Patent ID: 11968449
Assignee: ARASHI VISION INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A camera lens smoothing method, comprising the steps of:
obtaining a current video frame of a camera video and gyroscope information of the current video frame, and calculating a first rotation matrix of a current pose of the camera;
conducting smoothing on the first rotation matrix, and calculating a third rotation matrix;
conducting viewpoint decomposition on the current video frame according to the third rotation matrix, and calculating a fourth rotation matrix;
conducting 3D rotation on the current video frame according to the fourth rotation matrix, and rebuilding an anti-shake video;
wherein the conducting smoothing on the first rotation matrix, and calculating a third rotation matrix specifically comprises:
conducting first smoothing on the first rotation matrix to obtain a second rotation matrix; and
calculating the third rotation matrix of the camera by limiting smoothing maximum amplitude value;
wherein a method of conducting first smoothing on the first rotation matrix to obtain the second rotation matrix specifically comprises: conducting first smoothing on a quaternion of the first rotation matrix with constrained least squares by employing N+1 windows, and calculating the second rotation matrix.