Information communication method
First Claim
1. An information communication method for obtaining identification information from a subject 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; and
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,wherein the subject is adjacent to another subject, and a pattern of a change in luminance of the subject is the same as a pattern of a change in luminance of the another subject,wherein the subject has a first rectangular shape and the another subject has a second rectangular shape, andwherein the first rectangular shape is aligned in parallel with and adjacent to the second rectangular shape.
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Abstract
An information communication method obtains 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 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, and obtaining identification information of the subject. In obtaining of the bright line image, an exposure time of each of the plurality of exposure lines partially overlaps with an exposure time of an adjacent one of the plurality of exposure lines. A pattern of a change in luminance of the subject is the same as a pattern of a change in luminance of another adjacent subject.
233 Citations
10 Claims
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1. An information communication method for obtaining identification information from a subject 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; and 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, wherein the subject is adjacent to another subject, and a pattern of a change in luminance of the subject is the same as a pattern of a change in luminance of the another subject, wherein the subject has a first rectangular shape and the another subject has a second rectangular shape, and wherein the first rectangular shape is aligned in parallel with and adjacent to the second rectangular shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An information communication system includes a subject and an information communication device for obtaining identification information from the subject, 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; and 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, wherein the subject is adjacent to another subject, a pattern of a change in luminance of the subject is the same as a pattern of a change in luminance of the another subject, wherein the first subject has a first rectangular shape and the another subject has a second rectangular shape, and wherein the first rectangular shape is aligned in parallel with and adjacent to the second rectangular shape.
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Specification