METHOD AND SYSTEM FOR STABILIZING VIDEO IMAGES
First Claim
1. A video camera assembly, comprising:
- at least one of a pan motor rotatable about a pan axis and a tilt motor rotatable about a tilt axis;
a video camera coupled to said at least one of said pan motor and said tilt motor, said video camera is rotatable about at least one of the pan axis and the tilt axis, said video camera subject to an oscillatory displacement due to at least one of a vibrational excitation from a source external to said video camera assembly and a source internal to said video camera assembly;
an accelerometer coupled to said at least one of said pan motor and said tilt motor; and
a controller communicatively coupled to said at least one of said pan motor and said tilt motor, said controller further communicatively coupled to said accelerometer and said video camera, said controller configured to;
receive acceleration data from said accelerometer;
determine an oscillatory displacement of said video camera using the received acceleration data;
generate a motor angular modulation signal; and
apply the motor angular modulation signal to at least one of said pan motor and said tilt motor to reduce the oscillatory displacement of said video camera.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and system for video camera assembly are provided. The video camera assembly includes at least one of a pan mechanism rotatable about a pan axis and a tilt mechanism rotatable about a tilt axis. The video camera assembly further includes an accelerometer coupled to the at least one of the pan mechanism and the tilt mechanism and a controller communicatively coupled to the at least one of the pan motor and the tilt motor, the controller further communicatively coupled to the accelerometer, and the video camera. The controller is configured to receive acceleration data from the accelerometer, determine an oscillatory displacement of the video camera using the received acceleration data, generate a motor angular modulation signal, and apply the motor angular modulation signal to at least one of the pan motor and the tilt motor to reduce the oscillatory displacement of the video camera.
-
Citations
20 Claims
-
1. A video camera assembly, comprising:
-
at least one of a pan motor rotatable about a pan axis and a tilt motor rotatable about a tilt axis; a video camera coupled to said at least one of said pan motor and said tilt motor, said video camera is rotatable about at least one of the pan axis and the tilt axis, said video camera subject to an oscillatory displacement due to at least one of a vibrational excitation from a source external to said video camera assembly and a source internal to said video camera assembly; an accelerometer coupled to said at least one of said pan motor and said tilt motor; and a controller communicatively coupled to said at least one of said pan motor and said tilt motor, said controller further communicatively coupled to said accelerometer and said video camera, said controller configured to; receive acceleration data from said accelerometer; determine an oscillatory displacement of said video camera using the received acceleration data; generate a motor angular modulation signal; and apply the motor angular modulation signal to at least one of said pan motor and said tilt motor to reduce the oscillatory displacement of said video camera. - View Dependent Claims (2, 3)
-
-
4. A method of operating a video camera assembly that includes a video camera, an accelerometer, and at least one of a pan motor and a tilt motor, said method comprising:
-
determining an oscillatory displacement of the video camera using the accelerometer; and applying a correction signal to at least one of said pan motor and said tilt motor that opposes the oscillatory displacement. - View Dependent Claims (5, 6, 7, 8, 9, 10)
-
-
11. A video system, comprising:
-
an enclosure comprising an accelerometer; a video camera assembly positioned at least partially within said enclosure, said video camera assembly including a video camera and at least one of a pan mechanism and a tilt mechanism, said pan mechanism comprising a pan motor and a pan position encoder, said tilt mechanism comprising a tilt motor and a tilt position encoder; and a controller communicatively coupled to said video camera assembly, said controller is configured to; receive video data from said video camera; analyze the video data from said video camera to determine differences between sequential frames of the video data; determine displacement vectors from the analyzed video data, said displacement vectors representing a frequency and phase of motion of said video camera; and transmit the determined displacement vectors to a gain adjustment module. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification