SYSTEMS AND METHODS FOR RENDERING VIRTUAL TRY-ON PRODUCTS

• US 20130314410A1
• Filed: 02/22/2013
• Published: 11/28/2013
• Est. Priority Date: 05/23/2012
• Status: Active Grant

• Current Assignee: Luxottica Retail North America Incorporated (EssilorLuxottica SA)
• Original Assignee: 1-800 Contacts Incorporated
• Inventors: Gravois, Adam, Engle, Ryan
• Granted Patent: US 9,378,584 B2
• Time in Patent Office: Days
• US Class Current: 345/420
• CPC Class Codes: G02C 13/003 Measuring during assembly or fitting of spectacles
• CPC Class Codes: G06T 15/04 Texture mapping
• CPC Class Codes: G06T 15/08 Volume rendering
• CPC Class Codes: G06T 17/00 Three dimensional [3D] modelling, e.g. data description of 3D objects
• CPC Class Codes: G06T 17/30 Polynomial surface description
• CPC Class Codes: G06T 19/00 Manipulating 3D models or images for computer graphics
• CPC Class Codes: G06T 19/006 Mixed reality object pose determination, tracking or camera calibration for mixed reality G06T7/00
• CPC Class Codes: G06T 2200/04 involving 3D image data
• CPC Class Codes: G06T 2210/16 Cloth
• CPC Class Codes: G06T 2210/61 Scene description
• CPC Class Codes: G06V 40/16 Human faces, e.g. facial parts, sketches or expressions

Abstract

A computer-implemented method for rendering virtual try-on products is described. A first render viewpoint is selected of a virtual 3-D space that includes a 3-D model of at least a portion of a user generated from an image of the user and a 3-D polygon mesh of an object. Polygons of the 3-D polygon mesh are designated as backwards-facing polygons and front-facing polygon in relation to the first render viewpoint. A shadow texture map of the object is applied to the 3-D model of the user. A transparency texture map of the object is applied to the backwards-facing polygon of the 3-D polygon mesh of the object. A first color texture map of the object is applied to the result of the application of the transparency texture map to the backwards-facing polygon. The virtual 3-D space is rendered at the first render viewpoint.

Claims

1. A computer-implemented method for rendering virtual try-on products, the method comprising:

selecting a first render viewpoint of a virtual 3-D space, wherein the virtual 3-D space comprises a 3-D model of at least a portion of a user generated from an image of the user and a 3-D polygon mesh of an object;

designating a first polygon of the 3-D polygon mesh of the object as a backwards-facing polygon in relation to the first render viewpoint;

designating a second polygon of the 3-D polygon mesh of the object as a front-facing polygon in relation to the first render viewpoint;

applying a shadow texture map of the object to the 3-D model of the user;

applying a transparency texture map of the object to the backwards-facing polygon of the 3-D polygon mesh of the object;

applying a first color texture map of the object to the result of the application of the transparency texture map to the backwards-facing polygon; and

rendering the virtual 3-D space at the first render viewpoint.

2. The method of claim 1, further comprising:

applying the transparency texture map of the object to the front-facing polygon of the 3-D polygon mesh of the object; and

applying the first color texture map of the object to the result of the application of the transparency texture map to the front-facing polygon.

3. The method of claim 1, further comprising:

placing at least a portion of the 3-D polygon mesh of the object within a predetermined distance of at least one point on the 3-D model of the user, wherein the application of the shadow texture map is based on the position of the 3-D polygon mesh of the object in relation to the 3-D model of the user.

4. The method of claim 1, further comprising:

detecting a shadow value of the object from a scan of the object; and

creating the shadow texture map from the detected shadow value.

5. The method of claim 4, further comprising:

mapping a 2-D coordinate of the shadow texture map to a point on the 3-D model of the user; and

multiplying a value of the point on the 3-D model of the user by the shadow value.

6. The method of claim 1, further comprising:

detecting a transparency value of the object from a scan of the object; and

creating the transparency texture map from the detected transparency value.

7. The method of claim 6, further comprising:

mapping a 2-D coordinate of the transparency texture map to a point on the 3-D model of the user and the 3-D polygon mesh of the object; and

multiplying a value of the point on the 3-D model of the user by the transparency value.

8. The method of claim 7, further comprising:

selecting a first scanning angle of a scan of an object, wherein the first scanning angle corresponds to the first render viewpoint;

detecting a first color value of the object at the first scanning angle;

creating the first color texture map from the detected first color value.

9. The method of claim 8, further comprising:

mapping a 2-D coordinate of the first color texture map to the point on the 3-D model of the user and the 3-D polygon mesh of the object; and

multiplying the resultant value of the point on the 3-D model of the user and the 3-D polygon mesh of the object by the first color value.

10. The method of claim 1, further comprising:

selecting a second render viewpoint of the virtual 3-D space.

11. The method of claim 10, further comprising:

selecting a second scanning angle of a scan of an object, wherein the second scanning angle corresponds to the second render viewpoint;

detecting a second color value of the object at the second scanning angle; and

creating a second color texture map from the detected second color value.

12. The method of claim 10, further comprising:

applying the shadow texture map of the object to the 3-D model of the user at the second render viewpoint;

applying the transparency texture map of the object to the backwards-facing polygon of the 3-D polygon mesh of the object at the second render viewpoint; and

applying the second color texture map of the object to the result of the application of the transparency texture map to the backwards-facing polygon at the second render viewpoint.

13. The method of claim 10, further comprising:

applying the transparency texture map of the object to the front-facing polygon of the 3-D polygon mesh of the object at the second render viewpoint; and

applying the second color texture map of the object to the result of the application of the transparency texture map to the front-facing polygon at the second render viewpoint;

rendering the virtual 3-D space at the second render viewpoint.

14. The method of claim 1, further comprising:

dividing the 3-D polygon mesh of the object into two or more portions;

determining an order to the portions of the divided 3-D polygon mesh of the object from furthest portion to closest portion relative to the determined render viewpoint of the virtual 3-D space;

rendering the 3-D polygon mesh of the object from the furthest portion to the closest portion.

15. The method of claim 1, further comprising:

determining whether a portion of the 3-D polygon mesh of the object is visible in relation to the 3-D model of the user based on the determined render viewpoint, wherein rendering the scene comprises rendering the scene based on a visible portion of the 3-D polygon mesh of the object.

16. The method of claim 1, further comprising:

determining a first level and a second level of blur accuracy;

determining a first level and a second level of blur intensity; and

applying the first level of blur accuracy at the first level of blur intensity to the rendered depiction of the object.

17. The method of claim 16, further comprising:

detecting an edge of the rendered depiction of the object; and

applying the first level of blur accuracy at the second level of blur intensity to the rendered depiction of the object.

18. The method of claim 16, further comprising:

upon receiving a user input to adjust the render viewpoint, applying the second level of blur accuracy to the rendered depiction of the object.

19. A computing device configured to render virtual try-on products, comprising:

a processor;

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable by the processor to;

select a first render viewpoint of a virtual 3-D space, wherein the virtual 3-D space comprises a 3-D model of at least a portion of a user generated from an image of the user and a 3-D polygon mesh of an object;

designate a first polygon of the 3-D polygon mesh of the object as a backwards-facing polygon in relation to the first render viewpoint;

designate a second polygon of the 3-D polygon mesh of the object as a front-facing polygon in relation to the first render viewpoint;

apply a shadow texture map of the object to the 3-D model of the user;

apply a transparency texture map of the object to the backwards-facing polygon of the 3-D polygon mesh of the object;

apply a first color texture map of the object to the result of the application of the transparency texture map to the backwards-facing polygon; and

render the virtual 3-D space at the first render viewpoint.

20. The computing device of claim 19, wherein the instructions are executable by the processor to:

apply the transparency texture map of the object to the front-facing polygon of the 3-D polygon mesh of the object; and

apply the first color texture map of the object to the result of the application of the transparency texture map to the front-facing polygon.

21. The computing device of claim 19, wherein the instructions are executable by the processor to:

detect a shadow value of the object from a scan of the object; and

create the shadow texture map from the detected shadow value.

22. The computing device of claim 21, wherein the instructions are executable by the processor to:

map a 2-D coordinate of the shadow texture map to a point on the 3-D model of the user; and

multiply a value of the point on the 3-D model of the user by the shadow value.

23. The computing device of claim 19, wherein, upon determining the first application is a trusted application, the instructions are executable by the processor to:

detect a transparency value of the object from a scan of the object; and

create the transparency texture map from the detected transparency value.

24. The computing device of claim 23, wherein the instructions are executable by the processor to:

map a 2-D coordinate of the transparency texture map to a point on the 3-D model of the user and the 3-D polygon mesh of the object; and

multiply a value of the point on the 3-D model of the user by the transparency value.

25. The computing device of claim 24, wherein the instructions are executable by the processor to:

select a first scanning angle of a scan of an object where the scanning angle corresponds to the first render viewpoint;

detect a first color value of the object at the first scanning angle;

create the first color texture map from the detected first color value.

26. The computing device of claim 25, wherein the instructions are executable by the processor to:

map a 2-D coordinate of the first color texture map to the point on the 3-D model of the user and the 3-D polygon mesh of the object; and

multiply the resultant value of the point on the 3-D model of the user and the 3-D polygon mesh of the object by the first color value.

27. The computing device of claim 19, wherein the instructions are executable by the processor to:

select a second render viewpoint of the virtual 3-D space.

28. The computing device of claim 27, wherein the instructions are executable by the processor to:

select a second scanning angle of a scan of an object, wherein the second scanning angle corresponds to the second render viewpoint;

detect a second color value of the object at the second scanning angle; and

create a second color texture map from the detected second color value.

