CN201788518U - Identification device with facial image and iris image acquisition functions - Google Patents
Identification device with facial image and iris image acquisition functions Download PDFInfo
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- CN201788518U CN201788518U CN2010205255432U CN201020525543U CN201788518U CN 201788518 U CN201788518 U CN 201788518U CN 2010205255432 U CN2010205255432 U CN 2010205255432U CN 201020525543 U CN201020525543 U CN 201020525543U CN 201788518 U CN201788518 U CN 201788518U
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Abstract
The utility model relates to an identification device with facial image and iris image acquisition functions. An 850 nm infrared LED array serves as a facial auxiliary light source, and the facial auxiliary light source is set into an automatic mode for supplemental lighting during the facial identification; a facial dynamic adjustment supplemental lighting circuit is arranged and connected with a facial electronic image acquisition device, a facial PWM (Pulse-Width Modulation) drive circuit for the facial auxiliary light source and a facial data communication interface respectively; a 950 nm infrared LED array serves as an iris auxiliary light source, and the iris auxiliary light source is set into an automatic mode for supplemental lighting during the iris identification; and an iris dynamic adjustment supplemental lighting circuit is arranged and connected with an iris electronic image acquisition device, an iris PWM (Pulse-Width Modulation) drive circuit for the iris auxiliary light source and an iris data communication interface respectively. The dynamic adjustment supplemental lighting circuits are respectively arranged in the iris image acquisition system and the facial image acquisition system, the optical system is designed reasonably, and the corresponding optical filter is configured, so as to increase the content of the pure light source, so that the image acquisition speed and the iris image quality are obviously improved.
Description
Technical field
The utility model relates to method or the device that the applying electronic circuit carries out fingerprint recognition, particularly relates to a kind of recognition device with face picture and iris capturing function.
Background technology
Human body self possesses numerous unique biological features, as fingerprint, face picture and iris or the like.Existing face is low as the recognition device recognition accuracy, because interindividual difference is little, proprietary face structure is all similar; Secondly, the profile of people's face is very unstable, and the people can produce a lot of expressions, and in different viewing angles, visual pattern differs greatly.In addition, the identification of face picture also is subjected to multifactor impacts such as overcovers such as illumination, sunglasses, age.And iris identification device is based in life maintenance quite high stability and the otherness of iris feature the people, and the convergent-divergent of pupil makes iris tissue have the notable feature of biological tissue, can effectively prevent artificial forgery, make that iris recognition is to use the most to make things convenient for a kind of accurately in comprising all bio-identification of fingerprint.Yet iris image is subjected to influence that extraneous light, skin color, iris hair, hair style, glasses, expression and attitude change also very greatly, causes single iris image identification erroneous judgement and refuses to declare large percentage, is difficult to satisfy the high-level demand of client.In addition, the light source in the existing iris image gathering system is simple light source such as infrared ray, ultraviolet ray mostly, and the simple light source of these indoor environments is difficult to the image effect that reaches satisfied with respect to other light sources.
Summary of the invention
Technical problem to be solved in the utility model is the defective that remedies above-mentioned prior art, and a kind of recognition device with face picture and iris capturing function is provided.
Technical matters of the present utility model is solved by the following technical programs.
This recognition device with face picture and iris capturing function, comprise facial image acquisition system, iris image gathering system, and the facial iris recognition arithmetic system that is connected respectively with facial image acquisition system, iris image gathering system, the liquid crystal image display system, human-computer interaction interface and the signal output apparatus that are connected respectively with facial iris recognition arithmetic system.
Described facial image acquisition system comprises the facial electronic image acquisition means that is provided with facial imaging lens and facial cmos image sensor, the facial secondary light source that is provided with facial PWM driving circuit and face data communication interface, described facial imaging lens is connected successively with facial cmos image sensor and is arranged on system's primary optical axis, and the face data communication interface is connected with facial iris recognition arithmetic system.
Described iris image gathering system comprises the iris electronic image acquisition means that is provided with iris imaging camera lens and iris cmos image sensor, the iris secondary light source that is provided with iris PWM driving circuit and iris data communication interface, described iris imaging camera lens is connected with the iris cmos image sensor and is sequentially arranged on system's primary optical axis, and the iris data communication interface is connected with facial iris recognition arithmetic system.
This characteristics with recognition device of face picture and iris capturing function are:
Described facial secondary light source comprises the 850nm infrared LED array, and the light filling effect is only arranged, and the illumination main light source is the external environment light source, and described facial secondary light source is set at the automatic mode light filling during face recognition.
Be provided with facial dynamic adjustments light filling circuit, described facial dynamic adjustments light filling circuit is connected with the facial PWM driving circuit and the face data communication interface of facial electronic image acquisition means, facial secondary light source respectively.Strength information and default parameter that described facial dynamic adjustments light filling circuit is gathered environment light source according to facial cmos image sensor are determined facial secondary light source luminance compensation value, control the luminous intensity light filling of described facial PWM driving circuit output pwm signal to described facial secondary light source, make the facial light source parameters of carrying out the identification of face picture keep stable, the variation of minimizing system exposure parameter, make the exposure parameter relative fixed, with the speed of raising system extraction image, solve and when extraneous light is more weak, need improve the time shutter, slow and the not good problem of picture quality of images acquired.
Described iris secondary light source comprises the 950nm infrared LED array, and noiseless mutually between the facial secondary light source, and the light filling effect is only arranged, human eye there is not any injury, the illumination main light source is the external environment light source, and described iris secondary light source is set at the automatic mode light filling during iris recognition.
