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    • 51. 发明申请
    • METHOD AND APPARATUS FOR ENCODING FREQUENCY CONVERSION BLOCK USING FREQUENCY MASK TABLE, AND METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO USING SAME
    • 使用频率掩码表编码频率转换块的方法和装置以及使用其编码/解码视频的方法和装置
    • WO2012046979A2
    • 2012-04-12
    • PCT/KR2011007281
    • 2011-09-30
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONKIM HAEKWANGMOON JOOHEELEE YUNGLYULHAN JONGKIJEON BYEUNGWOO
    • SONG JINHANLIM JEONGYEONKIM HAEKWANGMOON JOOHEELEE YUNGLYULHAN JONGKIJEON BYEUNGWOO
    • H04N7/32H04N7/30
    • H04N19/105H04N19/126H04N19/129H04N19/132H04N19/176H04N19/18H04N19/463
    • One embodiment of the present invention relates to a method and an apparatus for encoding a frequency conversion block using a frequency mask table, and to a method and an apparatus for encoding/decoding video using same. One embodiment of the present invention provides the method and the apparatus for encoding the frequency conversion block using the frequency mask table, and the method and the apparatus for encoding/decoding video using same, comprising the following steps: generating a masked frequency conversion block by masking the frequency conversion block using the frequency mask table; encoding information on the frequency conversion block and the frequency mask table, which is used for masking the frequency conversion block; a decoding end extracting information on the frequency mask table so as to extract a masked quantized frequency coefficient row which is recorded on a bit stream; setting to 0 all of the quantized frequency coefficients in a location that is not recorded on the bitstream by using the extracted information on the frequency mask table, for generating the quantized frequency coefficient row; and reverse-scanning the generated quantized frequency coefficient row for forming and encoding the quantized frequency conversion block.
    • 本发明的一个实施例涉及一种使用频率掩码表对频率转换块进行编码的方法和装置,以及一种使用其编码/解码视频的方法和装置。 本发明的一个实施例提供了使用频率掩码表对频率转换块进行编码的方法和装置,以及使用其编码/解码视频的方法和装置,包括以下步骤:通过以下步骤产生屏蔽的频率转换块: 使用频率掩码表屏蔽频率转换块; 编码用于屏蔽频率转换块的频率转换块和频谱表的信息; 解码端提取关于频率掩码表的信息,以提取记录在比特流上的被掩蔽的量化频率系数行; 通过使用提取的信息在频谱表上将未记录在比特流中的位置中的所有量化频率系数设置为0,以产生量化频率系数行; 并反向扫描生成的量化频率系数行,以形成和编码量化的频率转换块。
    • 52. 发明申请
    • APPARATUS AND METHOD FOR MOTION VECTOR ENCODING/DECODING, AND APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING SAME
    • 用于运动矢量编码/解码的设备和方法以及用于使用相同编码/解码的图像编码/解码的设备和方法
    • WO2010085064A3
    • 2010-09-23
    • PCT/KR2010000248
    • 2010-01-15
    • SK TELECOM CO LTDKIM SUNYEONJEON BYEUNGWOOYANG JUNGYOUPWON KWANGHYUNMOON JOOHEELEE YUNGLYULKIM HAEKWANG
    • KIM SUNYEONJEON BYEUNGWOOYANG JUNGYOUPWON KWANGHYUNMOON JOOHEELEE YUNGLYULKIM HAEKWANG
    • H04N7/32H04N7/24
    • H04N19/521G06T9/00H04N19/103H04N19/107H04N19/124H04N19/139H04N19/167H04N19/176H04N19/182H04N19/51H04N19/52
    • The present invention relates to an apparatus and to a method for motion vector encoding/decoding, and to an apparatus and to a method for image encoding/decoding using same. The motion vector encoding apparatus of the present invention comprises: a predicted motion vector selector for selecting an optimum predicted motion vector from among the candidate motion vector group of the current block; a prediction mode determiner for selecting one motion vector prediction mode from among a plurality of motion vector prediction modes on the basis of the determination criteria previously agreed upon by a motion vector decoding apparatus, and determining the selected motion vector prediction mode as a motion vector prediction mode of the current block; and an encoder for determining the optimum predicted motion vector or a default predicted motion vector as a predicted motion vector for the current motion vector in accordance with the determined motion vector prediction mode, encoding a differential vector between the current block and the determined predicted motion vector, and selectively encoding the determined motion vector prediction mode in accordance with the determined motion vector prediction mode and outputting the encoded motion vector prediction mode in accordance with the determined motion vector prediction mode. The present invention reduces bit rates required for encoding a motion vector to thereby improve encoding efficiency, and prevents failures in the encoder even when an error occurs during encoding thereby improving the performance of the encoder.
