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    • 1. 发明授权
    • Derivation process of boundary filtering strength, and deblocking filtering method and apparatus using the derivation process
    • 边界滤波强度的推导过程,使用推导过程的去块滤波方法和装置
    • US08553771B2
    • 2013-10-08
    • US11985999
    • 2007-11-19
    • Gwang Hoon ParkMin Woo ParkDoug Young SuhKyu Heon Kim
    • Gwang Hoon ParkMin Woo ParkDoug Young SuhKyu Heon Kim
    • H04N11/02
    • H04N19/00909H04N19/117H04N19/137H04N19/14H04N19/159H04N19/176H04N19/61H04N19/80H04N19/86
    • Provided are a bS derivation process and a deblocking filtering method and apparatus using illumination compensation and/or chrominance compensation, such as a multi-view video coding, in a picture coding/decoding process in which a prediction coding is performed. If neither of the two blocks are intra-coded, neither of the two blocks do contain a none-zero transformed coefficient, and motion compensation for the two blocks is performed based on the identical reference frame and the absolute difference between the horizontal or vertical components of the two motion vectors of the two blocks is less than 1, the bS of the two blocks is derived by considering whether the two blocks are coded by illumination compensation (IC) according to an embodiment of the present invention. Specifically, if both of the two blocks are coded by IC mode or neither of the two blocks are coded by IC mode, bS is set as such a value that filtering is unnecessary. On the other hand, if both of the two blocks are coded by IC mode and the blocks have different illumination change values, or only one of the blocks is coded by IC mode, the bS is derived using difference of illumination change values or the illumination change value.
    • 提供了在执行预测编码的图像编码/解码处理中使用诸如多视点视频编码之类的照明补偿和/或色度补偿的去块滤波方法和解块滤波方法和装置。 如果两个块都不是内部编码的,则两个块都不包含非零变换的系数,并且基于相同的参考帧和水平或垂直分量之间的绝对差来执行两个块的运动补偿 两个块的两个运动矢量小于1,通过考虑根据本发明的实施例的两个块是否通过照明补偿(IC)编码来导出两个块的bS。 具体地说,如果两个块都通过IC模式编码,或者两个块都不通过IC模式进行编码,则将bS设置为不需要滤波的值。 另一方面,如果通过IC模式对两个块进行编码,并且块具有不同的照明变化值,或者仅通过IC模式对块中的一个进行编码,则使用照度变化值或照明的差异导出bS 改变价值。
    • 4. 发明申请
    • Derivation process of boundary filtering strength, and deblocking filtering method and apparatus using the derivation process
    • 边界滤波强度的推导过程,使用推导过程的去块滤波方法和装置
    • US20080144722A1
    • 2008-06-19
    • US11985999
    • 2007-11-19
    • Gwang Hoon ParkMin Woo ParkDoug Young SuhKyu Heon Kim
    • Gwang Hoon ParkMin Woo ParkDoug Young SuhKyu Heon Kim
    • H04N7/26
    • H04N19/00909H04N19/117H04N19/137H04N19/14H04N19/159H04N19/176H04N19/61H04N19/80H04N19/86
    • Provided are a bS derivation process and a deblocking filtering method and apparatus using illumination compensation and/or chrominance compensation, such as a multi-view video coding, in a picture coding/decoding process in which a prediction coding is performed. If neither of the two blocks are intra-coded, neither of the two blocks do contain a none-zero transformed coefficient, and motion compensation for the two blocks is performed based on the identical reference frame and the absolute difference between the horizontal or vertical components of the two motion vectors of the two blocks is less than 1, the bS of the two blocks is derived by considering whether the two blocks are coded by illumination compensation (IC) according to an embodiment of the present invention. Specifically, if both of the two blocks are coded by IC mode or neither of the two blocks are coded by IC mode, bS is set as such a value that filtering is unnecessary. On the other hand, if both of the two blocks are coded by IC mode and the blocks have different illumination change values, or only one of the blocks is coded by IC mode, the bS is derived using difference of illumination change values or the illumination change value.
    • 提供了在执行预测编码的图像编码/解码处理中使用诸如多视点视频编码之类的照明补偿和/或色度补偿的去块滤波方法和解块滤波方法和装置。 如果两个块都不是内部编码的,则两个块都不包含非零变换的系数,并且基于相同的参考帧和水平或垂直分量之间的绝对差来执行两个块的运动补偿 两个块的两个运动矢量小于1,通过考虑根据本发明的实施例的两个块是否通过照明补偿(IC)编码来导出两个块的bS。 具体地说,如果两个块都通过IC模式编码,或者两个块都不通过IC模式进行编码,则将bS设置为不需要滤波的值。 另一方面,如果通过IC模式对两个块进行编码,并且块具有不同的照明变化值,或者仅通过IC模式对块中的一个进行编码,则使用照度变化值或照明的差异导出bS 改变价值。
    • 10. 发明申请
    • METHOD FOR ENCODING/DECODING VIDEO SEQUENCE BASED ON MCTF USING ADAPTIVELY-ADJUSTED GOP STRUCTURE
    • 使用ADAPP调整GOP结构编码/解码基于MCTF的视频序列的方法
    • US20090080519A1
    • 2009-03-26
    • US11576572
    • 2005-10-18
    • Se Yoon JeongKyu Heon KimJin Woo HongGwang Hoon ParkMin Woo Park
    • Se Yoon JeongKyu Heon KimJin Woo HongGwang Hoon ParkMin Woo Park
    • H04N5/917
    • H04N19/615H04N19/114H04N19/13H04N19/147H04N19/172H04N19/61H04N19/63H04N19/70
    • Provided is a method for performing motion compensated temporal filtering (MCTF)-based coding on a video sequence using the structure of adaptively divided group of pictures (GOP). The method includes the steps of, for each predefined 2N frame-sized group of pictures (GOP) of the video sequence, (a) encoding the 2N frame-sized GOP of the video sequence based on each of the different GOP sizes from the maximum size, 2N, to the minimum size, 2N (M is an integer between 1 and N) and obtaining different values between frames reconstructed after the encoding is performed and frames after the MCTF is performed, based on each of the different GOP sizes; (b) selecting at least one sub-GOP based on the difference values obtained by encoding the 2N frame-sized GOP of the video sequence based on each of the different GOP sizes; and (c) generating a bitstream by encoding the 2N-frame-sized GOP based on the at least one selected sub-GOP. Thereby, the MCTF-based video coding is performed by adaptively dividing the GOP size based on performance and thereby obtains high coding efficiency.
    • 提供了一种使用自适应划分的图像组(GOP)的结构对视频序列执行基于运动补偿时间滤波(MCTF)的编码的方法。 该方法包括以下步骤:针对视频序列的每个预定义的2N帧大小的图像组(GOP),(a)基于每个不同GOP大小从最大值编码视频序列的2N个帧大小的GOP 基于每个不同的GOP大小,2N(M是1和N之间的整数)并且在执行编码之后重构的帧和执行MCTF之后的帧获得不同的值; (b)基于通过基于每个不同GOP大小对视频序列的2N个帧大小的GOP进行编码而获得的差值来选择至少一个子GOP; 以及(c)基于所述至少一个选择的子GOP来对所述2N帧大小的GOP进行编码来生成比特流。 因此,通过基于性能自适应地划分GOP大小来执行基于MCTF的视频编码,从而获得高的编码效率。