Fig. 1.

Illustration of the GS1 2D DataMatrix barcode. (A) This is an illustration of GS1 barcode and corresponding DataMatrix, which is a 2D matrix (or two-dimensional) barcode which may be printed as a square or rectangular symbol made up of individual dots or squares [16]. The 2D representation is an ordered grid of dark and light dots bordered by a finder pattern. The finder pattern is partly used to specify the orientation and structure of the symbol. The data is encoded using a series of dark or light dots based upon a pre-determined size. The size of these dots is known as the X-dimension. (B) A single 2D barcode can hold a significant amount of information and may remain legible even when printed at a small size or etched onto a product. 2D barcodes are used in a wide range of industries, from manufacturing and warehousing to logistics and healthcare.