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    • 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。