前块执行帧内预测来生成预测块; 以及通过将所述恢复的残差块加到所述预测块中来恢复图像，其中，所述生成所述预测块的步骤还包括根据所述预测块的第一预测值生成要预测的像素的最终预测值的步骤 要包括在当前块中的要预测的像素，以及通过针对二进制补码整数表示相对于像素的初始校正值对二进制数1执行算术右移而计算的最终校正值， 被预测。 因此，可以降低图像编码/解码期间的操作复杂度。

    METHOD FOR ENCODING/DECODING IMAGE AND DEVICE USING SAME
    389.
    发明申请
    METHOD FOR ENCODING/DECODING IMAGE AND DEVICE USING SAME 审中-公开
    使用该方法编码/解码图像和装置的方法

    公开(公告)号：US20160241866A1

    公开(公告)日：2016-08-18

    申请号：US15027101

    申请日：2014-10-07

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

    IPC: H04N19/46 ,  H04N19/70 ,  H04N19/196 ,  H04N19/187 ,  H04N19/177 ,  H04N19/30 ,  H04N19/44

    CPC classification number: H04N19/187 ,  H04N19/107 ,  H04N19/157 ,  H04N19/30 ,  H04N19/503

    Abstract: A method of decoding a bistream comprising a plurality of layers according to the present invention includes setting parameters for decoding the bitstream from a random access point when random access occurs, and decoding a decoding target picture, wherein the setting of the parameters includes setting an initialization flag indicating whether the decoding target picture, that is an intra random access point (IRAP) picture, is output by correctly decoding all reference layers of a target layer including the decoding target picture when the random access occurs; setting a flag variable (NoRaslOutputFlag) indicating whether the decoding target picture is used as a random access point; and resetting the initialization flag when the decoding target picture is an IRAP picture and the flag variable is 1.

    Abstract translation: 根据本发明的包括多个层的双向数据包的解码方法包括当随机访问发生时从随机接入点设置用于解码比特流的参数，以及对解码目标图像进行解码，其中参数的设置包括设置初始化 指示当随机访问发生时通过正确地解码包括解码目标图像的目标层的所有参考层来输出解码对象图像（即，内部随机接入点（IRAP））图像的输出; 设置指示解码对象图像是否用作随机接入点的标志变量（NoRaslOutputFlag）; 并且当解码目标图像是IRAP图像并且标志变量为1时，复位初始化标志。

Patent Agency Ranking