Two-dimensional code being prone to reading identification

A technology of two-dimensional images and binary codes, which is applied to record carriers used in machines, instruments, computer parts, etc., can solve the problems of restricting the reading and identification of mobile phones with cameras, and unfavorable development of mobile phone business, so as to achieve easy access to cameras Recognizable, easily scalable effects

CN101206722AInactive Publication Date: 2008-06-25BEIJING KUNLUN YIFA TECH DEV
0 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2008-06-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a two-dimensional image which is easy to read and recognize, wherein, horizontal size and vertical size of the image are close or equal; the image comprises an outline border for convenience in defining an occupied area of the image, and the outline border can be expressed by a mathematical formula, for example, a square; an area representing information in the image is divided into a plurality of small areas, each small area uses black or white to represent 0 or 1 in binary codes; literals or digits can also be expressed as binary codes, thereby one-to-one relations are established between the literals or the digits and the binary codes. When simple literals or texts are expressed, needed binary codes can be short but each small area in corresponding images can not be too small, thereby the image is convenient for camera read and identification. Mobile phones with cameras are more and more popular, and people can develop a plurality of commercial activities on the basis of the mobile phones; the two-dimensional image defined by the invention has better easy-to-use performance under the condition of crowded use environment and that some simple texts and digits are needed to be expressed in image.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a coding technique for expressing simple text information and digital information in image form. Background technique

[0002] There are mainly two types of coding methods, one-dimensional and two-dimensional coding, which are expressed as images that are easy to be recognized by machines by means of images;

[0003] The one-dimensional encoding method is represented by a one-dimensional barcode, and its image can represent numbers and simple text;

[0004] The two-dimensional coding method is represented by PDF417 code QR code, etc., and represents thousands or even tens of thousands of bytes of information through two-dimensional images.

[0005] Cooperating with special reading equipment, these coding methods can obtain faster reading speed and higher accuracy. This type of encoding method is not conducive to reading and recognition by mobile phones with cameras: for example, the one-dimensional barcode was origina...

Examples

Embodiment Construction

[0022] See figure 1 , this method evenly divides a square image into small areas of 7×7, and the outermost circle of small areas is the edge code, which is always black and marked as the edge of the image; in the remaining 5×5 units, the rightmost The first column and the bottom column are defined as check digits. The specific implementation is: define 2.6 and 3.6 as making the behavior even parity, define 4.6 and 5.6 as making the behavior odd parity, and define 6.2 and 6.3 as making the column It is an even parity, 6.4 and 6.5 are defined as making the column where it is an odd parity. 6.6 does not participate in the calculation and can be fixed to represent 1.

[0023] This method can represent any natural number within 65536 to the 16th power of 2. For example, it needs to represent 12345. The binary representation method of this number is 0011000000111001, so:

[0024] Let the four cells of 2.2, 2.3, 2.4, and 2.5 be 0011 respectively, and let 2.6 be 0 to satisfy the eve...