Generation, transmission, and display of sub-frames

• US 20080024389A1
• Filed: 07/27/2006
• Published: 01/31/2008
• Est. Priority Date: 07/27/2006
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Chang, Nelson L., de Souza e Silva Tavares, Leonardo, Damera-Venkata, Niranjan, O'Brien-Strain, Eamonn
• Application Number:
  US11/494,687
• Publication Number:
  US 20080024389A1
• Time in Patent Office: Days
• US Class Current: 345/1.2
• CPC Class Codes: H04N 17/00 Diagnosis, testing or measuring for television systems or their details
• CPC Class Codes: H04N 21/6547 comprising parameters, e.g. for client setup
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

A method performed by a sub-frame generator coupled to a network interface includes receiving calibration information associated with a configuration of a plurality of projection devices in an image display system using the network interface, generating a plurality of sub-frames for display onto at least partially overlapping positions on a display surface by the plurality of projection devices using image data and the calibration information, and transmitting the plurality of sub-frames to the image display system using the network interface.

Claims

1. A method performed by a sub-frame generator coupled to a network interface, the method comprising:

receiving calibration information associated with a configuration of a plurality of projection devices in an image display system using the network interface;

generating a plurality of sub-frames for display onto at least partially overlapping positions on a display surface by the plurality of projection devices using image data and the calibration information; and

transmitting the plurality of sub-frames to the image display system using the network interface.

2. The method of claim 1 further comprising:

configuring the plurality of sub-frames in accordance with a network protocol prior to transmitting the plurality of sub-frames.

3. The method of claim 1 further comprising:

transmitting the plurality of sub-frames by providing the plurality of sub-frames to a network coupled to the network interface.

4. The method of claim 1 wherein the calibration information includes a geometric relationship between a hypothetical reference projector and each of the plurality of projection devices.

5. The method of claim 1 further comprising:

generating each of the plurality of sub-frames with distortion

wherein the plurality of sub-frames are generated to cause the distortion not to be visible in response to being simultaneously displayed in at least partially overlapping positions using the first one of the plurality of sub-frames and the second one of the plurality of sub-frames, respectively.

6. The method of claim 5 wherein the plurality of sub-frames is generated to cause the distortion to be visible in response to fewer than all of the plurality of sub-frames being simultaneously displayed.

7. The method of claim 1 further comprising:

encrypting the plurality of sub-frames prior to transmitting the plurality of sub-frames.

8. The method of claim 1 further comprising:

compressing the plurality of sub-frames prior to transmitting the plurality of sub-frames.

9. The method of claim 1 further comprising:

receiving diagnostic information from the image display system using the network interface.

10. A display system comprising:

a plurality of projection devices;

a calibration unit; and

a network interface;

wherein the calibration unit is configured to transmit calibration information associated with a configuration of the plurality of projection devices using the network interface, wherein the network interface is configured to receive a plurality of sub-frames generated using the calibration information, and wherein the plurality of projection devices is configured to display the plurality of sub-frames onto at least partially overlapping positions on a display surface.

11. The display system of claim 10 wherein the network interface configures the calibration information in accordance with a network protocol prior to transmitting the calibration information.

12. The display system of claim 10 wherein the network interface is configured to transmit the calibration information by providing the calibration information to a network coupled to the network interface.

13. The display system of claim 10 wherein the calibration information includes a geometric relationship between a hypothetical reference projection device and each of the plurality of projection devices.

14. The display system of claim 10 wherein the calibration unit is configured to encrypt the calibration information prior to transmitting the calibration information.

15. The display system of claim 10 further comprising:

a control unit configured to generate diagnostic information associated with at least one of the plurality of projection devices and transmit the diagnostic information using the network interface.

16. A sub-frame generation system comprising:

a sub-frame generator configured to generate a plurality of sub-frames using image data and calibration information received across a network from a remotely located image display system, the calibration information identifying a configuration of a plurality of projection devices in the remotely located image display system; and

a network interface configured to transmit the plurality of sub-frames to the remotely located image display system using the network.

17. The sub-frame generation system of claim 16 wherein the sub-frame generator is configured to generate the plurality of sub-frames to include a plurality of moire patterns such that the moire patterns are not visible in response to a plurality of images being simultaneously displayed in at least partially overlapping positions using the plurality of sub-frames.

18. The sub-frame generation system of claim 16 wherein the sub-frame generator is configured to encrypt the plurality of sub-frames.

19. The sub-frame generation system of claim 16 wherein the sub-frame generator is configured to compress the plurality of sub-frames using redundant information in the plurality of sub-frames.

20. The sub-frame generation system of claim 16 wherein the plurality of sub-frames is generated based on maximization of a probability that a simulated image is the same as the image data.