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1. 发明申请

WO2011052913A3 APPARATUS AND METHOD FOR ENCODING/DECODING VIDEO THROUGH A VECTOR QUANTIZATION-BASED SECONDARY PREDICTION, AND RECORDING MEDIUM 审中-公开
标题翻译：通过基于矢量量化的二次预测对视频进行编码/解码的装置和方法以及记录介质
公开(公告)号：WO2011052913A3
公开(公告)日：2011-10-27
申请号：PCT/KR2010007028
申请日：2010-10-14
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： H04N7/28 , H04N7/32
CPC分类号： H04N19/94
摘要： One embodiment of the present invention relates to an apparatus and method for encoding/decoding video through a vector quantization-based secondary prediction, which performs a secondary prediction on the basis of a vector quantization to reduce prediction errors. The present invention also relates to a recording medium. The method of the present invention comprises: generating a primary prediction error signal on the basis of an input signal and a prediction signal; performing an adaptive discrete cosine transform (DCT) process on the primary prediction error signal, and performing a primary quantization process on the transformed signal; determining, for each block, whether or not a secondary prediction is required, on the basis of the distorted value of the signal obtained by performing an inverse quantization process on the primarily quantized signal and performing an adaptive inverse discrete cosine transform process on the inverse quantized signal, and on the basis of a preset reference value; performing a vector quantization process on the primary prediction error signal corresponding to one or more relevant blocks which require the secondary prediction, in order to obtain a center value; generating a secondary prediction error signal for said relevant blocks on the basis of the primary prediction signal and the center value; performing an adaptive discrete cosine transform (DCT) process on the secondary prediction error signal, and performing a secondary quantization process on the transformed signal; and encoding the primarily quantized signal or the secondarily quantized signal.
摘要翻译：本发明的一个实施例涉及一种用于通过基于矢量量化的二次预测对视频进行编码/解码的设备和方法，其基于矢量量化执行二次预测以减少预测误差。本发明还涉及一种记录介质。本发明的方法包括：基于输入信号和预测信号产生主预测误差信号; 对主预测误差信号执行自适应离散余弦变换（DCT）处理，并对变换后的信号执行主量化处理; 基于通过对一次量化的信号执行逆量化处理而获得的信号的失真值并且对逆量化的信号执行自适应逆离散余弦变换处理来针对每个块确定是否需要二次预测信号，并基于预设的参考值; 对与需要二次预测的一个或多个相关块对应的一次预测误差信号执行矢量量化处理，以获得中心值; 基于主预测信号和中心值产生用于所述相关块的二次预测误差信号; 对二次预测误差信号执行自适应离散余弦变换（DCT）处理，并且对经变换的信号执行二次量化处理; 并对该一次量化信号或该二次量化信号进行编码。

2. 发明申请

WO2010047492A3 MOVING PICTURE ENCODER, 2D ALIGNMENT TRANSFORMATION DEVICE AND METHOD OF IMAGE SIGNAL FOR THE SAME, AND RECORDING MEDIUM THEREFOR 审中-公开
标题翻译：移动图像编码器，2D对准转换装置及其图像信号的方法及其记录介质
公开(公告)号：WO2010047492A3
公开(公告)日：2010-07-29
申请号：PCT/KR2009005923
申请日：2009-10-15
申请人： SK TELECOM CO LTD , KIM HAYOON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNGHO , KIM SUNGJEI
发明人： KIM HAYOON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNGHO , KIM SUNGJEI
IPC分类号： H04N7/24
CPC分类号： H04N19/85 , H04N19/61
摘要： The present invention relates to a moving picture encoder, a 2D alignment transformation device and method of an image signal for the same, and a recording medium therefor. The 2D alignment transformation device of an image signal according to the present invention comprises: a horizontal alignment section which horizontally aligns pixels of an image block in the order of size in the horizontal direction; a vertical alignment section which vertically aligns pixels of the image block in the vertical direction; and an index map generator which generates an index map for original positions of the horizontally and vertically aligned pixels. As any image signals can be rearranged as 2D-aligned image signals in the order of size and these aligned image signals can efficiently remove non-continuous points of existing images, energy concentration effects of block-based transformation techniques, such as DCT etc. are enhanced and coding efficiency can thus be maximized.
摘要翻译：本发明涉及运动图像编码器，2D对准变换装置及其图像信号的方法及其记录介质。根据本发明的图像信号的2D对准变换装置包括：水平对准部，其水平对准图像块的像素在水平方向上的大小; 在垂直方向垂直排列图像块的像素的垂直对准部; 以及索引图生成器，其生成水平和垂直排列的像素的原始位置的索引图。由于任何图像信号可以按尺寸的顺序重排为2D对准的图像信号，并且这些对准的图像信号可以有效地去除现有图像的非连续点，所以基于块的变换技术（例如DCT等）的能量集中效应是因此可以使增强和编码效率最大化。

