Gesture recognition method and interactive system using the same
First Claim
1. A gesture recognition method for an interactive system, the interactive system comprising at least one light source, a reflector, and an image sensor configured to capture an image window comprising object images of at least one pointer caused by the pointer occluding light emitted from the at least one light source or the reflector, the gesture recognition method comprising:
- capturing the image window with the image sensor;
obtaining information of the object images in the image window;
determining whether there is a plurality of pointers according to the information of the object images; and
executing, when it is determined that there is a plurality of pointers, a gesture recognition according to a relation between the object images in successive image windows without calculating respective position coordinates of the object images,wherein the information of the object images comprises an average number of the object images, an average distance between the object images, and a greatest distance between the object images.
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Accused Products
Abstract
A gesture recognition method for an interactive system includes the steps of: capturing image windows with an image sensor; obtaining information of object images associated with at least one pointer in the image windows; calculating a position coordinate of the pointer relative to the interactive system according to the position of the object images in the image windows when a single pointer is identified according to the information of object images; and performing gesture recognition according to a relation between the object images in the image window when a plurality of pointers are identified according to the information of object images. The present invention further provides an interactive system.
15 Citations
19 Claims
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1. A gesture recognition method for an interactive system, the interactive system comprising at least one light source, a reflector, and an image sensor configured to capture an image window comprising object images of at least one pointer caused by the pointer occluding light emitted from the at least one light source or the reflector, the gesture recognition method comprising:
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capturing the image window with the image sensor; obtaining information of the object images in the image window; determining whether there is a plurality of pointers according to the information of the object images; and executing, when it is determined that there is a plurality of pointers, a gesture recognition according to a relation between the object images in successive image windows without calculating respective position coordinates of the object images, wherein the information of the object images comprises an average number of the object images, an average distance between the object images, and a greatest distance between the object images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An interactive system, comprising:
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a passive light source having a reflecting surface; an image sensor configured to capture image windows each comprising real object images and imaginary object images; and a processing unit configured to execute a gesture recognition according to a relation between the real object images and the imaginary object images in successive image windows captured by the image sensor without calculating respective position coordinates of the real object images and the imaginary object images. - View Dependent Claims (12, 13, 14)
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15. A gesture recognition method for an interactive system, the interactive system comprising a light-emitting unit and an image sensor configured to capture an image window comprising object images of a plurality of pointers caused by the pointers occluding light emitted from the light-emitting unit, the gesture recognition method comprising:
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capturing image windows with the image sensor; and executing a gesture recognition according to relations between a plurality of object images in successive image windows without calculating respective position coordinates of the object images, wherein the relations between the object images comprise a change of an average distance between the object images, a change of a greatest distance between the object images, and a direction of displacement. - View Dependent Claims (16, 17, 18)
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19. A gesture recognition method for an interactive system, the interactive system comprising at least one light source, a reflector, and an image sensor configured to capture an image window comprising object images of at least one pointer caused by the pointer occluding light emitted from the at least one light source or the reflector, the gesture recognition method comprising:
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capturing the image window with the image sensor; obtaining information of the object images in the image window; determining whether there is a plurality of pointers according to the information of the object images; and recognizing, when it is determined that there is a plurality of pointers, a rotation according to a relation between the object images in successive image windows without calculating respective position coordinates of the object images.
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Specification