Information communication method of obtaining information from a subject by demodulating data specified by a pattern of a bright line included in an obtained image
US8823852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2013 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | May 24, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/531
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information communication method includes: obtaining a first image by capturing a subject; detecting a range of the subject from the first image; determining, from among a plurality of exposure lines, predetermined exposure lines for capturing the range of the subject; setting an exposure time so that, in a second image obtained using the predetermined exposure lines, a bright line appears according to a change in luminance of the subject; obtaining the second image including the bright line, by capturing the subject that changes in luminance using the predetermined exposure lines with the set exposure time; and demodulating data specified by a pattern of the bright line included in the obtained second image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.