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    • 54. 发明公开
    • 인트라 예측 모드 부호화/복호화 방법 및 장치
    • 编码/解码内部预测模式的方法及其装置
    • KR1020130088079A
    • 2013-08-07
    • KR1020130010488
    • 2013-01-30
    • 한국전자통신연구원한국항공대학교산학협력단
    • 이진호김휘용임성창최진수김진웅김재곤최해철이상용
    • H04N19/59
    • H04N19/157H04N19/11H04N19/176H04N19/198H04N19/593H04N19/70
    • PURPOSE: An intra prediction mode encoding/decoding method and an apparatus thereof are provided to derive a most probable mode (MPM) from a peripheral prediction unit during the encoding/decoding of an intra prediction mode, and perform alignment operation according to the presence of an MPM having the same prediction mode as the intra prediction mode of a current prediction unit among the derived MPMs, thereby reducing the computational complexity of an image encoder/decoder. CONSTITUTION: If there is an MPM having the same prediction mode as the intra prediction mode of a current prediction unit among MPMs derived from a peripheral prediction unit adjacent to the current prediction unit, an encoder and/or decoder encodes and/or decodes an index indicating which MPM is identical to the intra prediction mode of the current prediction unit (S1010~S1030). If not so, the encoder and/or decoder align the derived MPMs based on the mode value of the MPM. By using a residual intra prediction mode, the intra prediction mode of the current prediction unit is encoded and/or decoded (S1040,S1050). [Reference numerals] (S1010) Derive MPMs from a peripheral prediction unit; (S1020) Intra prediction mode of a current prediction unit (Intramode) == MPM ? (prev_intra_luma_pred_flag encode / decode); (S1030) mpm_idx encode / decode; (S1040) Realign MPM by min/max(sorting operation); (S1050) Rem_intra_luma_pred_mode encode / decode
    • 目的:提供帧内预测模式编码/解码方法及其装置,以在帧内预测模式的编码/解码期间从外围预测单元导出最可能模式(MPM),并根据存在 MPM具有与导出的MPM中的当前预测单元的帧内预测模式相同的预测模式,从而降低图像编码器/解码器的计算复杂度。 构成:如果从与当前预测单元相邻的外围预测单元导出的MPM中存在与当前预测单元的帧内预测模式相同的预测模式的MPM,则编码器和/或解码器对索引进行编码和/或解码 指示哪个MPM与当前预测单元的帧内预测模式相同(S1010〜S1030)。 如果不是这样,编码器和/或解码器基于MPM的模式值对准导出的MPM。 通过使用残差帧内预测模式,对当前预测单元的帧内预测模式进行编码和/或解码(S1040,S1050)。 (附图标记)(S1010)来自外围预测单元的MPM导出; (S1020)当前预测单元的帧内预测模式(Intramode)== MPM? (prev_intra_luma_pred_flag encode / decode); (S1030)mpm_idx编码/解码; (S1040)以最小/最大重新排列MPM(排序操作); (S1050)Rem_intra_luma_pred_mode编码/解码
    • 55. 发明公开
    • 움직임 벡터 예측기를 이용한 움직임 벡터 부호화/복호화 방법 및 장치
    • 使用运动矢量预测器的运动矢量编码/解码的方法和装置
    • KR1020130030181A
    • 2013-03-26
    • KR1020120005916
    • 2012-01-18
    • 한국전자통신연구원한국항공대학교산학협력단
    • 임성창김휘용이진호최진수김진웅김재곤이상용박운기
    • H04N19/51H04N19/139
    • H04N19/56H04N19/105H04N19/13H04N19/139H04N19/176H04N19/513H04N19/52H04N19/593H04N19/70
    • PURPOSE: A method for encoding and decoding a motion vector by using a motion vector predictor and a device thereof are provided to increase encoding efficiency by efficiently encoding and decoding the motion vector. CONSTITUTION: When an MV(Motion Vector) encoding/decoding device performs MV prediction, the device performs a step(0) for inducing a left MV predictor, a step(1) for inducing an upper-end MV predictor, and a step(2) for inducing a temporal MV predictor. When the three MV predictors are induced, the device checks redundancy of an MV to remove a MV predictor having the same MV from an MV predictor list. [Reference numerals] (AA) When performing motion vector prediction; (BB) [0]step of inducing a left motion vector predictor; (CC) [1]step of inducing a right motion vector predictor; (DD) [2]step of inducing a temporal motion vector predictor; (EE) Image encoding/decoding method and apparatus performing the above in parallel
    • 目的:提供一种通过使用运动矢量预测器及其装置对运动矢量进行编码和解码的方法,以通过有效地对运动矢量进行编码和解码来提高编码效率。 构成:当MV(运动矢量)编码/解码装置执行MV预测时,装置执行用于诱导左MV预测器的步骤(0),用于诱导上级MV预测器的步骤(1)和步骤 2)用于诱导时间MV预测器。 当感应到三个MV预测器时,器件检查MV的冗余以从MV预测器列表中移除具有相同MV的MV预测器。 (标号)(AA)进行运动矢量预测时, (BB)[0]诱导左运动矢量预测器的步骤; (CC)[1]诱导右运动矢量预测器的步骤; (DD)[2]诱导时间运动矢量预测器的步骤; (EE)并行执行上述的图像编码/解码方法和装置