VISION CORRECTION THROUGH GRAPHICS PROCESSING

• US 20160180503A1
• Filed: 12/18/2014
• Published: 06/23/2016
• Est. Priority Date: 12/18/2014
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Frascati, Christopher Paul, Seetharamaiah, Avinash, Balci, Murat
• Granted Patent: US 9,684,950 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 3/02 Subjective types, i.e. testing apparatus requiring the active assistance of the patient
• CPC Class Codes: A61B 3/028 for testing visual acuity; for determination of refraction, e.g. phoropters
• CPC Class Codes: G06T 2207/10004 Still image; Photographic image
• CPC Class Codes: G06T 2207/20092 Interactive image processing based on input by user
• CPC Class Codes: G06T 3/18 Image warping, e.g. rearranging pixels individually
• CPC Class Codes: G06T 5/70 Denoising; Smoothing
• CPC Class Codes: G09G 2320/0271 Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
• CPC Class Codes: G09G 2320/066 for control of contrast
• CPC Class Codes: G09G 2320/08 Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 5/36 characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory

Abstract

An apparatus configured for graphics processing includes a memory configured to store graphics data, and one or more processors in communication with the memory, the one or more processors configured to output, for display, a plurality of test graphics images, receive input indicative of a perception of a user of the computing device of at least one test graphics image from the plurality of test graphics images, determine at least one parameter modification value and generate a corrected graphics image based at least in part on the at least one parameter modification value.

Claims

1. A method of graphics processing comprising:

outputting for display, by a computing device, a plurality of test graphics images;

receiving, by the computing device, input indicative of a perception of a user of the computing device of at least one test graphics image from the plurality of test graphics images;

determining, by the computing device and based at least in part on the received input, at least one parameter modification value; and

generating, by the computing device, a corrected graphics image based at least in part on the at least one parameter modification value.

2. The method of claim 1, wherein outputting the plurality of test graphics images comprises outputting test graphics images that comprise a plurality of test objects.

3. The method of claim 2, wherein receiving the input indicative of the perception of the user of the at least one test graphics image comprises receiving input indicating how centered the user perceives the plurality of test objects to be.

4. The method of claim 2, wherein receiving the input indicative of the perception of the user of the at least one test graphics image comprises receiving input indicating how in focus the user perceives the plurality of test objects to be.

5. The method of claim 2, wherein receiving the input indicative of the perception of the user of the at least one test graphics image comprises receiving input indicating how proportioned the user perceives the plurality of test objects to be.

6. The method of claim 2, wherein the plurality of test objects comprises a plurality of concentric circle objects.

7. The method of claim 1, wherein the at least one parameter modification value comprises at least one of a multiplication coefficient or an addition constant.

8. The method of claim 1, wherein:

receiving the input indicative of the perception of the user of the at least one test graphics image comprises;

receiving first input indicative of a perception of the user of a first region displaying the at least one test graphics image, and

receiving second input indicative of a perception of the user of a second region displaying the at least one test graphics image;

determining the at least one parameter modification value comprises;

determining at least one first parameter modification value that corresponds to the first region, and

determining at least one second parameter modification value that corresponds to the second region; and

generating the corrected graphics image comprises;

generating a first portion of the corrected graphics image based at least in part on the at least one first parameter modification value, the first portion of the corrected graphics image corresponding to the first region, and

generating a second portion of the corrected graphics image based at least in part on the at least one second parameter modification value, the second portion of the corrected graphics image corresponding to the second region.

9. The method of claim 1, wherein generating the corrected graphics image comprises post processing a rendered graphics image using a parameter value determined based at least in part on the at least one parameter modification value to generate the corrected graphics image.

10. The method of claim 9, wherein post processing the rendered graphics image comprises:

post processing the rendered graphics image using at least one of;

a pixel shader, or a fragment shader to apply at least one of a blurring filter or a deconvolution filter to the rendered graphics image.

11. The method of claim 1, wherein generating the corrected graphics image comprises:

rendering the corrected graphics image by applying a modified transformation matrix using at least one of;

a vertex shader, a pixel shader, or a fragment shader, the modified transformation matrix being determined based at least in part on the at least one parameter modification value.

12. The method of claim 11, wherein the modified transformation matrix comprises at least one of:

a modified Model matrix, a modified View matrix, or a modified Projection matrix.

