CN110309703B - Method and system for intelligently adaptively identifying and cutting answer area of test paper - Google Patents
Method and system for intelligently adaptively identifying and cutting answer area of test paper Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
- G06V10/267—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion by performing operations on regions, e.g. growing, shrinking or watersheds
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
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Abstract
The invention relates to the technical field of image processing, and particularly discloses a method and a system for intelligently adaptively identifying and cutting answer areas of test paper. The method comprises the steps of allowing adjustment of the format of a test paper, recording adjusted test paper information to generate a two-dimensional code, combining the two-dimensional code and the content of the test paper in an associated mode to generate a file with a certain format, analyzing the file to obtain answer area position information, and establishing a test paper information storage table to associate the answer area position information with the test paper information and store the answer area position information and the test paper information in the test paper information storage table. After the test paper is answered, the test paper information is obtained through the two-dimensional code, the corresponding answer area position information is obtained from the test paper information storage table, and cutting is carried out.
Description
Technical Field
The invention relates to the technical field of image processing, and particularly discloses a method and a system for intelligently adaptively identifying and cutting answer areas of test paper.
Background
With the continuous development of the artificial intelligent image processing technology, the correction of the test paper on the intelligent paper correcting system is mostly adopted in the education industry of schools, so that the artificial correction cost can be greatly saved, and the like. In this way, the intelligent paper changing system needs to cut the answer area of the test paper, and how to automatically and accurately cut the test paper is a very important position in this paper changing way.
Generally, one test paper has only one printing effect, the answer area of each page is relatively fixed, but different users may be adjusted in the process of repeated use, for example, sometimes the test paper is printed with a plurality of test papers after the user gives a printing version, but the answer area or the number of characters is found to have better printing effect when adjusted, so that a new printing version is adjusted again, even the number of pages may be changed, in this case, if the old version is discarded and not used, resource waste is caused, but if the new version and the old version are used simultaneously, the intelligent paper changing system is difficult to cut the answer area.
Therefore, a method for solving the above problems is required.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a method and a system for intelligently adaptively identifying and cutting answer areas of test paper.
In order to achieve the above purpose, the present invention adopts the following scheme.
A method for intelligently adaptively identifying and cutting answer areas of test paper comprises the steps of setting logic test paper and cutting the answer areas of the test paper;
the logic test paper setting comprises the following steps:
acquiring test paper after the questions are grouped, adjusting the format of the test paper, and recording the content and information of the test paper;
generating a two-dimensional code according to the test paper information, performing association combination on the two-dimensional code and corresponding test paper content, and generating an uneditable format file;
analyzing the position of an answer area of the generated non-editable format file, establishing a test paper information storage table, associating the position information of the answer area with the test paper information and storing the answer area and the test paper information in the test paper information storage table;
the test paper answer area cutting comprises the following steps:
acquiring the answered test paper image, and cutting according to the position information of the answer area;
the adjusting the format of the test paper and recording the test paper content and the test paper information comprises the following steps:
adjusting the format of the test paper; the adjustment of the test paper format comprises the adjustment of font size, the adjustment of frame margin and the adjustment of spacing paragraph;
displaying the effect of the current test paper image in a preview mode, and correspondingly adjusting the position of an answer area;
recording the adjusted paper number paper _ id, the paper version number print _ version and the html page of the current paper content;
the generating of the two-dimensional code according to the test paper information, the association combination of the two-dimensional code and the corresponding test paper content, and the generation of the non-editable format file comprise:
acquiring the adjusted test paper, and generating a two-dimensional code according to the test paper number paper _ id and the test paper version number print _ version;
performing association combination on the html page of the current test paper content and the two-dimensional code to generate and store a non-editable format file, wherein a storage path is recorded in a path storage file save _ path; wherein the uneditable format files comprise pdf format files and jpg format files;
the analyzing the position of the answer area of the generated non-editable format file, establishing a test paper information storage table, associating the position information of the answer area with the test paper information and storing the answer area and the test paper information into the test paper information storage table comprises the following steps:
analyzing the total page number total _ pages of the uneditable format file and answer area position information paper _ info of each page;
and establishing a test paper information storage table, and storing the total number of pages total _ pages, answer area position information paper _ info of each page, the test paper number paper _ id corresponding to the answer area position information paper _ info, the test paper version number print _ version and the path storage save _ path into the test paper information storage table.
Preferably, the obtaining of the answered test paper image and the cutting according to the answer area position information include:
monitoring the catalog of the answered test paper images in real time to obtain the answered test paper images;
identifying the two-dimensional code on the answered test paper image, and acquiring a test paper number paper _ id and a test paper version number print _ version;
inquiring corresponding answer area position information paper _ info from the test paper information storage table according to the test paper number paper _ id and the test paper version number print _ version;
and cutting the answered test paper image according to the answer area position information paper _ info, and merging the answer area pictures cut from the same test paper into the name list of the same student.
