HEVC-to-VVC video transcoding method and system based on fast recoding

HEVC-to-VVC video transcoding method and system based on fast recoding

The invention discloses a video transcoding method from HEVC (High Efficiency Video Coding) to VVC (Video Video Coding) based on fast recoding, which comprises the following steps of: reducing the depth range of VVC division search by using a coding block division depth extracted by an HEVC decoding...

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Hauptverfasser: XU QIAOYONG, WANG LING, XU SHIYANG, TENG GUOWEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator XU QIAOYONG
WANG LING
XU SHIYANG
TENG GUOWEI
description The invention discloses a video transcoding method from HEVC (High Efficiency Video Coding) to VVC (Video Video Coding) based on fast recoding, which comprises the following steps of: reducing the depth range of VVC division search by using a coding block division depth extracted by an HEVC decoding end by adopting a depth reuse algorithm, and directly executing skipping or early termination division on a coding unit of which the quadtree division depth difference is greater than a set threshold value, preliminary pruning is achieved; according to the depth range of the VVC division search, using a decision tree to judge the possibility of executing quadtree division on the remaining depth, and performing refined pruning on multi-type tree division according to a judgment result; and setting an affine prediction early termination condition on the basis of the refined pruning, and terminating the affine prediction mode with high redundancy in the VVC in advance according to the early termination condition. The
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title HEVC-to-VVC video transcoding method and system based on fast recoding
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