CN104240361B - A kind of live vote system based on camera head and graphics card - Google Patents
A kind of live vote system based on camera head and graphics card Download PDFInfo
- Publication number
- CN104240361B CN104240361B CN201410476494.0A CN201410476494A CN104240361B CN 104240361 B CN104240361 B CN 104240361B CN 201410476494 A CN201410476494 A CN 201410476494A CN 104240361 B CN104240361 B CN 104240361B
- Authority
- CN
- China
- Prior art keywords
- card
- image
- camera head
- participant
- system based
- 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.)
- Active
Links
Landscapes
- Image Processing (AREA)
- Studio Devices (AREA)
Abstract
The present invention relates to a kind of live vote system based on camera head and graphics card, described system includes the portable equipment with camera head, and a set of figure card；Each described card has unique shape and unique number, and M the direction through rotating is independent differentiable, and each card represents a participant, and each direction represents an option；In voting process, the hand-held card of participant, allow oneself ballot item direction upwards；Promoter uses the photographic head in described portable unit to obtain card image, the card numbering in image processing process obtains the scene scanned and direction.In the present invention, scanning process is that real-time continuous is carried out, and the dollying head visual angle that promoter is suitable can complete the scanning of all cards in 1 to 2 seconds, immediately see voting results accurately.
Description
Technical field
The present invention relates to a kind of live vote system based on camera head and graphics card.
Background technology
Live vote system has application widely in the scenes such as education, meeting.Ballot promoter needs to collect the voting results of all participants, result carries out Macro or mass analysis, and determines next step activity carried out.
Such as, in classroom, teacher is as promoter, in order to check teaching efficiency, can go out one selection exercise question, students select correct option.If it is right that most of students answer, then can continue to explain follow-up knowledge.If accuracy is the highest, teacher can be found out fallibility option and teaching weak link by the selection situation of students, carried out degree of depth explanation.
For another example, in conference process, host, as promoter, needs to vote meeting resolution, collects the voting results of participant, determine whether resolution is passed through.
The solution of traditional ballot system mainly uses and votes by a show of hands, or everyone mode configuring ballot device is carried out.
Voting by a show of hands can be carried out whenever and wherever possible of mode, promoter must allow the participant throwing different tickets raise one's hand in batches, and artificial mode adds up the number of raising one's hand, therefore inefficient, error height.The classroom or meeting room of tens people are difficult to effectively perform.
Everyone configures the mode of ballot device, has high requirements place, needs to plan in advance the installation wiring problem of ballot device, and has the highest hardware purchase cost and construction cost.
Along with hand-hold electronic equipments particularly mobile phone, panel computer universal, occur in that the most in the industry based on mobile phone, the ballot system of panel computer.Participant runs application-specific by the mobile phone of individual or accesses specific website, participates in the ballot of promoter.But this scheme is restricted by the factor such as network environment, equipment compatibility, cannot use in the case of there is no public network or LAN cannot be set up, also can not require in provisional meeting that participant can be connected in ballot system smoothly, this scheme is also not suitable for classroom etc. to be needed to control the occasion that mobile phone uses.
Summary of the invention
The invention discloses a kind of ballot system based on figure.In this ballot system, it is only necessary to promoter uses the electronic equipment such as mobile phone, panel computer, participant only need to use the preprepared scraps of paper being printed on figure to vote.Therefore avoid the dependence to network, it is not necessary to construction deployment question-and-answer game apparatus, participant is not had the requirement in terms of equipment, be suitable for using in the scene of the needs ballots such as teaching, meeting.
The present invention provides a kind of live vote system based on camera head and graphics card, and described system includes the portable equipment with camera head, and a set of figure card；Each described card has unique shape and unique number, and M the direction through rotating is independent differentiable, and each card represents a participant, and each direction represents an option；In voting process, the hand-held card of participant, allow oneself ballot item direction upwards；Promoter uses the photographic head in described portable unit to obtain card image, the card numbering in image processing process obtains the scene scanned and direction.
Further, described processing procedure is as follows:
The first step: input picture, and carries out binarization of gray value process, obtains black and white solid-color image:
Second step: black white image is carried out rim detection, finds all of edge, finds out M summit along edge, and this M summit can constitute a M limit shape surrounding targeted graphical；
3rd step: the rectangle on known M summit, carries out affine transformation, obtains square-shaped image；The square-shaped image obtained is cut into the grid of n × n, checks the color of each grid, the characteristic information of image can be obtained, characteristic information is mated with known figure, i.e. can get numbering corresponding to photo current and direction.
