Methods and systems for modifying content of an electronic learning system for vision deficient users

Patent metadata

Field	Value
Publication number	US-10102763-B2
Application number	US-201414555834-A
Country	US
Kind code	B2
Filing date	Nov 28, 2014
Priority date	Nov 28, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A computer-implemented method for modifying one or more contents of an electronic learning system for a user impaired by a color vision deficiency. The method includes: generating a vision profile for the user, the vision profile indicating at least a type of the color vision deficiency, identifying, from the one or more contents, a content to be modified, the content including at least two portions formed of a first color and a second color, respectively, the first color being different from the second color but the first color being at least partially indistinguishable from the second color by the user due to the color vision deficiency, identifying a content transformation to be applied to the content based on the vision profile, the content transformation including one or more adjustments of the content to accommodate the color vision deficiency impairing the user; and applying the content transformation to the content.

First claim

We claim:

1. A computer-implemented method for modifying one or more contents of an electronic learning system for a user impaired by a colour vision deficiency, the method comprising:
generating, by a processor, a vision profile for the user, the vision profile indicating at least a type of the colour vision deficiency;
identifying, by a processor, from the one or more contents, a content to be modified, the content including at least two portions formed of a first colour and a second colour, respectively, the first colour being different from the second colour but the first colour being at least partially indistinguishable from the second colour by the user due to the colour vision deficiency, wherein identifying the content to be modified comprises determining an expected access date of the content to be modified and a relative priority of the content to be modified, and selecting the content to be modified based at least in part on one or more of the expected access date and the relative priority;
identifying, by a processor, a content transformation to be applied to the content based on the vision profile, the content transformation including one or more adjustments of the content to accommodate the colour vision deficiency impairing the user;
and applying, by a processor, the content transformation to the content.

2. The method of claim 1 , wherein identifying the content transformation to be applied to the content based on the vision profile comprises:
determining, from the vision profile, a severity level of the colour vision deficiency; and
identifying the one or more adjustments based on the severity level.

3. The method of claim 1 , wherein the one or more adjustments comprises one of (i) changing the first colour to a different colour, (ii) replacing the first colour with a pattern, and (iii) modifying the content.

4. A system for modifying one or more electronic contents for a user impaired by a colour vision deficiency, the one or more electronic contents being provided by an electronic learning system, the system comprising a processor configured to:
generate a vision profile for the user, the vision profile indicating at least a type of the colour vision deficiency;
identify, from the one or more contents, a content to be modified, the content including at least two portions formed of a first colour and a second colour, respectively, the first colour being different from the second colour but the first colour being at least partially indistinguishable from the second colour by the user due to the colour vision deficiency, wherein identifying the content to be modified comprises determining an expected access date of the content to be modified and a relative priority of the content to be modified, and selecting the content to be modified based at least in part on one or more of the expected access date and the relative priority;
identify a content transformation to be applied to the content based on the vision profile, the content transformation including one or more adjustments of the content to accommodate the colour vision deficiency impairing the user; and
apply the content transformation to the content.

5. The system of claim 4 , wherein the processor is configured to:
determine, from the vision profile, a severity level of the colour vision deficiency; and
identify the one or more adjustments based on the severity level.

6. The system of any one of claims 4 and 5 , wherein the one or more adjustments comprises one of (i) changing the first colour to a different colour, (ii) replacing the first colour with a pattern, and (iii) modifying the content.

7. A computer-implemented method for modifying one or more contents of an electronic learning system for a user, the method comprising:
generating, by a processor, a vision profile for the user, the vision profile indicating at least a vision deficiency impairing the user;
identifying, by a processor, from the one or more contents, a content to be modified, the content including at least two portions formed of a first colour and a second colour, respectively, the first colour being different from the second colour but the first colour being at least partially indistinguishable from the second colour by the user due to the colour vision deficiency, wherein identifying the content to be modified comprises determining an expected access date of the content to be modified and a relative priority of the content to be modified, and selecting the content to be modified based at least in part on one or more of the expected access date and the relative priority;
identifying, by a processor, a content transformation to be applied to a content of the one or more contents based on the vision profile, the content transformation including one or more adjustments of the content to accommodate the vision deficiency impairing the user;
and applying, by a processor, the content transformation to the content.

8. The method of claim 7 , wherein generating the vision profile for the user comprises:
providing, via a display, a vision test to the user; and
creating the vision profile based substantially on results of the vision test.

9. The method of claim 8 , wherein the vision test comprises at least one or more of a version of an Ishihara test and a version of a Farnsworth Lantern test.

10. The method of claim 7 , wherein identifying the content transformation to be applied to the content of the one or more contents based on the vision profile comprises:
determining, from the vision profile, the vision deficiency includes a colour vision deficiency; and
in response to determining the vision deficiency includes the colour vision deficiency, indicating the content transformation includes one of (i) changing at least one colour of the content to a different colour, (ii) replacing the at least one colour of the content with a pattern, and (iii) modifying the content.

11. The method of claim 10 , further comprises:
identifying, by a processor, from the one or more contents, the content to be modified, the content including two neighboring portions, each portion of the two neighboring portions being associated with a respective first and second colour, the first colour being different from the second colour but the first colour being at least partially indistinguishable from the second colour by the user due to the vision deficiency.

12. The method of claim 11 further comprises:
identifying, by a processor, a set of colours distinguishable by the user despite the vision deficiency;
and changing, by a processor, the first colour to a colour from the set of colours, the colour being different from the second colour.

13. The method of claim 11 further comprises replacing the first colour with a pattern.

14. The method of claim 10 further comprises:
determining, by a processor, from the vision profile, a severity level of the vision deficiency.

15. The method of claim 14 , wherein the severity level is selected from one of slightly deficient, moderately deficient, strongly deficient and absolutely deficient.

16. The method of claim 15 , further comprises:
in response to determining the severity level is absolutely deficient, indicating, by a processor, the content transformation includes replacing at least one colour of the content with a pattern.

Assignees

• Mihai Sebastian
• Brown Philip
• Jandard Chantal
• Cowan Mark
• D2L Corp

Inventors

• Mihai Sebastian
• Brown Philip
• Jandard Chantal
• Cowan Mark

Classifications

• G06T11/10

  Texturing; Colouring; Generation of textures or colours (retouching, inpainting or scratch removal G06T5/77) · CPC title

• G06F40/151

  Transformation · CPC title

• A61B3/066

  for testing colour vision · CPC title

• G09B7/00

  Electrically-operated teaching apparatus or devices working with questions and answers (mechanically operated G09B3/00; computing arrangements G06F) · CPC title

• G09B21/008

  using visual presentation of the information for the partially sighted · CPC title