CN107045635A - A kind of paper image paging sub title processing method of online paper-marking system - Google Patents
A kind of paper image paging sub title processing method of online paper-marking system Download PDFInfo
- Publication number
- CN107045635A CN107045635A CN201710068748.9A CN201710068748A CN107045635A CN 107045635 A CN107045635 A CN 107045635A CN 201710068748 A CN201710068748 A CN 201710068748A CN 107045635 A CN107045635 A CN 107045635A
- Authority
- CN
- China
- Prior art keywords
- paper
- topic
- locative
- marking block
- page
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- 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
-
- G—PHYSICS
- 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
- G06V10/24—Aligning, centring, orientation detection or correction of the image
- G06V10/245—Aligning, centring, orientation detection or correction of the image by locating a pattern; Special marks for positioning
-
- G—PHYSICS
- 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
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- G06V30/153—Segmentation of character regions using recognition of characters or words
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
-
- G—PHYSICS
- 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
- G06V30/10—Character recognition
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention proposes a kind of paper image paging sub title processing method of online paper-marking system, comprises the following steps：Obtain pending paper image；Obtain Examination Paper Template data, including page locative marking block data and topic locative marking block data；Page cutting process is carried out to the pending paper image according to page locative marking block data；Topic cutting process is carried out to the pending paper image according to topic locative marking block data, wherein, the corresponding templates information that the Examination Paper Template data preserve for acquisition system after the Quick Response Code identification in pending paper.The paper image paging sub title processing method of online paper-marking system proposed by the present invention, accurately can cut paging by paper image and further preserve the cutting classification of each topic, the topic after cutting is easy to display to check, particularly on mobile device.
Description
Technical field
The present invention relates to image processing field, and at the paper image paging sub title of more particularly to a kind of online paper-marking system
Reason method.
Background technology
In recent years, develop with the continuous upgrading of information technology, the use of mobile terminal device is increasingly popularized, more
It is convenient and swift, efficiently work, mode of learning is favored all the more by people.In traditional education sector, gradually carry out
The IT application in education sector upgrading of a new generation is explored.Existing basic education stage, the main investigation shape of Students ' Learning situation at home
Formula is still various types of examinations, greatly to college entrance examination, in examine, the as low as operation of basic unit teacher everyday home, modular examination, and respectively
The interim final examination of class, nationwide examination for graduation qualification, hold examination jointly, mould is examined.In this situation, teacher bears the very big work corrected students' papers with paper
Work amount pressure.
Thus all kinds of standardization auxiliary methods of examination have gradually been used in all kinds of large-scale examinations, such as optical character reader (OCR)
(Optical Mark Reader, OMR) carries out the mode of answering card automatic marking processing.Optical character reader (OCR) optical scanner
Method recognizes the mark for printing or writing by certain format, and is converted into the receptible electric signal of computer, so that real
Existing automatic marking.The advantage of optical character reader (OCR) is that, for height cooperation, satisfactory answering card, it reads accurate (i.e. to paint point
Identification have a high accuracy, the bit error rate is less than thousand a ten thousandths), reading rate it is fast, more than 1,000 can be handled each second
Information point (processing speed in terms of A4 breadths, per hour five thousand sheets).This processing mode largely alleviates teacher comment
The workload pressure of paper, but it there is also many shortcomings, such as a whole set of hardware device is expensive, answering card quality requirement is severe
Carve, be only capable of processing objective item and subjective item can not be handled and corrected, so, so far, except in large-scale important choice class examination
Can be by using outer in (college entrance examination, in examine), other more conventional examinations work of going over examination papers can not use the system.
Therefore, the online paper-marking system occurred therewith, particular for objective item, passes through electron scanning, image recognition technology
Automatic scoring is realized, efficiency of going over examination papers is substantially increased.Made at present using the net marking of computer networking technology and scanning technique
For a kind of new mode of marking examination papers, obtain widely applying.Its method is, first by examinee's answering card by high speed scanner, with
Image mode is scanned in system from cover to cover, is formed electronic edition test paper, is not made any to the original image of examinee during being somebody's turn to do
Identity change, make scanning into system electronic edition test paper with examinee it is actual answer the questions in a test paper it is completely the same and all kinds of by computer
Storage device is stored and managed.