Further, described portable unit is mobile phone or panel computer.
Further, described n is the natural number more than or equal to 5, and described M is the natural number more than or equal to 4.
In ballot activity, participant lifts card, represents, with direction, item of oneself voting, and promoter uses mobile phone or panel computer etc. to run scanning imaging system, obtains card image by photographic head and is analyzed, collecting and obtain voting results.Scanning process is that real-time continuous is carried out, the dollying head visual angle that promoter is suitable, can complete the scanning of all cards, immediately see voting results accurately in 1 to 2 seconds.
Accompanying drawing explanation
Be more fully described the exemplary embodiment of the present invention by referring to accompanying drawing, the above and other aspect of the present invention and advantage will become the clearest, in the accompanying drawings:
One of the card used of a kind of based on camera head and graphics card live vote system that Fig. 1 is present invention schematic diagram；
Two schematic diagrams of the card used of a kind of based on camera head and graphics card the live vote system that Fig. 2 is the present invention；
Fig. 3 is the card numbering in image processing process obtains the scene scanned and the schematic diagram in direction；
Fig. 4 is rim detection effect schematic diagram；
Fig. 5 is affine transformation effect schematic diagram.
Detailed description of the invention
Hereinafter, it is more fully described the present invention, various embodiments shown in the drawings now with reference to accompanying drawing.But, the present invention can implement in many different forms, and should not be construed as limited to embodiment set forth herein.On the contrary, it is provided that these embodiments make the disclosure will be thoroughly and completely, and fully convey the scope of the present invention to those skilled in the art.
Hereinafter, the exemplary embodiment of the present invention it is more fully described with reference to the accompanying drawings.
The present invention is made up of a scanning imaging system and a set of figure card through design.
As depicted in figs. 1 and 2, each card has unique shape and unique number to card graphical examples, and the four direction through rotating is independent differentiable.Each card represents a participant, and each direction represents an option.In voting process, the hand-held card of participant, allow oneself ballot item direction upwards.
Promoter runs scanning imaging system in mobile phone or panel computer, obtains card image by photographic head, the card numbering in image processing process obtains the scene scanned and direction, as shown in Figure 3.
Processing procedure is as follows:
The first step: input picture, and carries out binarization of gray value process, obtains black and white solid-color image:
Second step: black white image is carried out rim detection, finds all of edge.Find out upper left, upper right, lower-left, summit, four, bottom right along edge, these four summits can constitute a tetragon surrounding targeted graphical, as shown in Figure 4.
3rd step: the rectangle on known four summits, carries out affine transformation, obtains square-shaped image.The square-shaped image obtained is cut into the grid of 5x5, checks the color of each grid, the characteristic information of image can be obtained.Characteristic information is mated with known figure, i.e. can get numbering corresponding to photo current and direction, as shown in Figure 5.
The present invention is except for teaching and meeting, it may also be used in the activity that election, select-elite etc. are relevant to ballot.By increasing the grid number (such as expanding to 6x6,7x7 etc. from 5x5) of card, more participant can be accommodated and vote.More polling option can be supported by adjusting card-like (such as using pentagon, hexagon etc.).
The foregoing is only embodiments of the invention, be not limited to the present invention.The present invention can have various suitable change and change.All any modification, equivalent substitution and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (3)
1. a live vote system based on camera head and graphics card, it is characterised in that:
Described system includes the portable equipment with camera head, and a set of figure card；
Each described card has unique shape and unique number, and M the direction through rotating is independent differentiable, and each card represents a participant, and each direction represents an option；In voting process, the hand-held card of participant, allow oneself ballot item direction upwards；
Promoter uses the photographic head in described portable unit to obtain card image, the card numbering in image processing process obtains the scene scanned and direction；
Wherein, image processing process is as follows:
The first step: input picture, and carry out binarization of gray value process, obtain black and white solid-color image；
Second step: black white image is carried out rim detection, finds all of edge, finds out M summit along edge, and this M summit can constitute a M limit shape surrounding targeted graphical；
3rd step: the rectangle on known M summit, carries out affine transformation, obtains square-shaped image；The square-shaped image obtained is cut into the grid of n × n, checks the color of each grid, the characteristic information of image can be obtained, characteristic information is mated with known figure, i.e. can get numbering corresponding to photo current and direction.
