CN104217195B - Hand vein three-dimensional imaging and identifying system - Google Patents
Hand vein three-dimensional imaging and identifying system Download PDFInfo
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- CN104217195B CN104217195B CN201410387933.0A CN201410387933A CN104217195B CN 104217195 B CN104217195 B CN 104217195B CN 201410387933 A CN201410387933 A CN 201410387933A CN 104217195 B CN104217195 B CN 104217195B
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- 210000003462 vein Anatomy 0.000 title claims abstract description 123
- 238000003384 imaging method Methods 0.000 title claims abstract description 17
- 210000003811 finger Anatomy 0.000 claims description 38
- 210000003813 thumb Anatomy 0.000 claims description 21
- 210000004932 little finger Anatomy 0.000 claims description 17
- 230000035945 sensitivity Effects 0.000 claims description 6
- 238000001228 spectrum Methods 0.000 claims description 6
- 244000060701 Kaempferia pandurata Species 0.000 claims description 3
- 235000016390 Uvaria chamae Nutrition 0.000 claims description 3
- 238000013461 design Methods 0.000 description 14
- 210000005224 forefinger Anatomy 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 210000001367 artery Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
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- 238000013441 quality evaluation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
A kind of hand vein three-dimensional imaging and identifying system, belong to collection and the identifying system of biological characteristic.It includes：Computer, upper computer software and sampler；The output end of sampler and the input of computer are connected, and upper computer software is provided with computer；Described sampler includes：Supporting box, support, laterally secure support, support platform, palm fixed support, near-infrared light source and sampler；Bottom in supporting box is connected with support platform, support is connected with support platform, one is respectively connected to both sides laterally secure support on the top of support, a sampler is respectively connected in the end for lateralling secure support, palm fixed support is connected with support, a sampler is respectively connected in the support bracket fastened top and bottom of palm.Advantage：It is simple and convenient, five kinds of hand vein feature hands of palm only can be gathered by an equipment；Ensure the accuracy and high efficiency of later stage identification, apparatus structure is simple.
Description
Technical field
The present invention relates to a kind of collection of biological characteristic and identifying system, a kind of hand vein three-dimensional imaging is with identification
System.
Background technology
Biological identification technology, it is exactly contour by computer and optics, acoustics, biology sensor and biostatistics principle
Technological meanses are intimately associated, and the technology of the identification of personal identification is carried out using the intrinsic physiological property of human body and behavioural characteristic.
With the high speed development of information technology and network technology, information security shows unprecedented importance, and bio-identification has
The characteristics of hardly possible is forged, be not easy to be lost, easy to use, has vast potential for future development.
Veinprint with fingerprint be equally everyone it is exclusive, but the probability that hand vein repeats is less than fingerprint, therefore
High-precision authentication can be carried out by analyzing the vein image feature of hand.Vein identification technology is to develop in recent years
A kind of new identity identifying method to get up, it not only has this unique advantage of In vivo detection, anti-pseudo- and anti-interference
Property aspect also there is obvious advantage compared to the biological characteristic such as fingerprint, palmmprint, face.But some popular biologies of existing market
The method that hand vein recognition equipment in characteristic identificating equipment uses mostly is single hand vein recognition, i.e. the back of the hand only with hand
The vein such as vein or palm vein or finger vena (forefinger, middle finger, the third finger), more advanced is exactly that hand is single
Vein is combined with hand or other biological characteristics, and these equipment are still unable to reach 100% on discrimination.It is and not any
One invention is to merge a variety of veins of hand to realize authentication.
The present invention is from hand vein as its biological characteristic, including palm vein, hand back vein, thumb starting point portion
Divide five kinds of vein, little finger starting point section of vein, finger vena (forefinger, middle finger, the third finger) hand vein features.By right
The collection of five kinds of vein patterns, the image of the hand vein formed is subjected to three-dimensional with image mosaic technology and feature is melted
Close, effectively improve accuracy of identification and to reduce identification time-consuming.
The content of the invention
The invention aims to provide one kind to be based on hand vein three-dimensional imaging and identifying system, solves prior art
The problem of single position hand vein recognition misclassification rate of hand is high, time-consuming.
