CN103106399A - Intelligent dorsal hand vein image collecting device - Google Patents
Intelligent dorsal hand vein image collecting device Download PDFInfo
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- CN103106399A CN103106399A CN2013100313726A CN201310031372A CN103106399A CN 103106399 A CN103106399 A CN 103106399A CN 2013100313726 A CN2013100313726 A CN 2013100313726A CN 201310031372 A CN201310031372 A CN 201310031372A CN 103106399 A CN103106399 A CN 103106399A
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Abstract
An intelligent dorsal hand vein image collecting device mainly comprises an image collecting module, an information analysis module and an information control module. The image collecting module mainly comprises an infrared source, an infrared imaging device and the like. A dorsal hand vein image is obtained by using the infrared imaging device under the irradiating of the infrared source, the quality information of the moving position of a hand and the image is judged by carrying out relative analysis to the obtained dorsal hand vein image through the information analysis module, the analyzed relative information is fed back to the information analysis module, relative instructions are sent to complete the status indication of a device, self-adaption real-time control is carried out to the infrared source, the infrared imaging device and other components, the reasonable placement of the hand is guided at the same time, and therefore the vein image with an accurate position, appropriate light brightness and no light leakage and capable of meeting practical requirements is obtained.
Description
Technical field
The present invention relates to a kind of hand back vein harvester, belong to the biometrics identification technology field.
Background technology
The identification of human body hand back vein as a kind of emerging biometrics identification technology, is a kind of safety and identification mode easily, is a kind of emerging heat subject in area of pattern recognition.Because blood vessel is in inside of human body, gatherer process is pollution-free, vein pattern is difficult to be forged, vein pattern has the advantages such as noncontact, uniqueness are strong, internal feature, vivo identification, safe class height, and this technology has obtained using more and more widely in the identification field in recent years.No matter be as main personal identification method, or the aid identification method of being combined with other recognition methodss, all have broad application prospects.
The hand back vein image is taken gained by infrared imaging device.Due to external environment such as different time, place, intensities of illumination, and the impact such as different back of people's hand sizes, thickness, acquisition angles, add that vein blood vessel is positioned at the hypodermis of human body, even use advanced near infrared collecting device, it is inhomogeneous that image still can intensity profile occur, or contain the problem of multiple different noises, make the image that gathers have very large difference, these differences have increased follow-up vein image feature extraction and characteristic matching difficulty, thereby affect recognition result.So in order to reduce the subsequent treatment difficulty as far as possible, improve recognition efficiency, need design to build and obtain high-quality hand back vein image collecting device.
Summary of the invention
The present invention seeks to solve individual the back of the hand thickness difference and vein blood vessel thickness difference, tiny vein blood vessel is difficult to Obtaining Accurate, and when the different the back of the hand of the Infrared irradiation thickness of fixing light intensity, can present spotty vein image on imageing sensor, generation exposed by force or the problem such as excessively dark, and a kind of intelligent hand back vein image collecting device is provided.
This device utilizes infrared light supply direct projection the back of the hand section, gather the hand back vein image by infrared imaging device, the vein image that collects is through relevant graphical analysis, information is fed back to control system, the state adjustment of equipment is carried out in the instruction that system sends according to the information control module, then automatically regulates the correlation parameter of infrared light supply and infrared imaging device according to individual difference, obtains the position accurate, brightness is suitable, satisfies the vein image of actual requirement.
Technical scheme of the present invention is as follows
Intelligent hand back vein image collecting device of the present invention comprises image capture module, information analysis module and information control module; This device is sent to the information analysis module with the associated picture information that image capture module collects, through relevant graphical analysis, the movement position of judgement hand and the quality information of image, the relevant information of analyzing is fed back to the information control module, then send the state indication of dependent instruction finishing equipment, and infrared light supply and infrared imaging device are carried out self-adaptation control in real time, instruct simultaneously the reasonable placement of hand, thereby it is accurate to obtain the position, brightness is suitable, without light leak, can satisfy the vein image of actual requirement.
Described image capture module comprises shell, the center section of shell is provided with a wicket that is used for stretching into staff, below in shell is equipped with the contact-making switch button, the infrared light supply that top in shell is equipped with infrared imaging device and obtains the hand back vein image, be provided with infrared fileter before infrared imaging device, the top of shell is equipped with pilot lamp.
