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    VIDEO ENCODING AMOUNT CONTROL METHOD, VIDEO ENCODING AMOUNT CONTROL DEVICE, VIDEO ENCODING AMOUNT CONTROL PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM ON WHICH SAID PROGRAM IS RECORDED
    4.
    发明公开
    VIDEO ENCODING AMOUNT CONTROL METHOD, VIDEO ENCODING AMOUNT CONTROL DEVICE, VIDEO ENCODING AMOUNT CONTROL PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM ON WHICH SAID PROGRAM IS RECORDED 有权
    方法用于控制视频编码量控制装置，节目的视频编码量用于控制视频编码和QUANTITY计算机可读记录介质的事实记录的节目

    公开(公告)号：EP2265025A4

    公开(公告)日：2013-01-30

    申请号：EP09758343

    申请日：2009-06-03

    申请人： NIPPON TELEGRAPH & TELEPHONE

    发明人： TANIDA RYUICHI ,  SHIMIZU ATSUSHI

    IPC分类号： H04N19/00 ,  H04N19/115 ,  H04N19/134 ,  H04N19/136 ,  H04N19/146 ,  H04N19/194 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/61 ,  H04N19/625 ,  H04N19/85 ,  H04N19/91

    CPC分类号： H04N19/146 ,  H04N19/149

    摘要： A video bitrate control method and apparatus that control a generated bitrate of a picture to be encoded, based on an initial value of an allocation bitrate that is previously given to each picture are provided, wherein a difference between an allocation bitrate and an actually generated bitrate of a picture that has been encoded is obtained as an error bitrate, one of a maximum value and a minimum value of the allocation bitrate is selected for a plurality of subsequent pictures, as an allowable correction range, based on the sign of the error bitrate, the maximum value and the minimum value of the allocation bitrate being calculated based on the initial value of the allocation bitrate and a previously given constant, a difference between the allowable correction range and the allocation bitrate is obtained for the plurality of pictures, as an allowable variation bitrate, the ratio of the sum of allowable variation bitrates and the error bitrate is obtained as an update rate, a variation bitrate for the allocation bitrate is calculated for the plurality of pictures based on the allowable variation bitrate and the update rate, and the allocation bitrate of each of the plurality of pictures is updated based on the variation bitrate.

    摘要翻译： 一种视频码量控制方法和装置做了控制的画面的生成比特率进行编码，在没有预先赋予各图片分配码量的初始值根据被提供，worin上分配比特率和实际产生的比特率之间的差 一个图象并已被编码，得到作为错误比特率的，最大值和分配码量的最小值中的一个被选择用于后续图片的复数，以校正容许范围内，基于误差码量的正负号 的最大值和分配码量的最小值基于分配码量的初始值来计算和预先给定的常数，校正容许范围和分配比特率之间的差获得的图片的多元性，如在 可变动码量，可变动码量的总和与误差码量的比率，得到作为更新速率，Variat 离子比特率的分配的比特率被计算为基于所述可变动码量和更新速率画面的多个，并且每个图片的所述多个分配的比特率是基于变动码量进行更新。

    QUANTIZATION CONTROL METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM CONTAINING THE PROGRAM
    6.
    发明公开
    QUANTIZATION CONTROL METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM CONTAINING THE PROGRAM 有权
    数量统计数据显示， - 多米尼加共和国非洲发展新伙伴澳大利亚麻省理工学院

    公开(公告)号：EP2120460A4

    公开(公告)日：2010-06-02

    申请号：EP08721368

    申请日：2008-03-05

    申请人： NIPPON TELEGRAPH & TELEPHONE

    发明人： SHIMIZU ATSUSHI ,  TANIDA RYUICHI

    IPC分类号： H04N19/124 ,  H04N19/00 ,  H04N19/126 ,  H04N19/142 ,  H04N19/146 ,  H04N19/152 ,  H04N19/196 ,  H04N19/503 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91

    CPC分类号： H04N19/124 ,  H04N19/136 ,  H04N19/142 ,  H04N19/152 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/179 ,  H04N19/61

    摘要： A quantization control method used in a video encoding which encodes a video image and performs control for making an encoding bit rate approach a predetermined target bit rate. The quantization control method includes measuring a differential amount of code between a target amount of code and an amount of generated code; determining whether or not a predetermined condition has occurred; determining, when it is determined that the condition has occurred, a variation for an amount of feedback which increases or decreases a quantization step size, and changing the amount of feedback based on the determined variation; and increasing or decreasing the quantization step size based on the measured differential amount of code and the changed amount of feedback. If there are a plurality of the predetermined conditions, a final variation for the amount of feedback may be determined by applying a specific operation to variations for the amount of feedback, which are determined for the individual conditions.

    摘要翻译： 一种在视频编码中使用的量化控制方法，其对视频图像进行编码并执行使编码比特率接近预定目标比特率的控制。 量化控制方法包括：测量目标代码量与生成代码量之间的差分代码量; 确定是否发生了预定条件; 确定当确定条件已经发生时，增加或减少量化步长的反馈量的变化，以及基于所确定的变化来改变反馈量; 以及基于所测量的差分代码量和改变的反馈量来增加或减少量化步长。 如果存在多个预定条件，则可以通过对针对各个条件确定的反馈量的变化应用特定操作来确定反馈量的最终变化。