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    • 63. 发明申请
    • INTRA-PREDICTION ENCODING/DECODING APPARATUS AND METHOD FOR OMITTING THE TRANSMISSION OF PREDICTION MODE INFORMATION USING CHARACTERISTICS OF REFERENCE PIXELS
    • 使用参考像素特性来预测传输预测模式信息的内部预测编码/解码装置和方法
    • WO2012033343A3
    • 2012-05-31
    • PCT/KR2011006625
    • 2011-09-07
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONJUNG TAE YOUNGLEE HYUKJEONG JECHANG
    • SONG JINHANLIM JEONGYEONJUNG TAE YOUNGLEE HYUKJEONG JECHANG
    • H04N7/34
    • H04N19/00569H04N19/11H04N19/14H04N19/176H04N19/46H04N19/593
    • Disclosed are an intra-prediction encoding/decoding apparatus and a method for omitting the transmission of prediction mode information using characteristics of reference pixels. The intra-prediction encoding apparatus according to one embodiment of the present invention comprises: a characteristic information calculation unit, which selects at least one of the reference pixels close to the current block to be encoded so as to calculate characteristic information on a direction; a comparison unit comparing the characteristic information on the direction calculated by the characteristic information calculation unit with a predetermined reference value; a prediction mode determination unit determining a prediction mode of the current block as a mode corresponding to the selected reference pixel, when a result of the comparison by the comparison unit meets a predetermined condition; and an encoding unit encoding a residual value between the current block and prediction block according to a determined mode, if the result of the comparison meets the predetermined condition, and omitting encoding mode information on the determined mode.
    • 公开了使用参考像素的特性来省略预测模式信息的发送的帧内预测编码/解码装置和方法。 根据本发明的一个实施例的帧内预测编码装置包括:特征信息计算单元,其选择接近当前要编码的块的参考像素中的至少一个,以计算方向上的特征信息; 比较单元,将由特征信息计算单元计算的方向的特征信息与预定参考值进行比较; 当比较单元的比较结果满足预定条件时,预测模式确定单元确定当前块的预测模式作为与所选择的参考像素相对应的模式; 以及编码单元,如果比较结果满足预定条件,则根据确定的模式来编码当前块和预测块之间的残差,并且省略关于所确定的模式的编码模式信息。
    • 64. 发明申请
    • ENCODING AND DECODING DEVICE AND METHOD USING INTRA PREDICTION
    • 编码和解码设备和使用内部预测的方法
    • WO2012026794A3
    • 2012-05-31
    • PCT/KR2011006346
    • 2011-08-26
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONCHOE YOONSIKKIM YONGGOOCHOI YUNG HOKANG JI HONG
    • SONG JINHANLIM JEONGYEONCHOE YOONSIKKIM YONGGOOCHOI YUNG HOKANG JI HONG
    • H04N7/34
    • H04N19/11H04N19/117H04N19/147H04N19/176H04N19/182H04N19/50H04N19/61
    • The present invention relates to an encoding and decoding device and method using intra prediction, and provides an encoding device using intra prediction. The encoding device comprises: a reference pixel characteristic extraction unit that determines a reference pixel characteristic by receiving at least one or more reference pixels, which are contained in an adjacent block of a target block for performing an encoding function, and determines whether to apply adaptive filtering for said at least one or more reference pixels on the basis of said reference pixel characteristic; a first intra prediction unit that compares a result, which is produced by performing an intra prediction with a reference pixel that has performed a high-frequency elimination filtering, with a result, which is produced by performing an intra prediction with a reference pixel that did not perform the high-frequency elimination filtering, if said reference pixel characteristic extraction unit determined to apply the adaptive filtering, and outputs a result having a reduced cost in conjunction with the filtering information that shows whether the filtering has been performed; and a second intra prediction unit that outputs the result, which is produced by performing the intra prediction with the reference pixel that did not perform said high-frequency elimination filtering, if said reference pixel characteristic extraction unit determined not to apply the adaptive filtering.
