Generating and displaying spatially offset sub-frames

• US 20080094419A1
• Filed: 10/24/2006
• Published: 04/24/2008
• Est. Priority Date: 10/24/2006
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Allen, William J., Aufranc, Richard, Larson, Arnold W., Leigh, Stan E.
• Application Number:
  US11/585,376
• Publication Number:
  US 20080094419A1
• Time in Patent Office: Days
• US Class Current: 345/660
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0435 Change or adaptation of the frame rate of the video stream
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 3/007 Use of pixel shift techniques, e.g. by mechanical shift of the physical pixels or by optical shift of the perceived pixels
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H04N 9/3179 Video signal processing therefor

Abstract

A method of displaying an image with a display device includes receiving image data for the image. Sub-frame shifting parameters are identified based on at least one of image characteristics of the image, system status information, and user-defined parameters. A first plurality of sub-frames corresponding to the image data is generated based on the identified sub-frame shifting parameters. The first plurality of sub-frames is displayed at a first plurality of spatially offset sub-frame display positions using the identified shifting parameters, thereby producing a displayed image.

Claims

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

receiving image data for the image;

identifying sub-frame shifting parameters based on at least one of image characteristics of the image, system status information, and user-defined parameters;

generating a first plurality of sub-frames corresponding to the image data and based on the identified sub-frame shifting parameters; and

displaying the first plurality of sub-frames at a first plurality of spatially offset sub-frame display positions using the identified shifting parameters, thereby producing a displayed image.

2. The method of claim 1, wherein the sub-frame shifting parameters comprise a quantity of sub-frame display positions.

3. The method of claim 1, wherein the sub-frame shifting parameters comprise pattern of movement information.

4. The method of claim 1, wherein the sub-frame shifting parameters comprise locations of the sub-frame display positions.

5. The method of claim 1, wherein the sub-frame shifting parameters comprise shifting speed information.

6. The method of claim 1, wherein the sub-frame shifting parameters comprise duration of sub-frame display.

7. The method of claim 1, wherein the sub-frame shifting parameters comprise a quantity of sub-frames to generate for the received image data.

8. The method of claim 1, wherein the image characteristics include at least one of resolution, spatial frequency, brightness, and amount of motion.

9. The method of claim 1, wherein the system status information includes at least one of defective pixel information, sub-frame display distortion information, drift information representing an amount of drift of sub-frame display positions, pixel shape information, and display conditions.

10. The method of claim 1, wherein the user-defined parameters include at least one of a desired sharpness of the displayed image, a desired quantity of sub-frame display positions, and a desired number of pixels in the displayed image.

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

identifying at least one sub-frame generation algorithm based on at least one of the image characteristics of the image, the system status information, and the user-defined parameters, and wherein the first plurality of sub-frames are generated using the identified at least one sub-frame generation algorithm.

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

a device adapted to receive image data for an image;

an image processing unit configured to identify at least one sub-frame generation algorithm based on at least one of image characteristics of the image, system status information, and user-defined parameters, the image processing unit configured to define a first set of sub-frames corresponding to the image data using the identified at least one sub-frame generation algorithm; and

a display device adapted to display the first set of sub-frames at a first set of spatially offset sub-frame display positions, thereby producing a displayed image.

13. The system of claim 12, wherein the image characteristics include at least one of resolution, spatial frequency, brightness, and amount of motion.

14. The system of claim 12, wherein the system status information includes at least one of defective pixel information, sub-frame display distortion information, drift information representing an amount of drift of sub-frame display positions, pixel shape information, and display conditions.

15. The system of claim 12, wherein the user-defined parameters include a desired sharpness of the displayed image.

16. The system of claim 12, wherein the system is configured to identify sub-frame shifting parameters based on at least one of the image characteristics of the image, the system status information, and the user-defined parameters, and wherein the sub-frame shifting parameters comprise at least one of a quantity of sub-frame display positions, pattern of movement information, locations of the sub-frame display positions, shifting speed information, duration of sub-frame display, and quantity of sub-frames.

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

receiving a high resolution image;

identifying sub-frame shifting parameters and at least one sub-frame generation algorithm based on at least one of image characteristics of the high resolution image, system status information, and user-defined parameters; and

generating a first plurality of pixel values for a first plurality of low resolution sub-frames based on the high resolution image, the identified shifting parameters, and the identified at least one sub-frame generation algorithm.

18. The method of claim 17, wherein the image characteristics include at least one of resolution, spatial frequency, brightness, and amount of motion.

19. The method of claim 17, wherein the system status information includes at least one of defective pixel information, sub-frame display distortion information, drift information representing an amount of drift of sub-frame display positions, pixel shape information, and display conditions.

20. The method of claim 17, wherein the user-defined parameters include a desired sharpness of displayed images.