Image recognition software recognizes the printed locative marking block in answering card periphery (the size mark of these tag blocks first
Accurate, blackness standard, easily identification), the coordinate system of image is set up accordingly.Image recognition software is according to having stored in internal memory
The printing position (relative to the position of tag block) of the respective option, positions position of the respective option of each problem on image and (sits
Mark).Centered on these positions, the pixel (scope generally than allowing answer person to apply is smaller) of certain area is chosen, is calculated
The summation of the gray value of all pixels, is compared, being considered as answer person higher than it coats with some threshold value in each region
(have selected this option).The set of choices identified and model answer is compared in image recognition software, determines answer person
Whether the answer of every problem in painting is correct.
, it is necessary to carry out cutting page operations to obtained paper image after online paper-marking system is scanned operation to paper,
The paper image of A3 sizes is cut into the paper paging image of A4 sizes, is easy to subsequent operation and storage；By original examination
Volume image progress is cut after the paper paging image completion obtained after page operations, is also needed to the examination on paper paging image sometimes
Topic carries out operation of keeping to the point, and each examination question image is cut out, is easy to classify and stores.
It is by original paper mould when needing the paper image progress to online paper-marking system to cut page and operation pertinent to the point
Locating piece coordinate on plate recognizes paper picture that scanning is obtained, due to the paper of different Paper Printings, its locating piece
Coordinate can be changed, and also resulted in the changes in coordinates of locating piece during follow up scan because paper is out of alignment, at this moment needed
Manually go to be adjusted, expend more time, operation is cumbersome, is not easy to the substantial amounts of paper of batch processing.
The content of the invention
The present invention proposes a kind of paper image paging sub title processing method of online paper-marking system, can be accurately by paper figure
Preserved as cutting paging and further by the cutting classification of each topic, the topic after cutting is easy to display to check, particularly moved
In equipment.
In order to achieve the above object, the present invention proposes a kind of paper image paging sub title processing side of online paper-marking system
Method, comprises the following steps：
Obtain pending paper image；
Obtain Examination Paper Template data, including page locative marking block data and topic locative marking block data；
Page cutting process is carried out to the pending paper image according to page locative marking block data；
Topic cutting process is carried out to the pending paper image according to topic locative marking block data,
Wherein, the Examination Paper Template data preserve for acquisition system after the Quick Response Code identification in pending paper
Corresponding templates information.
Further, the page locative marking block data include the girth and area number of single page locative marking block
According to.
Further, when in the girth and area data and template of page locative marking block in the pending paper
Normal data error is identified as actual pages locative marking block when within 5%.
Further, the page locative marking block data also include the level between two neighboring page locative marking block
Range data.
Further, removed and misidentified according to the horizontal range data between two neighboring page locative marking block in template
Page locative marking block.
Further, the topic locative marking block data include the girth and area number of single topic locative marking block
According to.
Further, when in the girth and area data and template of topic locative marking block in the pending paper
Normal data error is identified as actual topic locative marking block when within 5%.
Further, the topic locative marking block data also include the level between two neighboring topic locative marking block
Range data.
Further, removed and misidentified according to the horizontal range data between two neighboring topic locative marking block in template
Topic locative marking block.
Further, it is described that page cutting process is carried out to paper image for according to each two adjacent page locative marking block
Original paper is subjected to cutting paging.
Further, it is described to carry out topic cutting process to paper image to position mark according to the parallel topic of two rows
Remember that block, as four point coordinates of current question, the topic is cut.
The paper image paging sub title processing method of online paper-marking system proposed by the present invention, by Examination Paper Template data
Page locative marking block data and topic locative marking block data, recognize the page locative marking block and topic in actual paper
Locative marking block, and remove the locative marking block of misrecognition, by the adjacent page locative marking block of each two by paper figure
As cutting paging, by four point coordinates of the parallel topic locative marking block of two rows as current question, by the topic
Cut.By the way that original paper is carried out after cutting paging and topic cutting process, being easy to classify to each topic preserves, after
Continuous check also can be more convenient, also allows for being checked on the mobile apparatus while single topic carries out preservation.
Brief description of the drawings
Fig. 1 show the paper image paging sub title process flow of the online paper-marking system of present pre-ferred embodiments
Figure.
