CN114731425A - 划分方法、编码器、解码器及计算机存储介质 - Google Patents
划分方法、编码器、解码器及计算机存储介质 Download PDFInfo
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Abstract
本申请实施例公开了一种划分方法、编码器、解码器及计算机存储介质,该方法包括:计算待划分点云中点的莫顿码;确定待划分点云中第i个细节层次LOD层对应的右移位数Ni;判断i是否小于或等于M‑1;当i小于或等于M‑1时,针对第i个LOD层,对待划分点云中点的莫顿码右移Ni位,并将右移后的莫顿码存储在预设缓存区;确定第i个LOD层中当前节点对应的父节点的莫顿码;根据所确定的父节点的莫顿码,在预设存储区内搜索父节点对应的邻居节点;将当前节点划分到第i个LOD层,将邻居节点划分到第i+1个LOD层;根据i+1对i进行更新,返回判断i是否小于或等于M‑1;当i大于M‑1时,将第0个LOD层至第M‑1个LOD层确定为待划分点云对应划分的LOD层。
Description
PCT国内申请,说明书已公开。
Claims (19)
- PCT国内申请,权利要求书已公开。
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CN202210856481.0A Pending CN115174922A (zh) | 2020-01-06 | 2020-01-06 | 划分方法、编码器、解码器及计算机存储介质 |
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US (1) | US20220343550A1 (zh) |
JP (1) | JP7511010B2 (zh) |
KR (1) | KR20220123655A (zh) |
CN (2) | CN114731425A (zh) |
WO (1) | WO2021138785A1 (zh) |
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WO2024155169A1 (ko) * | 2023-01-20 | 2024-07-25 | 엘지전자 주식회사 | 포인트 클라우드 데이터 송신 장치, 포인트 클라우드 데이터 송신 방법, 포인트 클라우드 데이터 수신 장치 및 포인트 클라우드 데이터 수신 방법 |
Family Cites Families (14)
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US20060041818A1 (en) * | 2004-08-23 | 2006-02-23 | Texas Instruments Inc | Method and apparatus for mitigating fading in a communication system |
US11514613B2 (en) * | 2017-03-16 | 2022-11-29 | Samsung Electronics Co., Ltd. | Point cloud and mesh compression using image/video codecs |
US10861196B2 (en) * | 2017-09-14 | 2020-12-08 | Apple Inc. | Point cloud compression |
US11113845B2 (en) * | 2017-09-18 | 2021-09-07 | Apple Inc. | Point cloud compression using non-cubic projections and masks |
KR102494923B1 (ko) | 2017-10-16 | 2023-02-06 | 소니그룹주식회사 | 정보 처리 장치 및 방법 |
US10853447B2 (en) | 2018-01-19 | 2020-12-01 | 8i Limited | Bezier volume representation of point cloud attributes |
EP3579194A1 (en) | 2018-06-08 | 2019-12-11 | My Virtual Reality Software AS | Indexation of massive point cloud data for efficient visualization |
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 |
CN111699697B (zh) * | 2019-06-14 | 2023-07-11 | 深圳市大疆创新科技有限公司 | 一种用于点云处理、解码的方法、设备及存储介质 |
KR20210107864A (ko) | 2019-06-26 | 2021-09-01 | 텐센트 아메리카 엘엘씨 | 포인트 클라우드 코딩을 위한 암시적 4진트리 또는 2진트리 지오메트리 파티션 |
US20220327742A1 (en) * | 2019-06-26 | 2022-10-13 | Lg Electronics Inc. | Point cloud data transmission device, point cloud data transmission method, point cloud data reception device and point cloud data reception method |
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 |
CN114207668A (zh) | 2019-09-30 | 2022-03-18 | Oppo广东移动通信有限公司 | 划分方法、编码器、解码器以及计算机存储介质 |
EP4092625A4 (en) * | 2020-04-08 | 2023-04-19 | LG Electronics, Inc. | POINT CLOUD DATA TRANSMISSION DEVICE, TRANSMISSION METHOD, PROCESSING DEVICE AND PROCESSING METHOD |
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- 2020-01-06 KR KR1020227023052A patent/KR20220123655A/ko unknown
- 2020-01-06 JP JP2022540811A patent/JP7511010B2/ja active Active
- 2020-01-06 WO PCT/CN2020/070554 patent/WO2021138785A1/zh active Application Filing
- 2020-01-06 CN CN202080080592.6A patent/CN114731425A/zh active Pending
- 2020-01-06 CN CN202210856481.0A patent/CN115174922A/zh active Pending
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2022
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KR20220123655A (ko) | 2022-09-08 |
JP7511010B2 (ja) | 2024-07-04 |
US20220343550A1 (en) | 2022-10-27 |
CN115174922A (zh) | 2022-10-11 |
WO2021138785A1 (zh) | 2021-07-15 |
JP2023516246A (ja) | 2023-04-19 |
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