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    • 84. 发明申请
    • WAVELET TRANSFORM APPARATUS AND METHOD BASED ON AN UPDATE-PREDICTION LIFTING SCHEME, ADAPTIVE PREDICTION APPARATUS AND METHOD FOR SAME, AND RECORDING MEDIUM FOR SAME
    • 基于更新预测提升方案的小波变换装置和方法,自适应预测装置及其相关方法和记录介质
    • WO2011002170A2
    • 2011-01-06
    • PCT/KR2010004025
    • 2010-06-22
    • SK TELECOM CO LTDKIM SUNYEONCHOE YOONSIKKIM YONGGOOCHOI YUNGHOKIM SUNGJEILIM JEONGYEON
    • KIM SUNYEONCHOE YOONSIKKIM YONGGOOCHOI YUNGHOKIM SUNGJEILIM JEONGYEON
    • H04N7/26H04N7/24H04N7/32
    • H04N19/615H04N19/13H04N19/61H04N19/63H04N19/635
    • The present invention relates to a wavelet transform apparatus and method based on an update-prediction lifting scheme, to an adaptive prediction apparatus and method for same, and to a recording medium for same. The apparatus for predicting an odd-numbered polyphase sample from an even-numbered polyphase sample updated by the wavelet transform based on the update-prediction lifting scheme, comprises: a current sample matching unit which selects a first sample template-matched to the current even-numbered polyphase sample from among restored preceding samples; a basis function set having a plurality of basis functions which have a variety of directions and coefficients of a filter with respect to the updated even-numbered polyphase sample; a basis function selection unit which selects a specific basis function from among the plurality of basis functions on the basis of the first sample and the updated even-numbered polyphase sample; and a residual signal generating unit which obtains a residual odd-numbered polyphase sample on the basis of the selected specific basis function and the relevant odd-numbered polyphase sample, thereby selecting an optimum basis function which can effectively remove the spatial correlation within an image and minimize the subjective degradation of image quality, thus improving encoding efficiency and subjective image quality assessment.
    • 本发明涉及一种基于更新预测提升方案的小波变换装置和方法,涉及一种适用于其的自适应预测装置及其方法及其用于其的记录介质。 用于通过基于更新预测提升方案的小波变换更新的偶数多相样本预测奇数多相样本的装置包括:当前采样匹配单元,其选择与当前偶数相匹配的第一样本模板 来自恢复的先前样品的数字多相样品; 具有多个基本函数的基函数集合,其具有相对于更新的偶数多相样本具有滤波器的各种方向和系数的多个基函数; 基础函数选择单元,其基于第一样本和更新的偶数多相样本从多个基函数中选择特定的基函数; 以及剩余信号生成单元,其基于所选择的特定基准函数和相关的奇数多相样本来获得残留奇数多相样本,从而选择可以有效地消除图像内的空间相关性的最优基函数, 最小化图像质量的主观退化,从而提高编码效率和主观图像质量评估。
    • 85. 发明申请
    • ENCODING APPARATUS, METHOD FOR DRIVING SAME, AND ENCODING METHOD
    • 编码装置,驱动它的方法和编码方法
    • WO2011105867A3
    • 2011-12-08
    • PCT/KR2011001379
    • 2011-02-28
    • SK TELECOM CO LTDLIM JEONGYEONKIM SUNYEON
    • LIM JEONGYEONKIM SUNYEON
    • H04N7/24
    • H04N19/152H04N19/15
    • One embodiment of the present invention relates to an encoding apparatus, to a method for driving same, and to an encoding method. The encoding apparatus according to the embodiment of the present invention comprises: an image-analyzing unit which receives and analyzes an input image, and outputs the input image and analysis information; an input image and analysis information buffer unit which stores the input image and the analysis information, and provides the stored input image and analysis information via different paths; a database unit which receives information related to the output volume of a bit stream being outputted and/or said analysis information, selects encoding-related prediction information according to the information related to the output volume of the bit stream and said analysis information, and provides the selected information; a bit rate controller which generates bit rate allocation information for allocating bit rates of the input image using the analysis information, the encoding-related prediction information, and information on the output state of the bit stream being outputted; an encoding unit which provides the information related to the output volume of the bit stream and the information on the output state of the bit stream, encodes the input image using the encoding-related prediction information, the bit rate allocation information, and the information on the output state of the bit stream, and outputs the encoded image; and an output state information buffer which receives the information on the output state of the bit stream, stores the received information, and provides the bit rate controller and/or the encoding unit with the information on the output state of the bit stream.