3. 发明申请

WO2010011047A3 APPARATUS AND METHOD FOR DETERMINING ADAPTIVE FILTER TAP TO ENCODE WAVELET TRANSFORM COEFFICIENT, WAVELET TRANSFORM APPARATUS AND METHOD USING THE SAME, AND RECORDING MEDIUM FOR THE SAME 审中-公开
标题翻译：用于确定自适应滤光片以编码小波变换系数的装置和方法，小波变换装置和使用其的方法及其记录介质
公开(公告)号：WO2010011047A3
公开(公告)日：2010-05-27
申请号：PCT/KR2009003888
申请日：2009-07-15
申请人： SK TELECOM CO LTD , KIM HAYOON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNGHO , KIM SUNGJEI
发明人： KIM HAYOON , CHOE YOONSIK , KIM YONGGOO , CHOI YUNGHO , KIM SUNGJEI
IPC分类号： H04N7/26
CPC分类号： H04N19/635 , H04N19/122
摘要： The present invention relates to an apparatus and a method for determining an adaptive filter tap to encode a wavelet transform coefficient, a wavelet transform apparatus and method using the same, and a recoding medium for the same, wherein the apparatus and the method for determining an adaptive filter tap enables the energy to be minimized in a high band in consideration of not only the existence and nonexistence of an edge but also the location of the edge. The apparatuses, the methods and the recording medium are provided in the invention so that the invention may adaptively determine the filter tap to code the wavelet transform coefficient efficiently. Therefore, the invention is able to prevent ringing artifacts and increase coding efficiency while maintaining clear definition on the edges.
摘要翻译：本发明涉及一种用于确定用于对小波变换系数进行编码的自适应滤波器抽头的装置和方法，小波变换装置及其使用方法，以及用于其的记录介质，其中，所述装置和方法用于确定考虑到边缘的存在和不存在以及边缘的位置，自适应滤波器抽头使得能量在高频带中被最小化。在本发明中提供了装置，方法和记录介质，使得本发明可以自适应地确定滤波器抽头以有效地编码小波变换系数。因此，本发明能够防止振铃伪像并提高编码效率，同时保持边缘上的清晰定义。

