GESTURE RECOGNITION METHOD AND TOUCH SYSTEM INCORPORATING THE SAME
First Claim
Patent Images
1. A gesture recognition method for a touch system, comprising the steps of:
- capturing images looking across a plate surface with at least one image sensor;
processing the images to determine a contact state variation of a single pointer on the plate surface; and
recognizing whether a relative variation between the single pointer and the plate surface matches a predetermined gesture when the contact state variation is larger than a threshold.
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Abstract
A gesture recognition method for a touch system includes the steps of: capturing images looking across a plate surface with at least one image sensor; processing the images to determine a contact state variation of a single pointer on the plate surface; and recognizing whether a relative variation between the single pointer and the plate surface matches a predetermined gesture when the contact state variation is larger than a threshold. The present invention further provides a touch system.
38 Citations
20 Claims
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1. A gesture recognition method for a touch system, comprising the steps of:
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capturing images looking across a plate surface with at least one image sensor; processing the images to determine a contact state variation of a single pointer on the plate surface; and recognizing whether a relative variation between the single pointer and the plate surface matches a predetermined gesture when the contact state variation is larger than a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A gesture recognition method for a touch system, comprising the steps of:
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capturing images looking across a plate surface with at least one image sensor; processing the images to detect a contact point of a single pointer on the plate surface; and recognizing whether a contact of the single pointer on the plate surface matches a predetermined gesture according to a state variation and a position change of the contact point. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A touch system, comprising:
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a plate, having a plate surface; at least one light source, disposed on the plate surface; at least one image sensor, capturing image windows, looking across the plate surface, containing a shadow of a single pointer blocking the light source; and a processing unit, recognizing whether a width variation or an area variation of the shadow in the image windows is larger than a threshold and recognizing whether a position change of the single pointer on the plate surface matches a predetermined gesture when the width variation or the area variation is larger than the threshold. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification