Apparatus and method for optical gesture recognition
First Claim
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1. An optical gesture recognition system, the system comprising:
- a first light source;
a first optical receiver configured to receive reflected light from an object when the first light source is activated and output a first measured reflectance value corresponding to an amplitude of the reflected light; and
a processor configured to receive the first measured reflectance value, where the processor is further configured to compare the first measured reflectance value at first and second points in time to track motion of the object and identify a gesture of the object corresponding to the tracked motion of the object.
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Abstract
An optical gesture recognition system is shown having a first light source and a first optical receiver configured to receive reflected light from an object when the first light source is activated and output a first measured reflectance value corresponding to an amplitude of the reflected light. A processor is configured to receive the first measured reflectance value and to compare the first measured reflectance value at first and second points in time to track motion of the object and identify a gesture of the object corresponding to the tracked motion of the object.
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Citations
23 Claims
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1. An optical gesture recognition system, the system comprising:
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a first light source; a first optical receiver configured to receive reflected light from an object when the first light source is activated and output a first measured reflectance value corresponding to an amplitude of the reflected light; and a processor configured to receive the first measured reflectance value, where the processor is further configured to compare the first measured reflectance value at first and second points in time to track motion of the object and identify a gesture of the object corresponding to the tracked motion of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for gesture recognition in an optical system, the method comprising the steps of:
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measuring an amplitude of reflected light from an object at a first point in time to obtain a first measured reflectance value; measuring an amplitude of reflected light from an object at a second point in time to obtain a second measured reflectance value; comparing the first and second measure reflectance values to determine the relative motion of the object; and identifying a gesture corresponding to the relative motion of the object. - View Dependent Claims (20, 21, 22)
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23. An optical gesture recognition system, the system comprising:
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means for measuring amplitude of reflected light from an object at a first point in time to obtain a first measured reflectance value and at a second point in time to obtain a second measured reflectance value; means for comparing the first and second measure reflectance values to determine relative motion of the object; and means for identifying a gesture corresponding to the relative motion of the object.
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Specification