CN103617419A - Finger vein recognition device and method with living finger detection function - Google Patents
Finger vein recognition device and method with living finger detection function Download PDFInfo
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- CN103617419A CN103617419A CN201310636653.4A CN201310636653A CN103617419A CN 103617419 A CN103617419 A CN 103617419A CN 201310636653 A CN201310636653 A CN 201310636653A CN 103617419 A CN103617419 A CN 103617419A
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- 210000003462 vein Anatomy 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 20
- 210000001015 abdomen Anatomy 0.000 claims description 6
- 230000006870 function Effects 0.000 claims description 4
- 230000004313 glare Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008447 perception Effects 0.000 claims description 2
- 239000008280 blood Substances 0.000 description 8
- 210000004369 blood Anatomy 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a finger vein recognition device and a method with a living finger detection function, comprising a near infrared light lamp group arranged around a finger; the device also comprises a guide groove which is positioned in the middle of the device and used for guiding the finger placing position; the bottom of the guide groove is provided with a finger placing platform; the lower part of the platform is provided with a camera device for shooting veins; the center of the finger placing platform is a camera shooting window; a light filter is arranged between a camera of the camera device and the camera window; an infrared pulse wave detection sensor is arranged on or below the finger placing platform; the device is also internally provided with a control module for controlling the shooting process, processing the shooting data and processing the data detected by the infrared pulse wave detection sensor. The invention detects the pulse through the built-in infrared pulse wave detection sensor and judges whether the object to be detected is a living finger, thereby improving the reliability of finger vein identification.
Description
Technical field
The present invention relates to a kind of biometric devices and method, especially relate to a kind of finger vein identification device and method.
Background technology
Along with the increasingly extensive application of biological identification technology, the phenomenon of forging personation biological characteristic also starts to increase.Even to the finger vein identification device in biological characteristic authentication frontline technology, thereby adulterator also likely forges the finger vena pattern finger vein identification device of out-tricking by the special material of absorption near infrared ray.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and a kind of finger vein identification device and method that improves finger vein identification technology reliability is provided.Technical scheme of the present invention has been utilized following principle:
Human heart periodically shrinks and diastole causes aortal contraction and diastole, makes blood stream pressure start to propagate along whole arterial system from aortic root with the form of ripple, and this ripple is called pulse wave.When heart contraction, arteries volume increases; When diastole, arteries volume reducing.In tissue, the artery component content of finger is high.According to lambert Bill (Lamber Beer) law, material is directly proportional in the absorbance at certain wavelength place and its concentration.When the illumination of certain wavelength is mapped in tissue, the light intensity that is absorbed, measured after reflection loss by tissue will reflect the architectural feature of illuminated position tissue to a certain extent.Finger tissue can be divided into non-blood tissues and the blood tissues such as skin, muscle, bone, wherein the absorbing amount of non-blood tissues is certain substantially, and in blood, beating of venous blood is very faint with respect to arterial blood, therefore can be considered as constantly, can think that the variation after light transmission finger is only caused by the full of arterial blood.So under the irradiation of the light source of certain wavelength, by detections see through the special wavelength light of pointing light intensity or or the light intensity of handling the specific wavelength of digital reflex, just can indirectly measure the pulse wave of human body.
