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1. 发明申请

WO2011155779A3 ADAPTIVE COMPETITION-BASED MOTION CANDIDATE VECTOR CALCULATION METHOD FOR EFFICIENT CODING/DECODING OF MOTION VECTOR, AND DEVICE FOR CODING/DECODING MOTION VECTOR USING SAME 审中-公开
标题翻译：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
公开(公告)号：WO2011155779A3
公开(公告)日：2012-05-03
申请号：PCT/KR2011004234
申请日：2011-06-09
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO , KIM SUNGJEI
发明人： SONG JINHAN , LIM JEONGYEON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO , KIM SUNGJEI
IPC分类号： H04N7/32
CPC分类号： H04N19/52
摘要： 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.
摘要翻译：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。

2. 发明申请

WO2011155782A2 CONTEXT MODELING METHOD AND CONTEXT MODELING APPARATUS, AND IMAGE ENCODING/DECODING METHOD AND IMAGE ENCODING/DECODING APPARATUS USING SAME 审中-公开
标题翻译：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
公开(公告)号：WO2011155782A2
公开(公告)日：2011-12-15
申请号：PCT/KR2011004240
申请日：2011-06-09
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO , KIM SUNGJEI
发明人： SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO , KIM SUNGJEI
IPC分类号： H04N7/24
CPC分类号： H04N19/196 , H04N19/197
摘要： 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.
摘要翻译：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。

3. 发明申请

WO2012020967A3 METHOD AND DEVICE FOR ENCODING/DECODING IMAGE USING ADAPTIVE ENCODING/DECODING MODE INDEXING METHOD 审中-公开
标题翻译：使用自适应编码/解码模式索引方法对图像进行编码/解码的方法和设备
公开(公告)号：WO2012020967A3
公开(公告)日：2012-05-31
申请号：PCT/KR2011005792
申请日：2011-08-09
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO , KIM SUNGJEI
发明人： SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO , KIM SUNGJEI
IPC分类号： H04N7/26
CPC分类号： H04N19/00139 , H04N19/13 , H04N19/157 , H04N19/176 , H04N19/463
摘要： Disclosed are a method and a device for encoding/decoding an image using an adaptive encoding/decoding mode indexing method. An image encoding device of an embodiment of the present invention comprises: a statistics generating unit for calculating the outcome probability of each of the encoding modes of blocks having completed encoding before a present block; a bit allocating unit for allocating and indexing an empty string in correspondence to the probability of each of the encoding modes calculated by the statistics generating unit; and an image encoding unit for encoding the encoding mode of the present block on the basis of the empty string allocated by the bit allocating unit when encoding the present block.
摘要翻译：公开了一种使用自适应编码/解码模式索引方法对图像进行编码/解码的方法和设备。本发明实施例的图像编码装置包括：统计量生成单元，用于计算在当前块之前完成编码的块的每个编码模式的结果概率; 比特分配单元，用于根据统计信息生成单元计算出的每种编码模式的概率，分配和索引空字符串; 以及图像编码单元，用于在对当前块进行编码时，基于由比特分配单元分配的空串，对当前块的编码模式进行编码。

4. 发明申请

WO2012015192A2 METHOD AND DEVICE FOR CODING COMPETITION-BASED INTERLEAVED MOTION VECTOR, AND METHOD AND DEVICE FOR IMAGE ENCODING/DECODING USING SAME 审中-公开
标题翻译：用于编码基于竞争的交互运动矢量的方法和装置，以及使用其进行图像编码/解码的方法和装置
公开(公告)号：WO2012015192A2
公开(公告)日：2012-02-02
申请号：PCT/KR2011005358
申请日：2011-07-20
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNG HO , KIM SUNGJEI
发明人： SONG JINHAN , LIM JEONGYEON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNG HO , KIM SUNGJEI
IPC分类号： H04N7/24
CPC分类号： H04N19/593 , H04N19/52
摘要： The present invention relates to a method and a device for coding competition-based interleaved motion vectors, and to a method and a device for image encoding/decoding using same. One embodiment of the present invention provides the device and the method for coding motion vectors, and the method and the device for image encoding/decoding using same, comprising the following steps: deciding the high-priority component of the motion vector of a current block and the low-priority component of the motion vector of the current block, based on a correlation diagram of the x and y components of the motion vectors of the peripheral blocks of the current block; selecting the optimal prediction block set from the high-priority component of the motion vector of a predetermined prediction block set candidate and from the high-priority component of the motion vector of the current block; generating information on the optimal prediction block set; calculating the high-priority component of a prediction motion vector from the optimal prediction block set, and calculating a high-priority differential value, which is the differential value between the high-priority component of the prediction motion vector and the high-priority value of the motion vector of the current block; and calculating the low-priority component of the prediction motion vector from a predetermined low-priority prediction block set, and calculating the low-priority differential value, which is the differential value between the low-priority component of the prediction motion vector and the low-priority component of the motion vector of the current block.
摘要翻译：本发明涉及用于编码基于竞争的交错运动矢量的方法和装置，以及涉及使用其进行图像编码/解码的方法和装置。本发明的一个实施例提供了用于编码运动矢量的装置和方法，以及使用它们进行图像编码/解码的方法和装置，包括以下步骤：确定当前块的运动矢量的高优先级分量基于当前块的外围块的运动矢量的x和y分量的相关图示出当前块的运动矢量的低优先级分量; 从预定预测块集候选的运动矢量的高优先级分量和当前块的运动矢量的高优先级分量中选择最优预测块组; 生成关于最优预测块集合的信息; 从最优预测块集合计算预测运动矢量的高优先级分量，并计算作为预测运动矢量的高优先级分量与高优先级值之间的差分值的高优先级差分值当前块的运动矢量; 以及从预定的低优先级预测块集合计算预测运动矢量的低优先级分量，并计算作为预测运动矢量的低优先级分量与低频优先级低的差分值的低优先级差分值 -priority分量的当前块的运动矢量。

5. 发明申请

WO2012011714A3 DEVICE AND METHOD FOR COMPETITION-BASED INTRA PREDICTION ENCODING/DECODING USING MULTIPLE PREDICTION FILTERS 审中-公开
标题翻译：基于竞争的内部预测编码/解码的装置和方法使用多个预测滤波器
公开(公告)号：WO2012011714A3
公开(公告)日：2012-05-03
申请号：PCT/KR2011005291
申请日：2011-07-19
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNG HO , KIM SUNGJEI
发明人： SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNG HO , KIM SUNGJEI
IPC分类号： H04N7/34
CPC分类号： H04N19/50 , H04N19/117 , H04N19/15 , H04N19/176 , H04N19/46 , H04N19/593
摘要： Disclosed are a device and a method for competition-based intra prediction encoding/decoding using multiple prediction filters. The device for intra prediction encoding, according to one embodiment of the present invention, comprises: an optimal filter selection unit, having a plurality of extrapolation prediction filter candidates which filter peripheral pixels around current blocks based on the intra-prediction direction or the mode of each of the current blocks to be encoded, for selecting the filter involving the lowest encoding cost among the plurality of extrapolation prediction filter candidates; a remaining signal generation unit for generating the extrapolation prediction value of the current blocks using the filter selected by the optimal filter selection unit, and for generating remaining signals by calculating the difference between the extrapolation prediction value and the pixel value of the current blocks; a transformation and quantization unit for transforming and quantizing the remaining signals generated by the remaining signal generation unit; and an entropy encoding unit for entropy-encoding the transformed and quantized remaining signals.
摘要翻译：公开了使用多个预测滤波器的基于竞争的帧内预测编码/解码的装置和方法。根据本发明的一个实施例的用于帧内预测编码的装置包括：最佳滤波器选择单元，具有多个外推预测滤波器候选，其基于帧内预测方向或模式来滤除当前块周围的周围像素要编码的每个当前块，用于在多个外推预测滤波器候选中选择涉及最低编码成本的滤波器; 剩余信号产生单元，用于使用由最佳滤波器选择单元选择的滤波器生成当前块的外插预测值，并且通过计算外推预测值和当前块的像素值之间的差来产生剩余信号; 变换和量化单元，用于变换和量化剩余信号产生单元产生的剩余信号; 以及用于对经变换和量化的剩余信号进行熵编码的熵编码单元。

