Displaying sub-frames at spatially offset positions on a circle

• US 7,483,044 B2
• Filed: 01/30/2004
• Issued: 01/27/2009
• Est. Priority Date: 01/30/2004
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Damera-Venkata, Niranjan
• Primary Examiner(s): Nguyen; Kevin M
• Application Number:
  US10/768,215
• Publication Number:
  US 20050168493A1
• Time in Patent Office: 1,824 Days
• Field of Search: 345/15, 345/24, 345/442, 345/475, 345/32, 345690-699, 708/275, 348/625, 353/46
• US Class Current: 345/694
• CPC Class Codes: G06T 3/4069 by subpixel displacements
• CPC Class Codes: G09G 2340/0464 Positioning
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/391 Resolution modifying circuits, e.g. variable screen formats

Abstract

A method of displaying an image with a display device includes receiving image data for the image. The method includes generating a plurality of sub-frames corresponding to the image data. The method includes displaying the sub-frames at a set of spatially offset positions located on a circle.

Claims

1. A method of displaying an image with a display device, the method comprising:

receiving image data for the image;

generating a plurality of multiple-pixel image sub-frames corresponding to the image data;

displaying the sub-frames in a circularly-shifted manner at a set of spatially offset positions located on a circle; and

wherein the plurality of sub-frames are generated based on a set of spatially offset sub-frame positions, a first function that represents a simulated high resolution image that is based on the superimposition of circularly-shifted sub-frames, and a second function that represents a desired high resolution image.

2. The method of claim 1, wherein the sub-frames are displayed with a temporal offset.

3. The method of claim 1, wherein the sub-frames are shifted around the circle at a constant velocity.

4. The method of claim 1, wherein the plurality of sub-frames includes four sub-frames, and wherein a first one of the sub-frames is displayed at multiple positions along a first quadrant of the circle, a second one of the sub-frames is displayed at multiple positions along a second quadrant of the circle, a third one of the sub-frames is displayed at multiple positions along a third quadrant of the circle, and a fourth one of the sub-frames is displayed at multiple positions along a fourth quadrant of the circle.

5. The method of claim 1, and further comprising:

receiving a second set of image data for a second image;

generating a second plurality of sub-frames corresponding to the second set of image data; and

displaying the sub-frames in the second plurality at the set of spatially offset positions located on the circle.

6. The method of claim 1, wherein the first function includes a matrix for defining characteristics of a pixel grid for the sub-frames.

7. The method of claim 1, wherein the second function includes a matrix for defining characteristics of a pixel grid for the desired high resolution image.

8. The method of claim 1, wherein the first function includes a pixel shape function for defining characteristics of pixels of the sub-frames.

9. The method of claim 1, wherein the second function includes a pixel shape function for defining characteristics of pixels of the desired high resolution image.

10. The method of claim 1, wherein the sub-frames are generated based on an integral equation that includes the first function and the second function.

11. The method of claim 10, wherein an integrand of the integral equation includes a difference between the first function and the second function.

12. A system for displaying an image, the system comprising:

a buffer adapted to receive image data for an image;

an image processing unit configured to define a set of multiple-pixel image sub-frames corresponding to the image data;

a display device adapted to display the sub-frames in a circularly-shifted manner at spatially offset sub-frame positions along a circle; and

wherein the image processing unit is configured to define the set of sub-frames based on a given plurality of spatially offset sub-frame positions, a first function that represents a simulated high resolution image that is based on the superimposition of circularly-shifted sub-frames, and a second function that represents a desired high resolution image.

13. The system of claim 12, wherein the display device is configured to display the sub-frames at different points in time.

14. The system of claim 12, wherein the sub-frames are shifted around the circle at a constant velocity.

15. The system of claim 12, wherein the set of sub-frames includes four sub-frames, and wherein a first one of the sub-frames is displayed at multiple positions along a first quadrant of the circle, a second one of the sub-frames is displayed at multiple positions along a second quadrant of the circle, a third one of the sub-frames is displayed at multiple positions along a third quadrant of the circle, and a fourth one of the sub-frames is displayed at multiple positions along a fourth quadrant of the circle.

16. The system of claim 12, wherein the buffer is adapted to receive a second set of image data for a second image, the image processing unit is configured to define a second set of sub-frames corresponding to the second set of image data, and the display device is adapted to display the sub-frames in the second set at the spatially offset sub-frame positions along the circle.

17. The system of claim 12, wherein the first function includes a matrix for defining distances between grid points of a pixel grid for the sub-frames.

18. The system of claim 12, wherein the second function includes a matrix for defining distances between grid points of a pixel grid for the desired high resolution image.

19. The system of claim 12, wherein the first function includes a pixel shape function for defining a shape of pixels of the sub-frames.

20. The system of claim 12, wherein the second function includes a pixel shape function for defining a shape of pixels of the desired high resolution image.

21. The system of claim 12, wherein the sub-frames are generated based on an integral equation that includes the first function and the second function.

22. The system of claim 21, wherein an integrand of the integral equation includes a difference between the first function and the second function.

23. A system for generating low resolution sub-frames for display at spatially offset positions to generate the appearance of a high resolution image, the system comprising:

means for receiving high resolution images; and

means for generating a plurality of low resolution sub-frames for each received high resolution image based on a given set of spatially offset sub-frame positions located on a circle, a first function that represents a simulated high resolution image that is based on the superimposition of circularly-shifted sub-frames, and a second function that represents the received high resolution image, wherein the generated sub-frames are configured to be displayed in a circularly-shifted manner at the set of spatially offset positions located on the circle to produce a representation of the received high resolution image.

24. The system of claim 23, wherein the first function includes a matrix for defining characteristics of a pixel grid for the sub-frames, and wherein the second function includes a matrix for defining characteristics of a pixel grid for the received high resolution images.

25. The system of claim 23, wherein the first function includes a pixel shape function for defining characteristics of pixels of the sub-frames, and wherein the second function includes a pixel shape function for defining characteristics of pixels of the received high resolution images.

26. The system of claim 23, wherein the sub-frames are generated based on an integral equation that includes the first function and the second function, and wherein an integrand of the integral equation includes a difference between the first function and the second function.

27. A computer-readable medium having computer-executable instructions for performing a method of generating low resolution sub-frames for display at spatially offset sub-frame positions to give the appearance of a high resolution image, comprising:

receiving a high resolution image; and

generating a plurality of low resolution sub-frames corresponding to the high resolution image based on a given set of spatially offset sub-frame positions located on a circle, a first function that represents a simulated high resolution image that is based on the superimposition of circularly-shifted sub-frames, and a second function that represents the received high resolution image, wherein the generated sub-frames are configured to be displayed in a circularly-shifted manner at the set of spatially offset sub-frame positions located on the circle to produce a representation of the received high resolution image.

28. The computer-readable medium of claim 27, wherein the first function includes a matrix for defining characteristics of a pixel grid for the sub-frames, and wherein the second function includes a matrix for defining characteristics of a pixel grid for the received high resolution image.

29. The computer-readable medium of claim 27, wherein the first function includes a pixel shape function for defining characteristics of pixels of the sub-frames, and wherein the second function includes a pixel shape function for defining characteristics of pixels of the received high resolution image.

30. The computer-readable medium of claim 27, wherein the sub-frames are generated based on an integral equation that includes the first function and the second function, and wherein an integrand of the integral equation includes a difference between the first function and the second function.