WO2020143560A1

WO2020143560A1 - Two-dimensional code having high recognition rate and data area drawing method therefor

Info

Publication number: WO2020143560A1
Application number: PCT/CN2020/070366
Authority: WO
Inventors: 刘少磊; 沈怡; 罗年庆; 祝哲海
Original assignee: 尤尼泰克(嘉兴)信息技术有限公司
Priority date: 2019-01-07
Filing date: 2020-01-05
Publication date: 2020-07-16

Abstract

A data area drawing method for a two-dimensional code having high recognition rate, which relates to the field of data recognition, especially two-dimensional code technology. The method comprises: determining a two-dimensional code version according to input data, and determining the number of first type data areas, second type data areas and third type data areas on the basis of the two-dimensional code version; calculating the optimal width LA of the first type data areas and the optimal length LB of the second type data areas according to the input data and the two-dimensional code version; and drawing a two-dimensional code information frame according to the two-dimensional code version, the width LA of the first type data areas and the length LB of the second type data areas, and reserving a camouflage isolation area spaced apart by different data areas. The present method solves the technical problems of consuming a lot of time, high error rate and low security of two-dimensional code identification, improves the identification accuracy and efficiency, and enhances the reliability and security.

Description

A high recognition rate two-dimensional code and its data area drawing method

Technical field

The invention relates to the field of data recognition, in particular to the formation and capture technology of two-dimensional codes.

Background technique

Two-dimensional codes are widely used in industries such as high-tech industries, storage and transportation, wholesale and retail industries that need to quickly mark information on items. The speed of data identification and identification security are important considerations for the development of two-dimensional codes factor.

The Chinese patent application with patent publication number CN102034127A, the technical scheme is shown in Figure 1, which discloses a large-capacity two-dimensional barcode system and its encoding method. The area 120 in the figure is a data unit. The data unit is composed of nXn matrix data units, and n is an integer greater than or equal to 7. The design capacity depends mainly on the size of n. If the data capacity is larger, the single data unit becomes larger, the amount of data increases, the value of the partition is lost, and the recognition effect is reduced; the special information area (header data unit area) is structurally indistinguishable from other information areas. Difficulty: Although the overall information is divided into several data units, there is no space for protecting data between the data units, which is not conducive to graphic recognition.

Summary of the invention

In order to solve the technical problems of long time-consuming, high error rate and low security existing in the prior art, the present invention proposes a two-dimensional code data area drawing method with good recognition effect, high recognition efficiency and strong reliability .

To achieve the above objective, the present invention provides a method for drawing a two-dimensional code data area with a high recognition rate, including:

Step 1: Determine the two-dimensional code version according to the input data, and determine the number of the first-type data area, the second-type data area, and the third-type data area based on the two-dimensional code version;

Step 2: Based on the input data and the two-dimensional code version, calculate the optimal width of the first type data area L _A and the length of the second type data area L _B ;

Step 3: According to the version of the two-dimensional code, the width of the first-type data area L _A and the length of the second-type data area L _B , draw a two-dimensional code information frame, and reserve camouflage isolation for different data areas at intervals Area.

Preferably, the step 4 further includes filling and drawing data within the first type data area, the second type data area, and the third type data area.

Preferably, the first-type data area is composed of A first-type information areas with a length of L _V and a width of a fixed width I. In the first-type information area, the data is from left to right or right to right in columns The left order is alternately filled and drawn, and pixels between adjacent first-type information areas are drawn vertically and continuously.

Preferably, the second-type data area is composed of B second-type information areas with a fixed width I and a width of L _{H. In} the second-type information area, the data is in units of rows from top to bottom, or from bottom to top Alternate filling and drawing, pixel points between adjacent second-type information areas are drawn continuously horizontally.

Preferably, the third-type data area is composed of A*B I*I third-type information areas. In the third-type information area, data is drawn from left to right in a column unit or alternately filled from right to left in sequence , Pixels between adjacent third-type information areas are drawn continuously horizontally or vertically.

Preferably, the two-dimensional code is used for information authentication in an offline state or a non-network state.

Preferably, the two-dimensional code is used for identification of the certificate, and the certificate includes: a license, a business card, and a nameplate.

Preferably, the two-dimensional code is used to identify financial documents, and the financial documents include: insurance policies, bills, traffic tickets, and financial statements.

Preferably, the two-dimensional code is used for announcement identification. The announcement includes: legal documents, certificates, instructions, product packaging, advertisements and printed matter.