4. 发明申请

WO2011071321A3 APPARATUS AND METHOD FOR ENCODING/DECODING A MULTI-PLANE IMAGE, AND RECORDING MEDIUM FOR SAME 审中-公开
标题翻译：用于编码/解码多平面图像的设备和方法以及相同的记录介质
公开(公告)号：WO2011071321A3
公开(公告)日：2011-11-10
申请号：PCT/KR2010008803
申请日：2010-12-09
申请人： SK TELECOM CO LTD , KIM SUNYEON , LIM JEONGYEON , LEE GYUMIN , CHOI JAEHOON , CHOE YOONSIK , CHOI YUNGHO , KIM YONGGOO , JEONG JINWOO
发明人： KIM SUNYEON , LIM JEONGYEON , LEE GYUMIN , CHOI JAEHOON , CHOE YOONSIK , CHOI YUNGHO , KIM YONGGOO , JEONG JINWOO
IPC分类号： H04N7/26
CPC分类号： H04N19/187 , H04N19/146 , H04N19/186
摘要： One embodiment of the present invention relates to a technique for encoding a multi-plane image, which adaptively determines the order of encoding planes in accordance with the characteristics of an inputted image, and encodes the multi-plane image. An apparatus for encoding a multi-plane image comprises: a plane encoding order determining unit which adaptively determines, on the basis of encoding costs, the order of encoding a plurality of color planes inputted by a predetermined unit; and an encoding unit which encodes the plurality of color planes, inputted by the predetermined unit, in accordance with the determined order. The apparatus of the present invention adaptively determines the order of encoding planes in accordance with the characteristics of an inputted image, and encodes the multi-plane image, and therefore provides further improved encoding efficiency as compared to conventional apparatuses which encode images in a fixed order, and provides further improved encoding efficiency, particularly when predictions on the planes are performed.
摘要翻译：本发明的一个实施例涉及用于对多平面图像进行编码的技术，该多平面图像根据输入图像的特性自适应地确定编码平面的顺序，并对该多平面图像进行编码。一种用于对多平面图像进行编码的设备，包括：平面编码顺序确定单元，其基于编码成本自适应地确定对以预定单位输入的多个颜色平面进行编码的顺序; 以及编码单元，其根据所确定的顺序对由所述预定单元输入的所述多个色彩平面进行编码。本发明的设备根据输入图像的特性自适应地确定编码平面的顺序，并对多平面图像进行编码，因此与以固定顺序编码图像的传统设备相比，提供了进一步提高的编码效率并且提供进一步改进的编码效率，特别是当执行对平面的预测时。

5. 发明申请

WO2011055908A3 METHOD AND APPARATUS FOR IMAGE ENCODING/DECODING USING A TOOLSET 审中-公开
标题翻译：使用工具对图像编码/解码的方法和装置
公开(公告)号：WO2011055908A3
公开(公告)日：2011-07-14
申请号：PCT/KR2010006739
申请日：2010-10-01
申请人： SK TELECOM CO LTD , KIM SUNYEON , LIM JEONGYEON , LEE GYUMIN , CHOI JAEHOON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO
发明人： KIM SUNYEON , LIM JEONGYEON , LEE GYUMIN , CHOI JAEHOON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO
IPC分类号： H04N7/24
CPC分类号： H04N19/12 , H04N19/46
摘要： The present invention relates to a method and apparatus for image encoding/decoding using a toolset. The present invention provides an image-encoding method which involves encoding images of encoding units in accordance with a plurality of encoding schemes contained in an encoding toolset, selects one encoding scheme from among the plurality of encoding schemes for each of the encoding units, outputs image data encoded in accordance with the selected encoding scheme, stores the frequency of selection of the encoding scheme selected for each of the encoding units, determines whether or not to update the encoding toolset on the basis of the frequency of selection of the encoding scheme and/or the encoding cost for the selected encoding scheme, and updates the encoding toolset. According to the present invention, a high-efficiency image-encoding scheme can be selected and image encoding can be performed while reducing not only the amount of calculation or complexity in the implementation of a system required for selecting the high-efficiency encoding scheme, but also the amount of bits required for encoding additional information for indicating the selected encoding scheme, thereby improving compression efficiency and simplifying the implementation of the system.
摘要翻译：本发明涉及使用工具集进行图像编码/解码的方法和装置。本发明提供了一种图像编码方法，其包括根据包含在编码工具集中的多个编码方案对编码单元的图像进行编码，从编码单元中的每一个的多个编码方案中选择一个编码方案，输出图像根据所选择的编码方案编码的数据存储为每个编码单元选择的编码方案的选择频率，根据编码方案的选择频率确定是否更新编码工具集，和/ 或所选编码方案的编码成本，并更新编码工具集。根据本发明，可以选择高效率图像编码方案，并且可以执行图像编码，同时不仅减少了选择高效编码方案所需的系统的计算量或复杂度，而且也是编码用于指示所选择的编码方案的附加信息所需的比特量，从而提高压缩效率并简化系统的实现。

