CAMERA CONTROL SYSTEM CAPABLE OF POSITIONING AND TRACKING OBJECT IN SPACE AND METHOD THEREOF

• US 20090167867A1
• Filed: 04/08/2008
• Published: 07/02/2009
• Est. Priority Date: 12/31/2007
• Status: Abandoned Application

• Current Assignee: National Applied Research Laboratories National Center For High-Performance Computing
• Original Assignee: National Applied Research Laboratories National Center For High-Performance Computing
• Inventors: Wu, Jyh-Horng, Chen, Lun-Chi, Yu, Hui-Hung, Lin, Shyi-Ching
• Application Number:
  US12/099,775
• Publication Number:
  US 20090167867A1
• Time in Patent Office: Days
• US Class Current: 348/169
• CPC Class Codes: H04N 23/61 based on recognised objects
• CPC Class Codes: H04N 23/695 Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects

Abstract

A space position device capable of generating position signals according to its position in space is used in the camera control system for tracking an object. The space position device generates and transmits its position signals to a control unit every predetermined time interval. The control unit then generates control command for controlling a camera to rotate upward/downward, leftward/rightward, zoom in or zoom out according to the generated position signals such that the camera adjusts its focus on the space position device for tracking an object automatically.

Claims

1. A camera control system capable of positioning and tracking object in space, comprising:

a position device for generating and transmitting a position signal according to its position in space;

a receiver for receiving the position signal transmitted by the position device;

a control unit coupled to the receiver for generating a control command according to the position signal received by the receiver; and

a camera coupled to the control unit wherein the control command is for controlling the camera moving its focus.

2. The camera control system of claim 1, wherein the position device is a space position device capable of generating space position signal.

3. The camera control system of claim 1, wherein the position device comprises a wireless transmitter for transmitting the position signal wirelessly, the receiver being a wireless receiver for receiving the position signal wirelessly.

4. The camera control system of claim 1, wherein the position device comprises a transmitter for transmitting the position signal, the receiver receiving the position signal via physical connection.

5. The camera control system of claim 1, wherein the control unit generates the control command by obtaining the angle adjustment and the zooming rate of the camera according to the position signal.

6. The camera control system of claim 1, wherein the camera is a Pan/Tilt/Zoom (PTZ) camera.

7. The camera control system of claim 6, wherein the camera is utilized for rotating upward/downward, leftward/rightward, zooming in or zooming out according to the control command.

8. The camera control system of claim 1, wherein the camera is utilized for rotating and focusing on the position device to track the position device when receiving the control command.

9. A camera control method for positioning and tracking object in space, comprising steps:

generating and transmitting a position signal according to a position device'"'"'s position in space;

generating a control command according to the position signal; and

moving a camera'"'"'s focus according to the control command.

10. The camera control method of claim 9, wherein generating and transmitting a position signal according to a position device'"'"'s position in space comprises:

transmitting the position signal wirelessly.

11. The camera control method of claim 9, wherein generating and transmitting a position signal according to a position device'"'"'s position in space comprises:

transmitting the position signal via physical connection.

12. The camera control method of claim 9, wherein generating a control command according to the position signal comprises:

generating the control command by obtaining the angle adjustment and the zooming rate of the camera according to the position signal.

13. The camera control method of claim 9, wherein moving a camera'"'"'s focus according to the control command comprises:

rotating the camera upward/downward, leftward/rightward, zooming in or zooming out.

14. The camera control method of claim 9, wherein moving a camera'"'"'s focus according to the control command comprises:

controlling the camera to rotate and focus on the position device to track the position device.