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

A video decoding and encoding technology, applied in digital video signal modification, image communication, electrical components, etc.

Pending Publication Date: 2021-03-02
TENCENT AMERICA LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, users of some consumer streaming apps can tolerate higher distortion than users of TV apps

Method used

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

Examples

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Embodiment Construction

[0043] refer to Figure 1A , the lower right depicts a subset of the nine prediction directions known from among the 33 (corresponding to 33 angle modes out of 35 intra modes) possible prediction directions for H.265. The point (101) where the arrows converge represents the sample being predicted. Arrows indicate the direction in which samples are being predicted. For example, the arrow (102) indicates that the sample (101) is predicted based on at least one sample at the upper right at an angle of 45 degrees to the horizontal. Similarly, the arrow (103) indicates that the sample (101) is predicted based on at least one sample at the bottom left at an angle of 22.5 degrees to the horizontal.

[0044] still refer to Figure 1A , a square block (104) of 4x4 samples (indicated by a bold dashed line) is shown in the upper left. A square block (104) includes 16 samples, each labeled with "S" and its position in the Y dimension (eg, row index) and its position in the X dimension (...

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Abstract

The embodiment of the invention provides a video encoding and decoding method and device, computer equipment and a nonvolatile computer readable storage medium. The method comprises the steps of decoding the prediction information of a current block in a coding unit tree from an encoded bitstream, wherein the prediction information indicates at least one allowed block partition structure for the current block; determining a sub-block transform (SBT) mode of the current block based on the prediction information, the prediction information indicating that an SBT is used for the current block, wherein the partition of the current block in the SBT mode is different from the partition of the current block in the at least one allowed block partition structure; and reconstructing the current block based on the SBT mode.

Description

[0001] Incorporate by reference [0002] This application claims priority to U.S. Provisional Application No. 62 / 891,839, INTERACTION BETWEEN CU PARTITIONS AND SUB-BLOCKTRANSFORM, filed August 26, 2019, and the 2020 Priority to US Application No. 16 / 999,753, "METHOD AND APPARATUS FOR VIDEO CODING," filed August 21, the entire contents of which are incorporated herein by reference in their entirety. technical field [0003] This application relates to video codec technology. Background technique [0004] The background description provided herein is intended to present the context of the application as a whole. To the extent that the work of the presently named inventors is described in the Background section and in the various aspects of this specification, it is not an admission that it was prior art as of the filing of this application and has never been admitted either expressly or by implication It is the prior art of this application. [0005] Video encoding and deco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/96H04N19/60H04N19/44H04N19/42
CPCH04N19/176H04N19/96H04N19/60H04N19/44H04N19/42H04N19/119H04N19/12
Inventor 李翔赵欣赵亮刘杉
Owner TENCENT AMERICA LLC
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