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After Modulation, discussed previously, Fixed Pattern Damage (FPD) is likely the next most prevalent problem with 2D barcodes. The “fixed pattern” referenced are the omnipresent locator targets [...]

In a previous article, we took a bird’s eye look at the ISO 15415 report, and defined the pass/fail and graded parameters that are the basis for the final symbol grade. Understanding the [...]

Scanning a barcode, whether a 1D like UPC or a 2D like Data Matrix, is based on reflectivity, specifically the reflective differences between the barcode image and its background. At the top of [...]