Strobing of active marker groups in performance capture
US11403883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2021 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Jan 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/19
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present description relates to light patterns used in a live action scene of a visual production to encode information associated with objects in the scene, such as movement and position of the objects. A data capture system is enabled to differentiate between various groups of active markers attached to the objects in the scene. The groups of active markers emit particular wavelengths in strobing patterns predefined for the various groups. In some implementations, the groups are instructed to emit its assigned signature light pattern through a signal controller transmitting an initial key signature predefined for the group, followed by pattern signals to a control unit. The data representing the pattern is captured in illuminated and blank frames. Frames showing the light pattern are analyzed to extract information about the groups of active markers, such as distinguishing the groups and identifying the objects to which they are attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.