INFORMATION COMMUNICATION DEVICE

摘要

An information communication method includes: setting an exposure time of an image sensor so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the subject; capturing the subject that changes in luminance by the image sensor with the set exposure time, to obtain the image including the bright line; and obtaining information by demodulating data specified by a pattern of the bright line included in the obtained image.

主权项

1. An information communication method of obtaining information from a subject using an image sensor including a plurality of exposure lines, the information communication method comprising:
obtaining first image data by starting exposure sequentially for the plurality of exposure lines in the image sensor each at a different time and performing image capture with a first exposure time so that 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; and obtaining second image data by starting exposure sequentially for the plurality of exposure lines each at a different time and performing image capture with a second exposure time shorter than the first exposure time so that 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, and obtaining information by demodulating a bright line pattern that appears in the second image data, the bright line pattern corresponding to the plurality of exposure lines, wherein in the obtaining of second image data, the second exposure time is set to less than or equal to 1/480 second and a sensitivity of the image sensor is set to a value higher than a sensitivity of the image sensor in the obtaining of first image data, to cause the bright line pattern to appear in the second image data.