29. The computing device of claim 27, wherein the instructions are executable by the processor to:

apply the shadow texture map of the object to the 3-D model of the user at the second render viewpoint;

apply the transparency texture map of the object to the backwards-facing polygon of the 3-D polygon mesh of the object at the second render viewpoint; and

apply the second color texture map of the object to the result of the application of the transparency texture map to the backwards-facing polygon at the second render viewpoint.

30. The computing device of claim 27, wherein the instructions are executable by the processor to:

apply the transparency texture map of the object to the front-facing polygon of the 3-D polygon mesh of the object at the second render viewpoint;

apply the second color texture map of the object to the result of the application of the transparency texture map to the front-facing polygon at the second render viewpoint; and

render the virtual 3-D space at the second render viewpoint.

31. The computing device of claim 19, wherein the instructions are executable by the processor to:

divide the 3-D polygon mesh of the object into two or more portions;

determine an order to the portions of the divided 3-D polygon mesh of the object from furthest portion to closest portion relative to the determined render viewpoint of the virtual 3-D space;

render the 3-D polygon mesh of the object from the furthest portion to the closest portion.

32. The computing device of claim 19, wherein the instructions are executable by the processor to:

determine whether a portion of the 3-D polygon mesh of the object is visible in relation to the 3-D model of the user based on the determined render viewpoint, wherein the instruction to render the scene comprises an instruction to render the scene based on a visible portion of the 3-D polygon mesh of the object.

33. The computing device of claim 19, wherein the instructions are executable by the processor to:

determine a first level and a second level of blur accuracy;

determine a first level and a second level of blur intensity; and

apply the first level of blur accuracy at the first level of blur intensity to the rendered depiction of the object.

34. The computing device of claim 33, wherein the instructions are executable by the processor to:

detect an edge of the rendered depiction of the object; and

apply the first level of blur accuracy at the second level of blur intensity to the rendered depiction of the object.

35. The computing device of claim 33, wherein the instructions are executable by the processor to:

upon receiving a user input to adjust the render viewpoint, apply the second level of blur accuracy to the rendered depiction of the object.

36. A computer-program product for rendering virtual try-on products, the computer-program product comprising a non-transitory computer-readable medium storing instructions thereon, the instructions being executable by a processor to:

select a first render viewpoint of a virtual 3-D space, wherein the virtual 3-D space comprises a 3-D model of at least a portion of a user generated from an image of the user and a 3-D polygon mesh of an object;

designate a first polygon of the 3-D polygon mesh of the object as a backwards-facing polygon in relation to the first render viewpoint;

designate a second polygon of the 3-D polygon mesh of the object as a front-facing polygon in relation to the first render viewpoint;

apply a shadow texture map of the object to the 3-D model of the user;

apply a transparency texture map of the object to the backwards-facing polygon of the 3-D polygon mesh of the object;

apply a first color texture map of the object to the result of the application of the transparency texture map to the backwards-facing polygon;

apply the transparency texture map of the object to the front-facing polygon of the 3-D polygon mesh of the object; and

apply the first color texture map of the object to the result of the application of the transparency texture map to the front-facing polygon

render the virtual 3-D space at the first render viewpoint.

37. The computer-program product of claim 36, wherein the instructions are executable by the processor to:

select a second render viewpoint of the virtual 3-D space;

select a first scanning angle of a scan of an object where the scanning angle corresponds to the first render viewpoint;

detect a second color value of the object from a scan of the object;

create a second color texture map from the detected second color value, wherein the second color texture map corresponds to the second render viewpoint;

apply the shadow texture map of the object to the 3-D model of the user at the second render viewpoint;

apply the transparency texture map of the object to the backwards-facing polygon of the 3-D polygon mesh of the object at the second render viewpoint;

apply the second color texture map of the object to the result of the application of the transparency texture map to the backwards-facing polygon at the second render viewpoint;

apply the transparency texture map of the object to the front-facing polygon of the 3-D polygon mesh of the object at the second render viewpoint; and

apply the second color texture map of the object to the result of the application of the transparency texture map to the front-facing polygon at the second render viewpoint; and

render the virtual 3-D space at the second render viewpoint.

38. The computer-program product of claim 36, wherein the instructions are executable by the processor to:

determine a first level and a second level of blur accuracy;

determine a first level and a second level of blur intensity; and

apply the first level of blur accuracy at the first level of blur intensity to the rendered depiction of the object.

39. The computer-program product of claim 38, wherein the instructions are executable by the processor to:

detect an edge of the rendered depiction of the object; and

apply the first level of blur accuracy at the second level of blur intensity to the rendered depiction of the object.

40. The computer-program product of claim 38, wherein the instructions are executable by the processor to:

upon receiving a user input to adjust the render viewpoint, apply the second level of blur accuracy to the rendered depiction of the object.