6. 发明申请

WO2011002170A2 WAVELET TRANSFORM APPARATUS AND METHOD BASED ON AN UPDATE-PREDICTION LIFTING SCHEME, ADAPTIVE PREDICTION APPARATUS AND METHOD FOR SAME, AND RECORDING MEDIUM FOR SAME 审中-公开
标题翻译：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
公开(公告)号：WO2011002170A2
公开(公告)日：2011-01-06
申请号：PCT/KR2010004025
申请日：2010-06-22
申请人： SK TELECOM CO LTD , KIM SUNYEON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNGHO , KIM SUNGJEI , LIM JEONGYEON
发明人： KIM SUNYEON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNGHO , KIM SUNGJEI , LIM JEONGYEON
IPC分类号： H04N7/26 , H04N7/24 , H04N7/32
CPC分类号： H04N19/615 , H04N19/13 , H04N19/61 , H04N19/63 , H04N19/635
摘要： 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.
摘要翻译：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。

7. 发明申请

WO2012002765A3 METHOD AND APPARATUS FOR PREDICTING COLOR SPACE, AND METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING SAME 审中-公开
标题翻译：用于预测颜色空间的方法和装置，以及使用其编码/解码图像的方法和装置
公开(公告)号：WO2012002765A3
公开(公告)日：2012-05-03
申请号：PCT/KR2011004839
申请日：2011-07-01
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO , JEONG JINWOO
发明人： SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO , JEONG JINWOO
IPC分类号： H04N7/24 , H04N11/04
CPC分类号： H04N19/48 , H04N19/105 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/61
摘要： One embodiment of the present invention relates to a method and an apparatus for predicting a color space and to a method and an apparatus for encoding/decoding an image using same. According to one embodiment of the present invention, provided are an apparatus and a method for predicting a color space, comprising: a predictive weighted value calculation unit which determines a weighted block from an encoded peripheral block of the current block, and calculates a predictive weighted value for each frequency domain from the weighted block; a predictive frequency selection unit which calculates predictive gains for each frequency domain from the predictive weighted value for each frequency domain, and selects a frequency domain to be used in predicting a color space, using the predictive gains for each frequency domain; and a frequency domain prediction unit which receives a converted residual block, and predicts a color space for the converted residual block from the predictive weighted value of the selected frequency domain. According to one embodiment of the present invention, provided are an apparatus and a method for predicting a color space, and a method and an apparatus for encoding/decoding an image using same, comprising: a predictive weighted value calculation unit which determines a weighted block from a decoded peripheral block of the current block, and calculates a predictive weighted value for each frequency domain from the weighted block; a predictive frequency selection unit which calculates predictive gains for each frequency domain from the predictive weighted value for each frequency domain, and selects a frequency domain to be used in predicting a color space, using the predictive gains for each frequency domain; and a frequency domain restoring unit which restores a converted residual block from a color space prediction block.
摘要翻译：本发明的一个实施例涉及一种用于预测颜色空间的方法和装置，以及使用其对图像进行编码/解码的方法和装置。根据本发明的一个实施例，提供了一种用于预测颜色空间的装置和方法，包括：预测加权值计算单元，其从当前块的编码外围块确定加权块，并且计算预测加权值来自加权块的每个频域的值; 预测频率选择单元，其从每个频域的预测加权值计算每个频域的预测增益，并且使用每个频域的预测增益来选择要用于预测颜色空间的频域; 以及频域预测单元，其接收经转换的残差块，并根据所选频域的预测加权值预测所转换的残差块的色空间。根据本发明的一个实施例，提供了一种用于预测颜色空间的装置和方法，以及使用其对图像进行编码/解码的方法和装置，包括：预测加权值计算单元，其确定加权块从所述当前块的解码的外围块中，从所述加权块计算每个频域的预测加权值; 预测频率选择单元，用于根据每个频域的预测加权值来计算每个频域的预测增益，并且使用每个频域的预测增益来选择要用于预测颜色空间的频域; 以及频域恢复单元，其从颜色空间预测块恢复转换的残差块。

