Coding and Recognition Method of Dot Matrix QR Codes

摘要

The present invention discloses a method of coding and recognizing a dot matrix QR code, wherein the dot matrix QR code is composed of M × N virtual code point storage blocks and a plurality of coordinate correction blocks by filling code points in the virtual code point storage blocks. A plurality of data storage blocks, one first indication block and one second indication block, respectively; The code points filled in the first indication block and the plurality of coordinate correction blocks are both located at the center of the virtual code point storage block and only one; The first indication block and the second indication block form a combination of a direction and coordinate indication block having a direction and coordinate indication action; The code point is not filled in the second indication block, or an ink code point that reflects the wavelength light specified at the center position is filled; The plurality of coordinate correction blocks are spaced apart from each other and distributed in the dot matrix QR code. The present invention has advantages such as large coding capacity, little disturbance in people's eyes, and simple and reliable recognition.