IP Library › Granted Patent US 12,266,273
Granted Patent B2
US 12,266,273 · App. 18/049,065 · Granted Apr 1, 2025

Augmented reality platform for collaborative classrooms

Inventors: Karthik Ramani (West Lafayette, IN); Ana Villanueva Pérez (West Lafayette, IN)
Assignee: Purdue Research Foundation
G09B19/003G06T11/00G09B7/00H04L67/131
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Quick Facts
Patent No.
US 12,266,273
App. No.
18/049,065
Granted
Apr 1, 2025
Kind
B2
Abstract

An augmented reality system for developing and providing augmented reality learning experiences is disclosed. The augmented reality system advantageously combines augmented reality with the capabilities of cloud technology to provide a pull-based collaborative model, in which students and instructors collaborate by uploading, sharing, and downloading augmented reality learning content. The augmented reality system enables students to improve the augmented reality learning content by adding contributions to the original augmented reality learning content that was created by an instructor.

Claims (57)

1. A method for providing augmented reality content as a second user performs a task in a real-world workspace, the method comprising:

downloading, with a processor, first augmented reality content from a remote server and storing, in a memory, the first augmented reality content, the first augmented reality content defining a plurality of steps of the task and including at least one first graphical element associated with each of the plurality of steps of the task, the first augmented reality content having been generated by a first user;

displaying, on a display screen, a graphical user interface including, superimposed on images of the real-world workspace, the at least one first graphical element that is associated with a step of the plurality of steps that is currently being performed by the second user;

generating, with the processor, second augmented reality content based on inputs received from the second user via the graphical user interface, the second augmented reality content including at least one second graphical element associated with a respective step of the plurality of steps; and

uploading, with the processor, the second augmented reality content to the remote server,

wherein, subject to an approval by the first user, the first augmented reality content stored at the remote server is updated to incorporate the at least one second graphical element associated with the respective step of the plurality of steps.

2. The method according to claim 1 , the displaying further comprising:

detecting a ground surface of the real-world workspace;

detecting a marking on at least one real-world component in the real-world workspace; and

overlaying the at least one first graphical element within the graphical user interface depending on the detected ground surface and the detected marking.

3. The method according to claim 1 , wherein the at least one first graphical element is three-dimensional model of at least one corresponding real-world component, the overlaying further comprising:

overlaying the three-dimensional model upon the at least one corresponding component in the real-world workspace.

4. The method according to claim 3 , the overlaying further comprising:

adjusting at least one of a size and a position of the three-dimensional model based on inputs received from the second user via the graphical user interface.

5. The method according to claim 1 , the least one first graphical element associated with a respective step of the plurality of steps of the task including at least one of (i) a text annotation having a text string, (ii) a drawing annotation having virtual markings, (iii) an image, and (iv) a video, the displaying the graphical user interface further comprising:

displaying, on the display screen, as the second user performs the respective step, the at least one of (i) the text annotation, (ii) a drawing annotation, (iii) the image, and (iv) the video, superimposed on the images of the real-world workspace.

6. The method according to claim 1 further comprising:

downloading, with the processor, first question data from a remote server, the first question data including at least one of (i) a text string, (ii) an image, (iii) a video, and (iv) a virtual markings indicating a question from a third user and being associated with a respective step of the plurality of steps.

7. The method according to claim 6 , wherein the second augmented reality content includes at least one graphical element associated with the respective step of the plurality of steps and indicates an answer to the question from the third user.

8. The method according to claim 1 further comprising:

generating, with the processor, second question data based on inputs received from the second user via the graphical user interface, the second question data including at least one of (i) a text string, (ii) an image, (iii) a video, and (iv) a virtual markings indicating a question from the second user and being associated with a step of the plurality of steps; and

uploading, with the processor, the second question data to a remote server.

9. The method according to claim 1 , wherein, subject to an approval by the first user, the first augmented reality content stored at the remote server is updated to incorporate the at least one second graphical element associated with the respective step of the plurality of steps.

10. The method according to claim 1 , wherein:

the task is an assembly task in which the second user assembles a plurality of components in the real-world workspace;

the first augmented reality content including a plurality of three-dimensional models that represent the plurality of components, the first augmented reality content including, for each respective step in the plurality of steps, a defined spatial arrangement of the plurality of three-dimensional models representing an expected state of progress of the assembly task at the respective step; and

the graphical user interface includes the plurality of three-dimensional models visually arranged according to the defined spatial arrangement for the step of the plurality of steps that is currently being performed by the second user.

