CN116108804A

CN116108804A - Point code file generation method, content review method and content review system

Info

Publication number: CN116108804A
Application number: CN202310354034.XA
Authority: CN
Inventors: 殷述军; 周印伟
Original assignee: Qingdao Robotpen Digital Technology Co ltd
Current assignee: Qingdao Robotpen Digital Technology Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-05-12
Anticipated expiration: 2043-04-06
Also published as: CN116108804B

Abstract

The application provides a point code file generation method, a content review method and a content review system, which belong to the field of handwriting content identification, and the method comprises the following steps: acquiring a first corresponding relation between page numbers and dot matrix patterns in an initial file, wherein the initial file comprises at least one writing page; determining page marks and content marks corresponding to writing pages in an initial file respectively, wherein the content marks corresponding to the writing pages needing to present the same content are the same; and generating a point code file based on the page number mark and the content mark respectively corresponding to the writing page, wherein the point code file comprises at least one point code content page containing a dot matrix pattern, the page number mark and the content mark. In this way, the correspondence between the dot pattern, the page number, and the content can be established, thereby generating a dot code file that facilitates review and review result feedback. Because the point code content pages all carry page number marks and content marks, different point code content pages can be distinguished through the explicit marks, and browsing, editing and the like of the point code files are facilitated.

Description

Point code file generation method, content review method and content review system

Technical Field

The present application relates to the field of handwriting content recognition, and in particular, to a point code file generation method, a content review method, and a content review system.

Background

The dot matrix pen is a novel writing tool, when a user writes on a layer of invisible dot matrix pattern printed or printed plain paper, a high-speed camera at the front end of the dot matrix pen collects writing tracks of the user and transmits the writing tracks to a terminal for displaying/storing through Bluetooth or USB lines, such as an ipad and a computer, the terminal can determine writing data based on the writing tracks and determine page numbers on the paper where the writing data is located based on dot code information corresponding to the dot matrix pattern, so that identification of handwriting content data of the user is realized. The dot matrix pen is used for identifying handwriting content data in teaching, so that online correction and data analysis of student homework, test paper and teaching aid can be realized; when the lattice pen is used for recognizing the handwriting content data in work, a user can upload, recognize and store the handwriting content data without repeatedly editing the handwriting content through texts, and the quick editing, sharing and transmitting of the handwriting content by the user are facilitated.

When writing of multi-page content is completed by using a dot matrix pen, page number information of each page of writing paper needs to be analyzed through dot number information. If the user is to distinguish the content written in different writing papers, different dot patterns are printed or printed on each page of writing paper, otherwise, page numbers corresponding to the writing papers cannot be correctly identified.

Taking a student homework or examination scene as an example, assume that there are two students a and B, and a teacher arranges the same homework for the students a and B, and the homework includes two pages A4 paper, P1 and P2 respectively. If students are required to complete the homework by using the dot matrix pen, dot matrix patterns need to be printed or printed on the two homeworks in advance before the homework is issued. Printing or printing dot patterns can generally be performed in the following manner: and printing or printing two pieces of homework paper P1 and P2 respectively, wherein the dot matrix patterns printed or printed in homework paper P1 of student A and student B are the same, and the dot matrix patterns printed or printed in homework paper P2 of student A and student B are also the same.

However, since dot patterns of the homework papers of the student a and the student B are the same, dot code information of P1 obtained by the dot patterns is the same, and dot code information of P2 obtained by the dot patterns is the same, it is difficult for a teacher to recognize which student the two homework papers P1 and P2 belong to, respectively.

Therefore, the above-described inability to accurately distinguish between writers corresponding to each writing paper results in a great difficulty in review of the written content data, and it is difficult to accurately distinguish between writers corresponding to each written content data.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the application provides a point code file generation method, a content review method and a content review system, which can establish the corresponding relation among dot patterns, page numbers and contents under the condition that the use mode of traditional paper writing is not changed, so as to generate the point code file which is convenient for review and review result feedback.

In a first aspect, a method for generating a point code file is provided, including:

acquiring a first corresponding relation between page numbers and dot matrix patterns in an initial file, wherein the initial file comprises at least one writing page;

determining page marks and content marks corresponding to writing pages in an initial file respectively, wherein the content marks corresponding to the writing pages needing to present the same content are the same;

and generating a point code file based on the page number mark and the content mark respectively corresponding to the writing page, wherein the point code file comprises at least one point code content page containing a dot matrix pattern, the page number mark and the content mark.

In some embodiments, if the initial file includes a blank page, determining the content mark corresponding to the written page in the initial file includes:

Acquiring the content to be printed corresponding to the blank page;

and generating a content mark corresponding to the blank page according to the content to be printed corresponding to the blank page.

