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    • 31. 发明申请
    • METHOD AND APPARATUS FOR SELECTING A PREDICTION MODE, AND IMAGE ENCODING/DECODING METHOD AND APPARATUS USING SAME
    • 用于选择预测模式的方法和装置,以及使用其的图像编码/解码方法和装置
    • US20120039388A1
    • 2012-02-16
    • US13264311
    • 2010-04-14
    • Sunyeon KimYunglyul LeeJoohee MoonHaekwang KimByeungwoo JeonDaeyeon Kim
    • Sunyeon KimYunglyul LeeJoohee MoonHaekwang KimByeungwoo JeonDaeyeon Kim
    • H04N7/32
    • H04N19/11H04N19/14H04N19/61
    • The present disclosure concerns a method and apparatus for selecting an intra prediction mode and a video encoding/decoding method and apparatus using same. The encoding apparatus selects an intra prediction mode of current block to encode from input video by a variation of the value of pixel adjacent to the current block; encodes a residual block from intra-predicting the current block in the selected intra prediction mode of current block to generate coded coefficient bit having a bitstream generator for generating and outputting a bitstream including the coded coefficient bit and a prediction mode bit representing the selected intra prediction mode of current block by a macroblock or subblock unit with the prediction mode bit included selectively in the bitstream depending on the variation. Accordingly, selection process of a prediction mode for image compression is simplified, a faster compression is obtained and compressed data is deflated to improve compression efficiency.
    • 本公开涉及用于选择帧内预测模式的方法和装置以及使用其的视频编码/解码方法和装置。 编码装置通过与当前块相邻的像素的值的变化来选择当前块的帧内预测模式以从输入视频进行编码; 对当前块的所选择的帧内预测模式中的当前块进行预测的残差块进行编码,以生成具有比特流发生器的编码系数比特,用于生成并输出包括编码的系数比特和包含所选择的帧内预测的预测模式比特 具有预测模式位的宏块或子块单元的当前块的模式根据变化选择性地包含在比特流中。 因此,简化了用于图像压缩的预测模式的选择处理,获得了更快的压缩,压缩数据被缩小以提高压缩效率。
    • 33. 发明申请
    • METHOD FOR ENCODING/DECODING MOTION VECTOR AND APPARATUS THEREOF
    • 编码/解码运动矢量及其装置的方法
    • US20110170601A1
    • 2011-07-14
    • US13001599
    • 2009-06-19
    • Hayoon KimByeungwoo JeonYunglyul LeeJoohee MoonHaekwang KimJungyoup YangKwanghyun Won
    • Hayoon KimByeungwoo JeonYunglyul LeeJoohee MoonHaekwang KimJungyoup YangKwanghyun Won
    • H04N7/12
    • H04N19/52H04N19/105H04N19/176H04N19/184H04N19/46
    • A method for encoding/decoding a motion vector and an apparatus thereof are disclosed. The method includes defining a candidate motion vector set with respect to a current motion vector; selecting a predicted motion vector from the candidate motion vector set; determining a predictability of the predicted motion vector in a decoding apparatus; encoding the current motion vector by using a motion vector prediction mode for indicating the predicted motion vector and the predictability, if the predictability is determined positive; and encoding the current motion vector by using a motion vector prediction mode for indicating a default predicted motion vector and an unpredictability, if the predictability is determined negative. According to the disclosure, it becomes unnecessary to directly notify of the predicted motion vector of the current motion vector to the decoding apparatus, and instead a predetermined shared function is provided to inform of or search the predicted motion vector.
    • 公开了一种用于编码/解码运动矢量的方法及其装置。 该方法包括定义相对于当前运动矢量设置的候选运动矢量; 从所述候选运动矢量集中选择预测的运动矢量; 确定解码装置中预测的运动矢量的可预测性; 通过使用用于指示预测运动矢量的运动矢量预测模式和可预测性,如果可预测性被确定为正,则对当前运动矢量进行编码; 并且如果可预测性被确定为负,则使用用于指示默认预测运动矢量的运动矢量预测模式和不可预测性来编码当前运动矢量。 根据本公开,不需要将直接通知当前运动矢量的预测运动矢量到解码装置,而是提供预定的共享功能来通知或搜索预测的运动矢量。
    • 37. 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。
    • 39. 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。