Generating and displaying spatially offset sub-frames using image data converted from a different color space

• US 7,657,118 B2
• Filed: 06/09/2004
• Issued: 02/02/2010
• Est. Priority Date: 06/09/2004
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Aufranc, Richard E., Collins, David C.
• Primary Examiner(s): Mehta; Bhavesh M
• Assistant Examiner(s): MOTSINGER, SEAN T
• Application Number:
  US10/864,125
• Publication Number:
  US 20050275642A1
• Time in Patent Office: 2,064 Days
• Field of Search: None
• US Class Current: 382/276
• 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 2340/0464 Positioning
• CPC Class Codes: G09G 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607
• CPC Class Codes: H04N 9/646 for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Abstract

A method of displaying an image with a display device is provided. The method comprises receiving first image data for the image where the first image data is associated with a first color space, converting the first image data to second image data associated with a second color space, generating first and second sub-frames using the second image data, and alternating between displaying the first sub-frame in a first position and displaying the second sub-frame in a second position spatially offset from the first position.

Claims

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

receiving first image data for the image with an image processing unit, the first image data associated with a first color space;

converting the first image data to second image data associated with a second color space having a first component and a second component with the image processing unit;

generating first and second sub-frames with the image processing unit from the first component of the second image data with a first type of image processing;

generating third and fourth sub-frames from the second component of the second image data with a second type of image processing that differs from the first type of image processing;

converting the first and the third sub-frames into a fifth sub-frame in the first color space with the image processing unit;

converting the second and the fourth sub-frames into a sixth sub-frame in the first color space; and

alternating between displaying the fifth sub-frame in a first position and displaying the sixth sub-frame in a second position spatially offset from the first position with the display device.

2. The method of claim 1 further comprising:

generating seventh and eighth sub-frames with the image processing unit from the first component of the second image data with the first type of image processing;

generating ninth and tenth sub-frames from the second component of the second image data with the second type of image processing;

converting the seventh and the ninth sub-frames into an eleventh sub-frame in the first color space with the image processing unit;

converting the eighth and the tenth sub-frames into a twelfth sub-frame in the first color space; and

alternating between displaying the fifth sub-frame in the first position, displaying the sixth sub-frame in the second position spatially offset from the first position, displaying the eleventh sub-frame in a third position spatially offset from the first position and the second position, and displaying the twelfth sub-frame in a fourth position spatially offset from the first position, the second position, and the third position with the display device.

3. The method of claim 1 wherein the first color space comprises an RGB color space, and wherein the second color space comprises a YUV color space.

4. The method of claim 1 further comprising:

generating the first and the second sub-frames with the image processing unit using a simulation kernel.

5. The method of claim 1 further comprising:

generating the first and the second sub-frames with the image processing unit using an error kernel.

6. The method of claim 1 wherein the image comprises a set of image pixels, wherein the first and the second sub-frames comprise a set of sub-frame pixels, and wherein each of the set of sub-frame pixels is centered relative to a respective one of the set of image pixels.

7. The method of claim 1 wherein the first image data comprises a plurality of pixels at a first resolution, and wherein the first and the second sub-frames comprise a second plurality of pixels at a second resolution that is less than the first resolution.

20. The method of claim 1 wherein the first component of the second image data is a luminance component, and wherein the second component of the second image data is a chrominance component.

21. The method of claim 1 further comprising:

generating the first and the second sub-frames to include first and second sub-frame pixel values, respectively, and wherein the first sub-frame pixel value is calculated using the first component of the second image data and the second sub-frame pixel value with the image processing unit;

wherein a region of influence associated with the first sub-frame pixel value comprises a number of pixel values in the first component of the second image data that corresponds to a number of iterations used to generate the first and the second sub-frames.

22. The method of claim 1 further comprising:

generating the first and the second sub-frames with the image processing unit, wherein the first and the second sub-frames comprise a plurality of sub-frame pixel values and a plurality of error values, and wherein at least a first one of the plurality of sub-frame pixel values is calculated using the first component of the second image data, at least a second one of the plurality of sub-frame pixel values, and at least one of the plurality of error values;

wherein a region of influence associated with the first one of the plurality of sub-frame pixel values comprises a number of pixel values in the first component of the second image data that corresponds to a number of iterations used to generate the first and the second sub-frames.