    • 用于运动矢量编码/解码的设备和方法以及用于使用它的图像编码/解码的设备和方法技术领域本发明涉及用于运动矢量编码/ 本发明的运动矢量编码装置包括:预测运动矢量选择器,用于从当前块的候选运动矢量组当中选择最佳预测运动矢量; 预测模式确定器,用于基于先前由运动向量解码设备约定的确定标准,从多个运动向量预测模式中选择一个运动向量预测模式,并且将所选择的运动向量预测模式确定为运动向量预测 当前块的模式; 以及编码器,用于根据确定的运动矢量预测模式将最优预测运动矢量或默认预测运动矢量确定为当前运动矢量的预测运动矢量,对当前块与确定的预测运动矢量之间的差分矢量进行编码 以及根据所确定的运动矢量预测模式来选择性地编码所确定的运动矢量预测模式,并且根据所确定的运动矢量预测模式来输出编码的运动矢量预测模式。 本发明降低了编码运动矢量所需的比特率,从而提高了编码效率,并且即使在编码期间发生错误时也防止了编码器中的故障,从而提高了编码器的性能。
    • 53. 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
    • WO2010120113A3
    • 2011-01-06
    • PCT/KR2010002307
    • 2010-04-14
    • SK TELECOM CO LTDKIM SUNYEONLEE YUNGLYULMOON JOOHEEKIM HAEKWANGJEON BYEUNGWOOKIM DAEYEON
    • KIM SUNYEONLEE YUNGLYULMOON JOOHEEKIM HAEKWANGJEON BYEUNGWOOKIM DAEYEON
    • H04N7/32
    • H04N19/11H04N19/14H04N19/61
    • The present invention relates to a method and apparatus for selecting a prediction mode, and to an image encoding/decoding method and apparatus using same. The image encoding apparatus according to the present invention comprises a bit stream generator for: selecting an intra-prediction mode of a current block based on a variation in pixel values of adjacent pixels of the current block to be encoded in an input image, performing intra-prediction of the current block according to the intra-prediction mode of the selected current block, encoding generated remaining blocks, and generating encoded coefficient bits; generating and outputting a bitstream including the encoded coefficient bits and prediction mode bits indicating the intra-prediction mode of the selected current block in macroblock units or sub-block units; and selectively including the prediction mode bits in the bitstream based on the variation. According to the present invention, the selection process of a prediction mode for image compression can be simplified, the compression rate can be increased, and the size of compressed data can be reduced, to improve compression efficiency.
    • 本发明涉及一种用于选择预测模式的方法和装置,以及涉及使用它的图像编码/解码方法和装置。 根据本发明的图像编码装置包括:位流发生器,用于:基于要在输入图像中编码的当前块的相邻像素的像素值的变化来选择当前块的帧内预测模式,执行帧内预测模式 根据所选择的当前块的帧内预测模式预测当前块,编码所产生的剩余块并生成编码系数比特; 以宏块单位或子块单位生成并输出包括编码的系数比特和指示所选择的当前块的帧内预测模式的预测模式比特; 并且基于所述变化选择性地将所述预测模式位包括在所述比特流中。 根据本发明,可以简化用于图像压缩的预测模式的选择处理,可以提高压缩率,并且可以减小压缩数据的大小,以提高压缩效率。
    • 55. 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
    • WO2010047498A3
    • 2010-08-05
    • PCT/KR2009005963
    • 2009-10-16
    • SK TELECOM CO LTDKIM HAYOONHAN DONGHOONKIM KIOHKIM DAEYEONLEE YUNGLYULMOON JOOHEEKIM HAEKWANGJEON BYEUNGWOO
    • KIM HAYOONHAN DONGHOONKIM KIOHKIM DAEYEONLEE YUNGLYULMOON JOOHEEKIM HAEKWANGJEON BYEUNGWOO
    • H04N7/24
    • H04N19/117H04N19/139H04N19/14H04N19/172H04N19/176H04N19/523H04N19/61
    • The present invention relates to an image encoding/decoding method and device using coefficients of an adaptive interpolation filter. The image encoding device of the present invention comprises: a coefficient calculator for calculating coefficients of an adaptive interpolation filter of a current frame; an image encoder for interpolating a reference frame by using the coefficients of the adaptive interpolation filter, and for encoding the current frame by using the interpolated reference frame; a filter flag encoder for generating and encoding a flag with/without a coefficient inserted as a filter flag, based on the coefficient of the adaptive interpolation filter of the current frame; a coefficient encoder for encoding the coefficient of the adaptive interpolation filter of the current frame, if the flag with a coefficient inserted is the filter flag; and a bit-stream generator for generating and outputting a bit stream, the bit stream including the encoded current frame, the encoded filter flag and additionally the coefficient of the adaptive interpolation filter of the encoded current frame. According to the present invention, encoding efficiency or compression efficiency can be improved by reducing a bit amount for the adaptively determined coefficient of a filter, while encoding an image through the adaptive determination of the coefficient of an interpolation filter.
