US9042663B2 - Two-level error correcting codes for color space encoded image - Google
Patents US9042663B2 - Two-level error correcting codes for color space encoded image …

US9159011B2 - Information broadcast using color space encoded image - Google Patents
US9159011B2 - Information broadcast using color space encoded image - Google Patents …

(*) Notice: Subject to any disclaimer, the term of this OTHER PUBLICATIONS patent is
extended or adjusted under 35 International Search Report and Written Opinion for …

BACKGROUND As portable electronic devices offer an ever-increasing amount of
functionality, people are using these devices to assist with a greater variety of tasks. As an …

ABSTRACT A QR code is a special type of barcode that can encode information like
numbers, letters, and any other characters. The capacity of a given QR code depends on the …

We propose a color barcode framework for mobile phone applications by exploiting the
spectral diversity afforded by the cyan (C), magenta (M), and yellow (Y) print colorant …

Since the printing quick response (QR) code can be easily produced and duplicated as a
potential tool for cybercriminals, QR code security has been a hotly debated issue across …

In this paper, a multilevel grey-scale visual coding scheme is proposed for data transmission
from LCD screens to Android smartphone cameras. A computer equipped with an LCD …

We present a per-channel framework for extending monochrome barcodes to color for
display applications, offering increased data rates and capacity. Data is independently …

BACKGROUND OF THE INVENTION Document image information, be it color or black and
white, is commonly generated in a bitmap format at a particular scale, orientation 9 and …