Estimating and using relative head pose and camera field-of-view
US11019246B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2020 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Feb 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video or still hand-held digital camera is activated or controlled based on estimation of a user head pose or gaze direction. The system comprises uses two wearable devices associated with right and left sides of the user body, each comprises an RF beacon. The head pose or gaze detection is estimated by comparing the signal strength (such as RSSI) or the phase of the RF signals from the wearable devices at the digital camera device. An angular deviation between the head pose (or gaze detection) and the digital camera (such as the line of sight) is estimated, and the digital camera is activated or controlled based on comparing the angular deviation to a set threshold. The RF signals may be Personal Area Network (PAN) signals, such as Bluetooth Low Energy (BLE) signals. The wearable devices may be head mounted, structured as glasses, earpieces, headphones, or hat mounted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.