6. 发明申请

WO2011021844A3 METHOD AND APPARATUS FOR ENCODING AN INTRA-PREDICTION MODE USING VARIABLE LENGTH CODES, AND RECORDING MEDIUM FOR SAME 审中-公开
标题翻译：用于使用可变长度代码编码内预测模式的方法和设备以及用于相同记录介质的方法和设备
公开(公告)号：WO2011021844A3
公开(公告)日：2011-07-07
申请号：PCT/KR2010005448
申请日：2010-08-18
申请人： SK TELECOM CO LTD , KIM SUNYEON , LIM JEONGYEON , CHOE YOONSIK , CHOI YUNGHO , KIM YONGGOO , KIM JONGHO
发明人： KIM SUNYEON , LIM JEONGYEON , CHOE YOONSIK , CHOI YUNGHO , KIM YONGGOO , KIM JONGHO
IPC分类号： H04N7/26
CPC分类号： H04N7/26 , H04N19/11 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/593 , H04N19/61
摘要： One embodiment of the present invention relates to a method and apparatus for encoding an intra-prediction mode using variable length codes, as well as to a recording medium for same, which involve determining an intra-prediction mode of the current block, determining, as a most probable mode (MPM), the mode having the smallest mode number from among intra-prediction modes of encoded peripheral blocks, generating and allocating variable length codes for all of the intra-prediction modes, in the order of code length such that code with the shortest length comes first, according to the directional similarity to the MPM such that the mode with the highest directional similarity has the highest priority, and encoding the intra-prediction mode of the current block on the basis of the allocated variable length codes. The method and apparatus of the present invention generate efficient variable length codes in consideration of the high correlation existing in the intra-prediction modes of the current block and the peripheral blocks even in the event the intra-prediction mode of the current block does not match the MPM derived with reference to the peripheral blocks, and efficiently compressing information on the intra-prediction mode of the current block using the thus-generated variable length codes, thereby improving intra video encoding performance.
摘要翻译：本发明的一个实施例涉及一种用于使用可变长度码对帧内预测模式进行编码的方法和设备，并涉及用于其的记录介质，其涉及确定当前块的帧内预测模式，最可能模式（MPM），即编码周边块的帧内预测模式中具有最小模式编号的模式，按照码长的顺序为所有帧内预测模式产生和分配可变长度编码，使得码根据与MPM的方向相似性使得具有最高方向相似性的模式具有最高优先级，并且基于所分配的可变长度码来编码当前块的帧内预测模式。考虑到当前块和外围块的帧内预测模式中存在的高相关性，即使在当前块的帧内预测模式不匹配的情况下，本发明的方法和设备也生成高效的可变长度码参考外围块导出的MPM，并且使用由此生成的可变长度码有效地压缩关于当前块的帧内预测模式的信息，从而提高帧内视频编码性能。

