Remote coordinate input device and remote coordinate input method
First Claim
1. A remote coordinate input system for use with a screen, comprising:
- an imaging device that images relative positional relationship between first light emitting elements and a second light emitting element of a designator that includes at least three first light emitting elements and a second light emitting element that is arranged on an orthogonal axis to the plane which is composed of said at least three first light emitting elements;
a coordinate converter that obtains an orientation of the designator with respect to said imaging device from an image which is imaged by said imaging device and converts the image to planar coordinates;
an output device that outputs the planar coordinates that are obtained by the coordinate converter; and
a display that displays designating information on the screen based on the planar coordinates that are obtained from said output device.
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Accused Products
Abstract
The invention prevents an audience from being distracted by movements of a demonstrator that are not related to movements of a pointer on a screen, and by the demonstrator moving away from the screen, during a presentation which is performed by enlarging and projecting the display of a personal computer onto the screen by a projector. A designating tool, which is held by the hand of the demonstrator, is imaged by an imaging part which is disposed at the top of the screen. On the front of the designating tool, infrared LEDs are disposed at each vertex of an isosceles triangle, and recessed at the center, and the orientation of the designating tool is obtained from the positional relationship of the infrared LEDs of an image which has been imaged by the imaging part. This orientation is converted to planar coordinates and is sent to a computer, a marker is displayed on a screen, and the software is operated.
16 Citations
13 Claims
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1. A remote coordinate input system for use with a screen, comprising:
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an imaging device that images relative positional relationship between first light emitting elements and a second light emitting element of a designator that includes at least three first light emitting elements and a second light emitting element that is arranged on an orthogonal axis to the plane which is composed of said at least three first light emitting elements;
a coordinate converter that obtains an orientation of the designator with respect to said imaging device from an image which is imaged by said imaging device and converts the image to planar coordinates;
an output device that outputs the planar coordinates that are obtained by the coordinate converter; and
a display that displays designating information on the screen based on the planar coordinates that are obtained from said output device. - View Dependent Claims (2, 3, 4, 5)
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6. A remote coordinate input system for use with a screen, comprising:
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an imaging device that images relative positional relationship between first reflecting elements and a second reflecting element of a designator that includes at least three first reflecting elements and a second reflecting element that is arranged on an orthogonal axis to the plane which is composed of said at least three first reflecting elements;
an irradiating device that irradiates the at least three first reflecting element and the second reflecting element;
a coordinate converter that obtains an orientation of the designator with respect to said imaging device from an image that is imaged by said imaging device and converts the image into planar coordinates;
an output device that outputs the planar coordinates that are obtained by the coordinate converter; and
a display that displays designation information on the screen based on the planar coordinates that are obtained from said output device. - View Dependent Claims (7, 8)
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9. A remote coordinate input system for use with a screen, comprising:
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an imaging device that images relative positional relationship between a hollow disk-shaped first light emitting element and a second light emitting element of a designator that includes a hollow disk-shaped first light emitting element and a second light emitting element that is arranged on an orthogonal axis to the plane which is composed of said hollow disk-shaped first light emitting element;
an irradiating device that irradiates the hollow disk-shaped first reflecting element and the second reflecting element;
a coordinate converter that obtains an orientation of the designator with respect to said imaging device from an image which is imaged by said imaging device and converts the image to planar coordinates;
an output device that outputs the planar coordinates that are obtained by the coordinate converter; and
a display that displays designating information on the screen based on the planar coordinates that are obtained from said output device.
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10. A remote coordinate input method, comprising the steps of:
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obtaining a first image from a first light emitting element;
obtaining a second image from a second light emitting element;
obtaining a reference coordinate from a coordinate of said first image;
obtaining an orientation of a designator with respect to an imaging device from a positional relationship between the second image and the reference coordinate; and
specifying a designating position on a display according to said orientation. - View Dependent Claims (11, 13)
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12. A remote coordinate input method, comprising the steps of:
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obtaining a first image from a first reflecting element;
obtaining a second image from a second reflecting element;
obtaining a reference coordinate from a coordinate of said first image;
obtaining an orientation of a designator with respect to an imaging device from a positional relationship between the second image and the reference coordinate; and
specifying a designating position on a display according to said orientation.
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Specification