Wireless sensor based camera location and orientation

• US 8,694,020 B2
• Filed: 01/19/2007
• Issued: 04/08/2014
• Est. Priority Date: 01/19/2007
• Status: Expired due to Fees

• Current Assignee: Magnolia Licensing LLC (IP Edge LLC)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Guo, Yang, Mathur, Saurabh, Ramaswamy, Kumar
• Primary Examiner(s): MIZRAHI, DIANE D
• Application Number:
  US12/448,887
• Publication Number:
  US 20100081452A1
• Time in Patent Office: 2,636 Days
• Field of Search: 455/456.1, 455/457, 345/156, 345/158, 345/179, 382/106, 341/20, 348/207.99, 700/90, 710/1
• US Class Current: 455/456.1
• CPC Class Codes: H04H 60/54 where broadcast information is generated

Abstract

An apparatus a receiver for a camera for signal communication with transmitters in known locations for determining location of the camera, a compass for the camera for determining orientation of the camera, and a device for determining time associated with the determined camera location and orientation.

Claims

1. A method of producing metadata for post-processing in a production process of a motion picture, the method comprising steps of:

providing a camera operative to record video content representing the motion picture, and to move in a plurality of different directions while recording the video content and shooting the motion picture;

determining location, orientation and corresponding time information for the camera in response to the movement of the camera while recording the video content and shooting the motion picture;

gathering the determined location, orientation and corresponding time information for the camera as the metadata for the recorded video content; and

wirelessly transmitting the metadata from a wireless transmitter associated with the camera to an external device for the post-processing.

2. The method of claim 1, wherein the step of determining camera location further comprises receiving signals from transmitters around the camera.

3. The method of claim 1, wherein the step of determining camera location comprises determining the location by a receiver associated with the camera communicating with transmitters positioned at known locations.

4. The method of claim 1, wherein the step of determining camera orientation comprises determining camera heading information from a compass associated with the camera.

5. The method of claim 1, wherein the step of determining camera location comprises calculating distance estimates between a receiver mounted on the camera and nearby beacons that are part of a location system using a combination of radio frequency and ultrasound technologies.

6. The method of claim 1, wherein the step of determining time comprises determining time information from communication with one of a global position system and cellular network.

7. The method of claim 1, wherein the external device is a metadata server operative to perform the post-processing with the metadata as part of the production process.

8. An apparatus operative to provide metadata for post-processing in a production process of a motion picture, the apparatus comprising:

a receiver for a camera, the receiver being operative to provide signal communication with transmitters in known locations for determining location of the camera as the camera is moved to record video content representing the motion picture;

a compass for the camera, the compass being operative to determine orientation of the camera as the camera is moved to record the video content while shooting the motion picture; and

a device for determining time associated with the determined camera location and orientation as the camera is moved to record the video content while shooting the motion picture; and

wherein data representing the determined location, orientation and time of the camera is gathered to represent the metadata for the recorded video content, and the metadata is wirelessly transmitted to an external device for the post-processing.

9. The apparatus of claim 8, wherein the receiver, compass and device for determining time are responsive to movement by the camera to provide the camera'"'"'s moving trajectory and which direction the camera is moving.

10. The apparatus of claim 8, further comprising a transmitter associated with the camera, the transmitter being operative to wirelessly transmit the metadata to the external device.

11. The apparatus of claim 8, wherein the receiver is a component of a location system using a combination of radio frequency and ultrasound technologies.

12. The apparatus of claim 8, wherein the compass is a digital compass.

13. The apparatus of claim 8, wherein the receiver is responsive to signals from beacons at known locations.

14. The apparatus of claim 8, wherein the device for determining time communicates with one of a cellular network and a Global Positioning System.

15. The apparatus of claim 8, further comprising a transmitter operative to wirelessly transmit changes in the determined location, orientation and time for movement of the camera to a remote location for determining a moving trajectory and direction of the camera.

16. The apparatus of claim 8, wherein the external device is a metadata server operative to perform the post-processing with the metadata as part of the production process.

17. A camera operative to provide metadata for post-processing in a production process of a motion picture, the camera comprising:

a receiver operative to provide signal communication with transmitters in known locations for determining location of the camera as the camera is moved to record video content representative of the motion picture;

a compass operative to determine orientation of the camera as the camera is moved to record the video content and shoot the motion picture; and

a device operative to determine time associated with the determined camera location and orientation as the camera is moved to record the video content and shoot the motion picture; and

wherein data representing determined location, orientation and time of the camera is gathered to represent the metadata for the recorded video content, and the metadata is wirelessly transmitted from the camera to an external device for the post-processing.

18. The camera of claim 17, wherein the external device is a metadata server operative to perform the post-processing with the metadata as part of the production process.

19. The camera of claim 17, wherein the receiver, compass and device are responsive to movement by the camera to provide the camera'"'"'s moving trajectory and which direction the camera is moving.