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Inter-layer video coding method using brightness compensation and device thereof, and video decoding method and device thereof

A technology of brightness compensation and video decoding, applied in digital video signal modification, climate sustainability, electrical components, etc., to achieve the effect of reducing complexity

Inactive Publication Date: 2019-04-26
SAMSUNG ELECTRONICS CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

Specifically, since an image pixel value in a spatial domain is represented according to a prediction error of inter-prediction or intra-prediction via a video codec, a large amount of data may be transformed into 0 when frequency transformation is performed on the prediction error

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  • Inter-layer video coding method using brightness compensation and device thereof, and video decoding method and device thereof
  • Inter-layer video coding method using brightness compensation and device thereof, and video decoding method and device thereof
  • Inter-layer video coding method using brightness compensation and device thereof, and video decoding method and device thereof

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[0054] In the following, refer to Figure 1a to Figure 7 An inter-layer video encoding technique and an inter-layer video decoding technique based on whether luminance compensation is performed according to various embodiments are suggested. In addition, refer to Figure 8 to Figure 20 A video encoding technique and a video decoding technique based on a coding unit of a tree structure according to various embodiments, which are applicable to an inter-layer video encoding technique and a decoding technique, are suggested. In addition, refer to Figure 21 to Figure 27 Various embodiments to which a video encoding method and a video decoding method are applicable are suggested.

[0055] Hereinafter, "image" may mean a still image or a moving image of a video, or the video itself.

[0056] Hereinafter, "sample" means data that is assigned to a sampling position of an image and is to be processed. For example, pixels in an image in the spatial domain may be samples.

[0057] F...

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Abstract

An inter-layer video decoding method is provided. The inter-layer video decoding method includes: obtaining luminance compensation information indicating whether the current block of the second layer performs luminance compensation; based on whether the luminance compensation information indicates that luminance compensation is performed and whether the candidate of the current block of the second layer performs time-direction inter prediction to determine whether the candidate of the current block of the second layer can be used as a merging candidate; generate a merging candidate list including at least one merging candidate based on the determined result; determine by using motion information of one merging candidate in the at least one merging candidate Motion information of the current block in the second layer.

Description

technical field [0001] The present invention relates to an inter-layer video coding method and decoding method, and more specifically, to a method for generating a merging candidate list of a current block based on whether brightness compensation is performed on the current block. Background technique [0002] As hardware for reproducing and storing high-resolution or high-quality video content is being developed and provided, demands for video codecs for efficiently encoding or decoding high-resolution or high-quality video content are increasing. According to a conventional video codec, a video is encoded according to a limited encoding method based on a coding unit having a predetermined size. [0003] Image data in the spatial domain is transformed into coefficients in the frequency domain via frequency transform. According to a video codec, an image is divided into blocks having a predetermined size, discrete cosine transform (DCT) is performed on each block, and frequ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/503H04N19/186
CPCH04N19/30H04N19/52H04N19/593H04N19/597H04N19/70H04N19/186H04N19/503H04N19/51Y02D10/00H04N19/176H04N19/513
Inventor 朴慜祐李振荣
Owner SAMSUNG ELECTRONICS CO LTD
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