13. The method of claim 11 wherein the at least one parameter modification value comprises at least one of:

a translation parameter modification value, a rotation parameter modification value, or a scaling parameter modification value.

14. The method of claim 1, wherein:

the at least one parameter modification value comprises a plurality of parameter modification values;

a first parameter modification value from the plurality of parameter modification values corresponds to a first eye of a user of the computing device; and

a second parameter modification value from the plurality of parameter modification values corresponding to a second eye of the user, the second eye being different from the first eye.

15. An apparatus configured for graphics processing comprising:

a memory configured to store graphics data; and

one or more processors in communication with the memory, the one or more processors configured to;

output, for display, a plurality of test graphics images;

receive input indicative of a perception of a user of the computing device of at least one test graphics image from the plurality of test graphics images;

determine, based at least in part on the received input, at least one parameter modification value; and

generate a corrected graphics image based at least in part on the at least one parameter modification value.

16. The apparatus of claim 15, wherein the one or more processors are further configured to output test graphics images that comprise a plurality of test objects.

17. The apparatus of claim 16, wherein the one or more processors are further configured to receive input indicating how centered the user perceives the plurality of test objects to be.

18. The apparatus of claim 16, wherein the one or more processors are further configured to receive input indicating how in focus the user perceives the plurality of test objects to be.

19. The apparatus of claim 16, wherein the one or more processors are further configured to receive input indicating how proportioned the user perceives the plurality of test objects to be.

20. The apparatus of claim 16, wherein the plurality of test objects comprises a plurality of concentric circle objects.

21. The apparatus of claim 15, wherein the at least one parameter modification value comprises at least one of a multiplication coefficient or an addition constant.

22. The apparatus of claim 15, wherein the one or more processors are further configured to:

receive first input indicative of a perception of the user of a first region displaying the at least one test graphics image;

receive second input indicative of a perception of the user of a second region displaying the at least one test graphics image;

determine at least one first parameter modification value that corresponds to the first region;

determine at least one second parameter modification value that corresponds to the second region;

generate a first portion of the corrected graphics image based at least in part on the at least one first parameter modification value, the first portion of the corrected graphics image corresponding to the first region; and

generate a second portion of the corrected graphics image based at least in part on the at least one second parameter modification value, the second portion of the corrected graphics image corresponding to the second region.

23. The apparatus of claim 15, wherein the one or more processors are further configured to:

post process a rendered graphics image using a parameter value determined based at least in part on the at least one parameter modification value to generate the corrected graphics image.

24. The apparatus of claim 23, wherein the one or more processors are further configured to:

post process the rendered graphics image using at least one of;

a pixel shader, or a fragment shader to apply at least one of a blurring filter or a deconvolution filter to the rendered graphics image.

25. The apparatus of claim 15, wherein the one or more processors are further configured to:

render the corrected graphics image by applying a modified transformation matrix using at least one of;

a vertex shader, a pixel shader, or a fragment shader, the modified transformation matrix being determined based at least in part on the at least one parameter modification value.

26. The apparatus of claim 25, wherein the modified transformation matrix comprises at least one of:

a modified Model matrix, a modified View matrix, or a modified Projection matrix.

27. The apparatus of claim 25, wherein the at least one parameter modification value comprises at least one of:

a translation parameter modification value, a rotation parameter modification value, or a scaling parameter modification value.

28. The apparatus of claim 15, wherein:

the at least one parameter modification value comprises a plurality of parameter modification values;

a first parameter modification value from the plurality of parameter modification values corresponds to a first eye of a user of the computing device; and

a second parameter modification value from the plurality of parameter modification values corresponding to a second eye of the user, the second eye being different from the first eye.

29. A computer-readable storage medium storing instructions that, when executed, cause one or more processors of a device configured for graphics processing to:

output, for display, a plurality of test graphics images;

receive input indicative of a perception of a user of the computing device of at least one test graphics image from the plurality of test graphics images;

determine, based at least in part on the received input, at least one user parameter modification value; and

generate a corrected graphics image based at least in part on the at least one user eyesight correction value.

30. An apparatus configured to process graphics, the apparatus comprising:

means for outputting, for display, a plurality of test graphics images;

means for receiving input indicative of a perception of a user of the computing device of at least one test graphics image from the plurality of test graphics images;

means for determining, based at least in part on the received input, at least one parameter modification value; and

means for generating a corrected graphics image based at least in part on the at least one parameter modification value.