11. The method according to claim 10 further comprising:

receiving, via the graphical user interface, user inputs from the second user that indicate a step of the plurality of steps that is currently being performed by the second user.

12. A method for generating augmented reality content to be provided during performance of a task in a real-world workspace, the method comprising:

displaying, on a display screen, a graphical user interface including a virtual representation of the real-world workspace;

generating, with a processor, first augmented reality content based on inputs received from a first user via the graphical user interface, the first augmented reality content defining a plurality of steps of the task and including at least one first graphical element associated with each of the plurality of steps of the task, the at least one first graphical element being defined by the first user via the inputs;

uploading, with the processor, the first augmented reality content to a remote server;

downloading, with the processor, second augmented reality content from the remote server, the second augmented reality content including at least one second graphical element associated with a respective step of the plurality of steps, the second augmented reality content having been generated by a second user;

displaying, on the display screen, the at least one second graphical element of the second augmented reality content;

updating, with the processor, the first augmented reality content to incorporate the at least one second graphical element associated with the respective step of the plurality of steps, in response to the first user input approving that the at least one second graphical element should be incorporated with the first augmented reality content; and

uploading, with the processor, the updated first augmented reality content to the remote server.

13. The method according to claim 12 , wherein the task is an assembly task in which the second user assembles a plurality of components in the real-world workspace, the generating the first augmented reality content further comprising:

receiving, with the processor, user inputs via the graphical user interface to, for each respective step in the plurality of steps, manipulate and define a spatial arrangement of a plurality of three-dimensional models of the plurality of components within the virtual representation of the real-world workspace so as to represent an expected state of progress of the assembly task at the respective step,

wherein the first augmented reality content includes, for each step in the plurality of steps, the spatial arrangement of the three-dimensional models of the components within the virtual representation of the real-world workspace.

14. The method according to claim 13 , the generating the first augmented reality content further comprising:

receiving, with the processor, user inputs via the graphical user interface to select a first three-dimensional model of the plurality of three-dimensional models and a second three-dimensional model of the plurality of three-dimensional models; and

automatically generating, with the processor, a three-dimensional animation in which the first three-dimensional model moves along a path toward the second three-dimensional model,

wherein the first augmented reality content includes the animation.

15. The method according to claim 14 further comprising:

displaying, on the display screen, an animated preview of the three-dimensional animation in response to a user input received via the graphical user interface.

16. The method according to claim 12 , the generating the first augmented reality content further comprising:

generating, with the processor, based on inputs received from the first user via the graphical user interface, at least one of (i) a text annotation having a text string to be provided in association with a step of the plurality of steps and (ii) a drawing annotation having virtual markings to be superimposed on images of the real-world workspace in association with a step of the plurality of steps.

17. The method according to claim 12 , the generating the first augmented reality content further comprising at least one of:

capturing, with a camera, at least one of (i) an image and (ii) a video that is to be provided in association with a step of the plurality of steps; and

receiving, with the processor, user inputs via the graphical user interface, the user inputs selecting at least one of (i) an image and (ii) a video stored in a memory that is to be provided in association with a step of the plurality of steps.

18. The method according to claim 12 further comprising:

downloading, with the processor, second augmented reality content from the remote server, the second augmented reality content including at least one second graphical element associated with a respective step of the plurality of steps, the second augmented reality content having been generated by the second user; and

displaying, on the display screen, the at least one second graphical element of the second augmented reality content.

19. The method according to claim 18 further comprising:

updating, with the processor, the first augmented reality content to incorporate the at least one second graphical element associated with the respective step of the plurality of steps, in response to the first user input approving that the at least one second graphical element should be incorporated with the first augmented reality content; and

uploading, with the processor, the updated first augmented reality content to the remote server.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2025
From: RAMANI, KARTHIK; VILLANUEVA PÉREZ, ANA
To: PURDUE RESEARCH FOUNDATION
Reel/Frame 070710/0375 →
Continuity (4)
Continuation 16698347 · Nov 27, 2019
Provisional Application 62927683 · Oct 30, 2019
Provisional Application 62772416 · Nov 28, 2018
Related Publication 20230062951A1 · Mar 2, 2023
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