Realize that the technical scheme of the object of the invention is as follows：Hand vein three-dimensional imaging and identifying system, including：Computer,
Upper computer software and sampler；The output end of sampler and the input of computer connect, and are provided with computer
Position machine software；
Described sampler includes：Supporting box, support, laterally secure support, support platform, palm fixed support,
Near-infrared light source and sampler；Bottom in supporting box is connected with support platform, and support is connected with support platform,
The top of support respectively connects one to both sides and laterallys secure support, and a sampler is respectively connected in the end for lateralling secure support,
Palm fixed support is connected with support, a sampler is respectively connected in the support bracket fastened top and bottom of palm.
Described sampler is respectively left sampler, right sampler, upper sampler and lower sampler, wherein left sampler,
Right sampler and upper sampler all same, including：Fixed screw, sampler platform, near-infrared LED array, camera fix spiral shell
Silk and CCD camera；There is fixed screw in one end of sampler platform, the other end has near-infrared LED array and CCD camera,
And be fixed on by camera fixed screw on sampler platform, left sampler and right sampler are connected to and fixed with palm
Two ends for lateralling secure support arranged in horizontal direction of support vertical；Upper sampler is connected on support, and is located at
The support bracket fastened top of palm；Described lower sampler includes：Fixed screw, CCD camera, near-infrared lamp model, near-infrared
LED array, CCD camera and sampler platform；There is fixed screw in one end of sampler platform, the other end has near-infrared LED
Array and CCD camera, Near Infrared CCD camera and near-infrared lamp model are equipped with interposition, lower sampler is connected to support
On, and it is located at the support bracket fastened bottom of palm；
Described palm fixed support has a flat board, there is a hand open-work on flat board, in the flat board of the finger root of hand
On be connected with hand position fix bar, hand position fix bar is located at the center of supporting box；
Described Near Infrared CCD video camera is connected to opening position as in Figure 3-5, and corner is fixed by screw, configuration
850nm and 780nm bandpass filters, and before the camera lens of the adjustable focal length of Near Infrared CCD video camera, absorb hand vein
The sensitivity spectrum of the Near Infrared CCD video camera of image is 08 μm~15 μm；
Near-infrared light source uses the structure design of array, and the near-infrared light source uses the near-infrared of two kinds of different wave lengths
Light source forms, and described near infrared light source wavelength is respectively 850nm and 780nm, and near-infrared light source and each collection portion of hand
Position resemblance is identical, wherein the near-infrared light source for venous collection at palm, the back of the hand two is annular, and is used for finger, big
The near-infrared light source of venous collection is line style at thumb starting point, little finger starting point three, during collection timesharing open closely red at five
Outer light source, the hand vein in the image of the Near Infrared CCD video camera sync pulse jamming of relevant position can highlight well.
Beneficial effect, as a result of such scheme, identifying system by computer, upper computer software, instrument box and
The special near-infrared light source of installation, Near Infrared CCD video camera, self-control special shape limit determining for hand placement location in instrument box
Position copper post, specific wavelength optical filter, communication and power supply interface, rectangle supporting box form；Near-infrared light source and Near Infrared CCD
Camera chain is arranged on four positions up and down of rectangle supporting box, and hand position fix bar is arranged on rectangle branch
The center of casing is supportted, before the optical filter is arranged on the camera lens of Near Infrared CCD video camera, absorbs the near of hand vein image
The sensitivity spectrum of infrared CCD video camera is 08 μm~15 μm.Near-infrared light source is using near-infrared LED array as near-infrared
Light source, this near-infrared light source system are formed using the near-infrared light source of two kinds of different wave lengths (being respectively 850nm and 780nm), and
And the structure design of near-infrared light source respectively gathers position resemblance according to hand and has carried out unique design, wherein for palm,
The near-infrared light source of venous collection is annular at the back of the hand two, and is used for finger, thumb starting point, quiet at little finger starting point three
The near-infrared light source of arteries and veins collection be line style, during collection timesharing open near-infrared light source at five, the Near Infrared CCD of relevant position images
Hand vein in the image of machine sync pulse jamming can highlight well.Directly the USB line of equipment is inserted during system use
After the USB interface of computer, timesharing is opened and the near-infrared light source controlling switch of five diverse locations of closure is so that corresponding positions
The Near Infrared CCD video camera put obtains the palm vein of measured in real time, hand back vein, thumb starting point section of vein, small
Five kinds of hand vein characteristic images such as thumb starting point section of vein, finger vena (forefinger, middle finger, the third finger), get
Image is sent into after identification software after the processing of image mosaic and Feature Fusion Algorithm, by the feature extracted and database list
The feature stored in member carries out contrast identification, judges, and draws last identity identifying and authenticating result, realizes identification.
