Information communication method
First Claim
1. A method, comprising:
- setting an exposure time of an image sensor included in a terminal device so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject;
obtaining a bright line image, including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time;
obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image;
obtaining an angle of light of the subject, the light of the subject entering into the image sensor,calculating a distance between the terminal device and the subject using the angle;
obtaining a position of the subject that is specified by the identification information; and
calculating a position of the terminal device using the distance and the position of the subject.
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Accused Products
Abstract
A method includes setting an exposure time of an image sensor included in a terminal device so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject. The method also includes obtaining a bright line image, including a plurality of bright lines, by capturing the subject, obtaining identification information of the subject, and obtaining an angle of light of the subject. The method further includes calculating a distance between the terminal device and the subject using the angle, obtaining a position of the subject that is specified by the identification information, and calculating a position of the terminal device using the distance and the position of the subject.
230 Citations
13 Claims
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1. A method, comprising:
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setting an exposure time of an image sensor included in a terminal device so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image, including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time; obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; obtaining an angle of light of the subject, the light of the subject entering into the image sensor, calculating a distance between the terminal device and the subject using the angle; obtaining a position of the subject that is specified by the identification information; and calculating a position of the terminal device using the distance and the position of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device, comprising:
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a processor, an image sensor having a plurality of exposure lines; and a memory storing thereon a computer program, which when executed by the processor, causes the processor to perform operations, including setting an exposure time of the image sensor so that, in an image obtained by capturing the subject by the image sensor, a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image, including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time; obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; obtaining an angle of light of the subject, the light of the subject entering into the image sensor; calculating a distance between the terminal device and the subject using the angle; obtaining a position of the subject that is specified by the identification information; and calculating a position of the terminal device using the distance and the position of the subject.
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11. A non-transitory recording medium storing thereon a computer program, which when executed by a processor, causes the processor to perform operations, including:
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setting an exposure time of an image sensor included in a terminal device so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image, including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time; obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; obtaining an angle of light of the subject, the light of the subject entering into the image sensor, calculating a distance between the terminal device and the subject using the angle; obtaining a position of the subject that is specified by the identification information; and calculating a position of the terminal device using the distance and the position of the subject.
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12. A method, comprising:
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transmitting identification information from a subject to a terminal device by a change in luminance of the subject; setting an exposure time of an image sensor included in the terminal device so that, in an image obtained by capturing the subject by the image sensor, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image, including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time; obtaining the identification information of the subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; obtaining an angle of light of the subject, the light of the subject entering into the image sensor, calculating a distance between the terminal device and the subject using the angle; obtaining a position of the subject that is specified by the identification information; and calculating a position of the terminal device using the distance and the position of the subject.
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13. A system, comprising:
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a transmitter configured to transmit identification information to a terminal device by a change in luminance of the transmitter, and a terminal device, including a processor, an image sensor having a plurality of exposure lines; and a memory storing thereon a computer program, which when executed by the processor, causes the processor to perform operations, including setting an exposure time of the image sensor so that, in an image obtained by capturing the transmitter by the image sensor, a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the transmitter, obtaining a bright line image, including a plurality of bright lines, by capturing the transmitter that changes in luminance by the image sensor with the set exposure time; obtaining the identification information of the transmitter, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; obtaining an angle of light of the transmitter, the light of the transmitter entering into the image sensor, calculating a distance between the terminal device and the transmitter using the angle; obtaining a position of the transmitter that is specified by the identification information; and calculating a position of the terminal device using the distance and the position of the transmitter.
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Specification