Device and method for recognizing gesture based on direction of gesture
First Claim
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1. A device for recognizing a gesture based on a direction of movement of an object, the device comprising:
- a memory configured to store previous directional information that indicates a first direction of movement of the object in which the object moves between a previous position and a current position;
a sensor configured to sense the movement of the object between positions and output sensor data that indicates the movement of the object between positions; and
a processor configured to determine current directional information that indicates a second direction of movement of the object in which the object moves between the current position and a next position based on the sensor data, to update a variable corresponding to a predetermined gesture by increasing or decreasing the variable based on an update value being assigned to a transition between the first direction of movement of the object indicated by the previous directional information stored in the memory and the second direction of movement of the object indicated by the current directional information, and to recognize the gesture by determining, based on the variable, whether the sensed movement corresponds to the predetermined gesture by comparing the variable to a predetermined threshold value.
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Abstract
A device and method for recognizing a gesture according to movement directions of an object.
16 Citations
15 Claims
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1. A device for recognizing a gesture based on a direction of movement of an object, the device comprising:
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a memory configured to store previous directional information that indicates a first direction of movement of the object in which the object moves between a previous position and a current position; a sensor configured to sense the movement of the object between positions and output sensor data that indicates the movement of the object between positions; and a processor configured to determine current directional information that indicates a second direction of movement of the object in which the object moves between the current position and a next position based on the sensor data, to update a variable corresponding to a predetermined gesture by increasing or decreasing the variable based on an update value being assigned to a transition between the first direction of movement of the object indicated by the previous directional information stored in the memory and the second direction of movement of the object indicated by the current directional information, and to recognize the gesture by determining, based on the variable, whether the sensed movement corresponds to the predetermined gesture by comparing the variable to a predetermined threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of recognizing a gesture based on a direction of movement of an object, the method comprising:
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sensing the movement of the object and generating sensor data that indicates the movement of the object; determining current directional information that indicates a current direction of movement of the object in which the object moves between a current position and a next position based on the sensor data; obtaining previous directional information that indicates a previous direction of movement of the object in which the object moves between a previous position and the current position; updating a variable corresponding to a predetermined gesture by increasing or decreasing the variable based on an update value being assigned to a transition between the current direction of movement of the object indicated by the current directional information and the previous direction of movement of the object indicated by the previous directional information; and recognizing the gesture by determining, based on the variable, whether the sensed movement corresponds to the predetermined gesture by comparing the variable to a predetermined threshold value. - View Dependent Claims (9, 10, 11, 12)
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13. A motion recognition device comprising:
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a memory configured to store a direction sequence estimator that indicates a sequence of movement directions of a gesture pattern; a sensor configured to sense movement of an object between positions; and a processor configured to determine a sequence of movement directions of the object in which the object moves between the positions from the movement of the object sensed by the sensor, update a variable corresponding to the gesture pattern by increasing or decreasing the variable based on the direction sequence estimator and update values being assigned to transitions between the sequence of movement directions of the object, determine whether the variable meets a threshold that indicates the sequence of movement directions of the object corresponds to the sequence of movement directions of the gesture pattern by comparing the variable to the threshold, and determine that the sequence of movement directions of the object corresponds to the sequence of movement directions of the gesture pattern in response to determining the variable meets the threshold. - View Dependent Claims (14, 15)
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Specification