Concrete technical scheme of the present invention is:
A finger vein identification device with live finger detecting function, described device comprises the near infrared light modulation group that is arranged on finger periphery; Described finger vein identification device also comprise be positioned at its middle part, for guide finger placement location gathering sill; The bottom of described gathering sill is finger placement platform; The bottom of described finger placement platform is provided with the camera head that finger vena is taken; The part that is positioned at the described camera head printing opacity that can photograph at finger placement platform center is shooting window; Between the camera of described camera head and shooting window, be provided with the optical filter that filters surround lighting and veiling glare impact; At described finger placement platform or its, have infrared ray pulse wave detection sensor; Described finger vein identification device is also built-in with described camera head and is connected with described infrared ray pulse wave detection sensor signal, for described camera head is carried out to the control of shooting process, the control module that the processing of photographed data and data that described pulse wave detection sensor is detected are processed;
The finger vein identification method of described finger vein identification device is: by described control module, control described near infrared light modulation group and irradiate finger, described control module is controlled described infrared ray pulse wave detection sensor image data; Described control module is controlled described camera head and is gathered finger venous image, and the vein image collecting is processed, and processes the rear and comparing of putting on record, as with put on record data none mate, finger vena identification is not passed through, and the identification of live finger vein is not passed through, and identifying finishes; As certain Data Matching with putting on record, finger vena identification is passed through, the data that described control module collects described infrared ray pulse wave detection sensor are processed, if all infrared ray pulse wave detection sensors all detect pulse wave, live finger identification is passed through, the identification of live finger vein is passed through, and identifying finishes; If there is an infrared ray pulse wave detection sensor pulse wave not detected, live finger identification is not passed through, and the identification of live finger vein is not passed through, and finger vena identifying finishes;
Further, described near infrared light modulation group is one group or two groups, the either side that its riding position is the upper and lower, left and right side of finger or a both sides;
Further, at the longitudinal midline two ends of described finger placement platform or the both sides that are positioned at described camera head of the positive bottom of described longitudinal midline be respectively equipped with an infrared ray pulse wave detection sensor that is used for surveying finger fingertip and surveys finger pulp loss, Yi Bian or only in the wherein one end on above-mentioned two ends or both sides or be provided with an infrared ray pulse wave detection sensor that is used for surveying finger tip or refers to abdomen;
Further, described infrared ray pulse wave detection sensor is integrated with infrared light emission light source;
Further, before described near infrared light modulation group, be provided with the concentrating component for the light irradiating angle of regulating near-infrared light modulation group.
The present invention also provides a kind of live finger method for detecting for finger vein identification device, be specially: by infrared ray pulse wave detection sensor is set in finger vein identification device, come perception testee whether to there is the beat pulse of live finger, thereby judge whether described object is live finger.
Beneficial effect of the present invention: owing to having adopted above technical scheme, finger vein identification device of the present invention is surveyed pulse by the infrared ray pulse wave detection sensor arranging in the inner, judge whether testee is live finger, prevent that adulterator from forging the finger vena pattern finger vein identification device of out-tricking by the special material of absorption near infrared ray, thereby improved the reliability of finger vena identification.
Accompanying drawing explanation
Fig. 1 is the front view of the device of embodiment mono-;
Fig. 2 is the vertical view of the device of embodiment mono-;
Fig. 3 is the left view of the device of embodiment mono-;
Fig. 4 is the front view of the device of embodiment bis-;
Fig. 5 is the vertical view of the device of embodiment bis-;
Fig. 6 is the left view of the device of embodiment bis-;
Fig. 7 is the front view of the device of embodiment tri-;
Fig. 8 is the vertical view of the device of embodiment tri-;
Fig. 9 is the left view of the device of embodiment tri-;
Figure 10 is the finger vein identification method block diagram of device of the present invention.
Embodiment
It is below the embodiment of three preferred embodiments of the present invention.
Embodiment mono-
As shown in Figure 1 to Figure 3, a kind of finger vein identification device with live finger detecting function, finger vein identification device comprise be positioned at its middle part, for guide finger 200 placement locations gathering sill 101; The bottom of gathering sill 101 is finger placement platform; It also comprises the near infrared light modulation group 102 being arranged in gathering sill 101 wall both sides; Before near infrared light modulation group 102, be provided with the concentrating component 103 for the light irradiating angle of regulating near-infrared light modulation group 102; The part that is positioned at camera head 104 printing opacity that can photograph at finger placement platform center is shooting window 105; Between the camera of camera head 104 and shooting window 105, be provided with the optical filter 106 that filters surround lighting and veiling glare impact; On finger placement platform the corresponding finger tip in longitudinal midline two ends and the position that refers to abdomen be respectively equipped with one be used for surveying finger tip and and detection refer to the infrared ray pulse wave detection sensor 108 of abdomen; Described finger vein identification device is also built-in with described camera head 104 and is connected with described infrared ray pulse wave detection sensor 108 signals, the control module 107 of processing for the data of described camera head 104 being carried out to the control of shooting process and the processing of photographed data and described pulse wave detection sensor 108 is detected.The live finger method for detecting of this device is: by control module 107, control two groups of near infrared light modulation groups 102 and irradiate finger 200, control module 107 is controlled camera head 104 and is gathered image and the vein picture collecting is processed, make the judgement of vein identification, if the finger 200 of placing in vein identification judgment means mates with certain finger of having put on record, control module 107 will be in place and starts to process to installing by this finger tip and finger belly position pulse wave raw data that two set infrared ray pulse wave detection sensors 108 obtain respectively between vein judgement tailend from pointing 200, if process and assert that two positions all do not detect or only have a place beat pulse to be detected through control module 107, send the information that live finger do not detected, otherwise make finger vena identification by judgement.
