Hand and object tracking in three-dimensional space
US9720511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2015 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30196
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hybrid system which detects and tracks objects in three-dimensional space using a light source disposed in spaced relation to a projection surface, defining a volume of space illuminated by said light source. A light sensor responsive to illumination falling on the projection surface measures illumination levels over a predefined image plane associated with the light sensor, producing a projected image signal. A structured light source projects a structured light within the volume of space and a structured light sensor records reflected structured light from objects occupying the volume of space producing a structured light signal. A correlation processor receptive of the projected image signal and said structured light signal and adapted to compute a hybrid signal indicative of the position of an object within said space and from which other information about the object may be extracted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.