Abstract: A visible light communication method transmits a signal by visible light communication. The visible light communication method includes modulating the signal into a predetermined blinking pattern, and transmitting the signal by causing visible light to blink according to the predetermined blinking pattern, from a projector disposed in an indoor space surrounded by a wall toward the wall. The visible light communication method also includes projecting video from the projector toward the wall, wherein the visible light is reflected by the wall to prevent the signal from being received in an outside of the indoor space, and the signal is used to transmit data related to the video projected to a terminal in the indoor space.

Abstract: A vital data measuring method includes: acquiring image data of a subject to be measured, wherein the image data are captured by a camera; analyzing the motion of the subject on the basis of the image data of the subject; starting measurement on vital data of the subject using a predetermined range of the image data of the subject in response to the detection of a certain pose of the subject based on an analysis; and outputting measurement results of the vital data of the subject.

Abstract: A visible light communication method transmits a signal by visible light communication. The visible light communication method includes modulating the signal into a predetermined blinking pattern, and transmitting the signal by causing visible light to blink according to the predetermined blinking pattern, from a projector disposed in an indoor space surrounded by a wall toward the wall. The visible light communication method also includes projecting video from the projector toward the wall, wherein the visible light is reflected by the wall to prevent the signal from being received in an outside of the indoor space, and the signal is used to transmit data related to the video projected to a plurality of terminals in the indoor space.

Abstract: A visible light communication method transmits a signal by visible light communication. The visible light communication method includes modulating the signal into a predetermined blinking pattern, and transmitting the signal by causing visible light to blink according to the predetermined blinking pattern, from a projector disposed in an indoor space surrounded by a wall toward the wall. The visible light communication method also includes projecting video from the projector toward the wall, wherein the visible light is reflected by the wall to prevent the signal from being received in an outside of the indoor space, and the signal is used to transmit data related to the video projected to a plurality of terminals in the indoor space.

Abstract: A fluid density gradient detection method includes capturing, by an imaging device under a predetermined imaging condition, a background image that forms a periodic pattern over an observation target area, and outputting an image indicating a fluid density gradient in the observation target area based on a captured image captured by the imaging device. The imaging condition is determined based on a relationship between a width of a pixel of the captured image in a direction in which the pattern periodically changes on the captured image and a pattern period width of the pattern on the captured image.

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 that changes in luminance by the image sensor with the set exposure time. The method further includes estimating a plurality of center areas each of which is in each of the plurality of bright lines, and obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of center areas.

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 that changes in luminance by the image sensor with the set exposure time. The method further includes estimating a plurality of center areas each of which is in each of the plurality of bright lines, and obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of center areas.

Abstract: A method includes determining a pattern of a change in luminance, by demodulating an identification information to be transmitted with a ceiling light, and transmitting the identification information, by the ceiling light changing in luminance according to the determined pattern of the change in luminance. Additionally, in the determining, a first luminance change pattern, corresponding to a first body, and a second luminance change pattern, corresponding to a first header used for the first body, are determined. Furthermore, in the transmitting, the first header and the first body are transmitted by the ceiling light changing in luminance according to the first luminance change pattern, the second luminance change pattern, and the first luminance change pattern in the stated order.

Abstract: A method includes determining a pattern of a change in luminance, by demodulating an identification information to be transmitted with a ceiling light, and transmitting the identification information, by the ceiling light changing in luminance according to the determined pattern of the change in luminance. Additionally, in the determining, a first luminance change pattern, corresponding to a first body, and a second luminance change pattern, corresponding to a first header used for the first body, are determined. Furthermore, in the transmitting, the first header and the first body are transmitted by the ceiling light changing in luminance according to the first luminance change pattern, the second luminance change pattern, and the first luminance change pattern in the stated order.

Abstract: A projection device viewpoint image of a three-dimensional projection target is acquired, a three-dimensional model corresponding to the projection target is prepared as projection contents, the three-dimensional model is converted into a two-dimensional image that coincides with the projection device viewpoint image, and the two-dimensional image that coincides with the projector viewpoint image is projected to the projection target.

Abstract: The method includes obtaining, using a face camera of a smart phone, identification information from a ceiling light of a facility with visible light communication, and obtaining location information of the ceiling light related to the identification information. The method also includes displaying a location related to the location information of the ceiling light on a map of the facility on a display of the smart phone. The smart phone is set on a cart in a state that the face camera is directed to a ceiling of the facility on which the ceiling light is attached, and the face camera is a CMOS sensor and the CMOS sensor is used only for the visible light communication.

Abstract: Identification medium recognition device (3) includes image input (11) that acquires a captured image imaged by an imaging device, identification medium region detector (12) that detects a region of the identification medium from the captured image, identification medium recognizer (18) that recognizes the character and/or the numeric character included in the identification medium from the region of the identification medium, super-resolution processor (17) that selectively performs super-resolution processing of the region of the identification medium, region storage (14) that stores a preset region in the captured image, identification medium region determiner (13) that determines whether the region of the identification medium is positioned within the preset region, and super-resolution processing selector (16) that selects, in a case where it is determined that the region of the identification medium is positioned within the preset region, execution of super-resolution processing by the super-resolution

Abstract: The method includes obtaining, using a face camera of a smart phone, identification information from a ceiling light of a facility with visible light communication, and obtaining location information of the ceiling light related to the identification information. The method also includes displaying a location related to the location information of the ceiling light on a map of the facility on a display of the smart phone. The smart phone is set on a cart in a state that the face camera is directed to a ceiling of the facility on which the ceiling light is attached, and the face camera is a CMOS sensor and the CMOS sensor is used only for the visible light communication.

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.

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.

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 includes setting an exposure time of an image sensor of a terminal of a customer so that, in an image obtained by capturing a subject, 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 that changes in luminance by the image sensor with the set exposure time, 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 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 selected by the customer.

Abstract: An information communication method obtains information from a subject using a terminal device that includes an image sensor. The method includes setting an exposure time of the image sensor having a plurality of exposure lines so that a bright line corresponding to each of the 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 that changes in luminance by the image sensor, and obtaining identification information of the subject. The subject has a rectangular shape, is captured with an around view of the subject. Each of the plurality of bright lines appears within the rectangular shape of the subject in the bright line image, and follows a direction between long sides of the rectangular shape of the subject in the bright line image.

Abstract: An information communication method selectively obtains a location of a terminal device. Determining the location of the terminal device by wireless communication with a wireless access point includes receiving a radio signal including a first identification information to identify a location of the wireless access point, and calculating the location of the terminal device using the identified location of the wireless access point, which is identified by the first identification information. Determining the location of the terminal device by visible light communication with a subject provides higher accuracy and includes setting an exposure time of an image sensor having a plurality to exposure lines 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, obtaining a bright line image by capturing the subject, and demodulating data from the bright line image.

Abstract: An information communication method obtains information from a subject using a terminal device that includes an image sensor. The method includes setting an exposure time of the image sensor having a plurality of exposure lines 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 the 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. During asynchronous communication, a minimum width of the stripe pattern corresponds to at least two bright lines in the obtained bright line image.