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Process for controlling the outflow rate of a coder of digital data representative of sequences of images

机译:用于控制代表图像序列的数字数据编码器的流出速率的过程

摘要

A process for controlling the output flow rate of a coder of digital data representative of sequences of images, the coding effected by the coder including a quantization stage of quantization parameter Q, the sequences of images being made up of successive groups of images. The process consists of determining, at the moment of the presence of the i group of images at the output of the coder, the quantization parameter Q(i+1) for the coding of the (i+1) group of images so that the flow rate at the output of the coder conforms with a version of a leaky bucket defined by a size M and by a leakage rate &lgr; in terms of the activity of the scene represented by the i group of images.
机译:一种用于控制代表图像序列的数字数据编码器的输出流量的过程,该编码器所执行的编码包括量化参数Q的量化级,图像序列由连续的图像组构成。该过程包括在编码器的输出处存在第i组图像时确定用于对(i + 1)组图像进行编码的量化参数Q(i + 1),以便编码器输出处的流量与漏斗的版本一致,漏斗的大小由尺寸M和漏率&lgr定义。就第i组图像所代表的场景活动而言。

著录项

  • 公开/公告号US5724099A

    专利类型

  • 公开/公告日1998-03-03

    原文格式PDF

  • 申请/专利权人 FRANCE TELECOM;

    申请/专利号US19960658050

  • 发明设计人 ROLIN PIERRE;JAMES ROBERTS;MAHER HAMDI;

    申请日1996-06-04

  • 分类号H04N7/12;H04N11/02;H04N11/04;H04N7/00;

  • 国家 US

  • 入库时间 2022-08-22 02:40:05

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