A high-recognition QR code, including:

A coding area, the coding area includes a plurality of anchor points,

Multiple data areas,

The data area includes:

2N first-type data areas of equal size separated by positioning points in the vertical direction,

2M second-type data areas of equal size spaced apart by positioning points in the horizontal direction,

And P third-type data areas adjacent to the first-type data area and the second-type data area.

Preferably, the length of the third type data area is equal to the length of the second type data area, the width of the third type data area is equal to the width of the first type data area; the third type The number of data areas P = (the number of first-type data areas 2N/2) * (the number of second-type data areas 2M/2).

Preferably, the positioning point is a rectangle with a length L _V and a width L _H.

Preferably, the first-type data area includes V columns, 2A rows, and a total of 2A*V pixels:

a ₁₁ , a ₁₂ , ... a _1(V) ,

a ₂₁ , a ₂₂ , ..., a _2(V) ,

…,

a _(2A)1 ,..., a _(2A)(V) ;

The first type data area is composed of A first type information areas with a length of L _V and a width of fixed width I. In the first type information area, the data is arranged in sequence from left to right in columns, or from right to left Arranged in order, the order of arrangement between adjacent first-type information areas alternates.

Preferably, the second type data area includes 2B columns, H rows, and a total of H*2B pixels:

b ₁₁ , b ₁₂ ,..., b _1(2B) ,

b ₂₁ , b ₂₂ , ..., b _2(2B) ,

…,

b _(H)1 ,..., b _(H)(2B) ;

The second type data area is composed of B second type information areas with a fixed width I and a width of L _{H. In} the second type information area, the data is arranged in rows from top to bottom, or from bottom to top , The arrangement order between adjacent second-type information areas alternates.

Preferably, the third type data area includes 2B columns, 2A rows, and a total of 2A*2B pixels:

c ₁₁ , c ₁₂ ,...c _1(2B) ,

c ₂₁ , c ₂₂ , ..., c _2(2B) ,

…,

c _(2A)1 ,..., c _(2A)(2B) ;

The third type data area is composed of A*B I*I third type information areas. In the third type information area, the data is arranged in order from left to right, or from right to left in column units, adjacent The order of the third type of information area alternates.

Preferably, the two-dimensional code further includes a camouflage isolation area separated by different data areas; the plurality of data areas and the camouflage isolation area are masked.

Preferably, the fixed width I is 1-10 pixels long.

Preferably, the width of the first type data area and the length of the second type data area are determined according to the number of the first information area, the number of the second information area, and the number of the third information area , And the length and width of the third type data area.

BRIEF DESCRIPTION

Figure 1 is an example diagram of a prior art two-dimensional code;

2 is an example diagram of a first type of information area provided by Embodiment 1 of the present invention;

3 is an example diagram of a second type of information area provided by Embodiment 1 of the present invention;

4 is an example diagram of a third type of information area provided by Embodiment 1 of the present invention;

5 is an example diagram of a two-dimensional code provided by Embodiment 2 of the present invention;

6 is an example diagram of a two-dimensional code information area arrangement provided by Embodiment 2 of the present invention;

7 is a flowchart of rendering a two-dimensional code data area provided by Embodiment 3 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In view of the fact that the existing methods cannot realize efficient, high-precision and high-security two-dimensional code recognition, the embodiments of the present invention provide a two-dimensional code data area drawing method with a high recognition rate.

Example one

This embodiment provides an arrangement of a first-type data area, a second-type data area, and a third-type data area of a two-dimensional code, as shown in FIGS. 2-4.

As shown in Figure 2, the data in the first type of information area in row 1 is arranged from left to right in the order of top-down columns, and the data in the first type of information area in row 2 is from right to right Arranged in order to the left, the last pixel of the first type information area on the first line is adjacent to the first pixel of the unit area of the first type information area on the second line.

As shown in Figure 3, the data in the second type of information area in the first column is arranged in order from top to bottom in units of behavior from left to right, and the data in the second type of information area in the second column is arranged in order from bottom to top In the arrangement, the last pixel of the second type information area in the first column is adjacent to the first pixel of the second type information area in the second column.

As shown in FIG. 4, one third-type information area is arranged from left to right in units of top-down columns, and one third-type information area is arranged from right to left in units of top-down columns.

