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    • 56. 发明申请
    • IMAGE ENCODING/DECODING METHOD AND APPARATUS
    • 图像编码/解码方法和装置
    • WO2011004986A3
    • 2011-03-31
    • PCT/KR2010004323
    • 2010-07-02
    • SK TELECOM CO LTDKIM SUNYEONLIM JEONGYEONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGHAN JONGKIYANG JUNGYOUPKIM DONGUK
    • KIM SUNYEONLIM JEONGYEONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGHAN JONGKIYANG JUNGYOUPKIM DONGUK
    • H04N7/24H04N7/34
    • H04N19/11H04N19/176H04N19/46H04N19/593
    • The present invention relates to an image encoding/decoding method. The present invention provides an image encoding apparatus comprising: an intra-prediction mode determining unit for determining an encoder prediction mode which is an intra-prediction mode for the present block, using a candidate intra-prediction enabling mode set containing an intra-prediction mode candidate which is predictable by the image encoding apparatus from among intra-prediction mode candidates; an encoding unit for encoding a residual block obtained by subtracting a block from the prediction block obtained by predicting the present block in accordance with the encoder prediction mode; a mode information generating unit for generating mode information in accordance with whether or not the image encoding apparatus may predict the encoder prediction mode; and an encoding data generating unit for generating encoding data containing the encoded residual block and mode information. The present invention selectively encodes mode information for the intra-prediction mode, and reduces the bit rate of encoded data obtained by encoding images, thereby improving image compression efficiency and the quality of compressed images.
    • 本发明涉及图像编码/解码方法。 本发明提供了一种图像编码装置,包括:帧内预测模式确定单元,用于使用包含帧内预测模式的候选帧内预测使能模式集来确定作为当前块的帧内预测模式的编码器预测模式 可以由图像编码装置从帧内预测模式候选中预测的候选者; 编码单元,用于对通过根据编码器预测模式预测当前块而获得的预测块减去块而获得的残差块进行编码; 模式信息生成单元,用于根据图像编码装置是否可以预测编码器预测模式来生成模式信息; 以及编码数据生成单元,用于生成包含编码后的残差块和模式信息的编码数据。 本发明选择性地编码帧内预测模式的模式信息,并且减少通过编码图像获得的编码数据的比特率,从而提高图像压缩效率和压缩图像的质量。
    • 57. 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。
    • 59. 发明申请
    • APPARATUS AND METHOD FOR GENERATING/RECOVERING MOTION INFORMATION BASED ON PREDICTIVE MOTION VECTOR INDEX ENCODING, AND APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING SAME
    • 基于预测运动矢量索引编码生成/恢复运动信息的装置和方法以及使用该编码/解码的图像编码/解码的装置和方法
    • WO2012099440A3
    • 2012-12-06
    • PCT/KR2012000555
    • 2012-01-20
    • SK TELECOM CO LTDSONG JINHANLIM JEONGYEONKIM HAEKWANGMOON JOOHEELEE YUNGLYULHAN JONGKIJEON BYEUNGWOO
    • SONG JINHANLIM JEONGYEONKIM HAEKWANGMOON JOOHEELEE YUNGLYULHAN JONGKIJEON BYEUNGWOO
    • H04N7/32
    • H04N21/4821H04N19/52H04N19/61H04N19/615
    • Disclosed are an apparatus and a method for generating/recovering motion information based on predictive motion vector index encoding, and to an apparatus and a method for image encoding/decoding using the same. The image encoding/decoding apparatus according to an embodiment of the present invention comprises an image encoder which generates information on the index for a predictive motion vector of a current block based on the motion vector of identically located blocks of a reference frame and the motion vector of blocks existing near the current block, and generates motion information on the current block, including a differential motion vector obtained by subtracting the predictive motion vector from the motion vector of the current block, a reference frame index information and a predictive motion vector index information, when performing inter-prediction for the current block using the reference frame; and an image decoder which recovers the predictive motion vector based on the predictive motion vector index information, adds the recovered predictive motion vector and the differential motion vector to recover the motion vector of the objective block to be decoded, and recovers the objective block based on the recovered motion vector of the objective block.
    • 公开了一种基于预测运动矢量索引编码生成/恢复运动信息的装置和方法,以及使用该装置和方法进行图像编码/解码的装置和方法。 根据本发明实施例的图像编码/解码设备包括:图像编码器,其基于参考帧的相同位置的块的运动矢量和运动矢量生成关于当前块的预测运动矢量的索引的信息 并且生成当前块的运动信息,该运动信息包括通过从当前块的运动矢量中减去预测运动矢量而获得的差分运动矢量,参考帧索引信息和预测运动矢量索引信息 当使用参考帧对当前块执行帧间预测时; 和基于预测运动矢量索引信息恢复预测运动矢量的图像解码器,将恢复的预测运动矢量和差分运动矢量相加以恢复要解码的目标块的运动矢量,并且基于 目标块的恢复的运动矢量。