8. 发明申请

WO2012011672A2 METHOD AND DEVICE FOR ENCODING/DECODING IMAGE USING EXTENDED SKIP MODE 审中-公开
标题翻译：用于使用扩展跳过模式对图像进行编码/解码的方法和设备
公开(公告)号：WO2012011672A2
公开(公告)日：2012-01-26
申请号：PCT/KR2011004521
申请日：2011-06-21
申请人： SK TELECOM CO LTD , SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNG HO , KIM SUNGJEI
发明人： SONG JINHAN , LIM JEONGYEON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNG HO , KIM SUNGJEI
IPC分类号： H04N7/32 , H04N7/24
CPC分类号： H04N19/0069 , H04N19/109 , H04N19/117 , H04N19/139 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/52 , H04N19/61 , H04N19/82 , H04N19/86
摘要： The present invention relates to a method and a device for encoding/decoding an image using an extended skip mode. One embodiment of the present invention provides the method and the device for encoding/decoding the image using the extended skip mode comprising the following steps: setting a motion vector of a back reference block of peripheral blocks around the current block as the predictive motion vector of the current block, or setting the predictive motion vector from a motion vector of the front reference block of the block in a back reference picture, which is at the same location as the current block; motion-compensating using the predictive motion vector; and setting a prediction mode when the result of the motion-compensation satisfies the optimal skip condition.
摘要翻译：本发明涉及一种使用扩展跳过模式对图像进行编码/解码的方法和设备。本发明的一个实施例提供了使用扩展跳过模式对图像进行编码/解码的方法和设备，其包括以下步骤：将当前块周围的外围块的后向参考块的运动向量设置为预测运动向量所述当前块或者从与所述当前块位于相同位置的后向参考图片中的所述块的前参考块的运动向量设置所述预测运动向量; 使用预测运动矢量进行运动补偿; 以及当运动补偿的结果满足最佳跳过条件时设置预测模式。

9. 发明申请

WO2011071316A3 IMAGE-ENCODING APPARATUS AND METHOD, TRANSFORM-ENCODING APPARATUS AND METHOD, APPARATUS AND METHOD FOR GENERATING A TRANSFORM BASE, AND IMAGE-DECODING APPARATUS AND METHOD USED IN SAME 审中-公开
标题翻译：图像编码装置和方法，变换编码装置和方法，用于产生变换基底的装置和方法，以及图像解码装置和在其中使用的方法
公开(公告)号：WO2011071316A3
公开(公告)日：2011-11-24
申请号：PCT/KR2010008777
申请日：2010-12-09
申请人： SK TELECOM CO LTD , KIM SUNYEON , LIM JEONGYEON , LEE GYUMIN , CHOI JAEHOON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO
发明人： KIM SUNYEON , LIM JEONGYEON , LEE GYUMIN , CHOI JAEHOON , KIM YONGGOO , CHOE YOONSIK , CHOI YUNGHO
IPC分类号： H04N7/50 , H04N7/34
CPC分类号： H04N19/11 , H04N19/122 , H04N19/593 , H04N19/61
摘要： The present invention relates to an image-encoding apparatus and method, a transform-encoding apparatus and method, an apparatus and method for generating a transform base, and an image-decoding apparatus and method used in same. The image-encoding apparatus according to one embodiment of the present invention comprises: an intra-prediction error collecting unit which collects prediction errors of blocks having the same intra-prediction mode from among macro-blocks of a predetermined unit encoded prior to the encoding of the current macro-block; a transform base generating unit which generates transform bases for each intra-prediction mode on the basis of the prediction errors collected by the intra-prediction error collecting unit; an intra-prediction unit which predicts the value of the current pixel using the peripheral pixels existing around a target block in the current frame in accordance with a directional intra-prediction mode, and generates a prediction error using the difference between the current pixel value and the predicted pixel value; and a transform-encoding unit which transform-encodes the prediction error generated by the intra-prediction unit using the transform base generated by the transform base generating unit. According to the present invention, transform bases are adaptively generated in accordance with the variation in the characteristics of images, and intra-prediction errors are transform-encoded using the thus-generated transform bases, thus significantly improving intra-prediction encoding performance without adding any additional information, and remarkably improving the compression efficiency of a video compression apparatus or the quality of a restored image.
摘要翻译：图像编码装置和方法，变换编码装置和方法，用于生成变换基底的装置和方法，以及用在其中的图像解码装置和方法。根据本发明的一个实施例的图像编码设备包括：帧内预测误差收集单元，其收集在编码之前编码的预定单元的宏块中具有相同帧内预测模式的块的预测误差当前的宏块; 变换基础生成单元，其基于由所述帧内预测误差收集单元收集的预测误差来生成用于每个帧内预测模式的变换基础; 帧内预测单元，其根据方向帧内预测模式使用存在于当前帧的目标块周围的周边像素来预测当前像素的值，并且使用当前像素值与当前像素值之间的差来生成预测误差; 预测像素值; 以及变换编码单元，其使用由变换基本产生单元产生的变换基底对由帧内预测单元产生的预测误差进行变换编码。根据本发明，根据图像特性的变化自适应地生成变换基础，并且使用由此生成的变换基础对帧内预测误差进行变换编码，由此显着改进帧内预测编码性能而不添加任何附加信息，并且显着提高了视频压缩设备的压缩效率或恢复的图像的质量。

