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Video encoding and decoding method, device, computer equipment and computer-readable storage medium

A video decoding and encoding technology, applied in the field of video encoding, can solve problems such as low efficiency

Active Publication Date: 2022-03-25
TENCENT AMERICA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the region segmentation scheme proposed in JVET-K0139 is limited, which leads to low efficiency in practical applications

Method used

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  • Video encoding and decoding method, device, computer equipment and computer-readable storage medium
  • Video encoding and decoding method, device, computer equipment and computer-readable storage medium
  • Video encoding and decoding method, device, computer equipment and computer-readable storage medium

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Embodiment Construction

[0039]In some video compression techniques, the MV for a region of sampled data may be predicted from other MVs, eg, relative to another region of sampled data that is spatially adjacent to the region under reconstruction, and in decoding order Those MVs that precede this MV. Doing so greatly reduces the amount of data required to encode the MV, thereby eliminating redundancy and increasing compression. For example, MV prediction can work efficiently because when encoding an input video signal derived from a camera (called natural video), there is a statistical likelihood that a larger area than a single MV is applicable to in similar , and thus, in some cases, can be predicted using similar motion vectors derived from the MVs of adjacent regions. This results in the MV found for a given region being similar or identical to the MV predicted from surrounding MVs, and in turn, after entropy encoding, can be represented with fewer bits than would be used when encoding it directl...

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Abstract

Embodiments of the present application provide a video encoding and decoding method, device, computer equipment, and computer-readable storage medium, wherein the method includes: decoding encoding information associated with a block of an image in an encoding video bitstream, the encoding The information indicates the position of the sub-region in the block, and the area of ​​the sub-region is 1 / 4 of the area of ​​the block; the residual data of the first sample is used to reconstruct the first sample of the block located in the sub-region; Using the residual data, the second sample of the block lying outside the subregion is reconstructed.

Description

[0001] Related documents [0002] This disclosure claims priority to US Provisional Application 62 / 696530, filed July 11, 2018, and US Application 16 / 218,233, filed December 12, 2018, the entire contents of which are incorporated herein by reference. technical field [0003] The embodiments of the present application mainly relate to video coding technologies, and in particular, to a video coding and decoding method, apparatus, computer device, and computer-readable storage medium. Background technique [0004] The background description provided herein is for the purpose of presenting the context of the present application. The work of the named inventors, the work described in this Background section, and what is within the scope of the various embodiments of this specification, may not be considered prior art at the time of filing, and neither is Application prior art. [0005] Video encoding and decoding may be performed using inter-picture prediction with motion compe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/184H04N19/132H04N19/503H04N19/176H04N19/174H04N19/82H04N19/103H04N19/186H04N19/61H04N19/147H04N19/105
CPCH04N19/184H04N19/132H04N19/503H04N19/176H04N19/174H04N19/82H04N19/103H04N19/186H04N19/61H04N19/147H04N19/105H04N19/119H04N19/159
Inventor 李翔赵欣刘杉徐萌
Owner TENCENT AMERICA LLC