7. 发明申请

WO2010050699A3 MOTION PICTURE ENCODING/DECODING APPARATUS, ADAPTIVE DEBLOCKING FILTERING APPARATUS AND FILTERING METHOD FOR SAME, AND RECORDING MEDIUM 审中-公开
标题翻译：运动图像编码/解码装置，自适应解锁滤波装置和滤波方法及记录介质
公开(公告)号：WO2010050699A3
公开(公告)日：2010-08-05
申请号：PCT/KR2009006127
申请日：2009-10-22
申请人： SK TELECOM CO LTD , KIM HAYOON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO , KIM BYONGHO , AHN JUNHYUK
发明人： KIM HAYOON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO , KIM BYONGHO , AHN JUNHYUK
IPC分类号： H04N7/24 , H04N7/30
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/61 , H04N19/82
摘要： The present invention relates to a motion picture encoding/decoding apparatus, an adaptive deblocking filtering apparatus and a filtering method for same, and a recording medium. The deblocking filtering apparatus according to one embodiment of the present invention comprises: a boundary intensity determination unit which determines the intensity of the boundary between sub-blocks of the present block; a direction selection unit which sequentially selects directions one by one from among a plurality of directions which are preset on the basis of the boundary; a pixel selection unit which selects pixels to be filtered on the basis of the selected direction; a filtering determination unit which determines whether or not to perform filtering in the selected direction in accordance with the relationship among pixel values of the selected pixels; and a filtering unit which performs filtering on the selected pixels in the selected directions in accordance with the result of the determination of the filtering determination unit. The present invention subjects pixel-wide deblocking filtering in a plurality of directions as well as in vertical and horizontal directions, thus effectively removing block distortions resulting from a diagonal discontinuity caused by edges in a plurality of diagonal directions.
摘要翻译：本发明涉及运动图像编码/解码装置，自适应去块滤波装置及其滤波方法和记录介质。根据本发明的一个实施例的去块滤波装置包括：边界强度确定单元，确定当前块的子块之间的边界的强度; 方向选择单元，其从基于边界预先设定的多个方向依次选择方向一个一个; 像素选择单元，其基于所选择的方向选择要滤波的像素; 滤波确定单元，其根据所选择的像素的像素值之间的关系确定是否在所选择的方向上执行滤波; 以及滤波单元，其根据滤波确定单元的确定结果对所选择的方向上的所选择的像素进行滤波。本发明在多个方向以及垂直和水平方向上进行像素宽的去块滤波，从而有效地去除由多个对角线方向上的边缘引起的对角线不连续性导致的块失真。

8. 发明申请

WO2010044559A3 MOTION PICTURE ENCODING/DECODING APPARATUS, AND APPARATUS AND METHOD FOR ADAPTIVE OVERLAPPED BLOCK MOTION COMPENSATION BY VARIABLE UNIT FOR SAME 审中-公开
标题翻译：运动图像编码/解码装置以及用于通过相同的变量单元对其自适应重叠块运动补偿的装置和方法
公开(公告)号：WO2010044559A3
公开(公告)日：2010-07-29
申请号：PCT/KR2009005688
申请日：2009-10-06
申请人： SK TELECOM CO LTD , KIM HAYOON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO , KIM BYONGHO
发明人： KIM HAYOON , CHOI YUNGHO , CHOE YOONSIK , KIM YONGGOO , KIM BYONGHO
IPC分类号： H04N7/24
CPC分类号： H04N7/363 , H04N19/583
摘要： The present invention relates to a motion picture encoding/decoding apparatus, and apparatus and method for adaptive overlapped block motion compensation by a variable unit for same. The apparatus and the method for adaptive overlapped block motion compensation by a variable unit, according to the present invention, enable an encoder to perform an adaptive overlapped block motion compensation for a plurality of predetermined scan modes and sampling modes, and enable the encoder to calculate the computation volume occurring in said compensation and residual pixel energy, estimate the performance for each mode based on the calculation, determine an optimum scan mode and an optimum sampling mode, and perform a motion compensation, thus enabling a decoder to perform a motion compensation with optimum performance and less computing volume based on the determined mode.
摘要翻译：本发明涉及一种运动图像编码/解码设备，以及用于通过相同的可变单元进行自适应重叠块运动补偿的设备和方法。根据本发明的用于通过可变单元进行自适应重叠块运动补偿的设备和方法使得编码器能够针对多个预定扫描模式和采样模式执行自适应重叠块运动补偿，并且使编码器能够计算在所述补偿和剩余像素能量中出现的计算量，基于计算估计每种模式的性能，确定最佳扫描模式和最佳采样模式，并且执行运动补偿，从而使得解码器能够利用基于确定的模式的最佳性能和较少的计算量。

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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