In some of these embodiments, the method further comprises:

acquiring a file image corresponding to a point code file, wherein the file image comprises at least one content page image corresponding to a point code content page;

identifying page marks and content marks respectively corresponding to the point content pages in the point code file based on the file image;

for the point code file, a second correspondence between page markers and content markers is established.

In some of these embodiments, the method further comprises:

acquiring mark position information of a content scaling marker; the content scaling markers comprise a first marker and a second marker, and the content scaling markers are used for determining the offset between the content in the point code content page and the boundary of the point code content page;

a point code file containing the content scaling marker is generated based on the marker location information of the content scaling marker.

In some of these embodiments, the method further comprises:

acquiring mark position information of a content rotation marker; the content rotation markers comprise a third marker and a fourth marker, and are used for determining the rotation angle of the content in the point code content page relative to the whole point code content page;

A dot code file containing the content rotation marker is generated based on the marker position information of the content rotation marker.

In some of these embodiments, the first region preset in the dot-code content page includes a page number mark, the second region preset in the dot-code content page includes a content mark, and the first region and the second region are different.

In a second aspect, a content review method is provided, applied to a data management device, where the data management device is respectively connected with a plurality of lattice pens binding identity information of writers, and includes:

acquiring writing content data acquired by a plurality of dot matrix pens from a dot code file, wherein the writing content data comprises a plurality of content writing pages, each content writing page corresponds to one dot code content page in the dot code file, and each content writing page comprises a page number mark and a content mark;

determining a target writer corresponding to each content writing page based on page number marks of each content writing page;

and based on the content marks of the content writing pages, reviewing the writing content in the content writing pages to obtain the review results of the content writing pages corresponding to the target writers.

In some of these embodiments, determining a target writer corresponding to each content writing page based on page number markers of each content writing page includes:

Acquiring a first corresponding relation between the page number and the dot matrix pattern based on the dot code file;

determining a dot matrix pattern corresponding to each content writing page according to the page number marks of each content writing page and the first corresponding relation;

and determining a target writer corresponding to each content writing page according to the dot matrix pattern corresponding to each content writing page and binding identity information of the dot matrix pen for collecting each content writing page.

In some of these embodiments, reviewing the written content in each content writing page based on the content indicia of each content writing page includes:

based on the content marks of the content writing pages, standard filling content corresponding to the content writing pages is obtained;

and according to the standard filling content, reviewing the written content in each content writing page.

In some of these embodiments, the method further comprises:

and sending the review result of each written content page to the corresponding target writer according to the corresponding target writer of each written content page.

In a third aspect, a content review system is provided, including a plurality of lattice pens and a data management device that bind writer identity information, each lattice pen being connected to the data management device;

The dot matrix pen is used for collecting writing content data in the process of writing the content in the dot code file by a writer and sending the writing content data to the data management equipment; the writing content data comprises a plurality of content writing pages, each content writing page corresponds to one point code content page in the point code file, and each content writing page comprises a page number mark and a content mark;

and the data management device is used for establishing the corresponding relation among writers, page numbers and contents according to the writer identity information and the written content data bound by the lattice pen and executing the steps of the content review method shown in the second aspect.

In a fourth aspect, the present application provides a computer device, the device including a memory and a processor, the memory storing a computer program, the processor implementing the steps of the point code file generation method shown in the first aspect or the steps of the content review method shown in the second aspect when executing the computer program.

In a fifth aspect, the present application provides a computer storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the point code file generation method shown in the first aspect, or the steps of the content review method shown in the second aspect.

In a sixth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the point code file generation method shown in the first aspect, or the steps of the content review method shown in the second aspect.

The technical scheme provided by the application can at least achieve the following beneficial effects:

the dot code file generating method, the content review method and the content review system firstly determine dot patterns, page marks and content marks corresponding to each writing page for an initial file, and then print the page marks and the content marks in the writing page, so that the dot code file is generated. Because each point content page in the point file carries a page number mark and a content mark, a user can distinguish different point content pages in the point file through the explicit mark, and the user can conveniently browse, edit and the point file. Therefore, after the corresponding relation among the dot pattern, the page number and the content is established, if the dot pen is used for writing the content in the dot code file, the corresponding relation between the writer and the page number can be determined based on the identity information of the writer bound by the dot pen, so that writers corresponding to the writing content data can be accurately distinguished, effective review can be carried out on the writing content data, and the review result can be accurately fed back to the corresponding writers.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present application or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic architecture diagram of a content review system as shown in an exemplary embodiment of the present application;

FIG. 2 is a schematic diagram of a computer device according to an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of a bit code cell according to an exemplary embodiment of the present application;

FIG. 4 is a flowchart illustrating a method for generating a point code file according to an exemplary embodiment of the present application;

FIG. 5 is a schematic diagram of a dot code content page according to an exemplary embodiment of the present application;

FIG. 6 is a flow chart illustrating a construction of a second correspondence according to an exemplary embodiment of the present application;

FIG. 7 is a flowchart illustrating another method for generating a point code file according to an exemplary embodiment of the present application;

FIG. 8 is a flowchart illustrating yet another method for generating point code files according to an exemplary embodiment of the present application;

FIG. 9 is a schematic diagram of another dot code content page shown in an exemplary embodiment of the present application;

FIG. 10 is a flow chart of a method for content review, as shown in an exemplary embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be further described in detail below with reference to the accompanying drawings and examples.