Described infrared imaging device is near infrared light to be had the black and white cmos imaging device of better response characteristic.
Described infrared light supply is LED array.Described LED array light source is the annular light source around the infrared imaging device digital camera head.
Described information analysis module mainly comprises image processing software and some communication interfaces, use the associated picture analytical approach, the indication of finishing equipment state, the checking process indication, check result indication and relevant information indication, realize the communication work of intelligent acquisition device and host computer system, comprise the transmission of vein image, the transmission of the back of the hand locating information and the indication of equipment state.
Described information control module mainly comprises image device controller and light source controller, the image device controller is connected with main frame with infrared imaging device respectively, light source controller is connected with contact-making switch button, power supply, infrared light supply and main frame respectively, and the system that realizes controls in real time to the self-adaptation of infrared light supply and infreared imaging device.
Staff is put into acquisition zone, through the irradiation of infrared light supply, utilizes infrared imaging device to take vein image.Control system is regulated infrared light supply and infrared imaging device according to the individual difference of staff in real time by light source controller and imaging controller, when taking the Different Individual hand back vein with assurance, the intensity of light source maintains in a metastable scope, the correlation parameter of infrared imaging device also keeps optimum condition, thereby it is accurate to obtain the position, brightness is suitable, hand back vein image that can practical requirement.
Advantage of the present invention and beneficial effect:
(1) the present invention gathers the simple and convenient man-machine friendly characteristics that have.
(2) the present invention's vein blood vessel image of Obtaining Accurate Different Individual comparatively.
(3) can to obtain texture clear in the present invention, and stay-in-grade vein image is for follow-up vein identification provides the basis.
Description of drawings
Fig. 1 is intelligent hand back vein image collecting device contour structures schematic diagram.
Fig. 2 is the acquisition module of enclosure and the associated component of control system.
Fig. 3 is the correlation analysis figure of information analysis and control module in intelligent hand back vein image collecting device.
1-shell wherein, the 2-wicket, the 3-trigger switch, the 4-pilot lamp, the 5-main frame, the 6-CMOS image device,
The 7-infrared light supply, 8-optical lens, 9-infrared fileter.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As attached illustrated in figures 1 and 2, intelligent hand back vein image collecting device comprises image capture module, information analysis module and information control module.
Image capture module comprises shell 1, the center section of shell is provided with a wicket 2 that is used for stretching into staff, below in shell is equipped with contact-making switch button 3, the infrared light supply (see figure 2) that top in shell is equipped with the near infrared light imaging device and obtains the hand back vein image, be provided with infrared fileter 9 before imaging device, the top of shell is equipped with pilot lamp 4.
Described infrared imaging device is near infrared light to be had the black and white cmos imaging device of better response characteristic.Described infrared light supply is LED array.Described LED array light source is the annular light source around infrared imaging device.
Described information analysis module mainly comprises image processing software and some communication interfaces, use the associated picture analytical approach, the indication of finishing equipment state, the checking process indication, check result indication and relevant information indication, realize the communication work of intelligent acquisition device and host computer system, comprise the transmission of vein image, the transmission of the back of the hand locating information and the indication of equipment state.
Described information control module mainly comprises image device controller and light source controller, the image device controller is connected with main frame with near infrared light imaging device 6 respectively and is connected, light source controller is connected with main frame with trigger switch button 3, power supply, infrared light supply 7 respectively, and the system that realizes controls in real time to the self-adaptation of infrared light supply and infreared imaging device.
The course of work:
When carrying out the hand back vein image acquisition, first equipment is remained on the leisure state, when being stretched in the acquisition window of shell by collection people's hand, palm touches trigger switch, this moment, circuit was connected, equipment is transformed into duty from the leisure state, and it is work brightness that light source is set, and carries out image taking this moment, the image of taking is sent to main frame and carries out correlation analysis, judge whether palm arrives assigned address, whether image light leak, judges that at last whether brightness of image is in rational scope.Through correlation analysis, information is fed back to control system, control system is connected infrared light supply, regulate the intensity of infrared light supply, make and be fit to gather the infrared light of individual infrared light supply through the collection position of optical lens and infrared fileter irradiation the back of the hand, control system is controlled simultaneously the infrared camera of vein image image device CMOS the back of the hand is taken, and takes to obtain the hand back vein picture.Simultaneously control system is by controlling the back of the hand position indicator in this, and pilot lamp is arranged in leg-of-mutton shape, judges according to the light on and off of lamp whether palm puts in place, is gathered staff with indication and is put into rational position.Control light source by control system, image device etc. are adjusted to suitable duty with collecting device, instruct staff to be put into rational position, thereby obtain the relatively high image of quality.
