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What is a 2D code?

What is a 2D code?

In the case of barcodes, information can be encoded only in the transverse direction (one dimension), while in the case of 2D codes, information can be encoded in both the transverse and the longitudinal directions (two dimensions). By using 2D codes, the range of information content that can be encoded is dramatically increased.

2D code types

The following table shows major 2D codes and their features.

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