Time of flight depth camera
US9578311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jul 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/017
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for operating a time of flight (TOF) depth camera is provided. The method includes, using an image processing module, interpolating an updated timing delay calibration for each of a plurality of pixel sensors based at least on an updated set of modulation frequency and duty cycle calibration combinations received by the image processing module, the plurality of pixel sensors coupled to a timing clock, and receiving light generated by a light source and reflected in a 3-dimensional environment, the updated set of modulation frequency and duty cycle calibration combinations replacing the corresponding factory-preloaded timing delay calibrations. The method further includes applying the updated timing delay calibrations to pixel data corresponding to each of the plurality of the pixel sensors to generate a depth map of the 3-dimensional environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.