A common image processing framework for 2D barcode reading

Generation of fiducial marker dictionaries using Mixed Integer Linear Programming

“…For instance, Cybercode [18] and VisualCode [19] (Fig. 2b,c) are based on the same technology than QR and Maxicode [20] codes, but providing several correspondence points. Other popular fiducial markers based on blob detection are the ReacTIVision amoeba markers [21], that are designed using genetic algorithms (Fig.…”

“…Some approaches employ special anchor points, such as QR and Maxicode [20], to remove the rotation ambiguity. However, this complicates the detection process and, more importantly, these anchor points are vulnerable to errors since they are not protected by any coding system.…”

Centrality bias measure for high density QR code module recognition

“…Correct window size, elimination of block effects and reduction of the execution time are the main local thresholding method problems. The authors in [26] used a modified version of Niblack algorithm, where a threshold for a given point is set as the average gray-level of point neighborhood.…”

Real-time multi-barcode reader for industrial applications

“…The reading method is based on detection of transitions between the stripes by extracting the zero-crossings of the second derivative of the 1D signal reconstructed from the 2D barcode block. E.Ouaviani et al [3] . proposed a simple image processing approach suitable to locate, segment and decode the most common 2D symbols in real time images.…”