Panum's area measurement method, apparatus, and wearable display device
US11517195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2020 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Apr 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/41
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A panum's area measurement method includes: projecting a first parallax image of a spatial object to the left eye of a user under test, and projecting a second parallax image of the spatial object to the right eye of the user under test, the first parallax image comprising a first homologous point and the second parallax image comprising a second homologous point; adjusting a horizontal parallax amount between the first homologous point and the second homologous point until the user under test observes the spatial object producing a ghost; acquiring a parallax amount parameter Δne; calculating a horizontal physical spacing Δx between the first homologous point and the second homologous point based on the parallax amount parameter Δne; and calculating a panum's area range (μin, μout) of the user under test based on the horizontal physical spacing Δx.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.