| US 7,457,439 B1 | ||
| System and method for motion capture | ||
| Nels Howard Madsen, Auburn, Ala. (US); Thomas M. McLaughlin, Marietta, Ga. (US); Ronnie J. H. Wilmink, Marietta, Ga. (US); and Robert Michael Glover, Marietta, Ga. (US) | ||
| Assigned to Motion Reality, Inc., Marietta, Ga. (US) | ||
| Filed on Dec. 14, 2004, as Appl. No. 11/11,696. | ||
| Application 11/011696 is a continuation in part of application No. 11/011540, filed on Dec. 13, 2004. | ||
| Claims priority of provisional application 60/528666, filed on Dec. 11, 2003. | ||
| Claims priority of provisional application 60/528880, filed on Dec. 11, 2003. | ||
| Claims priority of provisional application 60/528735, filed on Dec. 11, 2003. | ||
| Int. Cl. G06K 9/00 (2006.01); H04N 7/18 (2006.01) | ||
| U.S. Cl. 382—107 [348/154; 348/155] | 32 Claims |

| 1. A method for capturing motion associated with a subject in real-time, comprising:
defining a plurality of elements, wherein each element corresponds to at least one interconnected segment of the model;
defining a plurality of marker positions, wherein each marker position is associated with an element;
defining a predetermined condition;
defining a value for a variable when the predetermined condition is satisfied, wherein a possible position of a first element
is restricted by the value;
for each of a plurality of frames,
predicting locations for the markers, by:
determining whether the predetermined condition is satisfied; and
if the predetermined condition is satisfied, then associating the value with the variable so that the possible position of
the first element is restricted; and
measuring locations of the markers; and
determining positions of the elements by comparing the predicted locations for the markers with the measured locations of
the markers.
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