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Methods of and apparatuses for adaptive entropy encoding and adaptive entropy decoding for scalable video encoding

A technology of entropy coding and entropy decoding, which is applied in the fields of digital video signal modification, television, electrical components, etc., which can solve the problems of reducing coding efficiency and achieve the effect of improving coding efficiency.

Inactive Publication Date: 2008-01-02
SUNGKYUNKWAN UNIVERSITY +1
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  • Description
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Problems solved by technology

[0013] However, in conventional scalable video coding, entropy coding does not use correlation between layers, but is performed in the same way as non-scalable video coding
As a result, the problem of reduced coding efficiency cannot be solved

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  • Methods of and apparatuses for adaptive entropy encoding and adaptive entropy decoding for scalable video encoding
  • Methods of and apparatuses for adaptive entropy encoding and adaptive entropy decoding for scalable video encoding
  • Methods of and apparatuses for adaptive entropy encoding and adaptive entropy decoding for scalable video encoding

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Embodiment approach

[0034] According to one aspect of the present invention, a scalable entropy coding method is provided. The scalable entropy coding includes: determining the context by referring to both the syntax element in the same layer as the block including the syntax element to be coded and the syntax element in the lower layer or just the syntax element in the lower layer , And use the determined context to perform entropy coding on the syntax elements.

[0035] According to another aspect of the present invention, an entropy coding method is provided. The entropy coding method includes one of the following: by referring to the syntax elements in the same layer as the block including the syntax element to be encoded, the syntax elements in the lower layer, and the syntax elements in the same layer are compared with those in the lower layer. In both of the syntax elements, the syntax element to be encoded is transformed into a binary string, the context is determined by referring to the synt...

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Abstract

Methods and apparatuses are provided for adaptive entropy encoding and adaptive entropy decoding using various context models. A scalable entropy encoding method includes determining a context by referring to both syntax elements in the same layer as a block including a syntax element to be encoded and syntax elements in lower layers or only the syntax elements in the lower layers and performing entropy encoding on the syntax element using the determined context.

Description

Technical field [0001] The method and device of the present invention relate to adaptive entropy coding and adaptive entropy decoding for scalable video coding, and more specifically, to adaptive entropy coding and adaptive entropy decoding using various context models. Background technique [0002] Scalable video coding is a video coding for transmitting transmission data after adjusting the amount of transmission data according to heterogeneous order and terminal environment, and is basic for adaptively processing data according to various transmission environments. With the development of mobile communication technologies, transmission systems, high-performance semiconductors, and video compression technologies, the demand for video services that can be adapted to various transmission environments is rapidly increasing. [0003] However, in order to adaptively process video according to changes in various environments including channel bandwidth, terminal processing capacity, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26
CPCH04N19/13H04N19/30
Inventor 全炳宇崔雄一
Owner SUNGKYUNKWAN UNIVERSITY
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