POSITION DETECTION SYSTEM AND CONTROL METHOD OF POSITION DETECTION SYSTEM
First Claim
1. A position detection system comprising:
- a light emitting apparatus that emits detection light to a detection area for detecting indication positions of indicators; and
a position detection apparatus that detects the indication positions of the indicators in the detection area,wherein the position detection apparatus includes an imaging portion that captures an image of the detection area, and a position detection portion that detects at least one of an image of light generated by a first indicator of the indicators and an image of the detection light reflected on a second indicator of the indicators from data of a captured image of the imaging portion, and discriminates and detects the indication positions of the first indicator and the second indicator based on light emission timings of the first indicator and the light emitting apparatus.
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Accused Products
Abstract
A projection system includes a light emitting apparatus that emits detection light to a detection area for detecting indication positions of indicators, and a projector that detects the indication positions of the indicators in the detection area. The projector includes an imaging portion that captures an image of the detection area, and a position detection portion that detects at least one of an image of light generated by the indicator and an image of the detection light reflected on the indicator from data of a captured image of the imaging portion, and discriminates and detects the indication positions of the indicator and the indicator based on light emission timings of the indicator and the light emitting apparatus.
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Citations
5 Claims
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1. A position detection system comprising:
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a light emitting apparatus that emits detection light to a detection area for detecting indication positions of indicators; and a position detection apparatus that detects the indication positions of the indicators in the detection area, wherein the position detection apparatus includes an imaging portion that captures an image of the detection area, and a position detection portion that detects at least one of an image of light generated by a first indicator of the indicators and an image of the detection light reflected on a second indicator of the indicators from data of a captured image of the imaging portion, and discriminates and detects the indication positions of the first indicator and the second indicator based on light emission timings of the first indicator and the light emitting apparatus. - View Dependent Claims (2, 3, 4)
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5. A control method of a position detection system that includes a light emitting apparatus that emits detection light to a detection area for detecting indication positions of indicators, and a position detection apparatus that detects the indication positions of the indicators in the detection area, the method comprising:
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capturing an image of the detection area by an imaging portion; and detecting at least one of an image of light generated by a first indicator of the indicators and an image of the detection light reflected on a second indicator of the indicators from data of a captured image of the imaging portion, and discriminating and detecting the indication positions of the first indicator and the second indicator based on light emission timings of the first indicator and the light emitting apparatus.
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Specification