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Video coding method, device, computer equipment and storage medium

A video coding and coding technology, which is applied in the field of video coding and decoding, can solve the problems of reducing the coding efficiency of intra-frame prediction, and achieve the effect of improving accuracy and data processing efficiency

Active Publication Date: 2022-02-22
TENCENT AMERICA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when CIP is enabled, a neighboring block is marked as "unavailable" if it is coded by intra block copy (IBC), thus reducing the efficiency of intra prediction coding

Method used

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  • Video coding method, device, computer equipment and storage medium
  • Video coding method, device, computer equipment and storage medium
  • Video coding method, device, computer equipment and storage medium

Examples

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Embodiment Construction

[0041] The various embodiments of the present application can be used alone or combined in any order. Also, each embodiment may be implemented by processing circuitry (eg, at least one processor or at least one integrated circuit). In one example, at least one processor executes a program stored in a non-transitory computer readable medium.

[0042] In HEVC, by using a quadtree structure called a coding tree, a coding tree unit (CTU) is partitioned into coding units (CUs) to accommodate various local characteristics. At the leaf-CU level, it is determined whether to encode the coded picture region using inter-picture (temporal) or intra-picture (spatial) prediction. Depending on the prediction unit (PU) partition type, each leaf-CU can be further partitioned into one, two or four PUs. Within a PU, the same prediction process is applied and relevant information is sent to the decoder on a PU basis. After obtaining a residual block by applying a prediction process based on th...

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PUM

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Abstract

The embodiment of the present application discloses a video coding method, device, storage medium and computer equipment. The method includes: determining whether to enable the constrained intra-frame prediction CIP mode; for the current block in the coded video code stream, determining whether the adjacent samples of the current block belong to the coding block encoded by intra-frame block copy IBC; when When it is determined that the adjacent sample belongs to a coding block that adopts IBC coding, selecting the adjacent sample as a reference sample; and, based on the reference sample, using intra-frame predictive coding to code the current block.

Description

[0001] Incorporate by reference [0002] This application claims priority to U.S. Provisional Application No. 62 / 767,472, filed November 14, 2018, entitled "Enhanced Constrained Intra Prediction," filed January 5, 2019 , Application No. 62 / 788,834, titled "Unified MPM List Generation Scheme," U.S. Provisional Application No. 62 / 805,163, filed February 13, 2019, titled "Coordinated Priority to U.S. Provisional Application No. 16 / 672,665, filed November 4, 2019, entitled "Enhanced Constrained Intra Prediction" , the entire contents of which are incorporated into this application by reference. technical field [0003] The present application relates to video coding and decoding technology, and in particular to a video coding method, device, computer equipment and storage medium. Background technique [0004] ITU-T VCEG (Q6 / 16) and ISO / IEC MPEG (JTC 1 / SC 29 / WG 11) in 2013 (version 1), 2014 (version 2), 2015 (version 3) and 2016 (version 4) released the H.265 / HEVC (High Effici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/105H04N19/11H04N19/159H04N19/52H04N19/61
CPCH04N19/105H04N19/159H04N19/176H04N19/593H04N19/11H04N19/46
Inventor 赵欣李翔赵亮刘杉
Owner TENCENT AMERICA LLC