Title :
Colour multiplexing of quick-response (QR) codes
Author :
AndreÌ, P.S. ; Ferreira, R.A.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tech. Univ. of Lisbon, Lisbon, Portugal
Abstract :
The storage capacity of a quick-response (QR) code is limited, which can inhibit several applications. A novel approach to multiplex data to improve the QR code capacity based on colour multiplexing is presented. A model was proposed to determine the recognition rate as a function of the multiplexing density and noise. Experimentally, the increase of the storage capacity by a factor of six times per unit area when compared to the normal QR code is demonstrated.
Keywords :
bar codes; image colour analysis; image recognition; QR code capacity; colour multiplexing; multiplexing density; multiplexing noise; quick-response codes; recognition rate; two-dimensional barcode;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.2501
