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    • 52. 发明申请
    • IMAGE ENCODING/DECODING METHOD AND DEVICE USING COEFFICIENTS OF ADAPTIVE INTERPOLATION FILTER
    • 图像编码/解码方法和使用自适应滤波器的系数的设备
    • US20110200099A1
    • 2011-08-18
    • US13125956
    • 2009-10-16
    • Hayoon KimDonghoon HanKioh KimDaeyeon KimYunglyul LeeJoohee MoonHaekwang KimByeungwoo Jeon
    • Hayoon KimDonghoon HanKioh KimDaeyeon KimYunglyul LeeJoohee MoonHaekwang KimByeungwoo Jeon
    • H04N7/26
    • H04N19/117H04N19/139H04N19/14H04N19/172H04N19/176H04N19/523H04N19/61
    • An image encoding/decoding method and apparatus using coefficients of an adaptive interpolation filter are disclosed including: a coefficient calculator for calculating adaptive interpolation filter coefficient of a current frame; an image encoder for interpolating reference frames using the adaptive interpolation filter coefficient of the current frame and encoding the current frame using the interpolated reference frames; a filter flag encoder for generating and encoding a coefficient-inserted flag or coefficient non-inserted flag as a filter flag according to the adaptive interpolation filter coefficient of the current frame; a coefficient encoder for encoding the adaptive interpolation filter coefficient of the current frame when the filter flag is a coefficient-inserted flag; and a bit stream generator for generating and outputting a bit stream, which includes the encoded current frame and encoded filter flag, and further includes encoded adaptive interpolation filter coefficient of the current frame when the filter flag is the coefficient-inserted flag.
    • 公开了一种使用自适应内插滤波器的系数的图像编码/解码方法和装置,包括:用于计算当前帧的自适应内插滤波器系数的系数计算器; 图像编码器,用于使用当前帧的自适应内插滤波器系数内插参考帧,并使用内插的参考帧对当前帧进行编码; 滤波器标志编码器​​,用于根据当前帧的自适应内插滤波器系数产生和编码系数插入标志或系数未插入标志作为滤波器标志; 系数编码器,用于当滤波器标志是系数插入标志时对当前帧的自适应内插滤波器系数进行编码; 以及比特流发生器,用于产生和输出包括编码的当前帧和编码的滤波器标志的比特流,并且当滤波器标志是系数插入标志时,还包括当前帧的编码的自适应内插滤波器系数。
    • 58. 发明授权
    • Method and apparatus for intra-prediction encoding/decoding
    • 用于帧内预测编码/解码的方法和装置
    • US09451262B2
    • 2016-09-20
    • US13391583
    • 2010-08-21
    • Sunyeon KimYunglyul LeeJoohee MoonHaekwang KimByeungwoo JeonDaeyeon KimJeongyeon Lim
    • Sunyeon KimYunglyul LeeJoohee MoonHaekwang KimByeungwoo JeonDaeyeon KimJeongyeon Lim
    • H04N7/32H04N19/11H04N19/70H04N19/61
    • H04N19/11H04N19/61H04N19/70
    • The present disclosure provides a method and apparatus for intra prediction encoding/decoding. The method includes: selecting an intra prediction mode of each block to be encoded; encoding a residual block generated through an intra prediction of the block according to the selected intra prediction mode to generate a coefficient bit; encoding a mode identifier for indicating the intra prediction mode according to the predetermined mode determination method to generate a mode bit; generating a bitstream including a mode bit field including a mode bit for one or more blocks and a coefficient bit field including a coefficient bit for the block; and including a mode bit field pointer for identifying the mode bit field in the bitstream. The present disclosure simplifies the process of selecting a prediction mode in a video compression to improve a compression speed and decreases a size of compressed data to improve the compression efficiency.
    • 本公开提供了一种用于帧内预测编码/解码的方法和装置。 该方法包括:选择要编码的每个块的帧内预测模式; 根据所选择的帧内预测模式对通过块的帧内预测生成的残差块进行编码,生成系数比特; 根据预定模式确定方法编码用于指示帧内预测模式的模式标识符,以生成模式比特; 生成包括包括一个或多个块的模式位的模式位字段和包括用于块的系数位的系数位字段的比特流; 并且包括用于识别比特流中的模式比特字段的模式比特字段指针。 本公开简化了在视频压缩中选择预测模式的过程,以提高压缩速度并减小压缩数据的大小以提高压缩效率。
    • 60. 发明授权
    • Image encoding/decoding apparatus and method using multi-dimensional integer transform
    • 图像编码/解码装置和使用多维整数变换的方法
    • US09386324B2
    • 2016-07-05
    • US13380725
    • 2010-06-22
    • Sunyeon KimJoohee MoonYunglyul LeeHaekwang KimByeungwoo JeonMincheol ParkDongwon Kim
    • Sunyeon KimJoohee MoonYunglyul LeeHaekwang KimByeungwoo JeonMincheol ParkDongwon Kim
    • H04N19/61H04N19/147H04N19/122
    • H04N19/61H04N19/122H04N19/147
    • The present disclosure relates to a video encoding/decoding apparatus and method using a multi-dimensional integer transform. The video encoding method of the present disclosure includes: decomposing subblocks in units of a rectangular block and successively encoding rectangular block units to output a rectangularly encoded bitstream of each subblock; encoding the subblocks in units of a square block to output a squarely encoded bitstream of each subblock; calculating an encoding cost involving at least one rectangularly encoded bitstream; calculating an encoding cost not involving the rectangularly encoded bitstream; and on the basis of the calculations, using one or more of the squarely encoded bitstream and the rectangularly encoded bitstream to generate and output the bitstream of the macroblock. According to the disclosure, since the coding scheme for encoding or decoding a video with a higher efficiency is selectively determined, the prediction accuracy can increase and thereby improve the video encoding efficiency.
    • 本公开涉及使用多维整数变换的视频编码/解码装置和方法。 本公开的视频编码方法包括:以矩形块为单位分解子块,并连续编码矩形块单位,以输出每个子块的矩形编码比特流; 以方块为单位对子块进行编码,以输出每个子块的正交编码比特流; 计算涉及至少一个矩形编码比特流的编码成本; 计算不涉及矩形编码比特流的编码成本; 并且在计算的基础上,使用一个或多个正交编码比特流和矩形编码的比特流来生成并输出该宏块的比特流。 根据本公开,由于选择性地确定用于编码或解码具有更高效率的视频的编码方案,所以可以增加预测精度,从而提高视频编码效率。