Instrument box described in system is rectangle box body structure, there is the positioning that a fixed human hand is placed at casing center
Plane, and the hand device made in the plane at hand placement for a kind of special substance, the special substance are used system
The near-infrared light source of wavelength have good permeability.
Near-infrared dot matrix near-infrared light source in system is independent design, takes full advantage of the light emitting anger of 1. near-infrared light source
2. near-infrared light source is mixed the characteristic spent between 120-140 degree using two kinds of different wave length near-infrared light sources of 850nm and 780nm
Design, the unique design can realize the uniform light for exposing to hand and hand transmission and vein reflecting effect are fine, institute's shape
Into vein image it is clear, uniform gray level, be easy to post-processing.
The near-infrared array light source structure design of different hand collection positions is different in system, wherein for palm, the back of the hand
The near-infrared light source of venous collection is annular at two, and be used for finger, thumb starting point, vein is adopted at little finger starting point three
The near-infrared light source integrated can ensure to collect the vein image of high quality as line style.
In system when gathering image, control is opened and closed using near-infrared light source and then on the one hand can effectively be kept away
Influence caused by other groups of light when exempting to gather the one of which in five groups of hand vein images, on the other hand can be improved whole
The accuracy and real-time of system.
After IMAQ, employ the merging algorithm for images voluntarily studied and the one dimensional image of five kinds of hand veins is carried out
Again positioning splicing, so as to realize hand vein three-dimensional imaging.
The upper computer software that completion is independently write using MATLAB, energy are employed in the processing and identification of vein stereo-picture
It is enough to realize from one-dimensional to the hand vein three-dimensional imaging of three-dimensional and efficient identification.
Advantage：It is simple and convenient, palm vein, hand back vein, thumb starting point portion only can be gathered by an equipment
Divide five kinds of hand vein feature hands such as vein, little finger starting point section of vein, finger vena (forefinger, middle finger, the third finger).Really
The accuracy and high efficiency of later stage identification are protected, apparatus structure is simple.
(1) present invention can gather palm vein, hand back vein, thumb starting point section of vein, little finger the same time
Five kinds of hand vein features such as starting point section of vein, finger vena (forefinger, middle finger, the third finger), collecting device is simple, collection
Quick and precisely；
(2) present invention is based on palm vein, hand back vein, thumb starting point section of vein, little finger starting point part
Five kinds of hand vein features such as vein, finger vena (forefinger, middle finger, the third finger) carry out identification, and noise immunity is good, has high
Anti- forgery, improve the accuracy of certification.
Brief description of the drawings
Fig. 1 is overall structure figure outside present system.
Fig. 2 is the cut-away view of present system.
Fig. 3 is the present invention lower near-infrared light source, in the vicinity infrared light supply, right near-infrared light source and CCD combiner structure charts.
Fig. 4 is the upper near-infrared light source of the present invention and CCD combiner structure charts.
Fig. 5 is present system workflow diagram.
In figure, 1-1, computer；1-2, data wire；1-3, supporting box；1-4, total control switch；1-5, communication interface；
1-6, hand back vein near-infrared light source controlling switch；1-7, finger vena near-infrared light source controlling switch；1-8, palm vein are near
Infrared light supply controlling switch；1-9, thumb vein near-infrared light source controlling switch；1-10, little finger vein near-infrared light source control
System switch；2-1, support；2-2, near-infrared light source and CCD combined platforms；2-3, laterally secure support；2-4, palm fix branch
Frame；2-5, hand position fix bar；2-6, crust of the device；2-7, support platform (platform interior is solid)；3-1, fixed screw；
3-2, sampler platform；3-3, near-infrared LED array；3-4, camera fixed screw；3-5, CCD camera；4-1, fixed spiral shell
Silk；4-2, Near Infrared CCD camera；4-3, near-infrared lamp model；4-4, near-infrared LED array；4-5, CCD camera.
Embodiment
Hand vein three-dimensional imaging and identifying system, including：Computer (Fig. 1-1), upper computer software and sampler；Take
The output end of sampling device and the input of computer are connected, and upper computer software is provided with computer；
Described sampler includes：Supporting box 1-3, support 2-1, laterally secure support 2-3, support platform 2-7, hand
Fixed support 2-4, near-infrared light source, sampler are slapped, the bottom in supporting box 1-3 is connected with support platform 2-7, supported
Support 2-1 is connected with platform 2-7, respectively connecting one to both sides on support 2-1 top laterallys secure support 2-3, lateral
Fixed support 2-3 end respectively connects a sampler, and palm fixed support 2-4 is connected with support 2-1, is fixed in palm
Support 2-4 top and bottom respectively connect a sampler.