In some embodiments, the present application provides a content review system, see FIG. 1, that includes a plurality of lattice pens 110 and a data management device 120 that bind writer identity information, with each lattice pen 110 being connected to the data management device 120.

In one possible implementation, the lattice pen is used for collecting writing content data and transmitting the writing content data to the data management device during the process of writing the content in the dot code file by a writer. The data management device is used for establishing a corresponding relation among writers, page numbers and contents according to the writer identity information and the written content data bound by the lattice pen, executing the content review method provided by the application, reviewing the written content data acquired by the lattice pen from the lattice file, and feeding back the review result to the corresponding target writers.

The writing content data comprises a plurality of content writing pages, each content writing page corresponds to one point code content page in the point code file, and each content writing page comprises a page number mark and a content mark.

In FIG. 1, N dot matrix pens are taken as an example, and N.gtoreq.1. In practical application, one writer may have multiple fulcrum array pens, so that the identity information of the writers bound by the multiple fulcrum array pens is the same, and writing content data of the same writer can be still determined according to the identity information of the writers bound by the dot array pens.

Referring to fig. 2, the present application provides a schematic structural diagram of a computer device 200, which may be the data management device 120 shown in fig. 1. The computer device 200 includes at least one processor 210, a communication bus 220, a memory 230, and at least one communication interface 240.

The processor 210 may be a general purpose central processing unit (Central Processing Unit, CPU), network processor (Network Processor, NP), microprocessor, or may be one or more integrated circuits for implementing aspects of the present Application, such as Application-specific integrated circuits (ASIC), programmable logic devices (Programmable Logic Device, PLD), or a combination thereof. The PLD may be a complex programmable logic device (Complex Programmable Logic Device, CPLD), a Field programmable gate array (Field-Programmable Gate Array, FPGA), general array logic (Generic Array Logic, GAL), or any combination thereof.

Communication bus 220 is used to transfer information between the above-described components. The communication bus 220 may be classified into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one communication bus is represented by a double-headed arrow in fig. 2, but not only one bus or one type of bus.

Memory 230 may be, but is not limited to, read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, random access Memory (Random Access Memory, RAM) or other type of dynamic storage device that can store information and instructions, electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media, or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

Alternatively, the memory 230 may be stand alone and coupled to the processor 210 via the communication bus 220; memory 230 may also be integrated with processor 210.

The communication interface 240 is used to communicate with other devices or communication networks. Communication interface 240 includes a wired communication interface and may also include a wireless communication interface. The wired communication interface may be, for example, an ethernet interface. The ethernet interface may be an optical interface, an electrical interface, or a combination thereof. The wireless communication interface may be a wireless local area network (Wireless Local Area Networks, WLAN) interface, a cellular network communication interface, a combination thereof, or the like.

Alternatively, the processor 210 may include one or more CPUs. The computer device 200 may include a plurality of processors. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).

It is noted that a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

In some embodiments, computer device 200 may also include output devices and input devices (not shown in FIG. 2). The output device communicates with the processor and can display information in a variety of ways. For example, the output device may be a liquid crystal display (Liquid Crystal Display, LCD), a light emitting diode (Light Emitting Diode, LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device is in communication with the processor and may receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

In some embodiments, the memory 230 is used to store a computer program for performing the point code file generation method and the content review method of the present application, and the processor 210 may execute the computer program stored in the memory 230.

For example, the computer apparatus 200 may implement the point code file generation method and the content review method provided in the following embodiments by the processor 210 reading a computer program in the memory 230.

In some embodiments, the application provides a point code file generating method, which establishes a corresponding relation among a dot pattern, a page number and contents by adding an explicit page number mark and a content mark in a writing page, so as to generate a point code file which is convenient for reviewing and approving result feedback.

Before explaining the dot code file generating method, a unified explanation is made on the "dot matrix pattern" referred to in the present application.

The dot pattern is composed of pixel-level dot codes, and a plurality of dot codes may constitute a bit code unit, and a bit code unit may represent a set of (x, y) coordinate values. In other words, the lattice pattern comprises at least one bit-code cell, which can be represented by a coordinate range value.

