Abstract: Disclosed is a QR code extension method, comprising the following steps: S1. obtaining data encoding information, and determining the number of positioning points based on a data encoding length; S2. partitioning a data area according to different shapes, and adjusting a parameter of each data partition by adjusting the number of transverse and/or longitudinal unit QR codes; and S3, drawing a QR code, and outputting a result. The method is more flexible, and can make a QR code realize one-way or two-way extension, and the length and the width of a data area can be slightly adjusted to ensure that the capacity of the data area is close to the size of data information, so that capacity in per unit space is optimized.

Abstract: The invention relates to the field of data identification, in particular to a technique for forming and capturing a two-dimensional code. The invention provides a method for forming and capturing a two-dimensional code positioning dot matrix for rapid positioning. The method for forming the two-dimensional code positioning point lattice comprises the following steps: Setting or reading the positioning point data lattice; drawing four central symmetric primary positioning point lattice on the setting background; and adding the positioning interval area to the periphery of the primary positioning point lattice. The invention solves the technical problems of long locating time and high locating error rate in 2d code recognition, strengthens the reliability of two-dimensional code locating, improves the identifying efficiency, and reduces the pollution of locating points and data.

Abstract: The present invention relates to the field of data identification, and in particular to a two-dimensional code technology. The present invention provides a two-dimensional code drawing method for rapid and accurate identification. The two-dimensional code drawing method comprises cryptographically generating binary input data; determining a layout of a two-dimensional code according to the input data; drawing a positioning point lattice of the two-dimensional code under a designated background; drawing the binary input data into a data area; and cryptographically generating and drawing basic information binary data on a basic data area. The present invention solves the technical problems of low positioning reliability, long identification time consumption low security and difficult mass storage of the two-dimensional code in the prior art, and has accurate positioning, high identification efficiency and strong expansibility.