CN114868389A - 一种帧内预测方法、编码器、解码器及存储介质 - Google Patents

一种帧内预测方法、编码器、解码器及存储介质 Download PDF

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Publication number
CN114868389A
CN114868389A CN202080090168.XA CN202080090168A CN114868389A CN 114868389 A CN114868389 A CN 114868389A CN 202080090168 A CN202080090168 A CN 202080090168A CN 114868389 A CN114868389 A CN 114868389A
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current
node
intra
determining
neighbor
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CN202080090168.XA
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万帅
杨付正
魏磊
王哲诚
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/1883—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

本申请实施例提供了一种帧内预测方法、编码器、解码器及存储介质，包括：确定待编码点云的三维莫顿码；在进行八叉树划分时，获取当前节点的坐标信息，以及当前节点对应的当前层级；基于当前层级，确定当前节点对应的父节点的邻居节点的当前数量，进而基于三维莫顿码和当前节点的坐标信息，确定出参与帧内预测的当前数量的当前邻居节点；其中，当前层级与当前数量成正相关；基于当前节点的坐标信息和当前邻居节点，对当前节点进行帧内预测，确定帧内预测结果。

Description

PCT国内申请，说明书已公开。

Claims (19)

  1. PCT国内申请，权利要求书已公开。
CN202080090168.XA 2020-01-06 2020-01-06 一种帧内预测方法、编码器、解码器及存储介质 Pending CN114868389A (zh)

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PCT/CN2020/070556 WO2021138787A1 (zh) 2020-01-06 2020-01-06 一种帧内预测方法、编码器、解码器及存储介质

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CN114868389A true CN114868389A (zh) 2022-08-05

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US (1) US20220337884A1 (zh)
EP (1) EP4087240A4 (zh)
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WO (1) WO2021138787A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN113676738B (zh) * 2021-08-19 2024-03-29 上海交通大学 一种三维点云的几何编解码方法及装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170214943A1 (en) * 2016-01-22 2017-07-27 Mitsubishi Electric Research Laboratories, Inc. Point Cloud Compression using Prediction and Shape-Adaptive Transforms
EP3429212A1 (en) * 2017-07-13 2019-01-16 Thomson Licensing A method and apparatus for encoding/decoding the geometry of a point cloud representing a 3d object
US10909725B2 (en) * 2017-09-18 2021-02-02 Apple Inc. Point cloud compression
WO2019082837A1 (ja) * 2017-10-24 2019-05-02 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 三次元データ符号化方法、三次元データ復号方法、三次元データ符号化装置、及び三次元データ復号装置
CA3104630A1 (en) * 2018-06-27 2020-01-02 Panasonic Intellectual Property Corporation Of America Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device
US11272158B2 (en) * 2019-03-01 2022-03-08 Tencent America LLC Method and apparatus for point cloud compression
CN109889840B (zh) * 2019-03-20 2022-11-22 北京大学深圳研究生院 点云编码和解码的方法、编码设备和解码设备
EP3734977A1 (en) * 2019-04-30 2020-11-04 Nokia Technologies Oy An apparatus, a method and a computer program for volumetric video
US12010341B2 (en) * 2019-06-21 2024-06-11 Lg Electronics Inc. Device and method for processing point cloud data
CN110418135B (zh) * 2019-08-05 2022-05-27 北京大学深圳研究生院 一种基于邻居的权重优化的点云帧内预测方法及设备
US20220343548A1 (en) * 2019-09-11 2022-10-27 Lg Electronics Inc. Point cloud data transmission device, point cloud data transmission method, point cloud data reception device, and point cloud data reception method
WO2021062732A1 (zh) * 2019-09-30 2021-04-08 Oppo广东移动通信有限公司 变换方法、逆变换方法、编码器、解码器及存储介质

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US20220337884A1 (en) 2022-10-20
EP4087240A4 (en) 2023-01-11
WO2021138787A1 (zh) 2021-07-15

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