4D light field cameras
US7792423B2 · kind B2 · utility
91Cited by
4References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jan 15, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0075
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera acquires a 4D light field of a scene. The camera includes a lens and sensor. A mask is arranged in a straight optical path between the lens and the sensor. The mask including an attenuation pattern to spatially modulate the 4D light field acquired of the scene by the sensor. The pattern has a low spatial frequency when the mask is arranged near the lens, and a high spatial frequency when the mask is arranged near the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.