10. 发明申请

WO2011065727A3 MOVING IMAGE ENCODING/DECODING APPARATUS AND METHOD THROUGH DISTORTION BLOCK-BASED SECONDARY PREDICTION, AND A RECORDING MEDIUM THEREFOR 审中-公开
标题翻译：移动图像编码/解码设备和方法通过基于错误的块式二次预测，以及其记录介质
公开(公告)号：WO2011065727A3
公开(公告)日：2011-08-04
申请号：PCT/KR2010008297
申请日：2010-11-23
申请人： SK TELECOM CO LTD , KIM SUNYEON , LIM JEONGYEON , CHOI JAEHOON , LEE GYUMIN , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO
发明人： KIM SUNYEON , LIM JEONGYEON , CHOI JAEHOON , LEE GYUMIN , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO
IPC分类号： H04N7/32 , H04N7/24
CPC分类号： H04N19/61 , H04N19/105 , H04N19/147 , H04N19/46 , H04N19/51
摘要： An embodiment of the present invention relates to a moving image encoding/decoding apparatus and method through distortion block-based secondary prediction, and a recording medium therefor, in which the prediction error is reduced by performing secondary prediction on the distortion blocks with reference to one of the distortion blocks. In particular, the method comprises: generating a primary prediction error signal based on an input signal and a predicted signal; performing adaptive DCT transform followed by first quantization on the primary prediction error signal; deciding whether secondary prediction is necessary, based on a distortion value of a signal that is obtained through inverse quantization followed by adaptive inverse DCT transform of the first quantization signal; generating at least one secondary prediction error signal for a corresponding block that needs the secondary prediction by referring to at least one representative block recorded in a lookup table, and then selecting one of the generated signals with a relatively low cost as an optimum, secondary prediction error signal; comparing a first cost of the primary prediction error signal with a second cost of the optimum, secondary prediction error signal; performing adaptive DCT transform followed by second quantization on the optimum, secondary prediction error signal, depending on the cost comparison result; and encoding the first quantized signal or the second quantized signal.
摘要翻译：本发明的实施例涉及通过基于失真块的次级预测的运动图像编码/解码装置和方法及其记录介质，其中参考一个对失真块进行二次预测来减少预测误差的失真块。特别地，该方法包括：基于输入信号和预测信号产生主预测误差信号; 执行自适应DCT变换，随后对主预测误差信号进行第一量化; 基于通过逆量化获得的信号的失真值，然后进行第一量化信号的自适应逆DCT变换，决定二次预测是否必要; 通过参考记录在查找表中的至少一个代表性块，然后以相对较低的成本选择一个生成的信号作为最佳的辅助预测，为需要辅助预测的相应块产生至少一个二次预测误差信号误差信号; 将所述主预测误差信号的第一成本与所述最佳次预测误差信号的第二成本进行比较; 根据成本比较结果对最佳二次预测误差信号进行自适应DCT变换，接着进行二次量化; 以及对第一量化信号或第二量化信号进行编码。

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