Embodiment
The embodiment of the present invention is provided below in conjunction with accompanying drawing, but the invention is not restricted to following embodiment.Root
According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing is using very simple
The form of change and use non-accurately ratio, be only used for conveniently, lucidly aid in illustrating the embodiment of the present invention purpose.
Fig. 1 is refer to, Fig. 1 is shown at the paper image paging sub title of the online paper-marking system of present pre-ferred embodiments
Manage method flow diagram.The present invention proposes a kind of paper image paging sub title processing method of online paper-marking system, including following step
Suddenly：
Step S100：Obtain pending paper image；
Step S200：Obtain Examination Paper Template data, including page locative marking block data and topic locative marking block data；
Step S300：Page cutting process is carried out to the pending paper image according to page locative marking block data；
Step S400：Topic cutting process is carried out to the pending paper image according to topic locative marking block data.
According to present pre-ferred embodiments, the Examination Paper Template data are the Quick Response Code identification in pending paper
The corresponding templates information that system is preserved is obtained afterwards.A large amount of Examination Paper Template data are preserved in the database of online paper-marking system, are led to
The Quick Response Code recognized on pending paper is crossed, the corresponding Examination Paper Template information of pending paper, including standard page can be found
Face locative marking block data and topic locative marking block data.
The page locative marking block data include the girth and area data of single page locative marking block.Treated when described
Normal data error in the paper of processing in the girth and area data and template of the page locative marking block when within 5%,
It is identified as actual pages locative marking block.When black side of the appearance similar to locative marking block in the pending paper
Normal data error in block, its girth and area data and template will not be identified as actual pages more than 5%, then and determine
Position tag block.Avoid black bars pollution misrecognition present on the black bars or paper of full-filling answer during student's answer
For page locative marking block.
Further, the page locative marking block data also include the level between two neighboring page locative marking block
Range data.Determined according to the page that the horizontal range data between two neighboring page locative marking block in template remove misrecognition
Position tag block.When the page that misrecognition is removed by the girth and area data in previous step by page locative marking block is determined
After the tag block of position, the page locative marking block and undiscovered situation, such as student's answer of part misrecognition can be also there is
When full-filling answer black bars or paper present on black bars pollution miss, in its girth and area data and template
Normal data error is when within 5%, although the possibility that case above occurs is very low, but in theory or in the presence of certain
Possibility, now its can be misidentified as page locative marking block, it is therefore desirable to positioned according to the two neighboring page in template
Horizontal range data between tag block remove the page locative marking block of misrecognition, the page locative marking block and phase of misrecognition
Horizontal range between adjacent page locative marking block can be less than the normal data in template, by the page for judging away misrecognition
Face locative marking block.By above-mentioned two-step pretreatment, the page locative marking block of misrecognition can be filtered completely, it is ensured that data it is accurate
Property.
According to present pre-ferred embodiments, the topic locative marking block data include the week of single topic locative marking block
Long and area data.Further, when the girth and area data and mould of topic locative marking block in the pending paper
Normal data error in plate is identified as actual topic locative marking block when within 5%.When the pending paper
Normal data error in the middle black bars occurred similar to locative marking block, its girth and area data and template is 5%
More than, then it will not be identified as actual topic locative marking block.Avoid the black bars of full-filling answer during student's answer or
Black bars pollution is mistakenly identified as topic locative marking block present on person's paper.
The topic locative marking block data also include the horizontal range data between two neighboring topic locative marking block.
Further, the topic for removing misrecognition according to the horizontal range data between two neighboring topic locative marking block in template is determined
Position tag block.When the topic that misrecognition is removed by the girth and area data in previous step by topic locative marking block is determined
After the tag block of position, the topic locative marking block and undiscovered situation, such as student's answer of part misrecognition can be also there is
When full-filling answer black bars or paper present on black bars pollution miss, in its girth and area data and template
Normal data error is when within 5%, although the possibility that case above occurs is very low, but in theory or in the presence of certain
Possibility, now its can be misidentified as topic locative marking block, it is therefore desirable to positioned according to two neighboring topic in template
Horizontal range data between tag block remove the topic locative marking block of misrecognition, the topic locative marking block and phase of misrecognition
Horizontal range between adjacent topic locative marking block can be less than the normal data in template, by the topic for judging away misrecognition
Mesh locative marking block.By above-mentioned two-step pretreatment, the topic locative marking block of misrecognition can be filtered completely, it is ensured that data it is accurate
Property.