A system for intelligently adaptively identifying and cutting answer regions of test paper, comprising:
the printing effect previewing and adjusting module is used for adjusting the format of the test paper, wherein the adjustment of the format of the test paper comprises the adjustment of font size, the adjustment of frame margin and the adjustment of spacing paragraph, and the effect of the current test paper image is displayed in a previewing mode and the position of an answer area is adjusted; recording the adjusted paper number paper _ id, the paper version number print _ version and the html page of the current paper content;
the intelligent rendering module is used for generating two-dimensional codes, performing association combination on the two-dimensional codes and corresponding test paper contents, and generating a non-editable format file; acquiring the adjusted test paper, and generating a two-dimensional code according to the test paper number paper _ id and the test paper version number print _ version; performing association combination on the html page of the current test paper content and the two-dimensional code to generate and store a non-editable format file, wherein a storage path is recorded in a path storage file save _ path; wherein the uneditable format files comprise pdf format files and jpg format files;
the test paper information storage module is used for storing a test paper information storage table; establishing a test paper information storage table, and storing the total page number total _ pages, the answer area position information per page, the corresponding test paper number paper _ id, the test paper print _ version and the path storage save _ path into the test paper information storage table;
and the intelligent cutting module is used for cutting the answer area of the answered test paper image and merging the answer area pictures cut from the same test paper into the name book of the same student.
The invention has the beneficial effects that: the method and the system allow the format of the test paper to be adjusted, record the adjusted test paper information to generate a two-dimensional code, combine the two-dimensional code and the test paper content in an associated manner to generate a file with a certain format, analyze the file to obtain the position information of the answer area, and establish a test paper information storage table so as to associate the position information of the answer area with the test paper information and store the position information of the answer area in the test paper information storage table. After the test paper is answered, the test paper information is obtained through the two-dimensional code, the corresponding answer area position information is obtained from the test paper information storage table, and cutting is carried out.
Drawings
Fig. 1 is a schematic diagram of system modules according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of logical test paper setting according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a cutting answer area according to an embodiment of the invention.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
A method for intelligently adaptively identifying and cutting answer areas of test paper comprises two steps of setting logic test paper and cutting answer areas of the test paper, wherein the setting of the logic test paper mainly comprises the steps of recording relevant processes such as test paper adjustment information, and the cutting of the answer areas of the test paper mainly comprises the steps of analyzing the relevant information recorded in the previous setting step of the logic test paper and accurately cutting the answer areas on answered test paper images.
As shown in fig. 2, firstly, the user selects various types of questions from the question bank according to needs to combine a test paper, and then the test paper is printed after checking the test paper without errors. When the effect of printing in the test paper printing process is not good, the format of the test paper needs to be adjusted, so that the test paper after the question is formed is firstly obtained, the format of the test paper is adjusted, and the content and the information of the test paper are recorded; the test paper information is mainly used for generating a two-dimensional code, and includes but is not limited to a test paper number paper _ id, a test paper version number print _ version and which adjustment operations are performed; the recorded test paper content is mainly used for being associated and combined with the two-dimensional code generated subsequently.
Preferably, the print effect preview and adjustment module in the system adjusts the test paper format, including adjusting font size, frame margin, and interval paragraph; meanwhile, the effect of the current test paper image is displayed in a previewing mode, the position of the answer area is correspondingly adjusted, the adjustment of the answer area can be recorded as a reference for subsequently analyzing the position information of the answer area on the non-editable format file, the position of the answer area can be further accurately determined through comparing the reference, and further guarantee is provided for the cutting position. And then recording the adjusted paper number paper _ id, the paper version number print _ version and the html page of the current paper content.
After the steps are completed, the system can generate a two-dimensional code by combining the test paper information such as the test paper number paper _ id, the test paper version number print _ version and the like, combine the html page of the current test paper content and the two-dimensional code in a correlation manner, generate and store an uneditable format file, and record the storage path in the path storage file save _ path. Generating the non-editable format file can prevent the position from being changed due to misoperation, and the non-editable format file does not correspond to the determined answer area, wherein the non-editable format file comprises a pdf format file, a jpg format file and the like, fig. 2 is a pdf format as an example, and other file types with fixed formats can be used, and the pdf format is preferred. To distinguish files of different formats, the name of the path storage file save _ path can be distinguished, such as the name pdf _ save _ path in fig. 2.
