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Layered video encoding and decoding method, encoding device and decoding device

A technology of video coding and coding device, applied in the field of communication, can solve the problems of prolonging coding and decoding time, increasing coding and decoding complexity, etc.

Active Publication Date: 2014-10-15
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, GRP also greatly increases the complexity of encoding and decoding, prolonging the time of encoding and decoding

Method used

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  • Layered video encoding and decoding method, encoding device and decoding device
  • Layered video encoding and decoding method, encoding device and decoding device
  • Layered video encoding and decoding method, encoding device and decoding device

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Embodiment Construction

[0108] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0109] In order to understand the present invention more clearly, the following will combine figure 1 The GRP algorithm mentioned in the embodiment of the present invention will be described in detail.

[0110] figure 1 A schematic diagram of the GRP algorithm is shown. Among them, CurPic is the current frame image, RefPic is the reference frame image; Be is the image block for which the enhancement layer is subjected to inter-frame prediction or motion ...

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Abstract

The embodiment of the invention provides a layered video encoding and decoding method, an encoding device and a decoding device. The method comprises steps: a relative image block of an enhancement layer image block is determined, wherein the relative image block comprises a base layer image block corresponding to the enhancement layer image block and an encoded image block near the enhancement layer image block; residual information corresponding to the relative image block is acquired; according to the residual information corresponding to the relative image block, whether generalized residual prediction algorithm is adopted when interframe prediction is carried out on the enhancement layer image block is determined, wherein the residual information corresponding to the relative image block is used for indicating whether the relative image block has residual or indicating the residual degree of the relative image block. According to the layered video encoding and decoding method, the encoding device and the decoding device, complexity of video encoding and decoding and the time of encoding and decoding can be reduced.

Description

technical field [0001] The present invention relates to the communication field, and more particularly, to a method, encoding device and decoding device for layered video encoding and decoding. Background technique [0002] In recent years, with the popularization and development of Internet and communication technology, digital media technology has been widely used in many fields. At the same time, the emergence of high-definition and ultra-high-definition video has put forward higher requirements for video compression technology. The High Efficiency Video Coding (HEVC) video standard was formulated to meet this demand. [0003] Scalable High-efficiency Video Coding (SHVC) is an extension of the HEVC video coding standard on scalable video coding. In SHVC, the video stream contains multiple layers of video data. The bottom layer of video data (Layer ID=0) is called the base layer (Base Layer, BL), and the data layer above the base layer (Layer ID>0) is called the enha...

Claims

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Application Information

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IPC IPC(8): H04N19/30H04N19/61
Inventor 魏湘辉昝劲文
Owner HUAWEI TECH CO LTD
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