    • 本发明涉及使用帧内预测的编码和解码装置和方法,并提供使用帧内预测的编码装置。 编码装置包括:参考像素特征提取单元,其通过接收包含在用于执行编码功能的目标块的相邻块中的至少一个或多个参考像素来确定参考像素特性,并且确定是否应用自适应 基于所述参考像素特性对所述至少一个或多个参考像素进行滤波; 第一帧内预测单元,其将通过执行帧内预测产生的结果与执行了高频消除滤波的参考像素进行比较,结果是通过使用参考像素执行帧内预测 如果所述参考像素特征提取单元被确定为应用自适应滤波,则不执行高频消除滤波,并且与结合过滤信息已经执行的滤波信息一起输出具有降低成本的结果; 以及第二帧内预测单元,如果所述参考像素特征提取单元被确定为不应用所述自适应滤波,则输出通过用不执行所述高频消除滤波的参考像素执行帧内预测而产生的结果。
    • 66. 发明申请
    • ADAPTIVE COMPETITION-BASED MOTION CANDIDATE VECTOR CALCULATION METHOD FOR EFFICIENT CODING/DECODING OF MOTION VECTOR, AND DEVICE FOR CODING/DECODING MOTION VECTOR USING SAME
    • 基于竞争竞争的运动候选矢量计算方法,用于运动矢量的有效编码/解码,以及使用其编码/解码运动矢量的装置
    • WO2011155779A3
    • 2012-05-03
    • PCT/KR2011004234
    • 2011-06-09
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONCHOI YUNGHOCHOE YOONSIKKIM YONGGOOKIM SUNGJEI
    • SONG JINHANLIM JEONGYEONCHOI YUNGHOCHOE YOONSIKKIM YONGGOOKIM SUNGJEI
    • H04N7/32
    • H04N19/52
    • Disclosed are an adaptive competition-based motion candidate vector calculation method for efficient coding/decoding of a motion vector, and a device for coding/decoding a motion vector using same. The device for coding a motion vector, according to the present invention, comprises: a candidate predictive motion vector classification unit for classifying candidate predictive motion vectors, which form a set of candidate predictive motion vectors, into a plurality of candidate sets depending on the characteristics of the predictive motion vectors; a representative motion vector selection unit for selecting a representative motion vector from each of the candidate sets that are classified by the candidate predictive motion vector classification unit, comparing, with a threshold value, a difference between the representative motion vectors selected from the respective candidate sets, and selecting at least one of the representative motion vectors depending on the result of the comparison; and a motion vector coding unit for coding the differential value between the representative motion vector selected by the representative motion vector selection unit and the motion vector of a current block.
    • 公开了一种用于运动矢量的有效编码/解码的基于自适应竞争的运动候选矢量计算方法,以及使用其运动矢量进行编码/解码的装置。 根据本发明的用于对运动矢量进行编码的装置包括:候选预测运动矢量分类单元,用于根据特征将候选预测运动矢量组合成多个候选组,所述候选预测运动矢量形成一组候选预测运动矢量 的预测运动矢量; 代表运动矢量选择单元,用于从由候选预测运动矢量分类单元分类的每个候选组中选择代表运动矢量,将阈值与从各个候选组中选择的代表运动矢量之间的差进行比较; 并且根据比较的结果选择代表运动矢量中的至少一个; 以及运动矢量编码单元,用于对由代表运动矢量选择单元选择的代表运动矢量与当前块的运动矢量之间的差分值进行编码。
    • 68. 发明申请
    • CONTEXT MODELING METHOD AND CONTEXT MODELING APPARATUS, AND IMAGE ENCODING/DECODING METHOD AND IMAGE ENCODING/DECODING APPARATUS USING SAME
    • 背景建模方法和背景建模装置,图像编码/解码方法和图像编码/解码装置
    • WO2011155782A2
    • 2011-12-15
    • PCT/KR2011004240
    • 2011-06-09
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONKIM YONGGOOCHOE YOONSIKCHOI YUNGHOKIM SUNGJEI
    • SONG JINHANLIM JEONGYEONKIM YONGGOOCHOE YOONSIKCHOI YUNGHOKIM SUNGJEI
    • H04N7/24
    • H04N19/196H04N19/197
    • One embodiment of the present invention relates to a context modeling method and context modeling apparatus, and to an image encoding/decoding method and image encoding/decoding apparatus using the same. According to one embodiment of the present invention, the context modeling method and the context modeling apparatus, and the image encoding/decoding method and the image encoding/decoding apparatus using the same, comprise: a context generating unit which determines the context of a peripheral block using the correlation between the motion vector of a block neighboring the peripheral block of the current block and the motion vector of the peripheral block; and a context selecting unit which selects the context of the current block corresponding to the context of the peripheral block. According to one embodiment of the present invention, the context of a motion vector is generated based on the correlation with the motion vector of the peripheral block, and candidate motion vectors are adaptively provided in accordance with the condition of the peripheral block so as to efficiently encode the motion vector of the current block, thereby significantly improving the encoding performance of the motion vector of the current block, thus improving the encoding performance of a video compression apparatus or the quality of restored image.
    • 本发明的一个实施例涉及上下文建模方法和上下文建模装置,以及涉及使用其的图像编码/解码方法和图像编码/解码装置。 根据本发明的一个实施例,上下文建模方法和上下文建模装置以及使用其的图像编码/解码方法和图像编码/解码装置包括:上下文生成单元,其确定外设的上下文 使用与当前块的周边块相邻的块的运动矢量与周边块的运动矢量之间的相关性的块; 以及上下文选择单元,其选择与外围块的上下文相对应的当前块的上下文。 根据本发明的一个实施例,基于与外围块的运动矢量的相关性来生成运动矢量的上下文,并且根据外围块的条件自适应地提供候选运动矢量,以便有效地 编码当前块的运动矢量,从而显着提高当前块的运动矢量的编码性能,从而提高视频压缩装置的编码性能或恢复图像的质量。