Color contrast enhanced rendering method, device and system suitable for optical see-through head-mounted display
US11854172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jun 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a color contrast enhanced rendering method, device and system suitable for an optical see-through head-mounted display. The method includes: (1) acquiring a background environment in real time to obtain a background video and performing Gaussian blur and visual field correction on the video; (2) converting an original rendering color and a processed video color from an RGB color space to a CIELAB color space scaled to a unit sphere range; (3) finding an optimal rendering color based on the original rendering color and the processed video color in the scaled CIELAB space according to a set color difference constraint, a chromaticity saturation constraint, a brightness constraint and a just noticeable difference constraint; and (4) after converting the optimal rendering color back to the RGB space, performing real-time rendering by using the optimal rendering color of the RGB space. The method is widely applied and capable of obviously improving the discrimination between a virtual content and a background environment and supporting various virtual scenes and background environments without a pre-preparation process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.