CN104240361A - Field voting system based on camera device and graphic cards - Google Patents
Field voting system based on camera device and graphic cards Download PDFInfo
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- CN104240361A CN104240361A CN201410476494.0A CN201410476494A CN104240361A CN 104240361 A CN104240361 A CN 104240361A CN 201410476494 A CN201410476494 A CN 201410476494A CN 104240361 A CN104240361 A CN 104240361A
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Abstract
The invention relates to a field voting system based on a camera device and graphic cards. The system comprises portable equipment provided with the camera device and a set of graphic cards, wherein each card is provided with a unique shape and a unique serial number, rotary M directions are independent and differentiable, each card represents one participant, and each direction represents one option; in the voting process, each participant holds the card and keeps the direction of the voting option upward; and a sponsor acquires the image of the card by the camera device in the portable equipment and obtains the scanned card serial number and the direction of the card in the scene in the image processing process. According to the voting system, the scanning process is continuously performed in real time, the sponsor moves the visual angle of the camera device appropriately, scanning of all cards can be completed in 1-2 seconds, and the accurate voting result can be seen immediately.
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 the voting results collecting all participants, carries out Macro or mass analysis, and determine next step activity carried out to result.
Such as, in classroom, teacher, as promoter, in order to check teaching efficiency, can go out one selection exercise question, selecting correct option by students.If it is right that most of student answers, then can continue to explain follow-up knowledge.If accuracy is not high, teacher by the selection situation of students, can find out fallibility option and teaching weak link, carries out degree of depth explanation.
For another example, in conference process, host, as promoter, needs to vote to meeting resolution, collects the voting results of participant, determine whether resolution is passed through.
The solution of traditional ballot system mainly adopts to be voted by a show of hands, or everyone configure ballot device mode carry out.
Vote by a show of hands can carrying out of mode whenever and wherever possible, 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, and therefore efficiency is poor, error is high.Be difficult to effectively perform in the classroom or meeting room of tens people.
Everyone configures the mode of ballot device, has high requirements to place, needs the installation wiring problem planning ballot device in advance, and has very high hardware purchase cost and construction cost.
Along with hand-hold electronic equipments particularly mobile phone, panel computer universal, there is in the industry the ballot system based on mobile phone, panel computer in recent years.Participant runs application-specific or access specific website by the mobile phone of individual, participates in the ballot of promoter.But this scheme is subject to the restriction of the factor such as network environment, equipment compatibility, cannot use when 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 the occasion that classroom etc. needs to control mobile phone use.
Summary of the invention
The invention discloses a kind of ballot system of graphic based.In this ballot system, only need promoter to use the electronic equipment such as mobile phone, panel computer, participant only need use the preprepared scraps of paper being printed on figure to vote.Therefore avoid the dependence to network, do not need construction deployment question-and-answer game apparatus, participant is not had to the requirement of equipment aspect, being adapted at teaching, meeting etc. needs to use in the scene of ballot.
The invention provides a kind of live vote system based on camera head and graphics card, described system comprises the portable equipment with camera head, and a set of figure card; Each described card has unique shape and unique number, and be independent differentiable through M direction of over-rotation, 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 camera in described portable unit to obtain card image, obtains the card numbering in the scene scanned and direction through image processing process.
Further, described processing procedure 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: carry out rim detection to black white image, finds all edges, finds out M summit along edge, and this M summit can form the M limit shape that surrounds targeted graphical;
3rd step: the rectangle on a known M summit, carries out affined 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, numbering corresponding to photo current and direction can be obtained.
Further, described portable unit is mobile phone or panel computer.
Further, described n be more than or equal to 5 natural number, described M be more than or equal to 4 natural number.
In ballot activity, participant lifts card, and represent oneself ballot item with direction, promoter uses mobile phone or panel computer etc. to run scanning sequence, obtains card image and analyzes, gather and obtain voting results by camera.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, see voting results accurately at once in 1 to 2 seconds.
Accompanying drawing explanation
Describe exemplary embodiment of the present invention in more detail by referring to accompanying drawing, above and other aspect of the present invention and advantage will become and more be readily clear of, in the accompanying drawings:
One of the card used that Fig. 1 is a kind of live vote system based on camera head and graphics card of the present invention schematic diagram;
Fig. 2 is two schematic diagram of the card used of a kind of live vote system based on camera head and graphics card of the present invention;
Fig. 3 obtains card numbering in the scene scanned and the schematic diagram in direction through image processing process;
Fig. 4 is rim detection effect schematic diagram;
Fig. 5 is affined transformation effect schematic diagram.
Embodiment
Hereinafter, more fully the present invention is described now with reference to accompanying drawing, various embodiment shown in the drawings.But the present invention can implement in many different forms, and should not be interpreted as being confined to embodiment set forth herein.On the contrary, provide these embodiments to make the disclosure will be thoroughly with completely, and scope of the present invention is conveyed to those skilled in the art fully.
Hereinafter, with reference to the accompanying drawings exemplary embodiment of the present invention is described in more detail.
The present invention is made up of a scanning sequence 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 over-rotation 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 sequence in mobile phone or panel computer, obtains card image by camera, obtains the card numbering in the scene scanned and direction, as shown in Figure 3 through image processing process.
Processing procedure 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: carry out rim detection to black white image, finds all edges.Find out upper left, upper right, lower-left, summit, four, bottom right along edge, these four summits can form the quadrilateral that surrounds targeted graphical, as shown in Figure 4.
3rd step: the rectangle on known four summits, carry out affined transformation, obtain 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, numbering corresponding to photo current and direction can be obtained, as shown in Figure 5.
The present invention, except for teaching and meeting, also can be used in the activity relevant to ballot such as election, select-elite.By increasing the grid number (such as expanding to 6x6,7x7 etc. from 5x5) of card, more participant can be held 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 amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1., based on a live vote system for camera head and graphics card, it is characterized in that:
Described system comprises the portable equipment with camera head, and a set of figure card;
Each described card has unique shape and unique number, and be independent differentiable through M direction of over-rotation, 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 camera in described portable unit to obtain card image, obtains the card numbering in the scene scanned and direction through image processing process.
2. a kind of live vote system based on camera head and graphics card as claimed in claim 1, is characterized in that:
Described processing procedure 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: carry out rim detection to black white image, finds all edges, finds out M summit along edge, and this M summit can form the M limit shape that surrounds targeted graphical;
3rd step: the rectangle on a known M summit, carries out affined 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, numbering corresponding to photo current and direction can be obtained.
3. a kind of live vote system based on camera head and graphics card as claimed in claim 1 or 2, is characterized in that:
Described portable unit is mobile phone or panel computer.
4. a kind of live vote system based on camera head and graphics card as claimed in claim 1 or 2, is characterized in that:
Described n be more than or equal to 5 natural number, described M be more than or equal to 4 natural number.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410476494.0A CN104240361B (en) | 2014-09-18 | 2014-09-18 | A kind of live vote system based on camera head and graphics card |
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| CN104240361A true CN104240361A (en) | 2014-12-24 |
| CN104240361B CN104240361B (en) | 2016-08-03 |
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| CN201410476494.0A Active CN104240361B (en) | 2014-09-18 | 2014-09-18 | A kind of live vote system based on camera head and graphics card |
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Cited By (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 |
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| CN1804905A (en) * | 2006-01-12 | 2006-07-19 | 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 |
| CN101436321A (en) * | 2008-12-12 | 2009-05-20 | 中科院成都信息技术有限公司 | Method for processing ballot information |
| CN101447017A (en) * | 2008-11-27 | 2009-06-03 | 浙江工业大学 | Method and system for quickly identifying and counting votes on the basis of layout analysis |
| 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 |
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2014
- 2014-09-18 CN CN201410476494.0A patent/CN104240361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804905A (en) * | 2006-01-12 | 2006-07-19 | 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 |
| CN101447017A (en) * | 2008-11-27 | 2009-06-03 | 浙江工业大学 | Method and system for quickly identifying and counting votes on the basis of layout analysis |
| CN101436321A (en) * | 2008-12-12 | 2009-05-20 | 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 |
Cited By (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 |
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| Publication number | Publication date |
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| CN104240361B (en) | 2016-08-03 |
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