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

a buffer adapted to receive first image data for the image, the first image data associated with a first color space;

an image processing unit configured to convert the first image data to second image data associated with a second color space with a first component and a second component, generate first and second sub-frames from the first component of the second image data with a first type of image processing, generate third and fourth sub-frames from the second component of the second image data with a second type of image processing that differs from the first type of image processing, convert the first and the third sub-frames into a fifth sub-frame in the first color space, and convert the second and the fourth sub-frames into a sixth sub-frame in the first color space; and

a display device adapted to alternately display the fifth sub-frame in a first position and the sixth sub-frame in a second position spatially offset from the first position.

9. The system of claim 8 wherein the first component of the second image data comprises luminance data, and wherein the second component of the second image data comprises chrominance data.

10. The system of claim 8 wherein the first color space comprises an RGB color space, and wherein the second color space comprises a YUV color space.

11. The system of claim 8 wherein the image processing unit is configured to generate the first and the second sub-frames using a simulation kernel.

12. The system of claim 8 wherein the image processing unit is configured to generate the first and the second sub-frames using an error kernel.

23. The system of claim 8 wherein the image processing unit is configured to generate the first and the second sub-frames to include first and second sub-frame pixel values, respectively, and wherein the first sub-frame pixel value is calculated using the first component of the second image data and the second sub-frame pixel value, and wherein a region of influence associated with the first sub-frame pixel value comprises a number of pixel values in the first component of the second image data that corresponds to a number of iterations used to generate the first and second sub-frames.

24. The system of claim 8 wherein the first and the second sub-frames comprise a plurality of sub-frame pixel values and a plurality of error values, wherein at least a first one of the plurality of sub-frame pixel values is calculated using the first component of the second image data, at least a second one of the plurality of sub-frame pixel values, and at least one of the plurality of error values, and wherein a region of influence associated with the first one of the plurality of sub-frame pixel values comprises a number of pixel values in the first component of the second image data that corresponds to a number of iterations used to generate the first and the second sub-frames.

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

means for receiving image data corresponding to the image, the image data comprising a first portion associated with a first component of a first color space and a second portion associated with a second component of the first color space;

means for generating first and second sub-frames from the first component of the image data with a first type of processing that includes convolving the first portion of the image data without convolving the second portion of the image data using an interpolating filter;

means for generating third and fourth sub-frames from the second component of the image data with a second type of image processing that differs from the first type of image processing;

means for converting the first and the third sub-frames into a fifth sub-frame in a second color space that differs from the first color space;

converting the second and the fourth sub-frames into a sixth sub-frame in the second color space; and

means for alternating between displaying the fifth sub-frame in a first position and displaying the sixth sub-frame in a second position spatially offset from the first position.

14. The system of claim 13 wherein the first color space comprises a YUV color space, wherein the first component of the first color space comprises a luminance component, and wherein the second component of the first color space comprises a chrominance component.

15. The system of claim 13 wherein the first color space comprises a YUV color space, and wherein the second color space comprises an RGB color space.

16. The system of claim 13 wherein the means for convolving the first portion of the image data further comprises means for convolving the first portion of the image data using an error filter to generate the first and the second sub-frame.

17. A computer-readable medium storing computer-executable instructions, which, when executed by a computer processing system, cause the system to perform a method of generating a sub-frame image which comprises a first plurality of sub-frames for display at spatially offset positions to generate the appearance of an image, comprising:

receiving first image data corresponding to the image, the first image data associated with a first color space;

converting the first image data to second image data associated with a second color space, the second image data comprising a first portion associated with a first component of the second color space and a second portion associated with a second component of the second color space;

generating a second plurality of sub-frames from the first component of the second image data with a first type of processing that includes convolving the first portion of the second image data without convolving the second portion of the second image data using an interpolating filter;

generating a third plurality of sub-frames from the second component of the second image data with a second type of image processing that differs from the first type of image processing;

converting a first one of the second plurality of sub-frames and a first one of the third plurality of sub-frames into a first one of the first plurality of sub-frames in the first color space; and

converting a second one of the second plurality of sub-frames and a second one of the third plurality of sub-frames into a second one of the first plurality of sub-frames in the first color space.

18. The computer-readable medium of claim 17 wherein the first color space comprises an RGB color space, wherein the second color space comprises a YUV color space, wherein the first component of the second color space comprises a luminance component, and wherein the second component of the second color space comprises a chrominance component.

19. The computer-readable medium of claim 17 storing computer-executable instructions, which, when executed by the computer processing system, cause the system to for perform the method farther comprising:

generating the second plurality of sub-frames from the first component of the second image data with the first type of processing that includes convolving the first portion of the second image data using an error filter.