As an example, the size of A4 paper is 210mm by 297mm, taking 600dpi (meaning that 600 pixels are contained per inch, i.e., 25.4 mm) as an example, the number of pixels in the lateral direction of A4 paper is 210×600/25.4×4960, and the number of pixels in the longitudinal direction is 297×600/25.4×7016, i.e., the total number of pixels contained in A4 paper at 600dpi is about 4960×7016.

Based on this example, the lattice pattern divides 4960×7016 into individual bit code units, each bit code unit contains the same number of pixels, in order to distinguish the bit code units, a specific pixel in each bit code unit is marked, and the feature of each bit code unit is different by different arrangement and combination of marked pixels, so that a camera at the front end of the lattice pen captures the marked pixels, and then a unique bit code unit can be decoded, so that the bit code units and coordinates are in one-to-one correspondence. Thus, a large two-dimensional coordinate system is formed, and the two-dimensional coordinate system is cut according to the paper size, so that the mapping relation between the page number and the coordinate range can be formed. The combination of the bit code units containing different features is a dot matrix pattern.

Assuming that the size of a bit code unit is 30×30 pixels, i.e. 900 pixels, it is calculated by using 600dpi of A4 format, and the horizontal bit code unit may include 4960/30≡165 bit code units, and the vertical bit code unit may include 7016/30≡234 bit code units. As described above, some specific pixel points in each bit code unit are specially marked to distinguish the bit code units, so that the features can be used to correspond the bit code units to (x, y) coordinates, so that 165 bit code units in the horizontal direction represent continuous x-coordinate values, 234 bit code units in the vertical direction represent continuous y-coordinate values, and when a camera at the front end of the lattice pen reads the bit code units and then analyzes correct coordinate values, the coordinate points can be drawn, and handwriting can be drawn by connecting the coordinate points through a curve algorithm.

Referring to the bit code unit shown in fig. 3, each small square in fig. 3 represents a pixel point, a black square represents a marked specific mark point, and different bit code units can be distinguished according to the positions of the black square at different pixel points, and then mapped into coordinate values.

It should be noted that, because the dot matrix pattern is at a pixel level, when the dot matrix pattern is scaled to the A4 size, human eyes cannot distinguish the dot matrix pattern, but the camera can accurately capture a specific marked point marked in advance, so that the coordinate value of handwriting can be resolved.

Referring to fig. 4, the present application provides a method for generating a point code file, which is applied to the above-mentioned computer device 200 for illustration, and the method may include the following steps:

step 410: a first corresponding relation between page numbers and dot matrix patterns in an initial file is obtained, wherein the initial file comprises at least one writing page.

It should be understood that the initial file may include one writing page or may include a plurality of writing pages, and the number of writing pages included in the initial file is not limited in the embodiment of the present application.

The writing page in the initial document may be blank paper or a paper with pre-printed content, which is not limited in this embodiment.

In some embodiments, the implementation of step 410 may be: and planning and establishing a first corresponding relation between page numbers and dot matrix patterns according to the number of writing pages contained in the initial file, and ensuring that the dot code ranges corresponding to different page numbers are not overlapped.

As one example, the first correspondence between the page numbers and the dot matrix patterns may be as shown in table 1 below.

TABLE 1

Page number	Dot matrix pattern
		Page number 1	（0，0）-（x ₁ -1，y ₁ -1）
Page number 2	（x ₁ ，0）-（x ₂ -1，y ₁ -1）
		Page number 3	（x ₂ ，0）-（x ₃ -1，y ₁ -1）
……	……
		Page number n	（x _n -1，0）-（x _n -1，y ₁ -1）

Step 420: and determining page marks and content marks corresponding to the written pages in the initial file respectively, wherein the content marks corresponding to the written pages needing to present the same content are the same.

Wherein each written page corresponds to a page number mark and a content mark. The page number marks are used for explicitly representing page number values corresponding to the written page in the initial file, for example, a first page, a second page, a third page, etc., and page number marks corresponding to different written pages are different. The content mark is used for explicitly representing the original content to be presented on the writing page, such as mathematical questions, documents and the like on the writing page, and if the original content presented in the writing page is the same for different writing pages, the corresponding content mark is the same.

In other words, for an initial file containing a plurality of pages, the page number of each page is different, the number of page number marks, etc. the number of pages may be the same or different, depending on whether the original content to be presented in each page is the same.

In some embodiments, the implementation of determining the page number label may be: ordering the writing pages in the initial file, and determining page number values corresponding to the writing pages; and generating page marks corresponding to the writing pages according to page values corresponding to the writing pages.

If the written pages in the initial file are non-blank pages of the printed original content, the written pages in the initial file may be ordered according to the association relationship between the original content, so as to determine page number values corresponding to the written pages in the initial file.

If the written pages in the initial file are blank pages, the written pages in the initial file can be randomly and continuously ordered, the page number values of the written pages are ensured to be different, and the page number values of the written pages are continuous, so that the page number values of the written pages in the initial file are determined.