Embodiment bis-
As shown in Figures 4 to 6, the difference of the device of the present embodiment and embodiment mono-is, it is provided with one group of near infrared light modulation group 102 on a guiding cell wall, and its one end at the corresponding finger tip of finger placement platform longitudinal midline is provided with an infrared ray pulse wave detection sensor 108 simultaneously; 107 of control modules judge whether live finger by this unique infrared ray pulse wave detection sensor 108, and other identifying processing methods of control module 107 are identical with embodiment mono-.
Embodiment tri-
As shown in Figure 7 to 9, the difference of the device of the present embodiment and embodiment mono-is, it is provided with one group of near infrared light modulation group 102 directly over gathering sill 101, its one side that is positioned at described camera head 104 in the positive bottom of longitudinal midline of finger placement platform is provided with one and is used for surveying the infrared ray pulse wave detection sensor 108 that refers to abdomen simultaneously, 107 of control modules judge whether live finger by this unique infrared ray pulse wave detection sensor 108, and other identifying processing methods of control module 107 are identical with embodiment mono-.
Claims (7)
1. a finger vein identification device with live finger detecting function, is characterized in that: described finger vein identification device comprises the near infrared light modulation group that is arranged on finger periphery; Described finger vein identification device also comprises and is positioned at device middle part, for guiding the gathering sill of finger placement location; The bottom of described gathering sill is finger placement platform; The bottom of described finger placement platform is provided with the camera head that finger vena is taken; The part of the printing opacity that is positioned at finger placement platform center that described camera head can photograph is shooting window; Between the camera of described camera head and shooting window, be provided with the optical filter that filters surround lighting and veiling glare impact; At described finger placement platform or its, have infrared ray pulse wave detection sensor; Described finger vein identification device is also built-in with described camera head and is connected with described infrared ray pulse wave detection sensor signal, for described camera head is carried out to the control of shooting process, the control module that the processing of photographed data and data that described pulse wave detection sensor is detected are processed.
2. finger vein identification device according to claim 1, is characterized in that: described near infrared light modulation group is one group or two groups, the either side that its riding position is the upper and lower, left and right side of finger or a both sides.
3. finger vein identification device according to claim 1, it is characterized in that: at the longitudinal midline two ends of described finger placement platform or on the both sides of the described camera head of the positive bottom of described longitudinal midline, be respectively equipped with an infrared ray pulse wave detection sensor that is used for surveying finger fingertip and surveys finger pulp loss, Yi Bian or only in the wherein one end on above-mentioned two ends or both sides or be provided with an infrared ray pulse wave detection sensor that is used for surveying finger tip or refers to abdomen.
4. finger vein identification device according to claim 1, is characterized in that: described infrared ray pulse wave detection sensor is integrated with infrared light emission light source.
5. according to the finger vein identification device described in the arbitrary claim of claim 1 to 4, it is characterized in that: before described near infrared light modulation group, be provided with the concentrating component for the light irradiating angle of regulating near-infrared light modulation group.