    • 本发明涉及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。 本发明的图像编码装置包括:用于计算当前帧的自适应内插滤波器的系数的系数计算器; 图像编码器,用于通过使用自适应内插滤波器的系数来内插参考帧,并且通过使用内插参考帧对当前帧进行编码; 滤波器标志编码器​​,用于基于当前帧的自适应内插滤波器的系数,生成和编码具有/不具有插入的系数作为滤波器标志的标志; 用于对当前帧的自适应内插滤波器的系数进行编码的系数编码器,如果具有插入系数的标志是滤波器标志; 以及比特流生成器,用于生成和输出比特流,比特流包括编码的当前帧,编码的滤波器标志以及另外的编码的当前帧的自适应内插滤波器的系数。 根据本发明,通过减少滤波器的自适应确定系数的比特量,通过内插滤波器的系数的自适应确定对图像进行编码,可以提高编码效率或压缩效率。
    • 58. 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
    • WO2009157674A3
    • 2010-03-25
    • PCT/KR2009003291
    • 2009-06-19
    • SK TELECOM CO LTDKIM HAYOONJEON BYEUNGWOOLEE YUNGLYULMOON JOOHEEKIM HAEKWANGYANG JUNGYOUPWON KWANGHYUN
    • KIM HAYOONJEON BYEUNGWOOLEE YUNGLYULMOON JOOHEEKIM HAEKWANGYANG JUNGYOUPWON KWANGHYUN
    • H04N7/32
    • H04N19/52H04N19/105H04N19/176H04N19/184H04N19/46
    • The present invention relates to a method for encoding/decoding a motion vector and an apparatus thereof, and comprises the steps of: selecting a candidate motion vector set for a current motion vector, selecting a prediction motion vector from the candidate motion vector set, and judging whether or not the prediction motion vector is predictable in a decoding apparatus. If the prediction motion vector is predictable, the current motion vector is encoded using a motion vector prediction mode that indicates a prediction motion vector and a prediction possibility. If the prediction motion vector is not predictable, the current vector is encoded using a motion vector prediction mode that indicates a default prediction motion vector and a prediction impossibility. According to the invention, the method and the apparatus can provide information for searching for the prediction motion vector and share a certain function for the search without directly notifying the prediction motion vector for the current motion vector to the decoding apparatus so that the current motion vector may be encoded and/or decoded by selecting the prediction motion vector according to the motion vector prediction mode, and the motion vector prediction mode may be transmitted to the decoding apparatus. Therefore, the amount of encoded bits can be reduced and the performances of the motion vector prediction and compensation can be improved.
    • 本发明涉及一种用于对运动矢量进行编码/解码的方法及其装置,包括以下步骤:为当前运动矢量选择候选运动矢量集,从候选运动矢量集中选择预测运动矢量;以及 判断在解码装置中预测运动矢量是否可预测。 如果预测运动矢量是可预测的,则使用指示预测运动矢量和预测可能性的运动矢量预测模式对当前运动矢量进行编码。 如果预测运动矢量是不可预测的,则使用指示默认预测运动矢量和预测不可能性的运动矢量预测模式对当前矢量进行编码。 根据本发明,该方法和装置可以提供用于搜索预测运动矢量的信息并且共享用于搜索的一定功能,而无需将当前运动矢量的预测运动矢量直接通知给解码装置,使得当前运动矢量 可以通过根据运动矢量预测模式选择预测运动矢量来进行编码和/或解码,并且可以将运动矢量预测模式发送到解码装置。 因此,可以减少编码比特的数量,并且可以提高运动矢量预测和补偿的性能。