CN102521569A - Method and system for identifying identity card by using smart phone and mobile phone - Google Patents
Method and system for identifying identity card by using smart phone and mobile phone Download PDFInfo
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- CN102521569A CN102521569A CN2011103899716A CN201110389971A CN102521569A CN 102521569 A CN102521569 A CN 102521569A CN 2011103899716 A CN2011103899716 A CN 2011103899716A CN 201110389971 A CN201110389971 A CN 201110389971A CN 102521569 A CN102521569 A CN 102521569A
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Abstract
The invention discloses a method and system for identifying identity card by using a smart phone and a mobile phone. The method comprises the following steps of: acquiring an identity card image through an image sensor, extracting human face information in the identity card image by using a human face detecting unit, and partitioning and extracting character information in the identity card image through a character partitioning and extracting unit; and identifying characters through a character identifying unit, and displaying an identifying result through a display unit. Due to the adoption of the method and the system, the problem that an identity card identifying system cannot be transplanted to the smart phone for application is solved; an algorithm is easy; and the method and the system can well adapt to a mobile phone platform with continuous variable scenes and large illumination variation.
Description
Technical field
The present invention relates to smart mobile phone, relate in particular to the recognition methods of a kind of smart mobile phone I.D., system and mobile phone.
Background technology
Smart mobile phone (Smartphone); Be meant ", come constantly the function of mobile phone is expanded through this class method, and can realize the general name of such one type of mobile phone that wireless network inserts " through mobile communication network as PC; have independently operating system; can be by user's program of providing of third party such as install software, recreation service provider voluntarily.
Smart mobile phone is after developing through the first year in 2010, and this year will be in wider outburst.Sai Nuo estimates that 2011, Chinese smart mobile phone sales volume will reach 4,700 ten thousand ones, increases by 70% than 2010.The prediction of iSuppli company will rise to 8,000 ten thousand ones to China's Smart Mobile Phone Market in 2014.The data that rise violently are the smart mobile phone market that gets into barbarous build phase behind.Therefore on intelligent mobile phone platform, carry out ID card information and extract significant and using value.
As a kind of man-machine interaction means of high efficiency smart, the I.D. recognition technology can be widely used in the investigation of veriying citizenship, people stayed temporarily, hotel and already register verification, criminal and pursue and capture an escaped prisoner etc. in the middle of the public business.Simultaneously, in conjunction with modern ICT, the I.D. recognition technology is also increased work efficiency for public security organ and the detection level provides technological means.In addition;, the typing of depositor's ID card information, securities broker company's business handling and library users also can use the I.D. recognition technology when registering; Combine with corresponding information database; When carrying out the user profile registration, can improve staff's input speed greatly, reduce user's stand-by period, improve bank clerk or the employee's of library work efficiency on the whole.
Existing ID Card Recognition System based on machine vision (like Chinese king's ID Card Recognition System) is because the complicated process of algorithm is higher; Need the independent identity document dedicated scan appearance of making; And the application scenario is more fixing; Illumination variation is little, can't be applicable to that scene do not stop to change the intelligent mobile phone platform that illumination variation is bigger.
Therefore, prior art awaits improving and development.
Summary of the invention
The object of the present invention is to provide the recognition methods of a kind of smart mobile phone I.D., system and mobile phone.
Technical scheme of the present invention is following:
A kind of smart mobile phone ID Card Recognition System wherein, comprising:
Be used to obtain the imageing sensor of I.D. image;
Be used for extracting people's face detecting unit of I.D. image people face information;
Be used for cutting apart and extracting the Character segmentation extraction unit of I.D. image character information;
The character recognition unit that is used for identification character;
Be used to show the display unit of recognition result.
Described smart mobile phone ID Card Recognition System wherein, also comprises: be used for the I.D. image determine one's identity the card position the I.D. extraction unit.
Described smart mobile phone ID Card Recognition System wherein, also comprises: be used to rotate the I.D. rotation detecting circuit that the I.D. image carries out angle location.
Described smart mobile phone ID Card Recognition System, wherein, described people's face detecting unit is the adaboost sorter.
