Context-based arithmetic encoding apparatus and method and context-based arithmetic decoding apparatus and method
    1.
    发明申请
    Context-based arithmetic encoding apparatus and method and context-based arithmetic decoding apparatus and method 有权
    基于上下文的算术编码装置和方法以及基于上下文的算术解码装置和方法

    公开(公告)号:US20100324912A1

    公开(公告)日:2010-12-23

    申请号:US12801632

    申请日:2010-06-17

    IPC分类号: G10L19/00

    摘要: Disclosed are a context-based arithmetic encoding apparatus and method and a context-based arithmetic decoding apparatus and method. The context-based arithmetic decoding apparatus may determine a context of a current N-tuple to be decoded, determine a Most Significant Bit (MSB) context corresponding to an MSB symbol of the current N-tuple, and determine a probability model using the context of the N-tuple and the MSB context. Subsequently, the context-based arithmetic decoding apparatus may perform a decoding on an MSB based on the determined probability model, and perform a decoding on a Least Significant Bit (LSB) based on a bit depth of the LSB derived from a process of decoding on an escape code.

    摘要翻译: 公开了一种基于上下文的算术编码装置和方法以及基于上下文的算术解码装置和方法。 基于上下文的算术解码装置可以确定要解码的当前N元组的上下文,确定与当前N元组的MSB符号相对应的最高有效位(MSB)上下文,并使用上下文确定概率模型 的N元组和MSB上下文。 随后,基于上下文的算术解码装置可以基于所确定的概率模型对MSB执行解码,并且基于从解码处理导出的LSB的位深度对最低有效位(LSB)执行解码 一个转义码。

    Context-based arithmetic encoding apparatus and method and context-based arithmetic decoding apparatus and method
    7.
    发明授权
    Context-based arithmetic encoding apparatus and method and context-based arithmetic decoding apparatus and method 有权
    基于上下文的算术编码装置和方法以及基于上下文的算术解码装置和方法

    公开(公告)号:US09171550B2

    公开(公告)日:2015-10-27

    申请号:US12801632

    申请日:2010-06-17

    摘要: Disclosed are a context-based arithmetic encoding apparatus and method and a context-based arithmetic decoding apparatus and method. The context-based arithmetic decoding apparatus may determine a context of a current N-tuple to be decoded, determine a Most Significant Bit (MSB) context corresponding to an MSB symbol of the current N-tuple, and determine a probability model using the context of the N-tuple and the MSB context. Subsequently, the context-based arithmetic decoding apparatus may perform a decoding on an MSB based on the determined probability model, and perform a decoding on a Least Significant Bit (LSB) based on a bit depth of the LSB derived from a process of decoding on an escape code.

    摘要翻译: 公开了一种基于上下文的算术编码装置和方法以及基于上下文的算术解码装置和方法。 基于上下文的算术解码装置可以确定要解码的当前N元组的上下文,确定与当前N元组的MSB符号相对应的最高有效位(MSB)上下文,并使用上下文确定概率模型 的N元组和MSB上下文。 随后,基于上下文的算术解码装置可以基于所确定的概率模型对MSB执行解码,并且基于从解码处理导出的LSB的位深度对最低有效位(LSB)执行解码 一个转义码。