发明名称 |
Estimator for estimating a probability distribution of a quantization index |
摘要 |
The invention relates to an estimator for estimating a probability distribution of a quantization index generated from a source coder encoding a source signal, into a sequence of quantization indices, the source signal being described by a signal model, the source coder providing a current quantization index and current side information, the estimator being configured to obtain auxiliary parameters based on a configuration of the source coder and the current available side information and the signal model, the estimator being further configured to adaptively update the probability distribution of a quantization index upon the basis of a probability density function relating to a previous state of the estimator, the auxiliary parameters, the current quantization index and the current side information. |
申请公布号 |
US9041568(B2) |
申请公布日期 |
2015.05.26 |
申请号 |
US201414186237 |
申请日期 |
2014.02.21 |
申请人 |
Huawei Technologies Co., Ltd. |
发明人 |
Klejsa Janusz;Li Minyue;Kleijn Willem Bastiaan |
分类号 |
H03M7/00;H03M7/30;H04N19/463;H04N19/91 |
主分类号 |
H03M7/00 |
代理机构 |
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代理人 |
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主权项 |
1. An estimator for estimating a probability distribution of a quantization index generated from a source coder encoding a source signal into a sequence of quantization indices, the source signal being described by a signal model, the source coder providing a current quantization index and current side information, the estimator being configured to obtain auxiliary parameters based on a configuration of the source coder and the current side information and the signal model, the estimator being further configured to adaptively update the probability distribution of a quantization index upon the basis of a probability density function relating to a previous state of the estimator, the auxiliary parameters, the current quantization index and the current side information. |
地址 |
Shenzhen CN |