公开(公告)号：US20140026020A1

公开(公告)日：2014-01-23

申请号：US14036959

申请日：2013-09-25

Applicant: GOOGLE INC.

Inventor： Chrisitian FELDBAUER ,  Willem Bastiaan KLEIJN

IPC: G06F11/10

CPC classification number: G06F11/10 ,  G10L19/005 ,  G10L19/24 ,  H03M7/30 ,  H03M13/373 ,  H03M13/6312 ,  H04N19/115 ,  H04N19/15 ,  H04N19/164 ,  H04N19/166

Abstract: A system for transmitting data packets representing a source signal across a packet data network is provided. Additionally provided are methods and an apparatus for encoding parameters representing the source signal and also decoding these parameters. The system allows adaptation to the loss scenario of data packets transmitted across the packet data network. A redundancy encoding is generated with a bit rate continuously scalable, the bit rate being provided by a bit rate controller that uses input from the network and packet-loss rate information. The specification can be changed for each coding block. At the decoder, recovery is performed by a parameter estimator based on a dynamically generated statistical model of the effect of the quantizers. The method may be added to existing lossy source coding systems or may be used to enhance the quality of the reconstructed source signal even in scenarios without packet loss.

Abstract translation: 提供了一种用于在分组数据网络上传送表示源信号的数据分组的系统。 另外提供了用于编码表示源信号的参数的方法和装置，并且还对这些参数进行解码。 该系统允许适应在分组数据网络上传输的数据分组的丢失情况。 以比特率连续可缩放的方式生成冗余编码，比特率由使用来自网络的输入的比特率控制器和分组丢失率信息提供。 可以为每个编码块更改规范。 在解码器中，基于动态生成的量化器效应的统计模型，由参数估计器进行恢复。 该方法可以添加到现有的有损耗源编码系统中，或者即使在没有分组丢失的情况下也可以用于增强重构源信号的质量。