Described sampler is respectively left sampler, right sampler, upper sampler and lower sampler, wherein left sampler,
Right sampler is identical with upper sampler, including：Fixed screw 3-1, sampler platform 3-2, near-infrared LED array 3-3, camera
Fixed screw 3-4 and CCD camera 3-5；There is fixed screw 3-1 in sampler platform 3-2 one end, the other end has near-infrared
LED array 3-3 and CCD camera 3-5, and be fixed on by camera fixed screw 3-4 on sampler platform 3-2, left sampling
Device and right sampler are connected to two ends for lateralling secure support 2-3, and are located at palm fixed support 2-4 both sides,
Upper sampler is connected on support 2-1, and positioned at palm fixed support 2-4 top；Described lower sampler includes：Fixed spiral shell
Silk 4-1, CCD camera 4-2, near-infrared lamp model 4-3, near-infrared LED array 4-4, CCD camera 4-5 and sampler platform；
There is fixed screw 4-1 in one end of sampler platform, the other end has near-infrared LED array 4-4 and CCD camera 4-5, in centre
There are Near Infrared CCD camera 4-2 and near-infrared lamp model 4-3 in position, and lower sampler is connected on support 2-1, and is located at palm
Fixed support 2-4 bottom；
Described palm fixed support 2-4 has a flat board, there is a hand open-work on flat board, hand finger root it is flat
Hand position fix bar 2-5 is connected with plate, hand position fix bar 2-5 is located at supporting box 1-3 center；
Described Near Infrared CCD video camera configuration 850nm and 780nm bandpass filters, and imaged installed in Near Infrared CCD
Before the camera lens of machine, the sensitivity spectrum for absorbing the Near Infrared CCD video camera of hand vein image is 08 μm~15 μm；
Near-infrared light source uses two kinds of differences using near-infrared LED array as near-infrared light source, the near-infrared light source
The near-infrared light source composition of wavelength, described near infrared light source wavelength is respectively 850nm and 780nm, and near-infrared light source with
Hand respectively gathers that position resemblance is identical, wherein the near-infrared light source for venous collection at palm, the back of the hand two is annular, and
Near-infrared light source for venous collection at finger, thumb starting point, little finger starting point three is line style, during collection timesharing open
Open near-infrared light source at five, the hand vein in the image of the Near Infrared CCD video camera sync pulse jamming of relevant position can be fine
Ground highlights.
System using when the USB line of equipment is directly inserted in the USB interface of computer after, timesharing open and closure five differences
The near-infrared light source controlling switch of position is so that the Near Infrared CCD video camera of the relevant position palm that obtains measured in real time is quiet
Arteries and veins, hand back vein, thumb starting point section of vein, little finger starting point section of vein, finger vena are forefinger, middle finger, nothing
Five kinds of hand vein characteristic images that name refers to, the image got are calculated after being sent into identification software by image mosaic and Fusion Features
After the processing of method, the feature extracted and the feature stored in Database Unit are subjected to contrast identification, judges, draws most
Identity identifying and authenticating result afterwards, realize identification.
First, three-dimensional imaging and identifying system based on hand vein
Hand vein three-dimensional imaging and identifying system, by computer, upper computer software, instrument box and instrument box
The near-infrared light source of interior installation, Near Infrared CCD Camera Positioning copper post, optical filter, communication and power supply interface, supporting box group
Into；Near-infrared light source and Near Infrared CCD camera chain are arranged on four, the upper and lower, left and right position of supporting box, position copper
Post is arranged on the center of rectangle supporting box, before the optical filter is arranged on the camera lens of Near Infrared CCD video camera, intake
The sensitivity spectrum of the Near Infrared CCD video camera of hand vein image is 08 μm~15 μm.Near-infrared light source uses near-infrared
LED array is as near-infrared light source, and this near-infrared light source system is using two kinds of different wave lengths (being respectively 850nm and 780nm)
Near-infrared light source forms, and the structure design of near-infrared light source respectively gathers position resemblance according to hand and carried out uniqueness and sets
Meter, wherein the near-infrared light source for venous collection at palm, the back of the hand two is annular, and it is used for finger, thumb starting point, small
The near-infrared light source of venous collection is line style at thumb starting point three, during collection timesharing open near-infrared light source at five, corresponding positions
Hand vein in the image for the Near Infrared CCD video camera sync pulse jamming put can highlight well.
