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.
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.
Abstract:
A method is provided that includes setting an exposure time of an image sensor of a customer terminal so that, in an image obtained by capturing the subject, a bright line corresponding to each of a plurality of exposure lines 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 and 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. The method further includes sending the identification information to a server, obtaining a menu listing a product of the store from the server, displaying the menu on a display of the terminal, and sending product information of the product that is selected by the customer and payment information of the customer to the server.
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, and obtaining identification information of the subject by demodulating data specified by a pattern of the plurality of bright lines. The method further includes sending (i) the identification information and (ii) language identification information to a server, obtaining a content identified by the identification information from the server, and displaying the translated content.
Abstract:
An information communication method of transmitting a signal using a change in luminance is provided. The information communication method includes: determining a pattern of the change in luminance, by modulating the signal to be transmitted; and transmitting the signal, by at least one light emitter changing in luminance according to the determined pattern of the change in luminance. In the determining, a first luminance change pattern corresponding to a body, a second luminance change pattern indicating a header for specifying the body, and a third luminance change pattern indicating another header different from the header are determined. In the transmitting, the header, the body and the other header are transmitted by the at least one light emitter changing in luminance according to the first luminance change pattern, the second luminance change pattern, the first luminance change pattern and the first luminance change pattern in the stated order.
Abstract:
A visible light communication method is provided that includes obtaining a first ID indicating a default interpolation ID previously stored in a receiver. The method also includes obtaining a second ID, by the receiver, through visible light communication with a light source, and generating a third ID, by the receiver, by combining the first ID and the second ID. The method further includes obtaining, by the receiver, information from a server using the third ID, which is a combination of the first ID and the second ID.
Abstract:
An information communication method is provided that includes continuously capturing an image of a subject that transmits a signal by changing luminance, with an image sensor. The method also includes displaying a captured image that includes a box and a subject image for identifying the subject, while continuously updating a position of the subject image on the captured image, according to a positional relationship between the image sensor and the subject established when the image of the subject is captured. The method further includes determining whether the subject image is in the box, and receiving the signal transmitted by the subject when it is determined that the subject image is in the box. In the receiving, information is obtained by demodulating a bright line pattern that appears in a second image data and corresponds to the plurality of exposure lines.
Abstract:
A communication method for obtaining information from a subject includes obtaining image information of the subject in an image information-taking mode, obtaining visible light data of the subject in a visible light communication mode, and setting a shutter speed and an international organization for standardization (ISO) speed rating or a gain value for the visible light communication mode. The visible light communication mode is a different mode from the image information-taking mode. Also, in the setting, the shutter speed for the visible light communication mode is set to be faster than a shutter speed for the image information-taking mode, and the ISO speed rating or the gain value for the visible light communication mode is set to be greater than an ISO speed rating or a gain value for the image information-taking mode.
Abstract:
A method is provided for sending a computer program from a server to a computer the computer program causing the computer to execute instructions, including setting a second exposure time of the image sensor so that a plurality of bright lines corresponding to a plurality of exposure lines included in an image sensor appear according to a change in luminance of a subject. The instructions also include obtaining a bright line image including the plurality of bright lines, wherein the exposure starts sequentially for the plurality of exposure lines each at a different time. The exposure of each of the plurality of exposure lines starts after a predetermined blank time elapses from when exposure of an adjacent exposure line adjacent to the exposure line ends, and the second exposure time is shorter than the first exposure time.
Abstract:
An information communication method that enables communication between various devices includes: determining a pattern of a change in luminance; transmitting a signal by a light emitter changing in luminance; determining a sequence of first and second image units; and displaying an image including the first and second image units arranged according to the determined sequence, wherein in the displaying: for 0, the sequence of the first and second image units is determined so that a first image unit group and a second image unit group that have a same number of image units as each other are consecutive; and for 1, the sequence of the first and second image units is determined so that a first image unit group and a second image unit group that have different numbers of image units from each other are consecutive.