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Entropy constrained scalar quantizer for a Laplace-Markov data source

机译：Laplace-Markov数据源的熵约束标量量化器

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摘要

A video coding system and method for coding an input frame in which the evolution of discrete cosine transform (DCT) coefficients is modeled as a Laplace-Markov process, the system comprising: a base layer processing system for generating a base layer reconstruction; an enhancement layer processing system for generating an enhancement layer reconstruction; and an entropy constrained scalar quantizer (ECSQ) system for descritizing a prediction residual between the input frame and an estimation theoretic (ET) prediction output; wherein the ECSQ system utilizes an ECSQ that comprises a uniform threshold quantizer with a deadzone size defined by the equation: maths id="MATH-US-00001" num="00001" MATH OVERFLOW="SCROLL" MROW MROW MROW MIGamma/MI MO⁡/MO MROW MO(/MO MROW MIalpha/MI MO,/MO MSUP MIt/MI MO*/MO /MSUP /MROW MO)/MO /MROW /MROW MO=/MO MROW MN2/MN MO⁢/MO MROW MO(/MO MROW MROW MFRAC MN1/MN MROW MN1/MN MO-/MO MSUP MIrho/MI MN2/MN /MSUP /MROW /MFRAC MO⁢/MO MSUP MIⅇ/MI MSUP MIt/MI MO*/MO /MSUP /MSUP /MROW MO-/MO MN1/MN /MROW MO)/MO /MROW /MROW /MROW MO,/MO MROW MROW MIwhere/MI MO⁢/MO MSTYLE MTEXT /MTEXT /MSTYLE MO⁢/MO MROW MIGamma/MI MO⁡/MO MROW MO(/MO MROW MIalpha/MI MO,/MO MIbeta/MI /MROW MO)/MO /MROW /MROW /MROW MO=/MO MROW MROW MO(/MO MROW MSUP MIⅇ/MI MIalpha/MI /MSUP MO-/MO MN1/MN /MROW MO)/MO /MROW MO⁢/MO MIexp/MI MO⁢/MO MROW MROW MO{/MO MROW MO-/MO MROW MIalpha/MI MO⁡/MO MROW MO[/MO MFRAC MROW MROW MId/MI MO⁡/MO MROW MO(/MO MROW MIalpha/MI MO-/MO MROW MIdelta/MI MO⁡/MO MROW MO(/MO MIalpha/MI MO)/MO /MROW /MROW /MROW MO)/MO /MROW /MROW MO-/MO MROW MId/MI MO⁡/MO MROW MO(/MO MROW MO-/MO MIbeta/MI /MROW MO)/MO /MROW /MROW /MROW MROW MROW MId/MI MO⁡/MO MROW MO(/MO MROW MIalpha/MI MO-/MO MROW MIdelta/MI MO⁡/MO MROW MO(/MO MIalpha/MI MO)/MO /MROW /MROW /MROW MO)/MO /MROW /MROW MO-/MO MROW MId/MI MO⁡/MO MROW MO(/MO MROW MO-/MO MROW MIdelta/MI MO⁡/MO MROW MO(/MO MIalpha/MI MO)/MO /MROW /MROW /MROW MO)/MO /MROW /MROW /MROW /MFRAC MO]/MO /MROW /MROW /MROW MO}/MO /MROW MO⁢/MO MSTYLE mspace width="0.3em" height="0.3ex"/ /MSTYLE MO./MO /MROW /MROW /MROW /MROW /MATH /MATHS

机译：一种视频编码系统和用于对输入帧进行编码的方法，其中将离散余弦变换（DCT）系数的演化建模为拉普拉斯-马尔可夫过程，该系统包括：用于产生基础层重建的基础层处理系统;用于生成增强层重构的增强层处理系统;熵约束标量量化器（ECSQ）系统，用于去除输入帧与估计理论预测输出之间的预测残差。其中ECSQ系统利用ECSQ，该ECSQ包括具有由以下公式定义的死区大小的统一阈值量化器：

Gamma（alpha，t*）= < / MO>2（11-rho2ⅇt*-1），其中Gamma < / MI>

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公开/公告号KR20050012760A

专利类型
公开/公告日2005-02-02

原文格式PDF
申请/专利权人 코닌클리케 필립스 일렉트로닉스 엔.브이.;
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申请/专利号KR20047019203
发明设计人 첸잉웨이;예종씨.;
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申请日2004-11-26
分类号H04N7/24;H04N7/26;H04N7/50;
国家 KR
入库时间 2022-08-21 22:05:56

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