System using when the USB line of equipment is directly inserted in the USB interface of computer after, timesharing open and closure five differences
The near-infrared light source controlling switch of position is so that the Near Infrared CCD video camera of the relevant position palm that obtains measured in real time is quiet
Arteries and veins, hand back vein, thumb starting point section of vein, little finger starting point section of vein, finger vena are (forefinger, middle finger, unknown
Refer to) etc. five kinds of hand vein characteristic images, the image got first pass around the bilateral hand vein picture quality voluntarily established
The judge of appraisement system, what is collected afterwards meets the vein image feeding knowledge of the hand diverse location of quality evaluation parameter request
After other software after the processing of image mosaic and Feature Fusion Algorithm, store the feature extracted and in Database Unit
Feature carries out contrast identification, judges, and draws last identity identifying and authenticating result, realizes identification.
2nd, the collection identification process of image
In image acquisition process, the right hand is put on the positioning copper post platform for limiting hand placement location by gathered person, hand
Nature is slapped to open.When palm is put it is steady when by CCD camera USB data line (each collection CCD camera draw a USB number
According to line) and power supply USB data line insert on computer and (transferred using USB interface expansion equipment), now open system operation
Switch (switch 1 in such as Fig. 1), the Near Infrared CCD camera group with near-infrared high-pass filter will divide as shown in 2 in Fig. 1
The palm vein of measured is not obtained not in real time, and hand back vein, thumb starting point section of vein, little finger starting point part are quiet
Five kinds of hand vein characteristic images such as arteries and veins, finger vena (forefinger, middle finger, the third finger) (during collection distinguish controlling switch 2,3,4,
5th, 6 the unlatching of near-infrared light source and closure are realized, to avoid when gathering a certain hand vein, the shadow of light at other collections
Ring), the image got is stored in computer under assigned catalogue.Such as Fig. 5 of operation afterwards host computer identification software, operation are soft
Part carries out geometric correction and denoising to 5 width images, realizes the three-dimensional of hand vein image with merging algorithm for images afterwards
Reconstruct, then carries out image registration, image is split with average and NiBlack algorithms afterwards, extracts characteristic point, extraction
The feature gone out in 3 D stereo vein image, the feature extracted and the feature stored in Database Unit are passed through into (2D)
2FPCA algorithms carry out contrast identification, judge, and draw last identity identifying and authenticating result.
Fig. 1 explanations：Button shares five in figure, wherein 1 is harvester total control switch, 2 be at hand back vein collection
Near-infrared light source controlling switch, 3 be near-infrared light source controlling switch at finger vena (forefinger, middle finger, the third finger) collection, and 4 are
Near-infrared light source controlling switch at palm vein collection, 5 be near-infrared light source control at thumb starting point section of vein collection
Switch, 6 be near-infrared light source controlling switch at little finger starting point section of vein collection.
Fig. 2 explanations：1 is near-infrared light source and the support of CCD combinations and hand placement platform in figure, for fixing 4 groups
Near-infrared light source and CCD combinations and hand placement platform.2 be that near-infrared light source and CCD are combined, for completing hand vein
Collection.3 be the near-infrared light source of side two and CCD combination fasteners.4 be palm fixed support when gathering, for realizing hand
Palm ad-hoc location is put, and realizes the hand vein IMAQ of system requirements, wherein palm placement platform is that special substance is transparent
Plate (transparent panel is substantially undamped to near-infrared light source selected by system).5 fix bars of position when being hand placement, for not
When being gathered with people hand position fixation with facilitate later image splice and identification.6 be the shell of whole device, and the shell can be every
For exhausted exterior light according to the influence to collection, and can avoids the influence shone during venous collection device interior lights well.7 be system branch
Platform is supportted, for supporting whole venous collection platform.
Fig. 3 explanations：1 is near-infrared light source and CCD combined platform fixed screws in figure, the fixation for position of platform.Figure
In 2 be near-infrared light source and CCD combined platforms.3 be near-infrared LED array in figure, for providing near infrared light in collection.Figure
In 4 be CCD camera fixed screw.5 be the CCD camera for vein imaging in figure, and the camera has very near infrared light
Good response, the high quality collection of hand vein image can be realized.