In the information area of this embodiment, the two kinds of arrangement order appear alternately, and the streamlined data formed is conducive to data reading; the information area with different arrangement order is used to form different areas to improve the recognition efficiency; between different data areas The information is arranged in a different order, and each data area corresponds to the corresponding data reading rule, which improves the security of the data.

Example 2

This embodiment provides a two-dimensional code, as shown in FIGS. 5 and 6, including: a coding area, the coding area includes a plurality of positioning points 101, a plurality of data areas, and a camouflage isolation area separated by different data areas. The data area includes two first-type data areas A0, A1 connected between horizontally axisymmetric positioning points, and two second-type data areas B1-1, B1-2 located on the upper and lower edges of equal size, and A third-type data area C1 located between the first-type data area and the second-type data area.

The first type of data area includes 9 columns of pixels:

a ₁₁ , a ₁₂ , a ₁₃ , a ₁₄ , a ₁₅ , a ₁₆ , a ₁₇ , a ₁₈ , a ₁₉ ,

a ₂₁ , a ₂₂ , a ₂₃ , a ₂₄ , a ₂₅ , a ₂₆ , a ₂₇ , a ₂₈ , a ₂₉ ,

a ₃₁ , a ₃₂ , a ₃₃ , a ₃₄ , a ₃₅ , a ₃₆ , a ₃₇ , a ₃₈ , a ₃₉ ,

a ₄₁ , a ₄₂ , a ₄₃ , a ₄₄ , a ₄₅ , a ₄₆ , a ₄₇ , a ₄₈ , a ₄₉ ,

…

The first-type data area is composed of a plurality of first-type information areas 201 with a length of 9 and a width of 2, and its data is in accordance with a ₁₁ -a ₂₁ -a ₁₂ -a ₂₂ -a ₁₃ -a ₂₃ -a ₁₄ -a ₂₄ -a ₁₅ -a ₂₅ -a ₁₆ -a ₂₆ -a ₁₇ -a ₂₇ -a ₁₈ -a ₂₈ -a ₁₉ -a ₂₉ -a ₃₉ -a ₄₉ -a ₃₈ -a ₄₈ -a ₃₇ -a ₄₇ -a ₃₆ -a ₄₆ -a ₃₅ -a ₄₅ -a ₃₄ -a ₄₄ -a ₃₃ -a ₄₃ -a ₃₂ -a ₄₂ -a ₃₁ -a ₄₁ ... in order.

The second type of data area includes 9 rows of pixels:

b ₁₁ , b ₁₂ , b ₁₃ , b ₁₄ ,...,

b ₂₁ , b ₂₂ , b ₂₃ , b ₂₄ ,...,

b ₃₁ , b ₃₂ , b ₃₃ , b ₃₄ ,...,

b ₄₁ , b ₄₂ , b ₄₃ , b ₄₄ ,...,

b ₅₁ , b ₅₂ , b ₅₃ , b ₅₄ ,...,

b ₆₁ , b ₆₂ , b ₆₃ , b ₆₄ ,...,

b ₇₁ , b ₇₂ , b ₇₃ , b ₇₄ ,...,

b ₈₁ , b ₈₂ , b ₈₃ , b ₈₄ ,...,

b ₉₁ , b ₉₂ , b ₉₃ , b ₉₄ ,...

The second-type data area is composed of a plurality of second-type information areas 202 with a length of 2 and a width of 9, whose data is in accordance with b ₁₁ -b ₁₂ -b ₂₁ -b ₂₂ -b ₃₁ -b ₃₂ -b ₄₁ -b ₄₂ -b ₅₁ -b ₅₂ -b ₆₁ -b ₆₂ -b ₇₁ -b ₇₂ -b ₈₁ -b ₈₂ -b ₉₁ -b ₉₂ -b ₉₃ -b ₉₄ -b ₈₃ -b ₈₄ -b ₇₃ -b ₇₄ -b ₆₃ -b ₆₄ -b ₅₃ -b ₅₄ -b ₄₃ -b ₄₄ -b ₃₃ -b ₃₄ -b ₂₃ -b ₂₄ -b ₁₃ -b ₁₄ ... in order.

The third type of data area includes multiple pixels:

c ₁₁ , c ₁₂ ,...,

c ₂₁ , c ₂₂ ,...,

c ₃₁ , c ₃₂ ,...,

c ₄₁ , c ₄₂ ,...,

…

The third-type data area is composed of a plurality of third-type information areas 203 with a length of 2 and a width of 2, the data of which is according to c ₁₁ -c ₂₁ -c ₁₂ -c ₂₂ ,..., and c ₃₂ -c ₄₂ -c ₃₁ -c ₄₁ , ... in order of arrangement.