The recognition methods of a kind of smart mobile phone I.D. may further comprise the steps:
A, obtain the I.D. image;
People's face information in B, the extraction I.D. image;
C, cut apart and extract character information in the I.D. image;
D, according to the character information identification character that extracts;
E, demonstration recognition result.
The recognition methods of described smart mobile phone I.D., step B also comprises:
B1, in the I.D. image, determine one's identity the card position;
B2, carry out angle location according to I.D. position rotation I.D. image.
The recognition methods of described smart mobile phone I.D. wherein, is extracted people's face information in the I.D. image through the adaboost sorter among the step B.
A kind of smart mobile phone wherein, comprises described smart mobile phone ID Card Recognition System.
The present invention at first obtains the I.D. image through imageing sensor, and end user's face detecting unit extracts people's face information in the I.D. image then, and then cuts apart and extract character information in the I.D. image through the Character segmentation extraction unit; Then through the character recognition unit identification character; Show recognition result through display unit at last.
The present invention utilizes the open characteristic of intelligent mobile phone platform; Through the image of gathering is carried out a series of processing; Accomplish the rotation and the extraction of I.D. image; Reached the purpose of effective identification of extraction and the ID card information of I.D. head portrait, accomplished design and realization based on the ID card information extraction system of smart mobile phone.
The invention solves ID Card Recognition System and can't be transplanted to the problem that smart mobile phone is used, and algorithm is simple, can be applicable to well that scene do not stop to change the cell phone platform that illumination variation is bigger.
Description of drawings
Fig. 1 is the synoptic diagram of the recognition methods of a kind of smart mobile phone I.D. of the present invention, system and mobile phone.
Fig. 2 is the algorithm of left wave filter in the I.D. extraction unit among the present invention.
Fig. 3 is the algorithm of I.D. extraction unit right-of-center in political views wave filter among the present invention.
Fig. 4 is the algorithm of end wave filter in the I.D. extraction unit among the present invention.
Embodiment
The invention provides the recognition methods of a kind of smart mobile phone I.D., system and mobile phone, clearer, clear and definite for making the object of the invention, technical scheme and effect, below with reference to accompanying drawing and give an actual example to further explain of the present invention.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The invention discloses a kind of smart mobile phone ID Card Recognition System; As shown in Figure 1; Comprise the imageing sensor S1 that is used to obtain the I.D. image, described imageing sensor S1 can realize that certain described imageing sensor S1 can also carry out some pre-service to the I.D. image that obtains by the camera in the smart mobile phone; As carry out smoothing processing and noise reduction process etc., thereby guarantee the sharpness of I.D. image; The present invention also comprises people's face detecting unit S4; After imageing sensor S1 obtains the I.D. image; Extract people's face information in the I.D. image by described people's face detecting unit S4, described people's face detecting unit S4 utilizes human face detection tech, as (full name is: Open Source Computer Vision Library to be implanted in OpenCV in the intelligent mobile phone system; Chinese: cross-platform computer vision storehouse) utilize the AdaBoost sorter, realize the extraction of people's face.The present invention also comprises Character segmentation extraction unit S5; After people's face detecting unit S4 extracts people's face information; Cut apart by described Character segmentation extraction unit S5 again and extract character information in the I.D. image, for example utilize horizontal projection and vertical projection technology to accomplish cutting apart of character and extract, cut apart and extract in the I.D. image behind the character information; By character recognition unit S6 identification character; The OCR of said character recognition unit S6 Qing Hua Ziguang capable of using (Optical Character Recognition, optical character identification) accomplishes the identification of character, last recognition result at display unit S7 character display recognition unit S6; Information such as the concrete certainly character that detects and people's face also can show, and described display unit specifically can be the display screen of smart mobile phone.So just can and extract on the smart mobile phone, directly check through display screen with the identification on the I.D..
