Information communication method
First Claim
Patent Images
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 a direction 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 direction;
obtaining a location of the subject, which is specified by the identification information;
calculating a location of the terminal device using the distance and the location of the subject; and
sending the location of the terminal device to a server.
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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, obtaining identification information of the subject, and obtaining a direction of light of the subject. Additionally, the method includes calculating a distance between the terminal device and the subject, and obtaining a location of the subject. The method further includes calculating a location of the terminal device using the distance and the location of the subject, and sending the location of the terminal device to a server.
235 Citations
11 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 a direction 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 direction; obtaining a location of the subject, which is specified by the identification information; calculating a location of the terminal device using the distance and the location of the subject; and sending the location of the terminal device to a server. - 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 a direction 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 direction; obtaining a location of the subject, which is specified by the identification information; calculating a location of the terminal device using the distance and the location of the subject; and sending the location of the terminal device to a server.
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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 a direction 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 direction; obtaining a location of the subject, which is specified by the identification information; calculating a location of the terminal device using the distance and the location of the subject; and sending the location of the subject to a server.
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Specification
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Current AssigneePanasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
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Original AssigneePanasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
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InventorsOshima, Mitsuaki, Nakanishi, Koji, Aoyama, Hideki, Fuchigami, Ikuo, Shin, Hidehiko, Mukai, Tsutomu, Matsushita, Yosuke, Iida, Shigehiro, Yamada, Kazunori
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Primary Examiner(s)Dobson, Daniel G
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Application NumberUS16/800,806Publication NumberTime in Patent Office168 DaysField of SearchUS Class CurrentCPC Class CodesH04B 10/116 Visible light communicationH04B 10/516 Details of coding or modula...H04N 23/73 by influencing the exposure...
