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US 2004/0001113 A1Published application
Method and apparatus for spline-based trajectory classification, gesture detection and localization
OwnerJohn Zipperer, Fernando C.M. Martinsinventors
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Abstract
A gesture classification method includes receiving position data. A detected spline is generated based on the position data. A normalization scheme is applied to the detected spline to generate a normalized spline. A goodness value is determined by comparing the normalized spline with gesture splines representing gestures stored in a gesture database.
Claims41
A gesture classification method, comprising:
- receiving position data;
- generating a detected spline based on the position data;
- applying a normalization scheme to the detected spline to generate a normalized spline;
- and
- determining a goodness value by comparing the normalized spline with gesture splines representing gestures stored in a gesture database.
2 more elements
A gesture detection method, comprising:
- receiving a set of position data;
- determining a start data point and a stop data point of the set of position data;
- testing the position data between the start data point and the stop data point via comparison with data representing predetermined gestures;
- and
- locating a gesture within the set of position data based on the testing.
2 more elements
A gesture recognition device, comprising:
- a spline generating device to generate a spline based on a set of positional data;
- a normalization device to normalize the spline;
- and
- a goodness determination device to determine a goodness value based on how closely the spline correlates with a spline representing a gesture stored in a gesture vocabulary, and return the gesture if the goodness value exceeds a threshold value.
1 more element
A gesture recognition system, comprising:
- a raw data acquisition device to acquire a set of positional data;
- a spline generating device to generate a spline based on the set of positional data;
- a normalization device to normalize the spline;
- and
- a goodness determination device to determine a goodness value based on how closely the spline correlates with a spline representing a gesture stored in a gesture vocabulary, and return the gesture if the goodness value exceeds a threshold value.
2 more elements
An article comprising:
- a storage medium having stored thereon first instructions that when executed by a machine result in the following:
- receiving position data;
- generating a detected spline based on the position data;
- applying a normalization scheme to the detected spline to generate a normalized spline;
- and
- determining a goodness value by comparing the normalized spline with gesture splines representing gestures stored in a gesture database.
3 more elements
An article comprising:
- a storage medium having stored thereon first instructions that when executed by a machine result in the following:
- receiving a set of position data;
- determining a start data point and a stop data point of the set of position data;
- testing the position data between the start data point and the stop data point via comparison with data representing predetermined gestures;
- and
- locating a gesture within the set of position data based on the testing.
3 more elements
Dependencies are inferred from the claim text.