A kind of live vote system based on camera head and graphics card, it is characterised in that:
Described portable unit is mobile phone or panel computer.
A kind of live vote system based on camera head and graphics card, it is characterised in that:
Described n is the natural number more than or equal to 5, and described M is the natural number more than or equal to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476494.0A CN104240361B (en) | 2014-09-18 | 2014-09-18 | A kind of live vote system based on camera head and graphics card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476494.0A CN104240361B (en) | 2014-09-18 | 2014-09-18 | A kind of live vote system based on camera head and graphics card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104240361A CN104240361A (en) | 2014-12-24 |
| CN104240361B true CN104240361B (en) | 2016-08-03 |
Family
ID=52228358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410476494.0A Active CN104240361B (en) | 2014-09-18 | 2014-09-18 | A kind of live vote system based on camera head and graphics card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104240361B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109035543A (en) * | 2018-07-28 | 2018-12-18 | 马鞍山悠生活网络文化科技有限公司 | A kind of exhibitions ballot automatic identification equipment and its application method |
| CN110473332A (en) * | 2019-08-23 | 2019-11-19 | 上海理工大学 | It is a kind of based on the facial expression of recognition of face and block chain technology vote assessment system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426315C (en) * | 2006-01-12 | 2008-10-15 | 北京飞利信电子技术有限公司 | Voting paper recognition method for electronic voting boxes |
| JP2007207116A (en) * | 2006-02-03 | 2007-08-16 | Chuo Mitsui Trust & Banking Co Ltd | Voting right counting system, voting right counting method, and voting right counting program |
| CN101447017B (en) * | 2008-11-27 | 2010-12-08 | 浙江工业大学 | Method and system for quickly identifying and counting votes on the basis of layout analysis |
| CN101436321B (en) * | 2008-12-12 | 2010-12-01 | 中科院成都信息技术有限公司 | Method for processing ballot information |
| CN103886319A (en) * | 2014-03-24 | 2014-06-25 | 北京大学深圳研究生院 | Intelligent held board recognizing method based on machine vision |
-
2014
- 2014-09-18 CN CN201410476494.0A patent/CN104240361B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104240361A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102411854B (en) | Classroom teaching mixing technology application system based on enhanced reality and method thereof | |
| CN106897749A (en) | Automatic marking method and system | |
| CN106033544B (en) | Template matching-based test paper content area extraction method | |
| US9582728B2 (en) | System for determining alignment of a user-marked document and method thereof | |
| Baker et al. | Tactile graphics with a voice: using QR codes to access text in tactile graphics | |
| US10037708B2 (en) | Method and system for analyzing exam-taking behavior and improving exam-taking skills | |
| CN101044533A (en) | Attendance tracking system | |
| CN103778816A (en) | Test paper answer extracting system | |
| CN108830267A (en) | A kind of method and system goed over examination papers based on image recognition | |
| US20140040928A1 (en) | Audience polling system | |
| US20160180727A1 (en) | Student assessment grading engine | |
| CN110879965A (en) | Automatic reading and amending method of test paper objective questions, electronic device, equipment and storage medium | |
| CN106845314B (en) | A kind of method for rapidly positioning of two dimensional code | |
| CN111368808A (en) | Method, device and system for acquiring answer data and teaching equipment | |
| CN104240361B (en) | A kind of live vote system based on camera head and graphics card | |
| CN110136508A (en) | A kind of wisdom classroom system based on wireless video terminal | |
| KR101770473B1 (en) | Display control program, display control method, and display control apparatus | |
| Zhi et al. | RFID-enabled smart attendance management system | |
| CN106503747A (en) | A kind of image recognition statistical analysis system | |
| CN111179226B (en) | Visual field diagram identification method and device and computer storage medium | |
| JP2013011705A (en) | Information terminal, information processing method and education support system | |
| CN113554046A (en) | Image processing method and system, storage medium and computing device | |
| KR20140008172A (en) | Method of providing extensible learning contents using textbook had code information | |
| CN106355121A (en) | Answering system and answering method on basis of two-dimensional code information and directional locations | |
| Litayem et al. | Automatic attendance and mobile learning system in sensor enabled heterogeneous and dynamic university environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |