Method for digitally generating a hologram, device, terminal device, associated system and computer program
US11067952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Jun 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a method for digitally generating a hologram in a screen plane of a hologram display device, including: obtaining intensity and depth maps of the scene corresponding to user viewpoint; projecting the points of the intensity map on planes parallel to the screen plane in a reference frame of the screen, one plane associated with one depth value of between minimum and maximum values of the depth map, a point of the intensity map projected on the plane of the planes associated with the depth value of the point in the depth map; compensating for distortion by modifying the planes of the scene, a point of one plane, called image point of an object point by conjugation of the convergent lens, being replaced by the object point; from the modified planes, propagating a complex sampled light wave to the screen plane and summation of the propagated light waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.