It is described that page cutting process is carried out to paper image for according to each two adjacent page according to present pre-ferred embodiments
Original paper is carried out cutting paging by face locative marking block.Two above and below according to the progress topic cutting process to paper image
The parallel topic locative marking block of row is cut the topic as four point coordinates of current question.All cutting process
After the completion of, whole paper is divided into independent examination question, subsequently can carry out classification preservation according to the type of different topics, can be with
Addition label is easy to classify or inquired about, while being also convenient for being checked on the mobile apparatus.
In summary, the paper image paging sub title processing method of online paper-marking system proposed by the present invention, passes through paper
Page locative marking block data and topic locative marking block data in template data, recognize the page positioning mark in actual paper
Remember block and topic locative marking block, and remove the locative marking block of misrecognition, pass through the adjacent page telltale mark of each two
Paper image is cut paging by block, by four point coordinates of the parallel topic locative marking block of two rows as current question,
The topic is cut.By the way that original paper is carried out after cutting paging and topic cutting process, it is easy to each topic
Classification is preserved, and subsequent query is checked also can be more convenient, also allows for carrying out on the mobile apparatus while single topic carries out preservation
Check.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.Skill belonging to of the invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (11)
1. the paper image paging sub title processing method of a kind of online paper-marking system, it is characterised in that comprise the following steps：
Obtain pending paper image；
Obtain Examination Paper Template data, including page locative marking block data and topic locative marking block data；
Page cutting process is carried out to the pending paper image according to page locative marking block data；
Topic cutting process is carried out to the pending paper image according to topic locative marking block data,
Wherein, the correspondence that the Examination Paper Template data preserve for acquisition system after the Quick Response Code identification in pending paper
Template Information.
2. the paper image paging sub title processing method of online paper-marking system according to claim 1, it is characterised in that institute
State girth and area data of the page locative marking block data including single page locative marking block.
3. the paper image paging sub title processing method of online paper-marking system according to claim 2, it is characterised in that when
Normal data error in the pending paper in the girth and area data and template of page locative marking block 5% with
When interior, actual pages locative marking block is identified as.
4. the paper image paging sub title processing method of online paper-marking system according to claim 1, it is characterised in that institute
Stating page locative marking block data also includes the horizontal range data between two neighboring page locative marking block.
5. the paper image paging sub title processing method of online paper-marking system according to claim 4, it is characterised in that root
The page locative marking block of misrecognition is removed according to the horizontal range data between two neighboring page locative marking block in template.
6. the paper image paging sub title processing method of online paper-marking system according to claim 1, it is characterised in that institute
State girth and area data of the topic locative marking block data including single topic locative marking block.
7. the paper image paging sub title processing method of online paper-marking system according to claim 6, it is characterised in that when
Normal data error in the pending paper in the girth and area data and template of topic locative marking block 5% with
When interior, actual topic locative marking block is identified as.
8. the paper image paging sub title processing method of online paper-marking system according to claim 1, it is characterised in that institute
Stating topic locative marking block data also includes the horizontal range data between two neighboring topic locative marking block.
9. the paper image paging sub title processing method of online paper-marking system according to claim 8, it is characterised in that root
The topic locative marking block of misrecognition is removed according to the horizontal range data between two neighboring topic locative marking block in template.
10. the paper image paging sub title processing method of online paper-marking system according to claim 1, it is characterised in that
It is described to carry out page cutting process to paper image to be cut original paper according to each two adjacent page locative marking block
Cut paging.