6. the finger vein identification method of finger vein identification device according to claim 1, it is characterized in that: by described control module, control described near infrared light modulation group and irradiate finger, described control module is controlled described infrared ray pulse wave detection sensor image data; Described control module is controlled described camera head and is gathered finger venous image, and the vein image collecting is processed, and processes the rear and comparing of putting on record, as with put on record data none mate, finger vena identification is not passed through, and the identification of live finger vein is not passed through, and identifying finishes; As certain Data Matching with putting on record, finger vena identification is passed through, the data that described control module collects described infrared ray pulse wave detection sensor are processed, if all infrared ray pulse wave detection sensors all detect pulse wave, live finger identification is passed through, the identification of live finger vein is passed through, and identifying finishes; If there is an infrared ray pulse wave detection sensor pulse wave not detected, live finger identification is not passed through, and the identification of live finger vein is not passed through, and identifying finishes.
7. the live finger method for detecting for finger vein identification device, it is characterized in that: by infrared ray pulse wave detection sensor is set in finger vein identification device, come perception testee whether to there is the beat pulse of live finger, thereby judge whether described object is live finger.
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| CN201310636653.4A CN103617419B (en) | 2013-12-02 | 2013-12-02 | Finger vein identification device with live finger detecting function and method |
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| CN201310636653.4A CN103617419B (en) | 2013-12-02 | 2013-12-02 | Finger vein identification device with live finger detecting function and method |
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| CN103617419A true CN103617419A (en) | 2014-03-05 |
| CN103617419B CN103617419B (en) | 2018-10-16 |
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| CN105266780A (en) * | 2015-11-24 | 2016-01-27 | 京东方科技集团股份有限公司 | Intelligent wearable device and detection method for biological characteristic information |
| WO2017010943A1 (en) * | 2015-07-14 | 2017-01-19 | Jing King Tech Holdings Pte. Ltd. | Finger vein acquisition instrument |
| CN106645732A (en) * | 2016-10-31 | 2017-05-10 | 苏州立源信智能科技有限公司 | Infrared automatic-detection blood sugar detector |
| CN106960194A (en) * | 2017-03-24 | 2017-07-18 | 徐晨 | A kind of vein identification device |
| CN107126671A (en) * | 2017-06-19 | 2017-09-05 | 钦州学院 | A kind of safe abdominal muscle wheel |
| CN107157492A (en) * | 2017-05-19 | 2017-09-15 | 国家电网公司 | A kind of embedded human physiologic information non-invasive detection system and data processing method |
| CN107194367A (en) * | 2017-06-07 | 2017-09-22 | 重庆科技学院 | Biopsy method in finger vena identification process |
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| TWI695182B (en) * | 2015-06-16 | 2020-06-01 | 美商眼驗股份有限公司 | Systems and methods for spoof detection and liveness analysis |
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| CN107851182B (en) * | 2015-06-16 | 2019-04-19 | 眼验股份有限公司 | For palming off the system and method for detection and liveness analysis |
| WO2017010943A1 (en) * | 2015-07-14 | 2017-01-19 | Jing King Tech Holdings Pte. Ltd. | Finger vein acquisition instrument |
| CN105266780A (en) * | 2015-11-24 | 2016-01-27 | 京东方科技集团股份有限公司 | Intelligent wearable device and detection method for biological characteristic information |
| CN106645732A (en) * | 2016-10-31 | 2017-05-10 | 苏州立源信智能科技有限公司 | Infrared automatic-detection blood sugar detector |
| CN108073920A (en) * | 2016-11-11 | 2018-05-25 | 李谦 | Finger vein image acquisition and recognition methods |
| CN106960194A (en) * | 2017-03-24 | 2017-07-18 | 徐晨 | A kind of vein identification device |
| CN107157492A (en) * | 2017-05-19 | 2017-09-15 | 国家电网公司 | A kind of embedded human physiologic information non-invasive detection system and data processing method |
| CN107157492B (en) * | 2017-05-19 | 2023-06-02 | 国家电网公司 | Embedded human physiological information noninvasive detection system and data processing method |
| CN107194367A (en) * | 2017-06-07 | 2017-09-22 | 重庆科技学院 | Biopsy method in finger vena identification process |
| CN107126671A (en) * | 2017-06-19 | 2017-09-05 | 钦州学院 | A kind of safe abdominal muscle wheel |
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| CN110866235B (en) * | 2019-10-21 | 2021-11-23 | 上海交通大学 | Identity recognition method and device for simultaneously capturing human pulse and vein images |
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