If the initial file includes both non-blank pages and blank pages, the non-blank pages can be ordered first to determine the page number value of each non-blank page, and then the blank pages are ordered sequentially based on the page number value of the non-blank page with the largest page number value, so that the page number value of each writing page in the initial file can be obtained after continuous page number values of the blank pages and the non-blank pages are ensured.

In some embodiments, the implementation of determining content markers may be: if the writing page in the initial file is a non-blank page of the printed original content, generating a content mark corresponding to the writing page according to the original content of the writing page, wherein the content to be presented by the writing page is the printed original content; if the initial file comprises blank pages, acquiring to-be-printed contents corresponding to the blank pages; and generating a content mark corresponding to the blank page according to the content to be printed corresponding to the blank page, wherein the content to be presented by the writing page is the content to be printed.

In some embodiments, the page number marks and the content marks may be two-dimensional codes, bar codes, character strings, patterns, and the like, and the types of the page number marks and the content marks may be the same or different, which is not limited in the embodiments of the present application.

Step 430: and generating a point code file based on the page number mark and the content mark respectively corresponding to the writing page, wherein the point code file comprises at least one point code content page containing a dot matrix pattern, the page number mark and the content mark.

It should be noted that the number of dot content pages of the dot file is the same as the number of writing pages in the initial file, and the difference is only that dot content pages in the dot file are added with dot patterns, page marks and content marks.

In some embodiments, the first region preset in the dot-code content page includes a page number mark, the second region preset in the dot-code content page includes a content mark, and the first region and the second region are different.

That is, the page number mark and the content mark are located in different areas in the dot number content page, so that the page number mark and the content mark can be clearly and accurately displayed, and the user can recognize different dot number content pages in the dot number file conveniently by naked eyes.

As one example, the first region and the second region may be disposed above the dot code content page, and the first region and the second region are located at different sides. Referring to fig. 5, a page number mark may be added in a first area (see area a in fig. 5) at the upper left in the dot-code content page, and a content mark may be added in a second area (see area B in fig. 5) at the upper right in the dot-code content page.

It should be understood that the first area and the second area are merely for distinguishing the positions of the page number marks and the content marks, and are not limited to the correspondence between the marks and the areas, and the content marks may be added in the first area and the page number marks may be added in the second area, which is not limited in the embodiment of the present application.

In some embodiments, the implementation of step 430 may be: and generating a content printing instruction according to the page number mark and the content mark corresponding to the writing page, and sending the content printing instruction to the printer, so that the printer prints the corresponding dot matrix pattern, the page number mark and the content mark in the writing page of the initial file according to the content printing instruction.

It should be noted that, the dot pattern, the page mark and the content mark may be completed in one printing operation, or may be implemented in multiple printing operations.

As an example, the corresponding dot pattern may be printed in advance in the written page of the initial file, and then the corresponding page mark may be printed in the written page after the page mark corresponding to the written page is generated from the page value.

The paper printed with the dot patterns and the page marks is stored in the printer in advance, when the content is required to be printed, the content corresponding to each page is determined, the corresponding relation between the page and the content marks is determined, and then a content printing instruction is sent to the printer, wherein the content printing instruction carries the printed content and the content marks corresponding to the content. In this way, the printer sequentially prints the corresponding contents and the content marks on the sheet on which the dot pattern and the page mark are printed in advance, according to the content printing instruction, thereby obtaining the dot code file.

Further, after the point code file is generated by the point code file generating method, in order to facilitate the review of the written content data of the writer in the point code file and feedback the review result, a second correspondence between the page number mark and the content mark needs to be pre-established for the point code file.

Referring to fig. 6, constructing a second correspondence between page markers and content markers includes the steps of:

step 440: and acquiring a file image corresponding to the point code file, wherein the file image comprises at least one content page image corresponding to the point code content page.

The number of the content page images contained in the file image is the same as the number of the point code content pages in the point code file, namely, for each point code content page, the corresponding content page image is obtained, so that the file image corresponding to the point code file is obtained.

In some embodiments, the file image corresponding to the point code file may be obtained by a high-speed scanning, photographing, or the like, which is not limited in the embodiments of the present application.

Step 450: based on the file image, page number marks and content marks corresponding to the point-code content pages in the point-code file are identified, respectively.

With continued reference to fig. 5, taking the page number mark and the content mark as two-dimensional codes as an example, after the file image is acquired, two-dimensional code recognition may be sequentially performed on the content page image, the page number mark is recognized from the first area in the upper left corner, and the content mark is recognized from the second area in the upper right corner.

Step 460: for the point code file, a second correspondence between page markers and content markers is established.

That is, for the dot code file, a second correspondence relationship between the page number mark and the content mark is established for each dot code content page.

As one example, if the point code file includes n point code content pages (n.gtoreq.1), the second correspondence may be as shown in Table 2 below.

TABLE 2

Point code file	Page number marking	Content tagging
			Point code content page 1	Sign a	Sign I
Point code content page 2	Mark b	Sign II
			Point code content page 3	Mark c	Mark III
……	……	……
			Point code content page n	Marker n1	Marker n2

Therefore, after the second corresponding relation is established, the content presented by the corresponding point code content page can be rapidly determined according to the page number mark aiming at the point code content page in the point code file, so that the presented content can be conveniently browsed and reviewed.

In this embodiment, for the initial file, the present application first determines the dot pattern, the page number mark, and the content mark corresponding to each writing page, and then prints the page number mark and the content mark in the writing page, thereby generating the dot file. Because each point content page in the point file carries a page number mark and a content mark, a user can distinguish different point content pages in the point file through the explicit mark, and the user can conveniently browse, edit and the point file.

Therefore, based on the first corresponding relation and the second corresponding relation, the corresponding relation among the dot pattern, the page number and the content can be constructed, if the dot pen is used for writing the content in the dot code file, the corresponding relation between the writer and the page number can be determined based on the identity information of the writer bound by the dot pen, so that the writing content data of the writer can be effectively reviewed, and the review result can be accurately fed back to the corresponding writer.

Based on the above embodiment, referring to fig. 7, the method for generating a point code file provided in the present application may further include the following steps:

step 471: marking location information of the content scaling marker is obtained.

Wherein the content scaling markers comprise a first marker and a second marker, the content scaling markers being used to determine an offset between content in the dot code content page relative to a dot code content page boundary.

In some embodiments, the content scaler may be disposed on two sides of the dot code content page, based on the content presented by the dot code content page, where the specific location is not limited in the embodiments of the present application.

It should be noted that the mark position information of the content scaling marker includes a position coordinate of the first marker, a position coordinate of the second marker, and a preset distance between the first marker and the second marker.

It should be noted that, the first marker and the second marker may be black marks, preset patterns, or other types, which is not limited in this embodiment of the present application.

Step 473: a point code file containing the content scaling marker is generated based on the marker location information of the content scaling marker.

As an example, the first marker and the second marker may be respectively set at both sides of the dot code content page, and a distance from both sides of the dot code content page is a preset first distance.

Taking the point code content page as an example of A4 paper, the first distance may be any preset value such as 1cm, 2cm, etc.

In some embodiments, the implementation of step 473 may be: and printing the corresponding content scaling marker in the point code content page according to the marking position information of the content scaling marker to obtain the point code file.

It should be understood that each dot content page in the dot file herein includes a dot pattern, a page number mark, a content mark, and a content zoom mark.

In this embodiment, by setting the content scaling marker, it is possible to determine whether there is scaling in the content printed in the dot code content page, so that the absolute position of the content relative to the dot code content page is located according to the scaling, and further, the position mapping between the original content in the dot code content page and the handwriting of the writer is achieved.

Based on the above embodiment, referring to fig. 8, the method for generating a point code file provided in the present application may further include the following steps:

step 472: marking position information of the content rotation marker is acquired.

Wherein the content rotation markers include a third marker and a fourth marker, the content rotation markers for determining a rotation angle of content in the dot code content page relative to the entire dot code content page.

In some embodiments, the content rotation markers may also be disposed on two sides of the dot code content page, with reference to the content presented by the dot code content page and the content scaling markers, the specific positions of which are not limited in the embodiments of the present application.

The mark position information of the content rotation mark includes the position coordinate of the third mark, the position coordinate of the fourth mark, and the preset interval between the third mark and the fourth mark.

It should be noted that, the third marker and the fourth marker may be black marks, preset patterns, or other types, which is not limited in this embodiment of the present application.

Step 474: a dot code file containing the content rotation marker is generated based on the marker position information of the content rotation marker.

As an example, the third marker and the fourth marker may be respectively set at both sides of the dot code content page, and spaced apart from both sides of the dot code content page by a preset second distance.

Taking the point code content page as an example of A4 paper, the first distance may be any preset value such as 2cm, 3cm, etc.

In some embodiments, the implementation of step 474 may be: and printing the corresponding content rotation marker in the point code content page according to the marking position information of the content rotation marker to obtain the point code file.

It should be understood that each dot content page in the dot file herein includes a dot pattern, a page number mark, a content mark, and a content rotation mark.

In this embodiment, by setting the content rotation marker, it is possible to determine whether the content printed in the dot code content page rotates proportionally, so that the absolute position of the content relative to the dot code content page is located according to the proportional rotation, and further, the position mapping between the original content in the dot code content page and the handwriting of the writer is achieved.

Based on the above-described embodiment, referring to the dot code content page shown in fig. 9, content zoom markers, i.e., a first marker disposed on the left side and a second marker disposed on the right side, are disposed on both sides of the dot code content page; meanwhile, content rotation markers, namely, a third marker arranged on the left side and a fourth marker arranged on the right side, are also arranged on two sides of the point code content page.

Assuming that the center point coordinates of the first marker are (x 1, y 1) and the center point coordinates of the second marker are (x 2, y 2), the actual distance d1 of the content scaling marker can be calculated from the center point coordinates of the first marker and the second marker by the following formula (1).

（1）

Since the distance between the content scaling markers is a fixed pitch set in advance, assuming that the preset pitch of the content scaling markers is D1, whether or not there is scaling of the content printed in the dot code content page is calculated by the following formula (2). Wherein the scaling is set to r.

（2）/>

Further, assume that the rotation angle is set to

The rotation angle can be calculated by the following formula (3):

（3）

in some embodiments of the present invention, in some embodiments,

the corresponding data precision needs to be equal to or higher than the double-precision floating point number, namely at least the effective precision of 15 bits after decimal point is guaranteed.

As an example, the center point coordinates of the third marker is (x 3, y 3), and the center point coordinates of the fourth marker is (x 4, y 4), the content overall offset may be calculated from the first marker and the third marker set on the same side, or the second marker and the fourth marker set on the same side.

First, according to the rotation angle

Rotation is performed to bring the content back into position (rotation based on the coordinates of the third marker on the left), including the following two cases:

(1) If it is

Is greater than 0, then rotates anticlockwise, corresponding to the offset in the X direction>

And Y-direction offset->

See the following equations (4) and (5):

（4）

（5）

wherein, under the condition that the coordinate offset of the central point is 0,

is of radian and is->

。

(2) If it is

Less than 0, then rotate clockwise, the calculation formula is shown in formulas (6) - (9) below:

（6）

（7）

（8）

（9）

then, the third marker and the fourth marker are scaled, and the scaling is performed

(including the scaling in the X-direction and the Y-direction) can be calculated by the following formulas (10) - (11).

（10）

（11）

Finally, comparing with the preset x and y to obtain the relative offset value.

In addition, corresponding to the embodiment of the dot code file generation method, the application also provides a content review method for the dot code file generated by the dot code file generation method, and the content review method can ensure that a writer and a reviewer can determine a target writer corresponding to each content writing page under the condition that the writer and the reviewer can use a lattice pen, so that effective review can be performed, writing data contents corresponding to each writer can be accurately distinguished, and further, review results can be accurately fed back to the corresponding writers according to the distinction of the writing data contents.

Referring to fig. 10, an example of the content review method applied to the data management apparatus 120 shown in fig. 1 described above will be described, and the content review method may include the steps of:

step 1010: the method comprises the steps of obtaining writing content data acquired by a plurality of dot matrix pens from a dot code file, wherein the writing content data comprises a plurality of content writing pages, each content writing page corresponds to one dot code content page in the dot code file, and each content writing page comprises a page number mark and a content mark.

It should be appreciated that the written content data may include content written by a plurality of writers in a point code file, each writer corresponding to a point code file that includes at least one point code content page. In addition, the point code file in step 1010 may be a point code file generated by the embodiment of the point code file generating method described above.

As an exemplary scenario, assuming that 30 students take an examination, each student can answer in 3 test papers through a dot matrix pen binding with own identity information, wherein 3 test papers are a dot code file, and each test paper is a dot code content page. After the examination is finished, the written content data acquired by the 30-pivot pen from the point code file (3 test papers) comprises 90 (30×3=90) content written pages, and each written content page corresponds to one point code content page filled with answer content and comprises page number marks and content marks.

It should be appreciated that each pivot pen book writes content in several dot code content pages, and that the collected written content data includes several dot code content pages.

Step 1020: and determining a target writer corresponding to each content writing page based on the page number mark of each content writing page.

In some embodiments, the number of lattice pens and writers is the same, and each writer corresponds to one lattice pen, so that the target writer corresponding to the content writing page can be determined based on the writing content data collected by each lattice pen.

In one possible implementation, the implementation procedure of step 1020 may be: acquiring a first corresponding relation between the page number and the dot matrix pattern based on the dot code file; determining a dot matrix pattern corresponding to each content writing page according to the page number marks of each content writing page and the first corresponding relation; and determining a target writer corresponding to each content writing page according to the dot matrix pattern corresponding to each content writing page and binding identity information of the dot matrix pen for collecting each content writing page.

That is, according to the dot pattern read by the dot matrix pen, the page number mark of the content writing page written by the dot matrix pen is determined, so that according to the binding identity information of the dot matrix pen, the corresponding relation between the page number and the writer is determined, and the target writer corresponding to each content writing page is determined.

Step 1030: and based on the content marks of the content writing pages, reviewing the content writing pages to obtain the review results of the content writing pages.

