BR112023005758A2 - Modo angular e quantização em árvore em compressão de nuvem de pontos geométrica - Google Patents

Modo angular e quantização em árvore em compressão de nuvem de pontos geométrica

Info

Publication number
BR112023005758A2
BR112023005758A2 BR112023005758A BR112023005758A BR112023005758A2 BR 112023005758 A2 BR112023005758 A2 BR 112023005758A2 BR 112023005758 A BR112023005758 A BR 112023005758A BR 112023005758 A BR112023005758 A BR 112023005758A BR 112023005758 A2 BR112023005758 A2 BR 112023005758A2
Authority
BR
Brazil
Prior art keywords
angular mode
node
point cloud
tree quantization
scaled value
Prior art date
Application number
BR112023005758A
Other languages
English (en)
Inventor
Krishnan Ramasubramonian Adarsh
Ray Bappaditya
Van Der Auwera Geert
Karczewicz Marta
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112023005758A2 publication Critical patent/BR112023005758A2/pt

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Classifications

    • 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]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • 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
    • H04N19/124—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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10028—Range image; Depth image; 3D point clouds

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

MODO ANGULAR E QUANTIZAÇÃO EM ÁRVORE EM COMPRESSÃO DE NUVEM DE PONTOS GEOMÉTRICA. Um dispositivo para decodificar um fluxo de bits que inclui dados de nuvem de pontos pode ser configurado para determinar, com base na sintaxe sinalizada no fluxo de bits, que a quantização em árvore está habilitada para um nó; determinar para o nó, com base na sintaxe sinalizada no fluxo de bits, que um modo angular é ativado para o nó; em resposta à quantização em árvore sendo habilitada para o nó, determinar para o nó um valor escalado representando uma posição de coordenada relativa a uma posição de origem; dimensionar o valor escalado sem recorte para determinar um valor dimensionado representando a posição de coordenada em relação à posição de origem; e determinar um contexto para a decodificação de contexto de um elemento de sintaxe de posição plana para o modo angular com base no valor escalado que representa a posição coordenada em relação à posição de origem.
BR112023005758A 2020-10-07 2021-10-07 Modo angular e quantização em árvore em compressão de nuvem de pontos geométrica BR112023005758A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US202063088938P 2020-10-07 2020-10-07
US202063090629P 2020-10-12 2020-10-12
US202063091821P 2020-10-14 2020-10-14
US17/495,621 US20220108488A1 (en) 2020-10-07 2021-10-06 Angular mode and in-tree quantization in geometry point cloud compression
PCT/US2021/054003 WO2022076708A1 (en) 2020-10-07 2021-10-07 Angular mode and in-tree quantization in geometry point cloud compression

Publications (1)

Publication Number Publication Date
BR112023005758A2 true BR112023005758A2 (pt) 2023-05-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023005758A BR112023005758A2 (pt) 2020-10-07 2021-10-07 Modo angular e quantização em árvore em compressão de nuvem de pontos geométrica

Country Status (8)

Country Link
US (1) US20220108488A1 (pt)
EP (1) EP4226629A1 (pt)
JP (1) JP2023545989A (pt)
KR (1) KR20230081708A (pt)
CN (1) CN116325733A (pt)
BR (1) BR112023005758A2 (pt)
TW (1) TW202220448A (pt)
WO (1) WO2022076708A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11910021B2 (en) * 2021-10-04 2024-02-20 Qualcomm Incorporated Planar and direct mode signaling in G-PCC

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JP2006295299A (ja) * 2005-04-06 2006-10-26 Megachips Lsi Solutions Inc デジタル絞りシステム
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WO2021132595A1 (ja) * 2019-12-26 2021-07-01 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
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Also Published As

Publication number Publication date
TW202220448A (zh) 2022-05-16
KR20230081708A (ko) 2023-06-07
WO2022076708A1 (en) 2022-04-14
JP2023545989A (ja) 2023-11-01
US20220108488A1 (en) 2022-04-07
CN116325733A (zh) 2023-06-23
EP4226629A1 (en) 2023-08-16

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