And performing answer area position analysis on the generated non-editable format file. The answer area position analysis may be to set a positioning point on the answer area on the test paper, where the positioning point follows the adjustment of the answer area of the test paper, for example, assuming that the position coordinate of the positioning point is (x, y), the positioning point becomes (x +1, y + 2) along with the adjustment of the test paper format, and then the (x +1, y + 2) position of the positioning point is obtained by identifying the positioning point of the answer area. Or, the position of the test paper can be obtained by performing recognition according to the previously recorded adjustment operation, for example, the distance between the test paper is adjusted by 1.5 times, and the answer area is also adjusted by 1.5 times on the original basis.
And establishing a test paper information storage table, and associating and storing answer area position information and test paper information into the test paper information storage table as shown in fig. 2. Preferably, total pages of total _ pages of non-editable format files and answer area position information per page, paper _ info, a test paper information storage table is established, the total pages of total _ pages, the answer area position information per page, paper _ id of a test paper number, the test paper version number, and the path storage pdf _ save _ page of each page are stored in the test paper information storage table, so that a corresponding relation is established between the information of the test paper and the answer area information, the answer area position information can be quickly and correspondingly obtained from the test paper information storage table only by identifying some information from the two-dimensional codes, and the test paper with the same adjusted format can be distinguished through the two-dimensional codes.
When the answer area of the test paper is cut, as shown in fig. 3, the answered test paper is put into a scanner for scanning, wherein the scanner can be connected with an internet computer, and then the scanned test paper image is automatically uploaded to a corresponding position. The system monitors the catalog of the answered test paper images in real time, acquires the answered test paper images, then identifies the two-dimensional codes on the answered test paper images, and acquires the test paper number paper _ id and the test paper version number print _ version; inquiring corresponding answer area position information paper _ info from the test paper information storage table according to the test paper number paper _ id and the test paper version number print _ version; and cutting the answered test paper image according to the answer area position information paper _ info.
Then, the answer area pictures cut from the same test paper can be combined under the name books of the same student according to the study numbers in the test paper, the name book of each student after combination is a complete test paper for answering, and after a score is given by a subsequent teacher when the test paper is changed, the system can automatically count the score into the name book of the student.
Relevant information is obtained by scanning the two-dimensional code, then automatic jumping is carried out to the test paper information storage table to obtain answer area position information, whole-process intelligent identification is completed, manual input is not needed, and low efficiency caused by manual input errors and other reasons is avoided.
The invention provides a method and a system for intelligently adaptively identifying and cutting answer areas of test paper, which allow the format of the test paper to be adjusted, record the adjusted test paper information to generate a two-dimensional code, combine the two-dimensional code and the test paper content in an associated manner to generate a file with a certain format, analyze the file to obtain the position information of the answer area, and establish a test paper information storage table to associate the position information of the answer area with the test paper information and store the position information of the answer area in the test paper information storage table. After the test paper is answered, the test paper information is obtained through the two-dimensional code, the corresponding answer area position information is obtained from the test paper information storage table, and cutting is carried out.
In addition, the present invention also provides a system for intelligently adaptively identifying and cutting answer areas of test paper, as shown in fig. 1, including: the printing effect previewing and adjusting module is used for adjusting the format of the test paper, displaying the effect of the current test paper image in a previewing mode and adjusting the position of the answer area; the intelligent rendering module is used for generating two-dimensional codes, performing association combination on the two-dimensional codes and corresponding test paper contents, and generating a non-editable format file; the test paper information storage module is used for storing a test paper information storage table; and the intelligent cutting module is used for cutting the answer area of the answered test paper image and merging the answer area pictures cut from the same test paper into the name book of the same student.
The two-dimensional code on the test paper processed by the system records the number and the printing version of the test paper, and the content (including the title, the answer, the analysis and the like) of the test paper is separated from the printing of the test paper. The printed test paper can correspond to a logical test paper on the system, and the condition that the number of the test paper on the system is increased rapidly due to the fact that the printed test paper after adjustment corresponds to the same test paper number is avoided.