Claims (7)
1. an intelligent hand back vein image collecting device, is characterized in that this device comprises image capture module, information analysis module and information control module, image capture module mainly comprises infrared light supply and infrared imaging device, this device is sent to the information analysis module with the associated picture information that image capture module collects, through relevant graphical analysis, the movement position of judgement hand and the quality information of image, the relevant information of analyzing is fed back to the information control module, then send the state indication of dependent instruction finishing equipment, and infrared light supply and infrared imaging device are carried out self-adaptation control in real time, instruct simultaneously the reasonable placement of hand, thereby it is accurate to obtain the position, brightness is suitable, without light leak, can satisfy the vein image of actual requirement.
2. intelligent hand back vein image collecting device according to claim 1, it is characterized in that described image capture module comprises shell, the center section of shell is provided with a wicket that is used for stretching into staff, below in shell is equipped with the contact-making switch button, the infrared light supply that top in shell is equipped with infrared imaging device and obtains the hand back vein image, be provided with infrared fileter before infrared imaging device, the top of shell is equipped with pilot lamp.
3. intelligent hand back vein image collecting device according to claim 2, is characterized in that described infrared imaging device is near infrared light to be had the black and white cmos imaging device of better response characteristic.
4. intelligent hand back vein image collecting device according to claim 2, is characterized in that described infrared light supply is LED array.
5. intelligent hand back vein image collecting device according to claim 4, is characterized in that described LED array light source is the annular light source around the infrared imaging device digital camera head.
6. intelligent hand back vein image collecting device according to claim 1, it is characterized in that described information analysis module mainly comprises image processing software and some communication interfaces, use the associated picture analytical approach, the indication of finishing equipment state, the checking process indication, check result indication and relevant information are indicated, and realize the communication work of intelligent acquisition device and host computer system, comprise the transmission of vein image, the transmission of the back of the hand locating information and the indication of equipment state.
7. intelligent hand back vein image collecting device according to claim 2, it is characterized in that described information control module mainly comprises image device controller and light source controller, the image device controller is connected with main frame with infrared imaging device respectively, light source controller is connected with contact-making switch button, power supply, infrared light supply and main frame respectively, and the system that realizes controls in real time to the self-adaptation of infrared light supply and infrared imaging device.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104257378A (en) * | 2014-09-01 | 2015-01-07 | 深圳先进技术研究院 | Volume blood flow pulse imaging system |
| CN104766073A (en) * | 2015-04-28 | 2015-07-08 | 天津理工大学 | Self-adaptive hand back vein image collecting system |
| CN110188675A (en) * | 2019-05-29 | 2019-08-30 | Oppo广东移动通信有限公司 | Vein collection method and Related product |
| CN110179439A (en) * | 2019-05-13 | 2019-08-30 | 江苏大学 | A kind of portable hand dorsal vein blood vessel aided positioning system and method |
| CN111832482A (en) * | 2020-07-14 | 2020-10-27 | 华南理工大学 | Open type three-dimensional finger vein recognition equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104257378A (en) * | 2014-09-01 | 2015-01-07 | 深圳先进技术研究院 | Volume blood flow pulse imaging system |
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| CN110179439A (en) * | 2019-05-13 | 2019-08-30 | 江苏大学 | A kind of portable hand dorsal vein blood vessel aided positioning system and method |
| CN110188675A (en) * | 2019-05-29 | 2019-08-30 | Oppo广东移动通信有限公司 | Vein collection method and Related product |
| CN110188675B (en) * | 2019-05-29 | 2021-04-13 | Oppo广东移动通信有限公司 | Vein collection method and related products |
| CN111832482A (en) * | 2020-07-14 | 2020-10-27 | 华南理工大学 | Open type three-dimensional finger vein recognition equipment |
| CN111832482B (en) * | 2020-07-14 | 2024-04-16 | 华南理工大学 | Open three-dimensional finger vein recognition equipment |
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Application publication date: 20130515 |