Polar encode and decode in two-dimensional bar code

摘要

This paper proposes a method for encoding and decoding two-dimensional bar code which based on the polar code. To use the polar encoder and matrix interleaver on the source information to obtain a set of binary streams, and those binary streams are encoded to obtain the two-dimensional bar code picture. Use the method of grey level quantization on the two-dimensional bar code picture to get the soft-bit information, and the soft-bit information is decoded for using the matrix deinterleaver and the polar decoder. In this way, the recognition of the two-dimensional bar code picture has been improved. To use of two-dimensional bar code picture which based on this method in industrial parts, it could reduce the economic losses which two-dimensional bar code picture cannot identify.