Further preferred scheme, as shown in Figure 1, the present invention also comprises I.D. extraction unit S2, described I.D. extraction unit S2 is used in the I.D. image card position that determines one's identity.Because the application scenarios of smart mobile phone does not stop to change, illumination variation is bigger, and the I.D. image that obtains can not be square-folded; Background also can not be consistent; So the I.D. change in location is bigger in the I.D. image, in order more accurately to extract people's face information and character information, after imageing sensor S1 obtains the I.D. image; By the I.D. extraction unit S2 position of card in the I.D. image that determine one's identity; From background, extract the I.D. image, delete unnecessary background, further the I.D. image is optimized processing.Described I.D. extraction unit S2 can determine one's identity through left and right, end wave filter respectively and demonstrate,prove the position of image, and wherein, the algorithm of left wave filter is as shown in Figure 2, and the algorithm of right wave filter is as shown in Figure 3, and the algorithm of end wave filter is as shown in Figure 4.Thereby detect three limits of I.D. image, be respectively the left side, the right and base.
Preferred version further; As shown in Figure 1; The present invention can also comprise I.D. rotation detecting circuit S3; Said I.D. rotation detecting circuit S3 is used for the I.D. image of card behind the position that determine one's identity to I.D. extraction unit S2, is rotated processing, thereby the I.D. image is carried out angle location.More particularly; Promptly utilize three limits that detect the I.D. image to calculate its anglec of rotation; Then three angles are averaged, this mean value is the anglec of rotation, after the accuracy of the assurance anglec of rotation; Just the I.D. image is rotated, makes the be more convenient for extraction of next step information of the I.D. image of ajusting.
Particularly, the extraction unit of Character segmentation described in the present invention S5, the gradation of image value carried out normalization after, carry out binaryzation again, the cutting apart and extract of the last statistics of the counting completion character that just utilizes row projection and vertical projection;
The invention also discloses the recognition methods of a kind of smart mobile phone I.D., concrete explanation with reference to above-mentioned a kind of smart mobile phone I.D. recognition device.May further comprise the steps:
At first through obtaining the I.D. image, can realize that end user's face detecting unit extracts people's face information in the I.D. image then, and then cut apart and extract character information in the I.D. image through the Character segmentation extraction unit through above-mentioned imageing sensor; Then through the character recognition unit identification character; Show recognition result through display unit at last.
The OCR of said character recognition unit S6 Qing Hua Ziguang capable of using (Optical Character Recognition, optical character identification) accomplishes the identification of character,
Before extracting people's face information, optimal way also can may further comprise the steps:
In the I.D. image through the I.D. extraction unit determine one's identity the card position; The position confirms that the back just rotates the I.D. image through the I.D. rotation detecting circuit and carries out angle location.And then carry out the extraction of people's face information.
Extract people's face information in the I.D. image through the adaboost sorter in the inventive method.
The present invention also discloses a kind of smart mobile phone, and said smart mobile phone comprises above-mentioned a kind of smart mobile phone ID Card Recognition System.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (8)
1. a smart mobile phone ID Card Recognition System is characterized in that, comprising:
Be used to obtain the imageing sensor of I.D. image;
Be used for extracting people's face detecting unit of I.D. image people face information;
Be used for cutting apart and extracting the Character segmentation extraction unit of I.D. image character information;
The character recognition unit that is used for identification character;
Be used to show the display unit of recognition result.
2. smart mobile phone ID Card Recognition System as claimed in claim 1 is characterized in that, also comprises: be used for the I.D. image determine one's identity the card position the I.D. extraction unit.
3. smart mobile phone ID Card Recognition System as claimed in claim 2 is characterized in that, also comprises: be used to rotate the I.D. rotation detecting circuit that the I.D. image carries out angle location.
4. like the described smart mobile phone ID Card Recognition System of claim 1～3, it is characterized in that described people's face detecting unit is the adaboost sorter.
5. smart mobile phone I.D. recognition methods may further comprise the steps:
A, obtain the I.D. image;
People's face information in B, the extraction I.D. image;
C, cut apart and extract character information in the I.D. image;
D, according to the character information identification character that extracts;
E, demonstration recognition result.
6. smart mobile phone I.D. as claimed in claim 5 recognition methods, step B also comprises:
B1, in the I.D. image, determine one's identity the card position;
B2, carry out angle location according to I.D. position rotation I.D. image.
7. like the recognition methods of the described smart mobile phone I.D. of claim 5～6, it is characterized in that, extract people's face information in the I.D. image through the adaboost sorter among the step B.
8. a smart mobile phone is characterized in that, comprises the described smart mobile phone ID Card Recognition System of claim 1～3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103899716A CN102521569A (en) | 2011-11-30 | 2011-11-30 | Method and system for identifying identity card by using smart phone and mobile phone |
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| CN2011103899716A CN102521569A (en) | 2011-11-30 | 2011-11-30 | Method and system for identifying identity card by using smart phone and mobile phone |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915522A (en) * | 2012-09-12 | 2013-02-06 | 康佳集团股份有限公司 | Smart phone name card extraction system and realization method thereof |
| CN103701987A (en) * | 2013-12-10 | 2014-04-02 | 杭州电子科技大学 | Method for fast sending express delivery notice by intelligent mobile phone |
| CN104077767A (en) * | 2013-03-29 | 2014-10-01 | 北京千橡网景科技发展有限公司 | Method and device for detecting edge of business card |
| CN104408450A (en) * | 2014-11-21 | 2015-03-11 | 深圳天源迪科信息技术股份有限公司 | Identity card identifying method, device and system |
| CN104699864A (en) * | 2015-04-08 | 2015-06-10 | 贵州省烟草公司毕节市公司 | Tobacco production data collection terminal |
| CN107122775A (en) * | 2017-03-29 | 2017-09-01 | 南京航空航天大学 | A kind of Android mobile phone identity card character identifying method of feature based matching |
| CN107480736A (en) * | 2017-08-02 | 2017-12-15 | 中铁程科技有限责任公司 | Information processing method and device |
| CN108509885A (en) * | 2018-03-26 | 2018-09-07 | 东南大学 | A kind of efficient identity card picture screening technique |
| CN108734235A (en) * | 2018-04-04 | 2018-11-02 | 四川骏逸富顿科技有限公司 | A kind of personal identification method and system for electronic prescription |
| CN111428656A (en) * | 2020-03-27 | 2020-07-17 | 信雅达系统工程股份有限公司 | Mobile terminal identity card identification method based on deep learning and mobile device |
-
2011
- 2011-11-30 CN CN2011103899716A patent/CN102521569A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915522A (en) * | 2012-09-12 | 2013-02-06 | 康佳集团股份有限公司 | Smart phone name card extraction system and realization method thereof |
| CN104077767A (en) * | 2013-03-29 | 2014-10-01 | 北京千橡网景科技发展有限公司 | Method and device for detecting edge of business card |
| CN103701987A (en) * | 2013-12-10 | 2014-04-02 | 杭州电子科技大学 | Method for fast sending express delivery notice by intelligent mobile phone |
| CN104408450A (en) * | 2014-11-21 | 2015-03-11 | 深圳天源迪科信息技术股份有限公司 | Identity card identifying method, device and system |
| CN104699864A (en) * | 2015-04-08 | 2015-06-10 | 贵州省烟草公司毕节市公司 | Tobacco production data collection terminal |
| CN107122775A (en) * | 2017-03-29 | 2017-09-01 | 南京航空航天大学 | A kind of Android mobile phone identity card character identifying method of feature based matching |
| CN107480736A (en) * | 2017-08-02 | 2017-12-15 | 中铁程科技有限责任公司 | Information processing method and device |
| CN108509885A (en) * | 2018-03-26 | 2018-09-07 | 东南大学 | A kind of efficient identity card picture screening technique |
| CN108734235A (en) * | 2018-04-04 | 2018-11-02 | 四川骏逸富顿科技有限公司 | A kind of personal identification method and system for electronic prescription |
| CN111428656A (en) * | 2020-03-27 | 2020-07-17 | 信雅达系统工程股份有限公司 | Mobile terminal identity card identification method based on deep learning and mobile device |
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Application publication date: 20120627 |