System and method of pointed position detection, presentation system, and program
First Claim
1. A pointed position detection system comprising:
- image pick-up means which picks up an image of an image display region; and
position detection means which detects a position that is pointed by a pointing image within the image display region, based on image information obtained by the image pick-up means;
wherein the position detection means comprises;
movement detection means which detects movement of the pointing image; and
pointed position detection means which detects the pointed position of the pointing image when movement of the pointing image has halted.
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Abstract
A system and method of pointed position detection, a presentation system, and a program for accurately detecting a pointed position based on an infrared image or the like. The configuration comprises a CCD camera for taking an image of an image display region, and a processing section that functions as a position detection means which detects a pointed position of a pointing image within an image display region that has been formed by infrared light through an optical filter that passes only infrared light. A movement magnitude computation section within the processing section detects movement of a pointer implement, based on the infrared image that was formed by infrared light and taken by the CCD camera, and a pointing coordinate detection section detects the pointed position of that pointing image in a state in which movement of the pointer implement is halted.
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Citations
18 Claims
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1. A pointed position detection system comprising:
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image pick-up means which picks up an image of an image display region; and
position detection means which detects a position that is pointed by a pointing image within the image display region, based on image information obtained by the image pick-up means;
wherein the position detection means comprises;
movement detection means which detects movement of the pointing image; and
pointed position detection means which detects the pointed position of the pointing image when movement of the pointing image has halted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11)
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8. A pointed position detection system comprising:
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image pick-up section which picks up an image of an image display region; and
position detection section which detects a position that is pointed by a pointing image within the image display region, based on image information obtained by the image pick-up section;
wherein the position detection section comprises;
movement detection section which detects movement of the pointing image; and
pointed position detection section which detects the pointed position of the pointing image when movement of the pointing image has halted.
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12. A computer-usable program for implementing a presentation system, embodied on an information storage medium or in a carrier wave, the program further implementing on a computer:
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means for causing image pick-up means to pick up an image of an image display region; and
position detection means which detects a position that is pointed by a pointing image within the image display region, based on image information obtained by the image pick-up means;
wherein the position detection means comprises;
movement detection means which detects movement of the pointing image; and
pointed position detection means which detects the pointed position of the pointing image when movement of the pointing image has halted. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A pointed position detection method comprising:
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an image picking-up step of picking up an image of an image display region; and
a position detection step of detecting a position that is pointed by a pointing image within the image display region, based on image information obtained in the image picking-up step;
wherein the position detection step comprises;
a step of detecting movement of the pointing image; and
a step of detecting the pointed position of the pointing image when movement of the pointing image has halted.
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Specification