In this embodiment, the composition units of different data areas are different, and the arrangement order of the composition units is also different, which provides effective partition isolation and security guarantee for the drawing of information.

In addition, this embodiment solves the problem that the two-dimensional code is difficult to draw with large capacity. By adjusting the width of the first type data area or/and adjusting the length of the second type data area, the data capacity is optimized, the purpose of maximizing the data per unit area is achieved, and the shape of the unit area is kept unchanged. Of course, the change of the first type data area and the second type data area will also positively affect the capacity of the third type data area, namely the first type data area and the increase of the second type data area capacity, resulting in the second type The capacity of the data area increases, and vice versa.

Example Three

This embodiment provides a method for drawing a two-dimensional code information area, as shown in FIG. 7, including:

Step 1: Determine the two-dimensional code version according to the input data, and determine the number of the first type data area, the second type data area, and the third type data area based on the two-dimensional code version;

Step 3: According to the version of the two-dimensional code, the width of the first-type data area L _A and the length of the second-type data area L _B , draw a two-dimensional code information frame, and reserve the disguise isolation of different information areas at intervals Area;

Step 4: Perform data filling on each data area; in each data area, perform data filling according to the pipeline arrangement of its information area.

The first type data area is composed of A first type information areas with a length of L _V and a width of 2. The first type information area is filled with data drawn from left to right in column units, or from right to left Filling and drawing. Filling and drawing are performed between adjacent first-type information areas in consecutive alternating order with data connection points.

The second type data area is composed of B second type information areas with a length of 2 and a width of L _{H. In} the second type information area, the data is filled and drawn in order from the top to the bottom, or from bottom to top. , The adjacent second-type information area is filled and drawn in an alternating sequence with data connection points immediately adjacent to each other.

The third type data area is composed of A*B 2*2 third type information areas. In the third type information area, the data is filled and drawn sequentially from left to right in column units, or from right to left. The adjacent third-type information areas are filled and drawn in an alternating sequence in which the data connection points are adjacent and continuous.

This embodiment solves the problem that the large-capacity QR code is difficult to draw. The width of the data area or/and the length of the data area is determined by calculating the number of information areas, thereby optimizing the data capacity, achieving the purpose of maximizing the data per unit area, and keeping the shape of the unit area unchanged. The arrangement order of different unit data areas leads to different pipeline reading rules, which protects the internal data security.

In summary, the two-dimensional code data area rendering method provided by the embodiments of the present invention has the following beneficial effects:

(1) The different data areas of the present invention correspond to different unit data areas, which enhances the recognizability of the data and improves the resolution and recognition rate; at the same time, the arrangement order of the different unit data areas leads to different reading rules of the pipeline to ensure the security of the data;

(2) The division and arrangement of the data area can optimize the data capacity, and maximize the data per unit area while ensuring the recognition rate;

(3) The light-colored interval in each data area of the present invention can reduce the interference in the identification process, protect the integrity of the data in the data area, and improve the data analysis efficiency from the side.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the protection of the present invention The scope, within the spirit and principle of the present invention, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present invention.

Claims

A method for drawing a two-dimensional code data area with high recognition rate, which is characterized by including:

Step 1: Determine the two-dimensional code version according to the input data, and determine the number of the first type data area, the second type data area, and the third type data area based on the two-dimensional code version;

Step 2: Based on the input data and the two-dimensional code version, calculate the optimal width of the first type data area L A and the length of the second type data area L B ;

