Generating and displaying spatially offset sub-frames

• US 20050276517A1
• Filed: 06/15/2004
• Published: 12/15/2005
• Est. Priority Date: 06/15/2004
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Collins, David C., Aufranc, Richard E. Jr.
• Granted Patent: US 7,668,398 B2
• Time in Patent Office: Days
• US Class Current: 382/300
• CPC Class Codes: G06T 3/40 Scaling of whole images or parts thereof, e.g. expanding or contracting
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 5/395 Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen G09G5/399 takes precedence

Abstract

A method of displaying an image with a display device is provided. The method comprises receiving image data associated with an image, generating a set of three sub-frames using less than all of the image data, and alternating between displaying the set of three sub-frames in first, second, and third positions, wherein the second position is spatially offset from the first position, and wherein the third position is spatially offset from the first and the second positions.

Claims

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

receiving first image data associated with a first image;

converting a portion of the first image data to zero values;

generating a first set of three sub-frames using the first image data; and

alternating between displaying the first set of three sub-frames in first, second, and third positions, wherein the second position is spatially offset from the first position, and wherein the third position is spatially offset from the first and the second positions.

2. The method of claim 1 further comprising:

receiving second image data associated with a second image;

converting a portion of the second image data to zero values;

generating a second set of three sub-frames using the second image data; and

alternating between displaying the second set of three sub-frames in the first, the second, and fourth positions, wherein the fourth position is spatially offset from the first, the second, and the third positions.

3. The method of claim 2 further comprising:

alternating between displaying the second set of three sub-frames subsequent to alternating between displaying the first set of three sub-frames.

4. The method of claim 2 wherein the second position is vertically offset from the first position, wherein the third position is vertically and horizontally offset from the first position and horizontally offset from the second position, and wherein the fourth position is horizontally offset from the first position, vertically and horizontally offset from the second position, and vertically offset from the third position.

5. The method of claim 2 wherein the second position is vertically offset from the first position, wherein the third position is horizontally offset from the first position and vertically and horizontally offset from the second position, and wherein the fourth position is vertically and horizontally offset from the first position, horizontally offset from the second position, and vertically and horizontally offset from the third position.

6. The method of claim 2 wherein the second position is vertically and horizontally offset from the first position, wherein the third position is horizontally offset from the first position and vertically offset from the second position, and wherein the fourth position is vertically offset from the first position, horizontally offset from the second position, and vertically and horizontally offset from the third position.

7. The method of claim 2 wherein the second position is vertically and horizontally offset from the first position, wherein the third position is vertically offset from the first position and horizontally offset from the second position, and wherein the fourth position is horizontally offset from the first position, vertically offset from the second position, and vertically and horizontally offset from the third position.

8. The method of claim 1 further comprising:

generating the first set of three sub-frames using a pixel selection algorithm.

9. The method of claim 1 further comprising:

generating the first set of three sub-frames using a bilinear algorithm.

10. The method of claim 1 further comprising:

generating the first set of three sub-frames using a simulation kernel.

11. The method of claim 10 further comprising:

generating the first set of three sub-frames using an error kernel.

12. The method of claim 1 wherein the image comprises a plurality of image pixels, wherein the first set of three sub-frames comprise a plurality of sub-frame pixels that are centered with respect to the plurality of image pixels.

13. A system for displaying images, the system comprising:

a buffer adapted to receive first image data for a first image, the first image data comprising a first plurality of sets of four pixel values;

an image processing unit configured to convert one of the four pixel values from each of the first plurality of sets to a zero value and generate a first set of three sub-frames using the first image data; and

a display device adapted to alternately display the first set of three sub- frames in first, second, and third positions, wherein the second position is spatially offset from the first position, and wherein the third position is spatially offset from the first and the second positions.

14. The system of claim 13 wherein the first one of the four pixel values from each of the plurality of sets comprises a zero value.

15. The system of claim 13 wherein the display device is adapted to alternately display a first one of the first set of three sub-frames in the first position, wherein the display device is adapted to alternately display a second one of the first set of three sub-frames in the second position, and wherein the display device is adapted to alternately display a third one of the first set of three sub-frames in the third position.

16. The system of claim 13 wherein the buffer is adapted to receive second image data for a second image, the second image data comprising a second plurality of sets of four pixel values, wherein the image processing unit is configured to convert one of the four pixel values from each of the second plurality of sets to a zero value and generate a second set of three sub-frames using the second image data, and wherein the display device is adapted to alternately display the second set of three sub-frames in the second, the third and fourth positions, wherein the fourth position is spatially offset from the first, the second, and the third positions.

17. The system of claim 13 wherein the image processing unit is configured to generate the first set of three sub-frames using an adaptive multi-pass algorithm.

18. The system of claim 13 wherein the image processing unit is configured to generate the first set of three sub-frames using a center adaptive multi-pass algorithm.

19. A system for displaying images, the system comprising:

means for receiving first image data corresponding to a first image;

means for converting a portion of the first image data to zero values;

means for generating a first set of three sub-frames using the first image data; and

means for alternating between displaying the first set of three sub-frames in first, second, and third positions, wherein the second position is spatially offset from the first position, and wherein the third position is spatially offset from the first and the second positions.

20. The system of claim 19 further comprising:

means for receiving second image data corresponding to a second image;

means for converting a portion of the second image data to zero values;

means for generating a second set of three sub-frames using the second image data; and

means for alternating between displaying the second set of three sub- frames in the first, the third, and fourth positions, wherein the fourth position is spatially offset from the first, the second, and the third positions

21. The system of claim 19 wherein the means for generating the first set of three sub-frames includes means for generating the first set of three sub-frames using a pixel selection algorithm.

22. The system of claim 19 wherein the means for generating the first set of three sub-frames includes means for generating the first set of three sub-frames using a bilinear algorithm.

23. The system of claim 19 wherein the means for generating the first set of three sub-frames includes means for generating the first set of three sub-frames using an adaptive multi-pass algorithm.

24. The system of claim 19 wherein the means for generating the first set of three sub-frames includes means for generating the first set of three sub-frames using a center adaptive multi-pass algorithm.

25. A computer-readable medium having computer-executable instructions for performing a method of generating a sub-frame image which comprises three sub-frames for display at spatially offset positions to generate the appearance of an image, comprising:

receiving image data corresponding to the image, the image data comprising a plurality of sets of four pixel values;

converting one of the four pixel values from each of the plurality of sets to zero values; and

generating the three sub-frames using the image data.

26. The computer-readable medium of claim 25 wherein the computer- readable medium has computer-executable instructions for:

generating the three sub-frames using a pixel selection algorithm.

27. The computer-readable medium of claim 25 wherein the computer- readable medium has computer-executable instructions for:

generating the three sub-frames using a bilinear algorithm.

28. The computer-readable medium of claim 25 wherein the computer- readable medium has computer-executable instructions for:

generating the three sub-frames using an adaptive multi-pass algorithm.

29. The computer-readable medium of claim 25 wherein the computer- readable medium has computer-executable instructions for:

generating the three sub-frames using a center adaptive multi-pass algorithm.