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The QR Code was
invented in 1994 by a team led by Masahiro Harada of the
Japanese company Denso Wave based on the original marking
technology of car parts. It is a two-dimensional matrix barcode
that can be used for many purposes.
Later, the
encoding and decoding rules of QR Code were formulated into
multiple international standards, such as AIM International, JIS
X 0510 and ISO/IEC 18004:2015, etc.
The difference
between a two-dimensional code and a one-dimensional barcode
mainly lies in the encoding method and information capacity. The
QR code uses a two-dimensional square matrix, which can store
more information and represent more data types. One-dimensional
barcodes use one-dimensional lines, can only store a small
amount of information, and can only represent numbers or
letters. There are other differences between QR codes and 1D
barcodes, such as scanning speed, error correction capabilities,
compatibility, etc. |
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QR Code can store
more information because it uses a two-dimensional square matrix
instead of one-dimensional lines. One-dimensional barcodes can
usually store only a few dozen characters, while QR Code can
store thousands of characters.
QR Code can
represent more data types, such as numbers, letters, binary,
Chinese characters, etc. One-dimensional barcodes can usually
only represent numbers or letters.
QR Code can be
scanned and recognized faster because it has four orientation
marks and can be scanned from any angle. 1D barcodes usually
need to be scanned from a specific orientation.
QR Code is more
resistant to damage and interference because it has error
correction features that allow partial recovery of lost or
obfuscated data. 1D barcodes generally do not have such
functionality.
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