CN114402532A - 占位信息的预测方法、编码器、解码器、及存储介质 - Google Patents

占位信息的预测方法、编码器、解码器、及存储介质 Download PDF

Info

Publication number
CN114402532A
CN114402532A CN201980100409.1A CN201980100409A CN114402532A CN 114402532 A CN114402532 A CN 114402532A CN 201980100409 A CN201980100409 A CN 201980100409A CN 114402532 A CN114402532 A CN 114402532A
Authority
CN
China
Prior art keywords
node
weight
occupancy
predicted
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201980100409.1A
Other languages
English (en)
Inventor
张伟
杨付正
万帅
马彦卓
霍俊彦
王哲诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of CN114402532A publication Critical patent/CN114402532A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6011—Encoder aspects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3068—Precoding preceding compression, e.g. Burrows-Wheeler transformation
    • H03M7/3071—Prediction
    • H03M7/3075—Space
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/001—Model-based coding, e.g. wire frame
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/004—Predictors, e.g. intraframe, interframe coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/40—Tree coding, e.g. quadtree, octree
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3068—Precoding preceding compression, e.g. Burrows-Wheeler transformation
    • H03M7/3079—Context modeling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6005—Decoder aspects
    • 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
    • H04N19/90—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

本申请实施例提供了一种占位信息的预测方法、编码器、解码器及存储介质，编码器基于八叉树进行几何信息的编码时，确定待预测节点的相邻节点所对应的占位信息，相邻节点的编码状态，相邻节点中的、已编码相邻节点的已占位子节点的个数，以及待预测节点的子节点与相邻节点之间的距离参数；根据距离参数和已占位子节点的个数，获取预设权重集合；按照预设权重集合、编码状态以及占位信息，确定子节点对应的占位权重；根据占位权重和预设占位阈值集合，对子节点进行预测处理，获得子节点对应的节点类型；基于节点类型，输出待预测节点的预测占位信息。

Description

PCT国内申请，说明书已公开。

Claims (30)

  1. PCT国内申请，权利要求书已公开。
CN201980100409.1A 2019-09-30 2019-09-30 占位信息的预测方法、编码器、解码器、及存储介质 Pending CN114402532A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/109661 WO2021062743A1 (zh) 2019-09-30 2019-09-30 占位信息的预测方法、编码器、解码器、及存储介质

Publications (1)

Publication Number Publication Date
CN114402532A true CN114402532A (zh) 2022-04-26

Family

ID=75336671

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980100409.1A Pending CN114402532A (zh) 2019-09-30 2019-09-30 占位信息的预测方法、编码器、解码器、及存储介质

Country Status (4)

Country Link
US (1) US11742878B2 (zh)
EP (1) EP4040683A4 (zh)
CN (1) CN114402532A (zh)
WO (1) WO2021062743A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024065269A1 (zh) * 2022-09-28 2024-04-04 Oppo广东移动通信有限公司 点云编解码方法、装置、设备及存储介质
WO2024149141A1 (zh) * 2023-01-11 2024-07-18 维沃移动通信有限公司 点云编码方法、点云解码方法、装置及通信设备
WO2024182978A1 (zh) * 2023-03-06 2024-09-12 Oppo广东移动通信有限公司 编解码方法、码流、编码器、解码器以及存储介质

