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Method and device for encoding/decoding image using extended skip mode

A skip mode, coding technology, applied in image communication, television, electrical components, etc., can solve the problems of reduced correlation and reduced accuracy, and achieve the effect of improving compression efficiency

Inactive Publication Date: 2013-06-05
SK TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, since the correlation between two reference blocks decreases in the case of sudden scene changes or sudden camera movements, which makes it insufficient to approximate the current block using only the weighted sum, the accuracy of motion compensation using the weighted sum will reduce

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  • Method and device for encoding/decoding image using extended skip mode
  • Method and device for encoding/decoding image using extended skip mode
  • Method and device for encoding/decoding image using extended skip mode

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Embodiment Construction

[0046] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the following description, the same elements will be denoted by the same reference numerals even if they are shown in different drawings. Also, in the following description of the present disclosure, detailed descriptions of known functions and structures incorporated herein will be omitted for clarity.

[0047] Also, terms such as first, second, A, B, (a), and (b) may be used when describing components of the present disclosure. These terms are for the purpose of distinguishing one component from another only, not to imply or suggest the substance, order or sequence of the components. If a component is described as being "connected", "coupled" or "linked" to another component, this may mean that the components are not only directly "connected", "coupled" or "linked", but also via The third component is indirectly "connected," "coupled," or "l...

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Abstract

The present invention relates to a method and a device for encoding / decoding an image using an extended skip mode. One embodiment of the present invention provides the method and the device for encoding / decoding the image using the extended skip mode comprising the following steps: setting a motion vector of a back reference block of peripheral blocks around the current block as the predictive motion vector of the current block, or setting the predictive motion vector from a motion vector of the front reference block of the block in a back reference picture, which is at the same location as the current block; motion-compensating using the predictive motion vector; and setting a prediction mode when the result of the motion-compensation satisfies the optimal skip condition.

Description

technical field [0001] One or more embodiments of the present disclosure relate to a method and apparatus for encoding / decoding an image using an extended skip mode. More particularly, the present disclosure relates to a method and apparatus for encoding / decoding images using an extended skip mode, which enables Applying a unidirectional skip mode, which efficiently removes redundancy between the current block and reference image data, thereby improving compression efficiency, thus further improving video data compression performance and providing excellent reconstructed images at the same bit rate quality. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Among video data compression devices, conventional H.264 / AVC defines a skip mode as a mode that does not transmit any data (quantized transform coefficients, motion vectors, etc.) other than mode ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50
CPCH04N19/00218H04N19/00066H04N19/00151H04N19/0069H04N7/24H04N19/00278H04N19/00036H04N7/32H04N19/00896H04N19/00696H04N19/00909H04N19/00175H04N19/00781H04N19/109H04N19/117H04N19/139H04N19/147H04N19/159H04N19/176H04N19/52H04N19/61H04N19/82H04N19/86H04N19/567
Inventor 宋振翰林晶娟金勇求崔润植崔荣镐金成帝
Owner SK TELECOM CO LTD
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