CN115606188A - 一种点云编解码方法、编码器、解码器及存储介质 - Google Patents

一种点云编解码方法、编码器、解码器及存储介质 Download PDF

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CN115606188A
CN115606188A CN202080100932.7A CN202080100932A CN115606188A CN 115606188 A CN115606188 A CN 115606188A CN 202080100932 A CN202080100932 A CN 202080100932A CN 115606188 A CN115606188 A CN 115606188A
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杨付正
孙泽星
万帅
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Publication of CN115606188A publication Critical patent/CN115606188A/zh
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    • 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
    • G06T9/005—Statistical coding, e.g. Huffman, run length 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
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/17—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 being an image region, e.g. an object
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
    • G06T2219/012—Dimensioning, tolerancing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

本申请实施例提供了一种点云编解码方法、编码器、解码器及存储介质，包括：确定待编码/解码点云的包围盒；基于莫顿码顺序对待编码/解码点云的包围盒进行八叉树划分时，获取当前节点的坐标信息；基于坐标信息确定第一邻居模式；基于第一邻居模式，确定当前节点的熵编码参数/熵解码参数；基于熵编码参数/熵解码参数对当前节点的占位信息进行熵编码/熵解码。这样，利用第一邻居模式，即当前节点被占用邻居节点的位置分布，对当前节点中子节点的熵编码参数/熵解码参数进行预测，利用预测得到的熵编码参数/熵解码参数对子节点的占位信息进行熵编码/熵解码参数，很好地利用相邻节点之间的几何空间相关性进行编解码，来提升几何编解码性能。

Description

PCT国内申请，说明书已公开。

Claims (37)

  1. PCT国内申请，权利要求书已公开。
CN202080100932.7A 2020-05-19 2020-05-19 一种点云编解码方法、编码器、解码器及存储介质 Pending CN115606188A (zh)

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EP (1) EP4149114A4 (zh)
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Publication number Priority date Publication date Assignee Title
CN117893412A (zh) * 2024-03-15 2024-04-16 北京理工大学 一种点云数据滤除方法、装置、设备及存储介质

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN116233435A (zh) * 2021-12-03 2023-06-06 维沃移动通信有限公司 点云编码方法、解码方法、装置及电子设备
WO2023131126A1 (en) * 2022-01-04 2023-07-13 Beijing Bytedance Network Technology Co., Ltd. Method, apparatus, and medium for point cloud coding
WO2023173237A1 (zh) * 2022-03-12 2023-09-21 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
WO2023197337A1 (zh) * 2022-04-16 2023-10-19 Oppo广东移动通信有限公司 索引确定方法、装置、解码器以及编码器
CN118175319A (zh) * 2022-12-09 2024-06-11 维沃移动通信有限公司 点云编码方法、点云解码方法及相关设备
WO2024148488A1 (zh) * 2023-01-09 2024-07-18 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

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FI3514968T3 (fi) * 2018-01-18 2023-05-25 Blackberry Ltd Menetelmiä ja laitteita pistepilvien entropiakoodausta varten
EP3514969B1 (en) * 2018-01-18 2021-08-04 BlackBerry Limited Methods and devices using direct coding in point cloud compression
CN109345619B (zh) * 2018-08-10 2023-05-16 华北电力大学（保定） 基于类八叉树编码的海量点云空间管理方法
WO2020075862A1 (ja) * 2018-10-12 2020-04-16 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117893412A (zh) * 2024-03-15 2024-04-16 北京理工大学 一种点云数据滤除方法、装置、设备及存储介质
CN117893412B (zh) * 2024-03-15 2024-06-11 北京理工大学 一种点云数据滤除方法、装置、设备及存储介质

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EP4149114A1 (en) 2023-03-15
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EP4149114A4 (en) 2023-04-12

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