Automated viewpoint selection for 3D scenes
US6556206B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A set of viewpoints for a given scene of 3D objects is defined by a system that restricts the degrees of freedom available to a user, through use of a bounding surface (a viewpoint sphere), and provides varying degrees of automation ranging from predefined viewpoints to generated tour paths, to interactive selection using free navigation. The system calculates the scene sphere, which is the minimum bounding sphere that contains the set of objects in the scene and then finds the viewpoint sphere, which is done by calculating the viewpoint sphere radius. The user then chooses the mode of viewpoint selection as either completely automated, semi-automated, or free navigation. The output is a set of viewpoints for the given scene of objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.