Combining light-field data with active depth data for depth map generation
US11328446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2017 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Depths of one or more objects in a scene may be measured with enhanced accuracy through the use of a light-field camera and a depth sensor. The light-field camera may capture a light-field image of the scene. The depth sensor may capture depth sensor data of the scene. Light-field depth data may be extracted from the light-field image and used, in combination with the sensor depth data, to generate a depth map indicative of distance between the light-field camera and one or more objects in the scene. The depth sensor may be an active depth sensor that transmits electromagnetic energy toward the scene; the electromagnetic energy may be reflected off of the scene and detected by the active depth sensor. The active depth sensor may have a 360° field of view; accordingly, one or more mirrors may be used to direct the electromagnetic energy between the active depth sensor and the scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.