Title:
PANORAMIC VIDEO ANTI-SHAKE METHOD AND PORTABLE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2020/125130
Kind Code:
A1
Abstract:
The present invention is applicable in the field of videos, and provides a panoramic video anti-shake method and portable terminal. The method comprises: acquiring world coordinates of any reference point in the world coordinate system in real time, meanwhile, acquiring the corresponding camera coordinates of the reference point in the portable terminal, and the angular velocity value of the current state of the gyroscope in the portable terminal; smoothing the motion of the camera by using the extended Kalman filter; performing decomposition processing on the smoothed motion, synthesizing the motion of the virtual lens fixed in the horizontal direction, calculating the rotation amount of the virtual lens; and re-projecting the original video to generate the stable video. By decomposing the motion of the camera and synthesizing the motion of the virtual lens, the present invention can filter the motions in other directions except the horizontal direction, only reserve the motion in the horizontal direction of the panoramic video, generate the stable video, and reserve the original shooting visual angle of the camera.
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Inventors:
CHEN CONG (CN)
Application Number:
PCT/CN2019/109481
Publication Date:
June 25, 2020
Filing Date:
September 30, 2019
Export Citation:
Assignee:
ARASHI VISION INC (CN)
International Classes:
H04N5/21; H04N5/232
Foreign References:
| CN109688327A | 2019-04-26 | |||
| CN107801014A | 2018-03-13 | |||
| CN107040694A | 2017-08-11 | |||
| CN108366243A | 2018-08-03 | |||
| CN104735356A | 2015-06-24 | |||
| US20040183898A1 | 2004-09-23 |
Attorney, Agent or Firm:
CHINA RANKTOP IP OFFICE (CN)
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