CN113875254A - 变换方法、逆变换方法、编码器、解码器及存储介质 - Google Patents

变换方法、逆变换方法、编码器、解码器及存储介质 Download PDF

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Publication number
CN113875254A
CN113875254A CN201980096775.4A CN201980096775A CN113875254A CN 113875254 A CN113875254 A CN 113875254A CN 201980096775 A CN201980096775 A CN 201980096775A CN 113875254 A CN113875254 A CN 113875254A
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China
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point
transformation
normal vector
coded
encoded
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CN201980096775.4A
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English (en)
Inventor
张伟
杨付正
万帅
马彦卓
霍俊彦
张苏军
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202210083335.9A priority Critical patent/CN114363634A/zh
Publication of CN113875254A publication Critical patent/CN113875254A/zh
Pending legal-status Critical Current

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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/169—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
    • H04N19/176—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 the region being a block, e.g. a macroblock
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Analysis (AREA)

Abstract

本申请实施例提供的一种变换方法、编码器、解码器及计算机可读存储介质，包括：确定待编码点云中的待编码点的法向量；基于所述待编码点的法向量，统计法向量各个坐标分量的总和大小；基于所述法向量各个坐标分量的总和大小，确定变换顺序。

Description

PCT国内申请，说明书已公开。

Claims (32)

  1. PCT国内申请，权利要求书已公开。
CN201980096775.4A 2019-06-30 2019-06-30 变换方法、逆变换方法、编码器、解码器及存储介质 Pending CN113875254A (zh)

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PCT/CN2019/094105 WO2021000205A1 (zh) 2019-06-30 2019-06-30 变换方法、逆变换方法、编码器、解码器及存储介质

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US (2) US11412259B2 (zh)
EP (1) EP3993424A4 (zh)
JP (1) JP7330306B2 (zh)
KR (1) KR20220027882A (zh)
CN (2) CN114363634A (zh)
WO (1) WO2021000205A1 (zh)

Cited By (1)

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WO2023179277A1 (en) * 2022-03-25 2023-09-28 Beijing Xiaomi Mobile Software Co., Ltd. Encoding/decoding positions of points of a point cloud encompassed in a cuboid volume

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KR20220029595A (ko) 2019-07-03 2022-03-08 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 포인트 클라우드 인코딩과 디코딩 방법, 인코더, 디코더 및 컴퓨터 저장 매체
US20220377327A1 (en) * 2019-07-03 2022-11-24 Lg Electronics Inc. Point cloud data transmission device, point cloud data transmission method, point cloud data reception device, and point cloud data reception method
CN114073086A (zh) * 2019-07-04 2022-02-18 Lg 电子株式会社 点云数据处理设备和方法
EP4040793A4 (en) * 2019-09-30 2023-01-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. TRANSFORMATION METHOD, INVERSE TRANSFORMATION METHOD, ENCODER, DECODER AND STORAGE MEDIUM
CN114762334B (zh) * 2020-01-07 2024-06-18 Lg电子株式会社 点云数据发送装置、点云数据发送方法、点云数据接收装置和点云数据接收方法
US11741637B2 (en) * 2020-02-10 2023-08-29 Tencent America LLC Node-based geometry and attribute coding for a point cloud
US20230206509A1 (en) * 2021-12-27 2023-06-29 Advanced Micro Devices, Inc. Systems and method for generating morton code
WO2023191605A1 (ko) * 2022-04-01 2023-10-05 엘지전자 주식회사 포인트 클라우드 데이터 송신 장치, 포인트 클라우드 데이터 송신 방법, 포인트 클라우드 데이터 수신 장치 및 포인트 클라우드 데이터 수신 방법
WO2024043659A1 (ko) * 2022-08-22 2024-02-29 엘지전자 주식회사 포인트 클라우드 데이터 송신 장치, 포인트 클라우드 데이터 송신 방법, 포인트 클라우드 데이터 수신 장치 및 포인트 클라우드 데이터 수신 방법
CN116503409B (zh) * 2023-06-28 2023-09-12 矽瞻科技(成都)有限公司 一种焊缝缺陷3d点云检测方法、设备和介质

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US20220329858A1 (en) 2022-10-13
EP3993424A4 (en) 2023-03-01
US20220124371A1 (en) 2022-04-21
CN114363634A (zh) 2022-04-15
US11843803B2 (en) 2023-12-12
JP2022540569A (ja) 2022-09-16
EP3993424A1 (en) 2022-05-04
JP7330306B2 (ja) 2023-08-21
WO2021000205A1 (zh) 2021-01-07
US11412259B2 (en) 2022-08-09

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