11. the paper image paging sub title processing method of online paper-marking system according to claim 1, it is characterised in that
It is described to carry out topic cutting process to paper image to be used as current question according to the parallel topic locative marking block of two rows
Four point coordinates, the topic is cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068748.9A CN107045635A (en) | 2017-02-08 | 2017-02-08 | A kind of paper image paging sub title processing method of online paper-marking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068748.9A CN107045635A (en) | 2017-02-08 | 2017-02-08 | A kind of paper image paging sub title processing method of online paper-marking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107045635A true CN107045635A (en) | 2017-08-15 |
Family
ID=59544452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710068748.9A Pending CN107045635A (en) | 2017-02-08 | 2017-02-08 | A kind of paper image paging sub title processing method of online paper-marking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107045635A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276340A (en) * | 2019-05-28 | 2019-09-24 | 杭州布谷科技有限责任公司 | Answer sheet generates and recognition methods and device |
| CN113177435A (en) * | 2021-03-31 | 2021-07-27 | 新东方教育科技集团有限公司 | Test paper analysis method and device, storage medium and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334814A (en) * | 2008-04-28 | 2008-12-31 | 华北电力大学 | Automatic scanning and reading system and reading method |
| CN103500216A (en) * | 2013-09-30 | 2014-01-08 | 北京林业大学 | Method for extracting file information |
| CN104820835A (en) * | 2015-04-29 | 2015-08-05 | 岭南师范学院 | Automatic examination paper marking method for examination papers |
| CN106023698A (en) * | 2016-07-29 | 2016-10-12 | 李铧 | Automatic reading and amending method for homework and exercise books |
-
2017
- 2017-02-08 CN CN201710068748.9A patent/CN107045635A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334814A (en) * | 2008-04-28 | 2008-12-31 | 华北电力大学 | Automatic scanning and reading system and reading method |
| CN103500216A (en) * | 2013-09-30 | 2014-01-08 | 北京林业大学 | Method for extracting file information |
| CN104820835A (en) * | 2015-04-29 | 2015-08-05 | 岭南师范学院 | Automatic examination paper marking method for examination papers |
| CN106023698A (en) * | 2016-07-29 | 2016-10-12 | 李铧 | Automatic reading and amending method for homework and exercise books |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276340A (en) * | 2019-05-28 | 2019-09-24 | 杭州布谷科技有限责任公司 | Answer sheet generates and recognition methods and device |
| CN113177435A (en) * | 2021-03-31 | 2021-07-27 | 新东方教育科技集团有限公司 | Test paper analysis method and device, storage medium and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110008933B (en) | Universal intelligent marking system and method | |
| CN111753767B (en) | Method and device for automatically correcting operation, electronic equipment and storage medium | |
| CN109993112B (en) | Method and device for identifying table in picture | |
| CN107067399A (en) | A kind of paper image segmentation processing method | |
| CN107832768A (en) | Efficient method to go over files and marking system based on deep learning | |
| CN110597806A (en) | Wrong question set generation and answer statistics system and method based on reading and amending identification | |
| CN104143094A (en) | Test paper automatic test paper marking processing method and system without answer sheet | |
| CN109242856A (en) | A kind of papery operation electronization reads and makes comments method and device | |
| CN107066939A (en) | A kind of paper cutting process method of online paper-marking system | |
| CN110689013A (en) | Automatic marking method and system based on feature recognition | |
| CN110659584A (en) | Intelligent trace marking system based on image recognition | |
| CN107590495A (en) | Answer sheet picture method for correcting error, device, readable storage medium storing program for executing and electronic equipment | |
| CN112580503A (en) | Operation correction method, device, equipment and storage medium | |
| CN107220610A (en) | A kind of subjective item fraction recognition methods applied to marking system | |
| CN112348019A (en) | Answer sheet correction method and device, electronic equipment and storage medium | |
| CN109741273A (en) | A kind of mobile phone photograph low-quality images automatically process and methods of marking | |
| CN107045635A (en) | A kind of paper image paging sub title processing method of online paper-marking system | |
| CN114267046A (en) | Method and device for correcting direction of document image | |
| CN106815814A (en) | A kind of image contamination processing method for being applied to marking system | |
| CN115482535A (en) | Test paper automatic correction method, storage medium and equipment | |
| CN108062548B (en) | Braille square self-adaptive positioning method and system | |
| CN115620332A (en) | Automatic reading and amending method and equipment based on paper operation | |
| CN114332898A (en) | Automatic correcting method and device for connection test questions and storage medium | |
| CN113903039A (en) | Color-based answer area acquisition method for answer sheet | |
| CN113378822A (en) | System for marking handwritten answer area by using special mark frame in test paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170815 |