System and method for simulating human movement using profile paths

• US 20050278157A1
• Filed: 06/15/2004
• Published: 12/15/2005
• Est. Priority Date: 06/15/2004
• Status: Abandoned Application

• Current Assignee: UGS Corporation (Siemens AG)
• Original Assignee: Electronic Data Systems Corporation (Perspecta, Inc.)
• Inventors: Raschke, Ulrich
• Application Number:
  US10/869,462
• Publication Number:
  US 20050278157A1
• Time in Patent Office: Days
• US Class Current: 703/6
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30
• CPC Class Codes: G06T 13/40 of characters, e.g. humans, animals or virtual beings

Abstract

According to one embodiment of the invention, a computerized method for simulating movement of a living object includes storing a plurality of sets of data, in which each set of data is indicative of an empirical path of a first segment of a first living object, receiving a start point and an end point for a desired movement of a second segment of a second living object, comparing the desired movement of the second segment to the stored sets of data, selecting, based on the comparison, a stored set of data that is representative of the desired movement of the second segment, and simulating the desired movement of the second segment based on the start point, the end point, and the empirical path associated with the selected set of data.

Claims

1. A computerized method for simulating movement of a living object, comprising:

storing a plurality of sets of data, each set of data indicative of an empirical path of a first segment of a first living object;

receiving a start point and an end point for a desired movement of a second segment of a second living object;

comparing the desired movement of the second segment to the stored sets of data;

selecting, based on the comparison, a stored set of data that is representative of the desired movement of the second segment; and

simulating the desired movement of the second segment based on the start point, the end point, and the empirical path associated with the selected set of data.

2. The computerized method of claim 1, wherein the simulating step comprises:

identifying a position and an orientation of the first segment at a plurality of respective times during a time period of movement of the first segment from an empirical start point to an empirical end point;

identifying, based on the positions and orientations at the respective times, the relative change in position and orientation of the first segment between adjacent empirical points; and

applying the relative change in position and orientation to a plurality of points between the start point and the end point of the desired movement.

3. The computerized method of claim 2, further comprising dividing the time period into approximately equal times.

4. The computerized method of claim 2, wherein identifying the relative change in position comprises identifying a relative change in position of the first segment relative to a fixed Cartesian coordinate system as the first segment moves between adjacent empirical points.

5. The computerized method of claim 2, wherein identifying the relative change in orientation comprises identifying a relative change in angle of the first segment relative to a reference plane as the first segment moves between adjacent empirical points.

6. The computerized method of claim 5, further comprising associating the reference plane with a fixed Cartesian coordinate system.

7. The computerized method of claim 5, further comprising associating the reference plane with a plane that corresponds to an axis of an adjacent segment.

8. The computerized method of claim 1, wherein the living object is a human.

9. Logic encoded in media for simulating movement of a living object, the logic operable to perform the following steps:

store a plurality of sets of data, each set of data indicative of an empirical path of a first segment of a first living object;

receive a start point and an end point for a desired movement of a second segment of a second living object;

compare the desired movement of the second segment to the stored sets of data;

select, based on the comparison, a stored set of data that is representative of the desired movement of the second segment; and

simulate the desired movement of the second segment based on the start point, the end point, and the empirical path associated with the selected set of data.

10. The logic encoded in media of claim 9, wherein the logic is further operable to:

identify a position and an orientation of the first segment at a plurality of respective times during a time period of movement of the first segment from an empirical start point to an empirical end point;

identify, based on the positions and orientations at the respective times, the relative change in position and orientation of the first segment between adjacent empirical points; and

apply the relative change in position and orientation to a plurality of points between the start point and the end point of the desired movement.

11. The logic encoded in media of claim 9, wherein the logic is further operable to divide the time period into approximately equal times.

12. The logic encoded in media of claim 10, wherein the logic, is further operable to identify a relative change in position of the first segment relative to a fixed Cartesian coordinate system as the first segment moves between adjacent empirical points.

13. The logic encoded in media of claim 10, wherein the logic is further operable to identifying a relative change in angle of the first segment relative to a reference plane as the first segment moves between adjacent empirical points.

14. The logic encoded in media of claim 13, wherein the logic is further operable to associate the reference plane with a fixed Cartesian coordinate system.

15. The logic encoded in media of claim 13, wherein the logic is further operable to associate the reference plane with a plane that corresponds to an axis of an adjacent segment.

16. The logic encoded in media of claim 9, wherein the living object is a human.

17. A computerized method for simulating movement of a living object, comprising:

storing a plurality of sets of data, each set of data indicative of an empirical path of a first segment of a first living object;

receiving a start point and an end point for a desired movement of a second segment of a second living object;

comparing the desired movement of the second segment to the stored sets of data;

selecting, based on the comparison, a stored set of data that is representative of the desired movement of the second segment; and

identifying a position of the first segment at a plurality of respective times during a time period of movement of the first segment from an empirical start point to an empirical end point;

identifying, based on the positions at the respective times, the relative change in position of the first segment between adjacent empirical points; and

applying the relative change in position to a plurality of points between the start point and the end point of the desired movement.

18. The computerized method of claim 17, further comprising:

identifying an orientation of the first segment at the plurality of respective times;

identifying, based on the orientations at the respective times, the relative change in orientation of the second segment between adjacent empirical points; and

applying the relative change in orientation to the plurality of points between the start point and the end point of the desired movement.

19. The computerized method of claim 17, further comprising dividing the time period into approximately equal times.

20. The computerized method of claim 17, wherein identifying the relative change in position comprises identifying a relative change in position of the first segment relative to a fixed Cartesian coordinate system as the first segment moves between adjacent empirical points.

21. The computerized method of claim 18, wherein identifying the relative change in orientation comprises identifying a relative change in angle of the first segment relative to a reference plane as the first segment moves between adjacent empirical points.

22. The computerized method of claim 21, further comprising associating the reference plane with a fixed Cartesian coordinate system.

23. The computerized method of claim 21, further comprising associating the reference plane with a plane that corresponds to an axis of an adjacent segment.

24. The computerized method of claim 17, wherein the living object is a human.