System and method for resampling texture maps

• US 20040160453A1
• Filed: 02/13/2003
• Published: 08/19/2004
• Est. Priority Date: 02/13/2003
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Horton, Noah, Ritter, Bradford A.
• Granted Patent: US 7,030,884 B2
• Time in Patent Office: Days
• US Class Current: 345/582
• CPC Class Codes: G06T 11/40 Filling a planar surface by adding surface attributes, e.g. colour or texture

Abstract

A system for resampling texture maps in accordance with an exemplary embodiment of the present invention comprises memory and a texture map manager. The stores a first texture map defining a first texture, and the first texture map is based on an image of an object. The texture map manager is configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.

Claims

1. A system for resampling texture maps, comprising:

memory for storing a first texture map defining a first texture, the first texture having a discontinuous edge; and

a texture map manager configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, transforms the discontinuous edge into a continuous edge.

2. The system of claim 1, wherein the first texture map is based on an image of an object, and wherein resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.

3. The system of claim 1, wherein the texture map manager is configured to generate a second texture map based on resampling of the first texture map by the texture map manager, second texture map defining a second texture having the continuous edge.

4. The system of claim 3, wherein the second texture map defines a texture having the continuous edge, the texture map manager further configured to determine a value indicative of a distance that a texel of the second texture map is located from the continuous edge of the second texture and to mathematically combine the value with a value indicative of a separation distance between the continuous edge and another edge of the second texture.

5. The system of claim 4, wherein the texture map manager is configured to mathematically combine the values in order to determine the texel'"'"'s position within the second texture as a percentage of the separation distance.

6. The system of claim 3, wherein the first texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position, and wherein the second texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position.

7. The system of claim 6, wherein each of the luminosity equations comprises constants, wherein the texture mapping manager is configured to correlate a texel of the second texture map with a plurality of texels of the first texture map, and wherein the texture mapping manager is configured to interpolate luminosity equation constants of the plurality of texels in order to determine at least one luminosity equation constant of the second texture map texel.

8. A system for resampling texture maps, comprising:

memory for storing a first texture map defining a first texture, the first texture having opposing edges that are asymmetrical; and

a texture map manager configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, transforms the asymmetrical opposing edges into symmetrical opposing edges.

9. The system of claim 8, wherein the first texture map is based on an image of an object, and wherein resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.

10. The system of claim 8, wherein the symmetrical opposing edges are parallel.

11. The system of claim 8, wherein the texture map manager is configured to generate a second texture map based on resampling of the first texture map by the texture map manager, the second texture map defining a second texture having the symmetrical opposing edges.

12. The system of claim 11, wherein the texture map manager is configured to determine a value indicative of a distance that a texel of the second texture map is located from one of the opposing edges of the second texture and to mathematically combine the value with a value indicative of a separation distance between the opposing edges of the second texture.

13. The system of claim 12, wherein the texture map manager is configured to mathematically combine the values in order to determine the texel'"'"'s position within the second texture as a percentage of the separation distance.

14. The system of claim 11, wherein the first texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position, and wherein the second texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position.

15. The system of claim 14, wherein each of the luminosity equations comprises constants, wherein the texture mapping manager is configured to correlate a texel of the second texture map with a plurality of texels of the first texture map, and wherein the texture mapping manager is configured to interpolate luminosity equation constants of the plurality of texels in order to determine at least one constant of the second texture map texel.

16. A system for resampling texture maps, comprising:

memory for storing a first texture map defining a first texture, the first texture map based on an image of an object; and

a texture map manager configured to resample the first texture map such that resampling of the first texture map, by the texture map manager, compensates for a surface distortion of the object.

17. The system of claim 16, wherein the texture map manager is configured to generate a second texture map based on resampling of the first texture map by the texture map manager, the second texture map defining a second texture having opposing edges and lines of texels extending from one of the opposing edges to another of the opposing edges, the texture map manager, for each of the texel lines, configured to determine a first distance between opposing edges of the first texture and a second distance between the opposing edges of the second texture and to assign a luminosity value to a texel within the texel line based on the first and second distances.

18. The system of claim 17, wherein the first texture has a discontinuous edge, and wherein the texture map manager is configured to generate the second texture such that the second texture has a continuous edge in lieu of the discontinuous edge of the first texture.

19. The system of claim 17, wherein the first texture has opposing edges that are asymmetrical, and wherein the texture map manager is configured to generate the second texture such that the second texture has symmetrical opposing edges in lieu of the asymmetrical opposing edges of the first texture.

20. The system of claim 17, wherein the luminosity value represents a constant of a luminosity equation that is a function of light position.

21. A computer-readable medium having a computer program for resampling texture maps, the computer program comprising:

logic for storing a first texture map defining a first texture, the first texture map based on an image of an object; and

logic for resampling a first texture map thereby compensating for a surface distortion of the object.

22. A method for resampling texture maps, comprising:

defining a first texture via a first texture map, the first texture having a discontinuous edge; and

resampling the first texture map thereby transforming the discontinuous edge into a continuous edge.

23. The method of claim 22, wherein the first texture map is based on an image of an object, and wherein the resampling comprises compensating for a surface distortion of the object.

24. The method of claim 22, further comprising generating a second texture map via the resampling, the second texture map defining a second texture having the discontinuous edge.

25. The method of claim 24, wherein the resampling comprises:

determining a value indicative of a distance that a texel of the second texture map is located from the continuous edge of the second texture; and

mathematically combining the value with a value indicative of a separation distance between the continuous edge and another edge of the second texture.

26. The method of claim 25, wherein the resampling further comprises determining, based on the mathematically combining, the texel'"'"'s position within the second texture as a percentage of the separation distance.

27. The method of claim 24, wherein the first texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position, and wherein the second texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position.

28. The method of claim 27, wherein each of the luminosity equations comprises constants, and wherein the resampling comprises:

correlating a texel of the second texture map with a plurality of texels of the first texture map; and

determining at least one constant of the second texture map texel, wherein the determining comprises interpolating luminosity equation constants of the plurality of texels.

29. A method for resampling texture maps, comprising:

defining a first texture via a first texture map, the first texture having opposing edges that are asymmetrical; and

resampling the first texture map thereby transforming the asymmetrical opposing edge into symmetrical opposing edges.

30. The method of claim 29, wherein the first texture map is based on an image of an object, and wherein the resampling compensates for a surface distortion of the object.

31. The method of claim 29, wherein the symmetrical opposing edges are parallel

32. The method of claim 29, further comprising generating a second texture map via the resampling, the second texture map defining a second texture having the symmetrical opposing edges.

33. The method of claim 32, wherein the generating comprises:

determining a value indicative of a distance that a texel of the second texture map is located from one of the edges of the second texture; and

mathematically combining the value with a value indicative of a separation distance between the opposing edges of the second texture.

34. The method of claim 33, wherein the generating further comprises determining, based on the mathematically combining, the texel'"'"'s position within the second texture as a percentage of the separation distance.

35. The method of claim 32, wherein the first texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position, and wherein the second texture map comprises a plurality of texels that are each defined by a luminosity equation that is a function of light position.

36. The method of claim 35, wherein each of the luminosity equations comprises constants, and wherein the generating comprises:

correlating a texel of the second texture map with a plurality of texels of the first texture map; and

determining at least one constant of the second texture map texel, wherein the determining comprises interpolating luminosity equation constants of the plurality of texels.

37. A method for resampling texture maps, comprising:

defining a first texture via a first texture map, the first texture map based on an image of an object; and

resampling the first texture map thereby compensating for a surface distortion of the object.

38. The method of claim 37, further comprising generating a second texture map via the resampling, the second texture map defining a second texture, the second texture having opposing edges and lines of texels extending from one of the opposing edges to another of the opposing edges, wherein the method, for each of the texel lines, comprises:

determining a first distance between opposing edges of the first texture;

determining a second distance along the texel line and between the opposing edges of the second texture;

correlating, based on the first and second distances, a location within the first texture and a location within the second texture;

determining at least one luminosity value associated with the first texture location based on texture map data that is associated with at least one texel of the first texture; and

assigning the luminosity value to a texel of the second texture that is associated with the second texture location.

39. The method of claim 37, wherein the first and second distances are unequal.

40. The method of claim 37, wherein the one texel is adjacent to the first texture location.

41. The method of claim 37, wherein the luminosity value represents a constant of a luminosity equation that is a function of light position.