In some embodiments, the implementation of step 1030 may be: based on the content marks of the content writing pages, standard filling content corresponding to the content writing pages is obtained; and according to the standard filling content, the filling content in each content writing page is reviewed.

Taking the above student examination scenario as an example, for 30 collected test papers (i.e. writing content data), each 3 test papers corresponds to 3 content writing pages, when the content written in each content writing page is reviewed, whether the content answered by the student is accurate or not can be judged by comparing with the standard filling content, so as to obtain the review result of each content writing page.

In this scenario, since each student corresponds to 3 test papers, each student corresponds to 3 review results.

In some embodiments, after determining the review results of each content writing page, the review results of each content writing page may be integrated according to the target writers corresponding to each content writing page, where each target writer after integration writes content in several point code content pages, each corresponding to one review result.

Further, the content review method further includes: and sending the review result of each written content page to the corresponding target writer according to the corresponding target writer of each written content page.

In the embodiment, under the condition that writers and reviewers use the lattice pen, the corresponding relation among writers, page numbers and contents is established by means of the point code file, so that target writers corresponding to the writing pages of each content are accurately determined, effective review is conducted on the writing pages of each content, review results are fed back to the corresponding target writers, and review efficiency and review result feedback accuracy are improved.

It is to be understood that embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises a computer program. When the computer program is loaded and run on a computer arrangement, the flow or functions according to the embodiments of the present application are fully or partially produced.

Wherein the computer program may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program may be transmitted from one website site, terminal, server, or data center to another website site, terminal, server, or data center by wired or wireless means.

The computer readable storage medium can be any available medium that can be accessed by a computer device or a data storage device such as a server, data center, etc. that contains an integration of one or more available media.

It should be understood that the foregoing is merely a specific implementation of the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application, and the embodiments may be mutually referred to and combined. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. The point code file generating method is characterized by comprising the following steps:

determining page marks and content marks corresponding to the writing pages in the initial file respectively, wherein the content marks corresponding to the writing pages needing to present the same content are the same;

and generating a point code file based on the page number marks, the content marks and the first corresponding relation which correspond to the writing pages respectively, wherein the point code file comprises at least one point code content page containing the dot matrix pattern, the page number marks and the content marks.

2. The method of claim 1, wherein if the initial file includes a blank page, the determining the content mark corresponding to the written page in the initial file includes:

acquiring the content to be printed corresponding to the blank page;

3. The method according to claim 1, wherein the method further comprises:

acquiring a file image corresponding to the point code file, wherein the file image comprises a content page image corresponding to at least one point code content page;

identifying page number marks and content marks corresponding to the point content pages in the point file respectively based on the file image;

and establishing a second corresponding relation between the page number marks and the content marks aiming at the point code file.

4. A method according to any one of claims 1 to 3, further comprising:

acquiring mark position information of a content scaling marker; the content scaling markers include a first marker and a second marker, the content scaling markers for determining an offset between content in the dot code content page relative to the dot code content page boundary;

And generating a point code file containing the content scaling marker based on the marking position information of the content scaling marker.

5. The method according to claim 4, wherein the method further comprises:

and generating a point code file containing the content rotation marker based on the marking position information of the content rotation marker.

6. A method according to any one of claims 1 to 3, wherein a first region preset in the dot content page comprises the page number mark, a second region preset in the dot content page comprises the content mark, and the first region and the second region are different.

7. A content review method, applied to a data management device, and the data management device is respectively connected with a plurality of lattice pens binding identity information of writers, comprising:

acquiring writing content data acquired by the lattice pens from a point code file, wherein the writing content data comprises a plurality of content writing pages, each content writing page corresponds to one point code content page in the point code file, and each content writing page comprises a page number mark and a content mark;

and based on the content marks of the content writing pages, reviewing the writing content in the content writing pages to obtain the review results of the content writing pages corresponding to the target writers respectively.

8. The method of claim 7, wherein the determining the target writer corresponding to each of the content pages based on the page number marks of each of the content pages comprises:

determining dot matrix patterns corresponding to the content writing pages according to page number marks of the content writing pages and the first corresponding relation;

9. The method of claim 7, wherein the reviewing written content in each of the content pages based on the content indicia of each of the content pages comprises:

and filling in the content according to the standard, and reviewing the written content in each content writing page.

10. The method according to any one of claims 7 to 9, further comprising:

and sending the review result of each written content page to the corresponding target writer according to the target writer corresponding to each written content page.

11. A content review system comprising a plurality of lattice pens and a data management device, wherein the plurality of lattice pens bind writer identity information, and each of the lattice pens is connected to the data management device;

the data management device is configured to establish a correspondence relationship among writers, page numbers, and contents according to the writer identity information and the written content data bound by the lattice pen, and perform the method of any one of claims 7 to 10.