It should be noted that, as will be understood by those skilled in the art: all or part of the steps for implementing the method can be implemented by hardware related to program instructions, the program instructions can be stored in a computer readable storage medium or storage device, and the program instructions execute the steps of the bargaining management method when executed; and the aforementioned storage media or storage devices include, but are not limited to: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Accordingly, the embodiment of the present invention also provides a computer readable storage device, which stores a computer program, and the computer program is executed by a processor to implement the method.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (3)
1. A method for intelligently adaptively identifying and cutting answer areas of test paper is characterized by comprising the steps of setting logical test paper and cutting the answer areas of the test paper;
the logic test paper setting comprises the following steps:
acquiring test paper after the questions are grouped, adjusting the format of the test paper, and recording the content and information of the test paper;
generating a two-dimensional code according to the test paper information, performing association combination on the two-dimensional code and corresponding test paper content, and generating an uneditable format file;
analyzing the position of an answer area of the generated non-editable format file, establishing a test paper information storage table, associating the position information of the answer area with the test paper information and storing the answer area and the test paper information in the test paper information storage table;
the test paper answer area cutting comprises the following steps:
acquiring the answered test paper image, and cutting according to the position information of the answer area;
the adjusting the format of the test paper and recording the test paper content and the test paper information comprises the following steps:
adjusting the format of the test paper; the adjustment of the test paper format comprises the adjustment of font size, the adjustment of frame margin and the adjustment of spacing paragraph;
displaying the effect of the current test paper image in a preview mode, and correspondingly adjusting the position of an answer area;
recording the adjusted paper number paper _ id, the paper version number print _ version and the html page of the current paper content;
the generating of the two-dimensional code according to the test paper information, the association combination of the two-dimensional code and the corresponding test paper content, and the generation of the non-editable format file comprise:
acquiring the adjusted test paper, and generating a two-dimensional code according to the test paper number paper _ id and the test paper version number print _ version;
performing association combination on the html page of the current test paper content and the two-dimensional code to generate and store a non-editable format file, wherein a storage path is recorded in a path storage file save _ path; wherein the uneditable format files comprise pdf format files and jpg format files;
the analyzing the position of the answer area of the generated non-editable format file, establishing a test paper information storage table, associating the position information of the answer area with the test paper information and storing the answer area and the test paper information into the test paper information storage table comprises the following steps:
analyzing the total page number total _ pages of the uneditable format file and answer area position information paper _ info of each page;
and establishing a test paper information storage table, and storing the total number of pages total _ pages, answer area position information paper _ info of each page, the test paper number paper _ id corresponding to the answer area position information paper _ info, the test paper version number print _ version and the path storage save _ path into the test paper information storage table.
2. The method as claimed in claim 1, wherein the obtaining of the answered image of the test paper and the cutting according to the position information of the answer area comprises:
monitoring the catalog of the answered test paper images in real time to obtain the answered test paper images;
identifying the two-dimensional code on the answered test paper image, and acquiring a test paper number paper _ id and a test paper version number print _ version;
inquiring corresponding answer area position information paper _ info from the test paper information storage table according to the test paper number paper _ id and the test paper version number print _ version;
and cutting the answered test paper image according to the answer area position information paper _ info, and merging the answer area pictures cut from the same test paper into the name list of the same student.
3. A system for intelligently and adaptively identifying and cutting answer areas of test paper is characterized by comprising:
the printing effect previewing and adjusting module is used for adjusting the format of the test paper, wherein the adjustment of the format of the test paper comprises the adjustment of font size, the adjustment of frame margin and the adjustment of spacing paragraph, and the effect of the current test paper image is displayed in a previewing mode and the position of an answer area is adjusted; recording the adjusted paper number paper _ id, the paper version number print _ version and the html page of the current paper content;
the intelligent rendering module is used for generating a two-dimensional code, performing association combination on the two-dimensional code and corresponding test paper content, generating a non-editable format file, acquiring the adjusted test paper, and generating the two-dimensional code according to the test paper number paper _ id and the test paper version number print _ version; performing association combination on the html page of the current test paper content and the two-dimensional code to generate and store a non-editable format file, wherein a storage path is recorded in a path storage file save _ path; wherein the uneditable format files comprise pdf format files and jpg format files;
the test paper information storage module is used for storing a test paper information storage table, and comprises total pages total _ pages of the uneditable format file and answer area position information paper _ info of each page;
establishing a test paper information storage table, and storing total pages total _ pages, answer area position information paper _ info of each page, a test paper number paper _ id corresponding to the answer area position information paper _ info, a test paper version number print _ version and a path storage save _ path into the test paper information storage table;
and the intelligent cutting module is used for cutting the answer area of the answered test paper image and merging the answer area pictures cut from the same test paper into the name book of the same student.
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| 基于图像识别的无纸化阅卷空白题识别技术研究;林开彬;《中国优秀硕士学位论文全文数据库 信息科技辑》;20160315;第2016年卷(第3期);I138-6541 * |
| 答题卡图像识别系统研究与实现;郭崧;《中国优秀硕士学位论文全文数据库 信息科技辑》;20180315;第2018年卷(第3期);I138-1327 * |
| 纸卷数字化和图像识别在网上阅卷中的应用;刘胜强;《中国优秀硕士学位论文全文数据库 信息科技辑》;20110415;第2011年卷(第4期);I138-891 * |
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