Viscount Systems has been awarded U.S. Patent 8941465 B2, outlining a system and method for physical access control using QR codes and mobile devices, as part of its Freedom Access Control Solution.

[Herb Peyerl] is part of a robotics team, and in his robotics endeavours, learned about AprilTags; small QR-code-like printable patterns that are easily recognizable by even primitive machine vision.

Going digital: QR codes have seen a sharp increase in usage over the past two years. The popularity of QR codes have seen many ups and downs over the course of its almost 30-year existence, but with ...

Starting November 18, all passengers on Metro Line 2A (Cat Linh – Ha Dong) will use a new access control system featuring ...