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Method and apparatus for coding and decoding color channels in layered video coding and decoding

A color channel, video encoder technology, applied in the field of color channel encoding and decoding, can solve problems such as increasing complexity

Inactive Publication Date: 2012-05-23
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in this case, not only used color channels are encoded and decoded, but also unused color channels are encoded and decoded, increasing the complexity during encoding / decoding of color channels

Method used

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  • Method and apparatus for coding and decoding color channels in layered video coding and decoding
  • Method and apparatus for coding and decoding color channels in layered video coding and decoding
  • Method and apparatus for coding and decoding color channels in layered video coding and decoding

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Embodiment Construction

[0023] Specific exemplary embodiments are described in detail below with reference to the accompanying drawings.

[0024] In the following description, the same reference numerals are used for the same elements even in different drawings. The contents defined in the description, such as detailed configuration and components, are provided to help a comprehensive understanding of the exemplary embodiments. However, the exemplary embodiments can be implemented without these specifically limited contents.

[0025] Exemplary embodiments provide a color channel encoding / decoding method for selectively encoding and decoding only selected color channels in a layered video encoder / decoder, the layered video encoding The decoder / decoder converts the image reconstructed by the base layer encoder into an image corresponding to the enhancement layer, and encodes and decodes the difference between the base layer image and the enhancement layer image. In an exemplary embodiment, the layered enc...

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Abstract

A method and apparatus for coding a color channel in a layered video coder are provided. According to the method and apparatus, if there is at least one color channel that can be skipped during coding of the color channel, a Coded Significant Pattern (CSP) of a macro block, which represents a structure of the color channel, is converted into a CSP with a structure in which the at least one color channel is skipped, and a significant transform coefficient of the macro block is coded using the CSP represented in the structure in which the at least one color channel is skipped.

Description

Technical field [0001] The apparatus and method consistent with the exemplary embodiments relate to encoding and decoding of images, and more specifically, to encoding and decoding of color channels in layered video encoding and decoding (also referred to as layered video encoding and decoding). Background technique [0002] The YUV scheme is one of the schemes used to represent color channels in image processing. The YUV scheme is a color representation scheme based on the fact that human eyes are more sensitive to brightness than chroma. In the YUV scheme, colors are divided into luminance components and chrominance components during their processing, the luminance components are defined as Y components, and the chrominance components are defined as U and V components. The Y component, which is sensitive to errors, usually requires more bits to encode than the U and V components that represent chrominance. [0003] If the Y component and the U and V components are divided into ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26
CPCH04N19/00781H04N19/00278H04N19/00321H04N7/26244H04N7/26148H04N7/50H04N7/26292H04N19/00424H04N7/26111H04N19/00315H04N19/00436H04N19/00127H04N7/26297H04N7/26351H04N19/176H04N19/30H04N19/61H04N19/132H04N19/186H04N19/187H04N19/33H04N19/44
Inventor 金大熙
Owner SAMSUNG ELECTRONICS CO LTD
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