Methods and apparatus for light-field imaging
US8290358B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2008 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/232
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for light-field imaging. Light-field camera designs are described that produce higher spatial resolution than conventional plenoptic camera designs, while trading-off the light-field's angular sampling density. This lower angular resolution may be compensated for by a light-field image processing method that inserts data synthesized by view interpolation of the measured light-field. In one embodiment, a light-field image processing method that performs three-view morphing may be used to interpolate the missing angular samples of radiance. The light-field camera designs may be implemented in hand-held light-field cameras that may capture a light-field with a single exposure. Some of the light-field camera designs are internal to the camera, while others are external to the camera. One light-field camera design includes a single, relatively large lens and an array of negative lenses that are placed in front of (external to) the main lens of a conventional camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.