RENDERING ADJUSTMENTS TO AUTOCOMPENSATE FOR USERS WITH OCULAR ABNORMALITIES

• US 20120262477A1
• Filed: 04/18/2011
• Published: 10/18/2012
• Est. Priority Date: 04/18/2011
• Status: Active Grant

• Current Assignee: Brian K. Buchheit
• Original Assignee: Brian K. Buchheit
• Inventors: BUCHHEIT, BRIAN K.
• Granted Patent: US 8,605,082 B2
• Time in Patent Office: Days
• US Class Current: 345/619
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/032 Devices for presenting test symbols or characters, e.g. test chart projectors A61B3/036 takes precedence
• CPC Class Codes: G02C 7/02 Lenses; Lens systems ; Methods of designing lenses
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G06T 3/00 Geometric image transformations in the plane of the image
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• 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

Abstract

A digital screen rendering resolution adjustment can allow users who are conventionally dependent upon corrective lenses to view the digital screen to, after the resolution adjustment, view the contents of this screen with 20×20 vision (considered normal vision), without the use of these corrective lenses. A linear algebraic transform (performing essentially the inverse of the Lensmaker'"'"'s Equation) can be applied and enact matrix manipulation that when rendering the graphical display to autocompensate for a viewer'"'"'s visual abnormalities, can result in a distorted screen that is equivalent to the inverse of a corrective lens prescription. A screen rendering customization to autocompensate for a user'"'"'s visual impairment can be applied for each eye in 3D capable devices due to the inherent nature of 3D to display separate images per eye. A unique algebraic transform matrix manipulation can be performed for each of the two images and can provide a more exact corrective lens prescription rendering simulation than for single image rendering for a display.

Claims

1. A computer program product for rendering adjustments to images presented on a display, the computer program product comprising a computer readable storage medium having computer usable program code embodied therewith, the computer usable program code comprising:

a linear algebraic transform for matrix manipulation in rendering images to be displayed on a digital screen for electronic consumer devices, said linear algebraic transform comprising a plurality of user-selectable or user provided options, each of the user-selectable or user provided options being associated with a measure of magnitude of the transform desired for various components of the linear algebraic transform, wherein the user-selectable or user provided options comprise user-specific measures of visual abnormalities.

2. The computer program product of claim 1, wherein said linear algebraic transform being applied to images rendered on a display allows said user to view the digital display in 20×

20 vision without the user'"'"'s corrective lenses.

3. The computer program product of claim 1, wherein said linear algebraic transform being applied to images rendered on a display simulated light coming off the digital screen being bent as it would be by corrective lenses to adjust for said user'"'"'s focal point.

4. The computer program product of claim 1, wherein said electronic consumer device is one of a desktop, laptop, television, tablet, smartphone, digital media player or GPS unit.

5. The computer program product of claim 1 further comprising:

a distance sensor and accompanying software module distance detector configured to detect user distance from the display onto which images are being rendered, wherein upon sensing an increased distance between said user and said display the algebraic transform can be modified to include magnification parameters to magnify said images or partial components of said images being displayed to compensate for said increased distance.

6. A method for adjusting a visual display comprising:

recording information for an ocular abnormality of a human in a non-transitory storage medium, wherein said information defines values for a manner in which eyesight of the human varies from an eyesight norm of a general baseline human population;

establishing a digital signal processing algorithm for adjusting visual media for presentation on an electronic visual display to the ocular visual abnormality, wherein the media before adjustment is configured for the eyesight norm of the general baseline human population;

before presenting the visual media on the electronic display, applying the digital signal processing algorithm to the visual media, which results in an adaptation of the visual media in accordance with the information so that the human with the ocular abnormality is able to view the visual media more clearly; and

presenting the visual media after applying the digital signal processing algorithm on the electronic display.

7. The method of claim 6, wherein the visual media is a video.

8. The method of claim 6, wherein the visual media is a graphic.

9. The method of claim 6, wherein the digital signal processing algorithm is an inverse of a Lensmaker'"'"'s Equation, and wherein the information defines a Lensmaker'"'"'s Equation.

10. The method of claim 6, wherein the input is a prescription used to make glasses or contacts for the human with the ocular abnormality.

11. The method of claim 6, further comprising:

presenting test visual content on the electronic display in various manners, which are adjustments for different deviations from the eyesight norm;

receiving user input from the human to the presenting of the test visual content that indicates content most easily seen by the human;

generating the information on the ocular abnormality using the user input to the test visual content.

12. A computer program product comprising:

a pre-presentation module, comprising program instructions stored on a non-transitory storage medium, said program instructions executable upon hardware of the computing device to;

adjust a default display of visual content to an eyesight condition of a human viewer, where the eyesight condition varies from the eyesight norm of a general baseline population, where the default display of the visual content is for the eyesight norm.

13. The computing device of claim 12, further comprising:

a storage medium comprising data for an eyeglass prescription of the human viewer, wherein the pre-presentation model adjusts the default display of the visual content by the inverse of the eyeglass prescription.

14. The computing device of claim 12, wherein the computing device is a television, and wherein the visual content is encoded in an input signal received by the television.

15. The computing device of claim 12, wherein the computing device is a stand-alone device, wherein the visual content is encoded in an input signal received by the stand-alone device from an external component, wherein the adjusted default display is encoded in an output signal sent by the stand-alone device to a second external component, wherein the adjusting of the default display occurs in real time.

16. The computing device of claim 12, wherein the computing device is a mobile electronic device with an embedded display screen , wherein the pre-presentation module adjusts all visual output to the embedded display screen for the eyesight condition of the human viewer.

17. The computing device of claim 16, wherein the computing device is at least one of a mobile telephone, an ebook reader, and a personal video player.

18. The computing device of claim 12, wherein the computing device is a personal computer.

19. The computing device of claim 18, wherein the pre-presentation module is a software program stored on a persistent storage medium of a personal computer that a processor of the personal computer executes, to ensure a display screen connected to the personal computer is adjusted for the eyesight condition of the human viewer, wherein different human viewers have different profiles established to ensure the pre-presentation module makes adjustments appropriate for each of the different humans, depending on who is currently logged into the personal computer.

20. The computing device of claim 18, wherein the pre-presentation module is implemented within firmware of a video card of the personal computer.