Compression of animated geometry using a hierarchical level of detail coder
US6614428B1 · kind B1 · utility
63Cited by
24References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A space-time level of detail coder converts a time dependent geometry stream into a hierarchical structure, including levels of detail in the space and time dimensions, and expansion records. The expansion records specify how to reconstruct a mesh from deltas representing differences between levels of detail. For low bandwidth transmission, only selected expansion records need be sent depending on the appropriate level of detail of the object being represented for the current time sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.