Fig 1.
Information exchange process among public display, server, and mobile device.
Fig 2.
Encoding of illumination pattern ID.
ⓐ: content brightness change interval and its value; ⓑ: illuminance sensor value according to the content brightness change.
Fig 3.
Illumination interval and the recognition rate.
Fig 4.
The angle measurement of mobile device and digital signage, and their success rate.
Fig 5.
Device binding success rate under varied ambient light intensity with ⓐ: 63cd/m2 display; ⓑ: 143cd/m2 display.
Fig 6.
The arrangement of digital signages and the contents for evaluation.
Fig 7.
Interaction methods and their interaction completion time.
Table 1.
Interaction methods and their interaction completion time (in seconds).
Fig 8.
Comparison of interaction types in completion time and simultaneous users.
Table 2.
Comparison of interaction types in completion time and simultaneous users (in seconds).
Fig 9.
Comparison of interaction types in error rate and simultaneous users.
Fig 10.
Comparison of interaction types in completion time with video contents.
Table 3.
Comparison of interaction types in completion time with video contents (in seconds).