Chen, the founder of three-dimensional password. On the basis of two-dimensional code, three-dimensional code adds visual attributes. Founder Chen redefined the logo as a "three-dimensional code" and applied for relevant intellectual property protection, including trademarks, on a global scale. Compared with two-dimensional code, three-dimensional code has greater information capacity, the same identification convenience and better security. The encoding method is to compile a string of binary numbers from the text, and then combine the color content of the whole picture with a specific algorithm to encode the binary number string and image information into a group of arrays that can be interpreted by specific rules.

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Three-dimensional code has greater information capacity, the same identification convenience and better security. How to realize a large amount of information in three-dimensional code: one-dimensional bar code and two-dimensional code are printed on a plane, which is a two-dimensional space code. These codes use bars and spaces with a certain length and width to represent data, and four bars and spaces represent 1 byte. Another feature of three-dimensional code is the large amount of information. In the same coding area, the maximum amount of data it can represent is more than 10 times that of PDF4 17 code, so a code with normal size can contain a lot of auxiliary information enough to identify authenticity.

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