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Dot matrix code identification method

A code recognition and dot matrix technology, applied in the field of dot matrix code recognition, can solve problems such as incompatibility of fixed identification code recognition methods, incompatibility of products, insufficient number of dot codes, etc., to achieve easy reconfiguration and expansion, easy identification and expansion , the effect of high recognition rate

Active Publication Date: 2012-10-03
蒋月琴
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, the dot matrix arrangement and combination that already exists in the market has OID code. The principle is to mark a fixed area through a series of reference points, and distribute a fixed number of identification codes in this area. The position of each identification code Different IDs represent different IDs, and the IDs of all identification codes are combined to form a complete ID. The existing OID codes have the following disadvantages: 1) The judgment method causes insufficient number of point codes
2) It is difficult to increase the number of point codes by increasing the fixed number of identification codes
3) The identification methods between different fixed identification codes are difficult to be compatible
4) Due to the insufficient number of point codes, in order to distinguish their own products, the developers of OID lead to incompatibility between products, causing consumers to repeatedly purchase similar products, and it is difficult to integrate resources, resulting in waste of resources

Method used

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Examples

Experimental program
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Embodiment 1

[0050] Embodiment 1: The basic judgment area 4 is a positioning area formed by a reference point, such as figure 2 , image 3 and Figure 4 shown. There are 8 types of basic ID values ​​consisting of 1 reference point and 1 information point, and there are 8 to 9 types of overall ID values, totaling 134,217,728 types.

Embodiment 2

[0051] Embodiment 2: The basic judgment area 4 is the positioning area formed after connecting two reference points into a line segment, such as Figure 5 and Figure 6 shown. Basic ID value acquisition method: judge the judgment area of ​​each information point through two reference points, and obtain the ID value represented by the information point according to the position of each information point in the corresponding judgment area; The ID value is combined into the basic ID value; Judgment conditions and judgment area: the judgment area of ​​each information point is divided by the straight-line distance between two reference points. In the case of 3 information points in a basic judgment area, Then, the basic ID value under one basic judgment condition is 8 to the third power, and there are 512 kinds in total.

Embodiment 3

[0052] Embodiment 3: The basic judgment area 4 is an equilateral triangle formed by three reference points, such as Figure 7 shown. The three reference points 2 form a triangle, and some fine adjustments are made to the equilateral triangle, that is, the heights of the base and the base are equal, and the triangle is used as the basic judgment area 4 . Information point 3 is located in the center of the divided isosceles triangle. There are two ways to place the triangle: bottom up or bottom down. In each way, determine which division area the information is in. There are 4 types in total. The binary codes used are 00, 01, 10, and 11, counting 4 types. The overall ID value is calculated according to the number of triangles used in combination. The overall judgment area 5 spliced ​​by regular triangles can be a triangle, a rhombus or a regular hexagon, which is 4 to the Nth power, and N represents the number of triangles.

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Abstract

The invention discloses a dot matrix code identification method. The method comprises the following steps of: a) forming an overall judging region by using key points; b) forming basic judging regions by using datum points; c) traversing information point standard positions in the basic judging region to obtain a basic ID value, if failed, returning back to determine the current basic judging region again; d) obtaining the basic ID values of all the basic judging regions in the overall judging region by circular traversing; and e) combining the basic ID values of all the basic judging regions into an overall ID value of the overall judging region. According to the dot matrix code identification method provided by the invention, the overall judging region consists of the key points and the basic judging regions which are spliced together, the basic judging regions are composed of the datum points, the overall judging region and the basic judging regions are easy to reconfigure and expand, thus, the dot matrix code is easy to identify and expand, and the identification rate is high.

Description

technical field [0001] The present invention relates to a code recognition method, in particular to a dot matrix code recognition method. Background technique [0002] The use efficiency of traditional printed matter is low. Users can only express content by reading text and pictures, and cannot timely reflect text and picture information through audio and video information anytime and anywhere. With the popularization of computers and networks, printed matter has begun to develop in the direction of multimedia digitization. The use of multimedia printed matter is as follows: print two-dimensional light codes on printed textbooks, select a page to be read, and use the point code recognition device to click on it casually. Patterns, characters, numbers, etc. on the page, the dot code recognition equipment can recognize the two-dimensional light code and emit the corresponding pronunciation. [0003] Dot coding is a kind of optical identification code. At present, it has abou...

Claims

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Application Information

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IPC IPC(8): G06K7/10
Inventor 蒋月琴
Owner 蒋月琴
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