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    • 8. 发明公开
    • Motion vector coding method and motion vector decoding method
    • Kodierungs- und DekodierungsverfahrenfürBewegungsvektoren
    • EP2216995A2
    • 2010-08-11
    • EP10160075.7
    • 2003-04-10
    • Panasonic Corporation
    • KONDO, SatoshiKADONO, ShinyaHAGAI, MakotoABE, Kiyofumi
    • H04N7/26H04N7/50H04N7/36
    • H04N19/61H04N19/176H04N19/51H04N19/513H04N19/517H04N19/52H04N19/573
    • The present invention improves efficiency of coding motion vectors when a current block is coded using a plurality of motion vectors. A motion vector coding unit (117) codes a motion vector inputted from a motion vector detecting unit (108). A motion vector for each current block is coded based on a difference between the motion vector and a predicted vector obtained from motion vectors for previously coded neighboring blocks. The predicted vector is generated by one of the following processing: (A) the motion vectors which refer to the same picture are selected from among the motion vectors for the neighboring blocks so as to generate the predicted vector; (B) the motion vectors for the respective neighboring blocks are ordered in the predetermined order, and the motion vectors of the same order rank are selected from the ordered motion vectors so as to generate the predicted vector; and (C) the predicted vector for the second motion vector of the current block shall be the first motion vector, and if the second motion vector and the first motion vector refer to different pictures, the first motion vector is scaled according to the temporal distance between the pictures so as to generate the predicted vector.
    • 本发明利用多个运动矢量对当前块进行编码时,提高编码运动矢量的效率。 运动矢量编码单元(117)对从运动矢量检测单元(108)输入的运动矢量进行编码。 基于运动矢量与从先前编码的相邻块的运动矢量获得的预测矢量之间的差来对每个当前块的运动矢量进行编码。 通过以下处理之一生成预测矢量:(A)从相邻块的运动矢量中选择引用相同图像的运动矢量,以生成预测矢量; (B)各个相邻块的运动矢量按预定顺序排列,从有序运动矢量中选出相同次序秩的运动矢量,以产生预测矢量; 和(C)当前块的第二运动矢量的预测矢量应为第一运动矢量,如果第二运动矢量和第一运动矢量指的是不同的图像,则第一运动矢量根据时间距离 在图像之间产生预测矢量。
    • 10. 发明公开
    • VIDEO ENCODING DEVICE AND VIDEO ENCODING METHOD
    • 视频编码装置和视频编码方法
    • EP2723074A1
    • 2014-04-23
    • EP12801097.2
    • 2012-06-14
    • Panasonic Corporation
    • ABE, KiyofumiKIMURA, KazuhitoOHGOSE, HideyukiARAKAWA, HiroshiARIMURA, Koji
    • H04N7/26
    • H04N19/60H04N19/112H04N19/16H04N19/172H04N19/463H04N19/61H04N19/70
    • A video encoding device, in the case where a video of the progressive format is inputted, processes a frame as a picture, in the case where a video of the interlace format is inputted, processes a field as a picture. A video encoding device performs a common encoding process without depending on a video format regarding encoding on picture data. A video encoding device generates code string corresponding to a format of the both video by generating display control information corresponding to a format of the video and describing the display control information in the code string in display control information generator. The display control information includes sequence unit display control information and picture unit display control information, the sequence unit display control information being commonly used in a display process of all pictures that belong to a sequence to be decoded and the picture unit display control information being individually used in a display process of a picture to be decoded. A second code string generator stores each of the sequence unit display control information and the picture unit display control information in an extended information area generated in units of pictures.
    • 在输入逐行格式的视频的情况下,视频编码设备在输入隔行格式的视频的情况下将帧处理为图片,将字段处理为图片。 视频编码设备执行公共编码处理而不依赖于关于对图片数据进行编码的视频格式。 视频编码设备通过产生对应于视频的格式的显示控制信息并在显示控制信息产生器中描述代码串中的显示控制信息,产生与两种视频的格式相对应的代码串。 显示控制信息包括序列单元显示控制信息和图片单元显示控制信息,序列单元显示控制信息在属于要解码的序列的所有图片的显示过程中被共同使用,并且图片单元显示控制信息是单独的 用于要解码的图片的显示过程中。 第二代码串生成器将每个序列单元显示控制信息和图片单元显示控制信息存储在以图片为单位生成的扩展信息区域中。