Invention Grant
- Patent Title: Estimator for estimating a probability distribution of a quantization index
- Patent Title (中): 用于估计量化索引的概率分布的估计器
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Application No.: US14186237Application Date: 2014-02-21
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Publication No.: US09041568B2Publication Date: 2015-05-26
- Inventor: Janusz Klejsa , Minyue Li , Willem Bastiaan Kleijn
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Main IPC: H03M7/00
- IPC: H03M7/00 ; H03M7/30 ; H04N19/463 ; H04N19/91

Abstract:
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.
Public/Granted literature
- US20140191888A1 ESTIMATOR FOR ESTIMATING A PROBABILITY DISTRIBUTION OF A QUANTIZATION INDEX Public/Granted day:2014-07-10
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