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114930823A (zh) 2020-01-06 2022-08-19 Oppo广东移动通信有限公司 帧内预测方法、装置、编码器、解码器、及存储介质
CN113259678A (zh) * 2020-02-10 2021-08-13 腾讯美国有限责任公司 对点云信息进行编解码的方法和装置
KR20220157490A (ko) * 2020-03-24 2022-11-29 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 인트라 예측 방법, 장치, 인코더, 디코더 및 저장 매체
CN116233388B (zh) * 2021-12-03 2024-08-27 维沃移动通信有限公司 点云编、解码处理方法、装置、编码设备及解码设备
CN118743221A (zh) * 2022-01-04 2024-10-01 抖音视界有限公司 用于点云编解码的方法、装置及介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013067674A1 (en) * 2011-11-07 2013-05-16 Thomson Licensing Predictive position encoding
US10223810B2 (en) * 2016-05-28 2019-03-05 Microsoft Technology Licensing, Llc Region-adaptive hierarchical transform and entropy coding for point cloud compression, and corresponding decompression
CN107403456B (zh) * 2017-07-28 2019-06-18 北京大学深圳研究生院 一种基于kd树和优化图变换的点云属性压缩方法
KR20200069307A (ko) * 2017-10-24 2020-06-16 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 삼차원 데이터 부호화 방법, 삼차원 데이터 복호 방법, 삼차원 데이터 부호화 장치 및 삼차원 데이터 복호 장치
US10699444B2 (en) * 2017-11-22 2020-06-30 Apple Inc Point cloud occupancy map compression
CN108335335B (zh) * 2018-02-11 2019-06-21 北京大学深圳研究生院 一种基于增强图变换的点云属性压缩方法
CN108632621B (zh) * 2018-05-09 2019-07-02 北京大学深圳研究生院 一种基于层次划分的点云属性压缩方法
JP7322020B2 (ja) * 2018-06-27 2023-08-07 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
EP3595180B1 (en) * 2018-07-10 2021-12-08 BlackBerry Limited Methods and devices for neighbourhood-based occupancy prediction in point cloud compression
CN109257604B (zh) 2018-11-20 2020-11-27 山东大学 一种基于tmc3点云编码器的颜色属性编码方法
CN110097605B (zh) * 2019-05-05 2022-05-27 山东大学 一种基于支持向量机的点云压缩编码器关键参数优化方法
WO2020256308A1 (ko) * 2019-06-21 2020-12-24 엘지전자 주식회사 포인트 클라우드 데이터 처리 장치 및 방법

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024065269A1 (zh) * 2022-09-28 2024-04-04 Oppo广东移动通信有限公司 点云编解码方法、装置、设备及存储介质
WO2024149141A1 (zh) * 2023-01-11 2024-07-18 维沃移动通信有限公司 点云编码方法、点云解码方法、装置及通信设备
WO2024182978A1 (zh) * 2023-03-06 2024-09-12 Oppo广东移动通信有限公司 编解码方法、码流、编码器、解码器以及存储介质

Also Published As

Publication number Publication date
US20220247427A1 (en) 2022-08-04
US11742878B2 (en) 2023-08-29
EP4040683A1 (en) 2022-08-10
EP4040683A4 (en) 2022-11-02
WO2021062743A1 (zh) 2021-04-08

Similar Documents

Publication Publication Date Title
CN114402532A (zh) 占位信息的预测方法、编码器、解码器、及存储介质
EP3420726B1 (en) Shape-adaptive model-based codec for lossy and lossless compression of images
US11936909B2 (en) Prediction method, encoder, decoder, and computer storage medium
WO2022120594A1 (zh) 点云编解码方法、编码器、解码器及计算机存储介质
US20230237705A1 (en) Methods for level partition of point cloud, and decoder
US11936850B2 (en) Methods for intra prediction, and encoder
CN116112688A (zh) 点云编码方法和解码方法、编码器、解码器、及存储介质
US20220337884A1 (en) Intra prediction method and decoder
US20240171772A1 (en) Method and device for intra prediction
CN114402621A (zh) 变换方法、逆变换方法、编码器、解码器及存储介质
WO2021062771A1 (zh) 颜色分量预测方法、编码器、解码器及计算机存储介质
CN113453009B (zh) 基于拟合平面几何误差最小的点云空间可伸缩编码几何重构方法
Mao et al. Learning to predict on octree for scalable point cloud geometry coding
WO2022233004A1 (zh) 点云编解码方法、编码器、解码器及计算机存储介质
CN116097650A (zh) 一种点云数据的层次划分方法、编码器及存储介质

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination