Title:
PANORAMIC VIDEO ANTI-SHAKE METHOD AND PORTABLE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2020/125131
Kind Code:
A1
Abstract:
The present invention is applicable to the field of videos, and provides a panoramic video anti-shake method and a portable terminal. The method comprises: obtaining world coordinates of any reference point in a world coordinate system in real time, and simultaneously obtaining camera coordinates corresponding to the reference point in the portable terminal and an angular velocity value of a current state of a gyroscope in the portable terminal; smoothing the motion of a camera using an extended Kalman filter; decomposing the smoothed motion to synthesize virtual lens motion of a free lens mode, and calculating the rotation amount of the virtual lens; and re-projecting an original video to generate a stable video. In the present invention, by decomposing the motion of the camera, keeping an original photographing view angle of the camera, and synthesizing the virtual lens motion, the stable video is generated.
Inventors:
CHEN CONG (CN)
Application Number:
PCT/CN2019/109482
Publication Date:
June 25, 2020
Filing Date:
September 30, 2019
Export Citation:
Assignee:
ARASHI VISION INC (CN)
International Classes:
H04N5/232; H04N5/21
Foreign References:
| CN109561254A | 2019-04-02 | |||
| CN107040694A | 2017-08-11 | |||
| CN101715067A | 2010-05-26 | |||
| CN108462838A | 2018-08-28 | |||
| CN101976429A | 2011-02-16 | |||
| CN108933896A | 2018-12-04 | |||
| CN108564554A | 2018-09-21 | |||
| CN104902142A | 2015-09-09 | |||
| US20130163815A1 | 2013-06-27 | |||
| CN103314570A | 2013-09-18 |
Other References:
See also references of EP 3886424A4
Attorney, Agent or Firm:
CHINA RANKTOP IP OFFICE (CN)
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