Fig. 4 explanations：1 is near-infrared light source and CCD combined platform fixed screws in figure, for consolidating for platform ad-hoc location
It is fixed.2 be the CCD camera for vein imaging in figure, and the camera has good response near infrared light, can realize hand
The high quality collection of vein image.3 be near-infrared lamp model when hand vein gathers in figure, uses subtended angle to be tied for 120 °
Structure is set, using the teaching of the invention it is possible to provide uniform near infrared light shines.4 be near-infrared LED array in figure, for providing near infrared light in collection.
5 be the CCD camera for vein imaging in figure, and the camera has good response near infrared light, can realize that hand is quiet
The high quality collection of arteries and veins image.
Identifying system is by the special near infrared light installed in computer, upper computer software, instrument box and instrument box
Source, Near Infrared CCD video camera, self-control special shape limit the positioning copper post of hand placement location, specific wavelength optical filter, communication with
Power supply interface, rectangle supporting box composition；Near-infrared light source and Near Infrared CCD camera chain are arranged on rectangle support case
Four positions up and down of body, positioning copper post are arranged on the center of rectangle supporting box, and the optical filter is arranged on
Before the camera lens of Near Infrared CCD video camera, absorb hand vein image Near Infrared CCD video camera sensitivity spectrum for 08 μm~
1·5μm.Near-infrared light source uses two kinds of differences using near-infrared LED array as near-infrared light source, this near-infrared light source system
The near-infrared light source composition of wavelength (being respectively 850nm and 780nm), and the structure design of near-infrared light source is respectively adopted according to hand
Collection position resemblance has carried out unique design, wherein the near-infrared light source for venous collection at palm, the back of the hand two is annular,
And be used for finger, thumb starting point, the near-infrared light source of venous collection is line style at little finger starting point three, timesharing during collection
Open near-infrared light source at five, the hand vein in the image of the Near Infrared CCD video camera sync pulse jamming of relevant position can be very
Highlight well.System using when the USB line of equipment is directly inserted in the USB interface of computer after, timesharing open and closure five
The near-infrared light source controlling switch of individual diverse location is so that the Near Infrared CCD video camera of relevant position obtains measured's in real time
Palm vein, hand back vein, thumb starting point section of vein, little finger starting point section of vein, finger vena (forefinger, in
Refer to, be nameless) etc. five kinds of hand vein characteristic images, the image got be sent into after identification software by image mosaic and feature
After the processing of blending algorithm, the feature extracted and the feature stored in Database Unit are subjected to contrast identification, judged,
Last identity identifying and authenticating result is drawn, realizes identification.
Instrument box described in system is rectangle box body structure, there is the positioning that a fixed human hand is placed at casing center
Plane, and the hand device made in the plane at hand placement for a kind of special substance, the special substance are used system
The near-infrared light source of wavelength have good permeability.
Near-infrared dot matrix near-infrared light source in system is independent design, takes full advantage of the light emitting anger of 1. near-infrared light source
2. near-infrared light source is mixed the characteristic spent between 120-140 degree using two kinds of different wave length near-infrared light sources of 850nm and 780nm
Design, the unique design can realize the uniform light for exposing to hand and hand transmission and vein reflecting effect are fine, institute's shape
Into vein image it is clear, uniform gray level, be easy to post-processing.
The near-infrared array light source structure design of different hand collection positions is different in system, wherein for palm, the back of the hand
The near-infrared light source of venous collection is annular at two, and be used for finger, thumb starting point, vein is adopted at little finger starting point three
The near-infrared light source integrated can ensure to collect the vein image of high quality as line style.
In system when gathering image, control is opened and closed using near-infrared light source and then on the one hand can effectively be kept away
Influence caused by other groups of light when exempting to gather the one of which in five groups of hand vein images, on the other hand can be improved whole
The accuracy and real-time of system.
After IMAQ, employ the merging algorithm for images voluntarily studied and the one dimensional image of five kinds of hand veins is carried out
Again positioning splicing, so as to realize hand vein three-dimensional imaging.
The processing and identification of vein stereo-picture employ the upper computer software that completion is independently write using MATLAB, can
Realize from one-dimensional to the hand vein three-dimensional imaging of three-dimensional and efficient identification.
