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Method and device for encoding/decoding image using bi-directional intra prediction

An intra-frame predictive coding and intra-frame prediction technology, which is applied in image communication, television, electrical components, etc., can solve problems such as limited coding efficiency, and achieve the effect of improving efficiency and preventing degradation

Active Publication Date: 2013-09-25
SK TELECOM CO LTD
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Problems solved by technology

However, in conventional intra prediction, since only simple unidirectional prediction is used, the improvement in coding efficiency is limited

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  • Method and device for encoding/decoding image using bi-directional intra prediction
  • Method and device for encoding/decoding image using bi-directional intra prediction

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Embodiment Construction

[0051] Hereinafter, at least one embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. In the following description, a video encoding apparatus (video encoding apparatus) and / or a video decoding apparatus (video decoding apparatus) according to one or more embodiments may correspond to, for example, a PC (personal computer, personal computer), a notebook computer, a PDA (personal digital assistant, personal digital assistant), PMP (portable multimedia player, portable multimedia player), PSP (PlayStation Portable, portable game station), wireless communication terminal (wireless communication terminal), smart phone (smart phone), TV, etc. Such a user terminal or a server terminal such as an application server, a service server or the like. The video encoding device and / or the video decoding device according to one or more embodiments may correspond to various devices each including: a communication device for performing c...

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Abstract

One embodiment of the present invention relates to a method and a device for encoding / decoding an image using a bi-directional intra prediction. More specifically, the present invention relates to a method and a device for encoding / decoding an image using a bi-directional intra prediction for enhancing the efficiency of an intra prediction by adaptively using not only a uni-directional prediction but also a bi-directional prediction in making the intra prediction.

Description

technical field [0001] The present disclosure relates, in one or more implementations, to methods and apparatus for encoding / decoding video using bi-directional intra prediction. More particularly, the present disclosure relates to a method and apparatus for encoding / decoding video using bi-directional intra prediction, wherein bi-directional prediction and uni-directional prediction are used for adaptive intra prediction to improve the efficiency of intra prediction. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] H.264 / AVC is the standard of the video codec with the highest compression rate in the currently standardized video codec (Video Coder and Decoder). In the H.264 / AVC standard, using directional intra prediction, 4×4 pixel integer transform (integer transform), blocks with various sizes from 16×16 pixel blocks to 4×4 pixel blocks Mode (bl...

Claims

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Application Information

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IPC IPC(8): H04N7/34H04N19/593
CPCH04N19/105H04N19/11H04N19/176H04N19/59
Inventor 林晶娟韩钟基李英烈文柱禧金海光全炳宇徐钻源
Owner SK TELECOM CO LTD
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