Method and device for encoding and decoding by using parallel intra-rediction by a coding unit

A coding unit and decoding device technology, which is applied to electrical components, televisions, digital video signal modification, etc., can solve problems such as the inability to achieve parallelism with multi-partition structures, reduce compression efficiency, etc., and achieve high-speed video coding devices and video decoding devices. The effect of coding efficiency

Active Publication Date: 2013-09-04
SK TELECOM CO LTD
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Problems solved by technology

However, since parallelism has at most a subsidiary block shape within the framework of a macroblock, parallelism cannot be easily implemented under the current multi-partition structure
In addition, since pixel values ​​far from the current auxiliary block ar

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  • Method and device for encoding and decoding by using parallel intra-rediction by a coding unit
  • Method and device for encoding and decoding by using parallel intra-rediction by a coding unit
  • Method and device for encoding and decoding by using parallel intra-rediction by a coding unit

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Embodiment Construction

[0046] The video encoding device and / or video decoding device to be described below may be a user terminal (such as a personal computer (PC), a notebook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), a portable game console (PSP: play station portable), wireless communication terminal, smart phone, TV, etc.). A video encoding device and / or a video decoding device according to one or more embodiments may be a server terminal (such as an application server, a service server, etc.). A video encoding device and / or a video decoding device according to one or more embodiments may be various devices each including (a) a device configured to perform communication with various types of devices or a wired / wireless communication network A communication device (such as a communication modem, etc.), (b) a memory configured to store various programs and data for encoding or decoding video or performing inter or intra prediction for encoding and decoding, a...

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Abstract

The embodiment of the present invention relates to a method and device for encoding and decoding by using a parallel intra-prediction by a coding unit. More particularly, an embodiment of the present invention relates to a device and method for encoding/decoding images, the method comprising the steps of: generating a left extrapolation pixel of the coding unit by using the leftmost original pixel value of the coding unit or a left top block pixel value of the coding unit according to the direction of an intra-prediction mode with respect to a coding unit; generating a prediction block by intra-predicting the coding unit using an adjacent pixel which includes the left extrapolation pixel; encoding the coding unit, and encoding prediction information which includes a prediction mode performing the intra-prediction; and decoding an encoded bitstream.

Description

technical field [0001] Embodiments of the present disclosure relate to a method and apparatus for encoding and decoding using parallel intra prediction at the CU level, and more particularly, relate to being able to simultaneously perform multiple A video encoding / decoding method and apparatus for intra-predictive encoding of a coding unit block, and enabling video data compression in parallel to obtain a high-speed encoder and a high-speed decoder. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] In a video data compression device, intra-coding is performed by processing an efficiently compressed residual signal (obtained by effectively removing spatial redundancy in a frame or block) through a transform technique, quantization, and entropy encoding. [0004] Common intra-coding methods include intra-coding techniques based on directional extrapola...

Claims

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Application Information

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IPC IPC(8): H04N7/34H04N19/593
CPCH04N19/105H04N19/593H04N19/157H04N19/182H04N19/436H04N19/11H04N19/59H04N19/50
Inventor 宋振翰林晶娟崔荣镐金勇求崔润植
Owner SK TELECOM CO LTD
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