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Apparatus and method for encoding/decoding additional intra-frame information

A technology of adding frames and devices, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as difficulty in improving the total compression rate, and achieve the effect of reducing the amount of information

Active Publication Date: 2016-11-02
SK TELECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, a higher compression rate can be achieved by performing intra prediction on a finer image, but additional information is required in order to decode it, i.e., many signals such as the block division method and the intra prediction mode, which makes it difficult to increase the overall compression ratio

Method used

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Embodiment Construction

[0043] Hereinafter, an apparatus and method for encoding / decoding additional intra information according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0044] figure 2 is a schematic diagram of an additional intra-information encoding device according to at least one embodiment of the present disclosure. refer to figure 2 , the additional intra information encoding device 200 according to at least one embodiment includes an intra prediction mode selection unit 210 , a segmentation and prediction mode table lookup unit 220 , and an entropy encoding unit 230 .

[0045] The intra prediction mode selection unit 210 performs intra prediction by applying predetermined various types of splits and prediction modes for coding units. The intra prediction mode selection unit 210 selects an optimal division combination and an optimal prediction mode by calculating encoding overhead for each combination of the appli...

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Abstract

The present disclosure provides an apparatus for encoding additional intra-information includes an intra prediction mode selecting unit for performing an intra prediction by applying at least one of one or more predetermined types of partitions and one or more prediction modes with respect to a coding unit, and for selecting at least one of a partition among the one or more types of partitions and a prediction mode among the one or more prediction modes; a partitioning and prediction mode table lookup unit for looking up a table, and for generating a table hit signal if the table has at least one of a partition corresponding to the selected partition and a prediction mode corresponding to the selected prediction mode; and an entropy encoding unit for performing an encoding based on the table, if the table hit signal is received.

Description

technical field [0001] Embodiments of the present disclosure relate to devices and methods for encoding / decoding additional intra information. More specifically, embodiments of the present disclosure aim to efficiently encode / decode additional intra-frame information due to increasing image sizes and resolutions in video data compression devices and increasing various methods of partitioning encoded blocks. , and relates to an apparatus and method for encoding / decoding additional intra-information capable of adaptively reducing information when encoding / decoding additional information by effectively managing division information and prediction mode information patterns of previous blocks using a history table quantity. 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 an apparatus for compressing video data, intra-coding is performed to efficient...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/159H04N19/176H04N19/13H04N19/463H04N19/157H04N19/593
CPCH04N19/13H04N19/157H04N19/159H04N19/176H04N19/463H04N19/105H04N19/11H04N19/117
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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