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    • 71. 发明公开
    • CODING METHOD FOR MOVING PICTURE
    • 移动图片的编码方法
    • EP3258693A1
    • 2017-12-20
    • EP17184025.9
    • 2004-03-03
    • LG Electronics, Inc.
    • SOH, Yoon-SeongJEON, Byeong Moon
    • H04N19/573H04N19/61
    • H04N19/577H04N19/105H04N19/112H04N19/137H04N19/159H04N19/16H04N19/172H04N19/174H04N19/176H04N19/196H04N19/197H04N19/46H04N19/573H04N19/58H04N19/61
    • The present invention relates to a method of coding a current field macroblock in a B-frame, comprising: obtaining a reference frame picture list including multiple reference frame pictures; determining a reference frame picture index of the multiple reference frame pictures in the reference frame picture list based on display order information for the multiple reference frame pictures, reference frame picture index numbers being allocated in a display order to reference frame pictures whose display order is higher than a display order of a current frame picture and remaining reference frame picture index numbers being allocated in a reverse order to reference frame pictures whose display order is lower than the display order of the current frame picture, wherein the current frame picture includes the current field macroblock; reordering the reference frame picture index allocated to each reference frame picture in the reference frame picture list; obtaining motion vector information for the current field macroblock; alternately allocating reference field picture indexes that are increased by one to reference field pictures, starting from a reference field picture having a parity equal to a parity of the current field macroblock to a reference field picture having a parity different from the parity of the current field macroblock, while sequentially visiting the reference frame pictures according to the order of the reordered reference frame picture index; and performing motion compensation for the current field macroblock in the B-frame by using the reference field picture indicated by a reference field picture index and the motion vector information for the current field macroblock.
    • 本发明涉及一种对B帧中的当前场宏块进行编码的方法,包括:获得包括多个参考帧画面的参考帧画面列表; 基于多个参考帧图片的显示顺序信息来确定参考帧图片列表中的多个参考帧图片的参考帧图片索引,参考帧图片索引号以显示顺序被分配给参考帧图片,其显示顺序较高 比当前帧图片的显示顺序和剩余参考帧图片索引号以与显示顺序低于当前帧图片的显示顺序的参考帧图片相反的顺序被分配,其中当前帧图片包括当前帧图片 宏块; 重新排序分配给参考帧图片列表中的每个参考帧图片的参考帧图片索引; 获得当前场宏块的运动矢量信息; 从具有等于当前场宏块的奇偶性的奇偶性的参考场图像开始,向参考场图像交替地分配参考场图像索引,所述参考场图像索引具有与当前场的奇偶性不同的奇偶性的参考场图像 宏块,同时根据重新排序的参考帧图像索引的顺序依次访问参考帧图像; 并通过使用由参考场图像索引指示的参考场图像和当前场宏块的运动矢量信息来对B帧中的当前场宏块执行运动补偿。