Systems and methods for implementing augmented reality
US9721387B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2011 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | May 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method implemented in a video playback system is described for incorporating augmented reality (AR) into a video stream. The method comprises determining a target pattern, determining an inner pattern in the target pattern, determining a relationship between the target pattern and the inner pattern, and receiving, by the video playback system, frames of the video stream. For each frame within the frame sequence, binarization is performed according to a predetermined threshold. Based on whether a location of the target pattern can be determined, a location of the inner pattern is determined. Based on the location of the inner pattern on received frames and the determined relationship between the target pattern and the inner pattern, a location of the target pattern is determined. The method further comprises displaying a virtual object with the target pattern on an output device based on the location of the target pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.