Remotely controlled automatic camera tracking system
A remotely controlled automatic camera tracking system for self-photography is disclosed. The systems hereof combine the functions of remote camera operation, including closed loop automatic zoom control, and camera tracking by employing a system architecture that eliminates the requirement to have microprocessors coupled to the tracking station for the calculation of range and bearing. The system enables range and bearing information to be viewed by the operator, if desired, and conserves radio power.
1. A method for automated self-photography of a user, said method comprising the steps of:
a) determining the location coordinates of a reference point and of a base wherein a camera is associated with the base;
b) storing the location coordinates of the reference point and of the base;
c) orienting the camera at the reference point;
d) determining the location coordinates of a remote control associated with the user;
e) storing the location coordinates of the remote control in the remote control;
f) periodically updating the location coordinates of the remote control;
g) comparing the updated location coordinates of the remote control to immediately preceding location coordinates of the remote control;
h) determining orientation commands if a change in location coordinates is detected;
i) transmitting the orientation commands to the base wherein the camera associated with the base is oriented at the user; and
j) iteratively adjusting the tilt of the camera according to the distance between the base and the reference point to estimate the elevation of the camera and using the estimated elevation of the camera to calculate tilt commands that are transmitted to the base.
2. The method of claim 1 , further comprising the step of sending commands to a camera interface associated with the base from the remote unit wherein the commands cause the camera to record or to stop recording.
3. The method of claim 2 , further comprising the step of calibrating the zoom control setting of the camera by dividing the zoom control range between wide angle and telephoto into a finite number of stages and associating each stage with a focal length range of the camera and storing this information as zoom calibration data.
4. The method of claim 3 , further comprising the step of sending base to remote control distance information to the camera interface and using the base to remote control distance to adjust the zoom of the camera automatically based on said stored zoom calibration data.