Invention Grant
- Patent Title: Image stabilization of a video stream captured by a panable and/or tiltable video camera
-
Application No.: US17531995Application Date: 2021-11-22
-
Publication No.: US11765459B2Publication Date: 2023-09-19
- Inventor: Tor Nilsson , Johan Förberg , Toivo Henningsson , Johan Nyström
- Applicant: Axis AB
- Applicant Address: SE Lund
- Assignee: Axis AB
- Current Assignee: Axis AB
- Current Assignee Address: SE Lund
- Agency: Volpe Koenig
- Priority: EP 212227 2020.12.07
- Main IPC: H04N5/232
- IPC: H04N5/232 ; H04N23/68

Abstract:
A method for image stabilization of a video stream captured by a panable and/or tiltable video camera the method comprising: generating a motor position signal, Y1, of a pan/tilt motor of the video camera; generating a gyro signal, Y2, of a gyroscopic sensor of the video camera; generating a reference signal from a predetermined movement curve of the pan/tilt motor of the video camera, the reference signal is a reference on how a pan/tilt operation of the video camera is made without shaking of the video camera; from the motor position signal, Y1, and the gyro signal, Y2, generating a combined signal, Y, according to: Y=F1*Y1+F2*Y2, wherein F1 is a low pass filter and F2 is a high pass filter; and performing image stabilization on the video stream based on a difference between the combined signal, Y, and the reference signal.
Public/Granted literature
- US20220182547A1 IMAGE STABILIZATION OF A VIDEO STREAM CAPTURED BY A PANABLE AND/OR TILTABLE VIDEO CAMERA Public/Granted day:2022-06-09
Information query