Encoding graph block and method and device for forming lattice graph through encoding graph block

Abstract

The invention provides an encoding graph block. The encoding graph block is composed of a direction sequence encoding unit block, CRC bits and a plurality of data encoding unit blocks. The direction sequence encoding unit block comprises a direction characteristic lattice sequence, and each data encoding unit block comprises data code points and data reference points. A method for forming a lattice graph through the encoding graph includes the steps that the style of the direction characteristic lattice sequence is defined; the number of the data encoding unit blocks and the distribution mode of the data reference points and the data code points are defined; the number of CRC blocks and the position relation between the CRC blocks are defined; decimal digits are converted into the data code points implanted into the code point bits; the encoding storage amount contained in the lattice graph is calculated. A device for implementing the method comprises a direction sequence definition module, a data encoding unit definition module, a CRC bit definition module, a data code point forming module and an encoding storage amount calculation module. The encoding graph block can store a large amount of data information and has the anti-fake function.

Description

technical field [0001] The invention relates to a coded picture, in particular to a coded picture block and a method and device for forming a dot matrix pattern through the coded picture block. Background technique [0002] At present, most of the existing anti-counterfeiting mark patterns are generated by using coding rules similar to OID coding technology, and only a limited number of anti-counterfeiting marks can be generated. Its disadvantages are: due to the small amount of coding information stored in the anti-counterfeiting label, it is impossible to store a large amount of data information; in addition, because the coding rules similar to OID coding technology belong to the general and open coding technology, the security of the anti-counterfeiting label is reduced. performance. Contents of the invention [0003] In view of the deficiencies in the above problems, the present invention provides a coded block capable of storing a large amount of data information and...

AI Technical Summary

Problems solved by technology

Its disadvantages are: due to the small amount of coding information stored in the anti-counterfeiting label, it is impossible to store a large amount of data information; in addition, because the coding rules similar to OID coding technology belong to the general and open coding technology, the security of the anti-counterfeiting label is reduced. performance

Images