Information communication method
First Claim
1. An information communication method for obtaining identification information from a subject that transmits the identification information by change in luminance using a terminal device that includes an image sensor, the information communication method comprising:
- setting an exposure time of the image sensor having a plurality of exposure lines 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 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 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;
obtaining target information input by a user of the terminal device; and
displaying, on a display of the terminal device, a route from the location of the terminal device to a location related to the target information on a map of a facility.
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Accused Products
Abstract
An information communication method is provided for obtaining information from a subject using a terminal device that includes an image sensor having a plurality of exposure lines. The method includes 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. The method also includes obtaining a bright line image including a plurality of bright lines, obtaining identification information of the subject, and sending the identification information to a server. The method further includes obtaining menu information related to the identification information from the server, the menu information related to a restaurant where the subject is installed, and displaying the menu information on a display of the terminal device.
235 Citations
11 Claims
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1. An information communication method for obtaining identification information from a subject that transmits the identification information by change in luminance using a terminal device that includes an image sensor, the information communication method comprising:
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setting an exposure time of the image sensor having a plurality of exposure lines 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 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 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; obtaining target information input by a user of the terminal device; and displaying, on a display of the terminal device, a route from the location of the terminal device to a location related to the target information on a map of a facility. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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2. An information communication device for obtaining identification information from a subject that transmits the identification information by change in luminance, the information communication device including a processor and an image sensor, the processor executes operations comprising:
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setting an exposure time of the image sensor having a plurality of exposure lines 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 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 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; obtaining target information input by a user of the terminal device; and displaying, on a display of the terminal device, a route from the location of the terminal device to a location related to the target information on a map of a facility.
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3. A non-transitory recording medium that stores a program for controlling an information communication device for obtaining identification information from a subject that transmits the identification information by change in luminance, the information communication device including a processor and an image sensor, the program executed by the processor causing the information communication device to execute:
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setting an exposure time of the image sensor having a plurality of exposure lines 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; obtaining target information input by a user of the terminal device; displaying, on a display of the terminal device, a route from the location of the terminal device to a location related to the target information on a map of a facility.
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Specification