    • 本发明的一个实施例涉及编码装置,用于驱动该编码装置的方法以及编码方法。 根据本发明实施例的编码设备包括:图像分析单元,其接收并分析输入图像,并输出输入图像和分析信息; 输入图像和分析信息缓冲单元,其存储输入图像和分析信息,并且经由不同路径提供所存储的输入图像和分析信息; 数据库单元,其接收与正在输出的比特流的输出量和/或所述分析信息有关的信息;根据与比特流的输出量相关的信息和所述分析信息来选择与编码相关的预测信息;以及提供 所选信息; 比特速率控制器,其使用分析信息,编码相关预测信息以及正在输出的比特流的输出状态的信息来生成用于分配输入图像的比特率的比特率分配信息; 提供与比特流的输出音量有关的信息和关于比特流的输出状态的信息的编码单元使用编码相关预测信息,比特率分配信息和关于比特率信息的信息对输入图像进行编码 比特流的输出状态,并输出编码图像; 以及输出状态信息缓冲器,其接收关于比特流的输出状态的信息,存储所接收的信息,并向比特率控制器和/或编码单元提供关于比特流的输出状态的信息。
    • 88. 发明申请
    • METHOD AND APPARATUS FOR MOTION VECTOR ENCODING/DECODING USING SPATIAL DIVISION, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING SAME
    • 使用空间分割的运动矢量编码/解码的方法和装置,以及使用其进行图像编码/解码的方法和装置
    • WO2011052897A3
    • 2011-09-09
    • PCT/KR2010006738
    • 2010-10-01
    • SK TELECOM CO LTDKIM SUNYEONLIM JEONGYEONLEE GYUMINCHOI JAEHOONCHOE YOONSIKCHOI YUNGHOKIM YONGGOO
    • KIM SUNYEONLIM JEONGYEONLEE GYUMINCHOI JAEHOONCHOE YOONSIKCHOI YUNGHOKIM YONGGOO
    • H04N7/32H04N7/24
    • H04N19/567H04N19/52
    • The present invention relates to a method and apparatus for motion vector encoding/decoding using spatial division, and to a method and apparatus for image encoding/decoding using same. The present invention provides a motion vector encoding method comprising: collecting predictor motion vector candidates of the current block into a plurality of groups; selecting, as a representative predictor motion vector, one predictor motion vector candidate from among the predictor motion vector candidates in each group, such that representative predictor motion vectors for respective groups can be selected; selecting, as a predictor motion vector, one representative predictor motion vector from among the representative predictor motion vectors of the groups; and encoding a differential vector which is a difference between the current motion vector and the selected predictor motion vector of the current block. According to the present invention, an increase in bit rate, caused by encoding side information for indicating which predictor motion vector is selected, can be suppressed while reducing the size of the differential vector to be encoded, thus improving motion vector encoding efficiency and ultimately improving image compression efficiency.
    • 本发明涉及使用空间划分的运动矢量编码/解码的方法和装置,以及涉及使用其进行图像编码/解码的方法和装置。 本发明提供了一种运动矢量编码方法,包括:将当前块的预测器运动矢量候选收集到多个组中; 从每组中的预测器运动矢量候选中选择一个预测器运动矢量作为代表预测器运动矢量,使得可以选择各组的代表性预测器运动矢量; 从所述组的代表性预测器运动矢量中选择一个代表性预测器运动矢量作为预测器运动矢量; 以及编码作为当前块的当前运动矢量和所选择的预测器运动矢量之间的差的差分矢量。 根据本发明,可以抑制由编码侧信息引起的用于指示哪个预测器运动矢量被选择的比特率的增加,同时减小要编码的差分矢量的大小,从而提高运动矢量编码效率并最终改善 图像压缩效率。
    • 90. 发明申请
    • METHOD AND APPARATUS FOR ENCODING/DECODING A MOTION VECTOR BY SELECTING A SET OF PREDICTED CANDIDATE MOTION VECTORS, AND METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING THE SAME
    • 通过选择一组预测候选运动向量对编码/解码运动向量进行编码/解码的方法和装置,以及使用该编码/解码进行图像编码/解码的方法和装置
    • WO2011062392A2
    • 2011-05-26
    • PCT/KR2010007839
    • 2010-11-08
    • SK TELECOM CO LTDKIM SUNYEONLIM JEONGYEONLEE GYUMINCHOI JAEHOONKIM YONGGOOCHOE YOONSIKCHOI YUNGHO
    • KIM SUNYEONLIM JEONGYEONLEE GYUMINCHOI JAEHOONKIM YONGGOOCHOE YOONSIKCHOI YUNGHO
    • H04N7/32H04N7/24
    • H04N19/52H04N19/13H04N19/176H04N19/70
    • The present invention relates to a method and apparatus for encoding/decoding a motion vector by selecting a set of predicted candidate motion vectors, and a method and apparatus for image encoding/decoding using the same. The method for encoding a motion vector according to the present invention comprises: selecting one set of predicted candidate motion vectors among plural sets of predicted candidate motion vectors by using information about motions of neighboring blocks of a current block; selecting one of the predicted candidate motion vectors in the selected set of predicted candidate motion vectors as a predicted motion vector; encoding a differential vector which represents the difference between the current motion vector as a motion vector of the current block and the predicted motion vector being selected; and encoding a predicted motion vector index that represents the predicted motion vector being selected. According to the present invention, as a motion vector is encoded by selecting an efficient set of predicted candidate motion vectors, the magnitude of a differential vector to be encoded can be reduced without necessarily encoding additional information to indicate which set of predicted candidate motion vectors has been selected. In result, the compression efficiency of a motion vector and further the compression efficiency of an image can be improved.
    • 本发明涉及一种通过选择一组预测候选运动矢量来编码/解码运动矢量的方法和设备,以及使用该方法和设备进行图像编码/解码的方法和设备。 根据本发明的用于编码运动矢量的方法包括:通过使用关于当前块的相邻块的运动的信息,在多组预测候选运动矢量中选择一组预测候选运动矢量; 选择所选择的一组预测候选运动矢量中的一个预测候选运动矢量作为预测运动矢量; 编码表示作为当前块的运动矢量的当前运动矢量与被选择的预测运动矢量之间的差值的差分矢量; 并且编码表示被选择的预测运动矢量的预测运动矢量索引。 根据本发明,由于通过选择有效的一组预测候选运动矢量来编码运动矢量,所以可以减小待编码的差分矢量的大小,而不必编码附加信息以指示哪组预测候选运动矢量具有 已被选中。 结果,可以提高运动矢量的压缩效率并进一步提高图像的压缩效率。