Step 3: According to the version of the two-dimensional code, the width of the first-type data area L A , and the length of the second-type data area L B , draw a two-dimensional code information frame, and reserve different intervals to disguise the isolation of the data area Area.
The method for drawing a high-recognition two-dimensional code data area according to claim 1, wherein the step 4 further includes data filling in the first type data area, the second type data area, and the third type data area draw.
The method for drawing a two-dimensional code data area with high recognition rate according to claim 2, wherein the first type data area is composed of A first type information areas with a length of L V and a width of fixed width I. In one type of information area, the data is drawn from left to right, or alternately from right to left in columns, and pixels are drawn vertically and continuously between adjacent first type information areas.
[Corrected in accordance with Rule 26 14.03.2020]
The method for drawing a two-dimensional code data area with high recognition rate according to claim 2, wherein the second type data area is composed of B second type information areas with a fixed width I and a width L H , In the second-type information area, the data is filled and drawn in order from the top to the bottom, or from the bottom to the top, and the pixels between the adjacent second-type information areas are drawn horizontally and continuously.
The method for drawing a two-dimensional code data area with high recognition rate according to claim 2, wherein the third type data area is composed of A*B I*I third type information areas, and the third type information area , The data is drawn from left to right or alternately from right to left in column units, and pixels between adjacent third-type information areas are drawn continuously horizontally or vertically.
The method for drawing a two-dimensional code data area with high recognition rate according to claims 1-5, wherein the two-dimensional code is used for information authentication in an offline state or a non-network state.
The method for drawing a two-dimensional code data area with a high recognition rate according to claims 1-5, wherein the two-dimensional code is used for identification of a certificate, and the certificate includes: a license, a business card, and a nameplate.
The method for drawing a two-dimensional code data area with high recognition rate according to claims 1-5, characterized in that the two-dimensional code is used for financial document identification, and the financial document includes: policy, bill, traffic ticket, financial Report.
The method for drawing a two-dimensional code data area with high recognition rate according to claims 1-4, wherein the two-dimensional code is used for announcement identification, the announcement includes: legal documents, certificates, instructions, product packaging, Advertising and printed matter.
A two-dimensional code with a high recognition rate is characterized by including:

A coding area, the coding area includes a plurality of anchor points,

Multiple data areas,

The data area includes:

2N first-type data areas of equal size separated by positioning points in the vertical direction,

2M second-type data areas of equal size spaced apart by positioning points in the horizontal direction,

And P third-type data areas adjacent to the first-type data area and the second-type data area.
The two-dimensional code with high recognition rate according to claim 10, wherein the length of the third type data area is equal to the length of the second type data area, and the width of the third type data area is equal to The widths of the first-type data areas are equal; the number of the third-type data areas P=(the number of the first-type data areas 2N/2)*(the number of the second-type data areas 2M/2).
The two-dimensional code with high recognition rate according to claim 10, wherein the positioning point is a rectangle with a length L V and a width L H.
The two-dimensional code with high recognition rate according to claim 10, wherein the first-type data area includes V columns, 2A rows, and 2A*V pixels in total:

a 11 , a 12 ,... a 1 (V),

a 21 , a 22 , ..., a 2 (V),

…,

a (2A)1 ,..., a (2A)(V) ;

The first type data area is composed of A first type information areas with a length of L V and a width of fixed width I. In the first type information area, the data is arranged in sequence from left to right in units of columns, or from right to left Arranged in order, the order of arrangement between adjacent first-type information areas alternates.
The two-dimensional code with high recognition rate according to claim 9, wherein the second type data area includes 2B columns, H rows, and a total of H*2B pixels:

b 11 , b 12 ,..., b 1(2B) ,

b 21 , b 22 , ..., b 2(2B) ,

…,

b (H)1 ,..., b (H)(2B) ;

The second type data area is composed of B second type information areas with a fixed width I and a width of L H. In the second type information area, the data is arranged in rows from top to bottom, or from bottom to top , The arrangement order between adjacent second-type information areas alternates.
The two-dimensional code with high recognition rate according to claim 10, wherein the third type data area includes 2B columns, 2A rows, and a total of 2A*2B pixels:

c 11 , c 12 ,...c 1(2B) ,

c 21 , c 22 , ..., c 2(2B) ,

…,

c (2A)1 ,..., c (2A)(2B) ;

The third type data area is composed of A*B I*I third type information areas. In the third type information area, the data is arranged in order from left to right, or from right to left in column units, adjacent The order of the third type of information area alternates.
The high-recognition two-dimensional code according to claims 10-15, wherein the two-dimensional code further includes a camouflage isolation area spaced apart by different data areas; the plurality of data areas and the camouflage isolation area serve as masks deal with.
The two-dimensional code with high recognition rate according to claims 13-15, wherein the fixed width I is 1-10 pixels long.
The two-dimensional code with high recognition rate according to claims 10-15, characterized in that the number of the first information area, the number of the second information area, and the number of the third information area are determined by The width of the first type data area, the length of the second type data area, and the length and width of the third type data area.
The two-dimensional code with high recognition rate according to claims 10-15, wherein the two-dimensional code is used for information authentication in an offline state or a non-network state.