Method and system for panoramic video stabilization, and portable terminal
US10812718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/698
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present application is applicable in the field of videos. Provided are a method and system for panoramic video stabilization, and a portable terminal. The method comprises: acquiring in real time the timestamp of a current state, an accelerometer count value, and an angular velocity value of a portable terminal; estimating the rotation vector of the current state by utilizing an Extended Kalman Filtering combined with the accelerometer count value and the angular velocity value; calculating a current rotation matrix via the Rodrigues' rotation formula on the basis of the rotation vector of the current state; and rotating a panoramic image on the basis of the current rotation matrix and producing a stabilized video frame. The present invention allows the stabilization of a jittering video frame and alleviates VR motion sickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.