Claims (1)
1. a kind of hand vein three-dimensional imaging and identifying system, it is characterized in that：Identifying system includes：Computer, upper computer software
And sampler；The output end of sampler and the input of computer are connected, and upper computer software is provided with computer；
Described sampler includes：Supporting box, support, laterally secure support, be support platform, palm fixed support, near red
Outer light source and sampler；Bottom in supporting box is connected with support platform, and support is connected with support platform, in support
Top respectively connect one to both sides and laterally secure support, lateralling secure the end of support respectively one sampler of connection, propping up
Palm fixed support is connected with frame, a sampler is respectively connected in the support bracket fastened top and bottom of palm；
Described sampler is respectively left sampler, right sampler, upper sampler and lower sampler, wherein left sampler, the right side take
Sample device and upper sampler all same, including：Fixed screw, sampler platform, near-infrared LED array, camera fixed screw and
CCD camera；There is fixed screw in one end of sampler platform, the other end has near-infrared LED array and CCD camera, and leads to
Cross camera fixed screw to be fixed on sampler platform, left sampler and right sampler are connected to and palm fixed support
Vertical two ends for lateralling secure support arranged in horizontal direction；Upper sampler is connected on support, and is located at palm
Support bracket fastened top；Described lower sampler includes：Fixed screw, CCD camera, near-infrared lamp model, near-infrared LED battle array
Row, CCD camera and sampler platform；Have fixed screw in one end of sampler platform, the other end have near-infrared LED array and
CCD camera, Near Infrared CCD camera and near-infrared lamp model are equipped with interposition, lower sampler is connected on support, and position
In the support bracket fastened bottom of palm；
Described palm fixed support has a flat board, there is a hand open-work on flat board, connects on the flat board of the finger root of hand
Hand position fix bar is connected to, hand position fix bar is located at the center of supporting box；
Described Near Infrared CCD video camera configuration 850nm and 780nm bandpass filters, and installed in Near Infrared CCD video camera
Before camera lens, the sensitivity spectrum for absorbing the Near Infrared CCD video camera of hand vein image is 08 μm ~ 15 μm；
Near-infrared light source is used as light source using near-infrared LED array, and the near-infrared light source uses the near red of two kinds of different wave lengths
Outer light source forms, and described near infrared light source wavelength is respectively 850nm and 780nm, and near-infrared light source respectively gathers with hand
Position resemblance is identical, wherein for venous collection at palm, the back of the hand two near-infrared light source for annular, and be used for finger,
The near-infrared light source of venous collection is line style at thumb starting point, little finger starting point three, during collection timesharing open near at five
Infrared light supply, the hand vein in the image of the Near Infrared CCD video camera sync pulse jamming of relevant position can highlight.
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| CN105426843B (en) * | 2015-11-19 | 2019-02-22 | 安徽大学 | Single-lens lower palm vein and palm print image acquisition device and image enhancement and segmentation method |
| CN106022210A (en) * | 2016-05-04 | 2016-10-12 | 成都指码科技有限公司 | Vein profile three-dimensional point cloud matching identity identifying method and device |
| CN107169428A (en) * | 2017-04-28 | 2017-09-15 | 杨明远 | High-quality vein image imaging system |
| CN110188676B (en) * | 2019-05-29 | 2021-04-13 | Oppo广东移动通信有限公司 | Vein collection method and related products |
| CN113505722B (en) * | 2021-07-23 | 2024-01-02 | 中山大学 | Living body detection method, system and device based on multi-scale feature fusion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196987A (en) * | 2007-12-25 | 2008-06-11 | 哈尔滨工业大学 | On-line palm print, palm vein image personal identification method and its special capturing instrument |
| CN202929641U (en) * | 2012-12-03 | 2013-05-08 | 哈尔滨金融学院 | Hand image acquisition system based on computer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3558025B2 (en) * | 2000-09-06 | 2004-08-25 | 株式会社日立製作所 | Personal authentication device and method |
| CN202331494U (en) * | 2011-10-27 | 2012-07-11 | 广西润德信息科技有限公司 | Column type palm vein authenticator |
| CN202677422U (en) * | 2012-06-18 | 2013-01-16 | 北京鑫光智信软件技术有限公司 | Vein identification apparatus |
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|---|---|---|---|---|
| CN101196987A (en) * | 2007-12-25 | 2008-06-11 | 哈尔滨工业大学 | On-line palm print, palm vein image personal identification method and its special capturing instrument |
| CN202929641U (en) * | 2012-12-03 | 2013-05-08 | 哈尔滨金融学院 | Hand image acquisition system based on computer |
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