Caching and updating of dense 3D reconstruction data
US11321924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Jul 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2219/004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to efficiently update and manage outputs of real time or offline 3D reconstruction and scanning in a mobile device having limited resource and connection to the Internet is provided. The method makes available to a wide variety of mobile XR applications fresh, accurate and comprehensive 3D reconstruction data, in either single user applications or multi-user applications sharing and updating the same 3D reconstruction data. The method includes a block-based 3D data representation that allows local update and maintains neighbor consistency at the same time, and a multi-layer caching mechanism that retrieves, prefetches, and stores 3D data efficiently for XR applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.