Be provided with iris dynamic adjustments light filling circuit, described iris dynamic adjustments light filling circuit is connected with the iris PWM driving circuit and the iris data communication interface of iris electronic image acquisition means, iris secondary light source respectively.Strength information and default parameter that described iris dynamic adjustments light filling circuit is gathered environment light source according to the iris cmos image sensor are determined iris secondary light source luminance compensation value, control the luminous intensity light filling of described iris PWM driving circuit output pwm signal to described iris secondary light source, make the iris light source parameters of carrying out iris recognition keep stable, the variation of minimizing system exposure parameter, make the exposure parameter relative fixed, with the speed of raising system extraction image, solve and when extraneous light is more weak, need improve the time shutter, slow and the not good problem of picture quality of images acquired.
Technical matters of the present utility model is solved by following further technical scheme.
Described facial dynamic adjustments light filling circuit comprises photoelectric sensor, the simulating signal comparer that is connected with described photoelectric sensor, convert the variation of light intensity, illuminance to electric signal by described photoelectric sensor, by described simulating signal comparer output control signal, control the luminous intensity light filling of described facial PWM driving circuit output pwm signal to described facial secondary light source.
Described iris dynamic adjustments light filling circuit comprise light intensity illuminance testing circuit, with the programmable logic device (PLD) that described light intensity illuminance testing circuit is connected, described light intensity illuminance testing circuit is connected with the infrared LED array of described iris secondary light source.Convert the variation of light intensity, illuminance to electric signal by described light intensity illuminance testing circuit, by described programmable logic device (PLD) output control signal, control the luminous intensity light filling of described iris PWM driving circuit output pwm signal to described iris secondary light source.
Be equipped with high diffuser panel before the described facial secondary light source, power on and promptly start working, under high diffuser panel effect, form even planar light source, during installation, the projecting direction of described facial secondary light source and people's face angle are 42 °, adjustment by setting height(from bottom), make facial secondary light source and people's face plane form suitable angle, cause facial cmos image sensor to be gathered less than the effective problem of face-image excessively by force because of the image local supersaturation with the effective solution person of wearing glasses lens surface reflection ray.
Be equipped with high diffuser panel before the described iris secondary light source, power on and promptly start working, under high diffuser panel effect, form even planar light source, during installation, the projecting direction of described iris secondary light source and human eye angle are 13 °, pass through setting height(from bottom), make iris secondary light source and people's eyes plane form suitable angle, cause the iris cmos image sensor to be gathered less than the effective problem of eye image excessively by force because of the image local supersaturation with the effective solution person of wearing glasses lens surface reflection ray.
Described facial electronic image acquisition means is provided with the facial optical filter of combined type low pass arrowband 850nm, require selectivity to end light wave according to CMOS in proportion to the susceptibility of the light of different-waveband, the basic infrared light that only passes through the 850nm wavelength, make CMOS obtain evenly soft 850nm infrared light, the image of gathering is not subjected to the influence of high light, color, the colour of skin, complexion and woman's persona look, and at visible light more weak night, has the night vision performance, profile and feature that output image is just facial.
The facial optical filter of described combined type low pass arrowband 850nm comprises infrared fileter and visible filter, is arranged on facial cmos image sensor rear or is embedded in the facial imaging lens.
Described iris electronic image acquisition means is provided with 950nm arrowband iris optical filter, is near infrared light by the 950nm wavelength only, and making the light source by CMOS is simple infrared light supply, and the image of collection is more clear reliable.
Described 950nm arrowband iris optical filter is an infrared fileter, is arranged on iris imaging camera lens the place ahead.
Technical matters of the present utility model is solved by following further again technical scheme.
Described facial iris recognition arithmetic system adopts the master-slave mode based on dual-CPU architecture, comprises main control unit and connected from the control unit; When host CPU breaks down cisco unity malfunction, still can carry out necessary work from CPU, to improve the security of system.
Described main control unit is the host CPU of 32 Embedded RISC chip cores of ARM company design, described host CPU connects LCD display, facial image acquisition system, iris image gathering system, real time clock circuit, switching on and shutting down and reset circuit, voice output circuit and Peripheral Interface respectively, is used to realize that iris and facial image acquisition, comparison, data communication, data storage show and output control.
Described is the CMOS microcontroller with Flash sheet internal program storer from the control unit, described microcontroller as the subcontrol of system connect the keypad, pilot lamp, emergency cell, bell circuit, locking control signal output circuit, alarm output device of human-computer interaction interface respectively, based on the data-signal output circuit of Wiegand (Wei root) 26 communications protocol, Ethernet interface and serial communication interface, be used for keyboard scan, data backup, emergent control, real-time clock, and finish the serial communication between AT89S52 and the host CPU.The Wiegand26 communications protocol is the standard agreement about access control that the sub-council of organization access control criterion formulates that is subordinate to by the U.S. industrial safety council (Security Industry Association is abbreviated as SIA).When externally fed disconnected suddenly, emergency cell can be powered to machine immediately.Guarantee user's normal use.When host CPU breaks down cisco unity malfunction, will automatically reset from CPU, machine restarts, and to improve the security of system, recovers operate as normal.
Described facial imaging lens and iris imaging camera lens are three aspherical lens, improve image quality comprehensively, make the image of collection not yielding, aberration, aberration and the curvature of field all reach high levels: aberration is 200 μ m to the maximum, aberration is close to 0, and the curvature of field is 0.3% to the maximum.
Described facial cmos image sensor and described iris cmos image sensor are that 1/4inch optical dimensions, vertical definition are that 600 television lines (TVL), horizontal definition are the cmos image sensor that 800 television lines (TVL), resolution are at least 1,300,000 pixels.
Described liquid crystal image display system comprises LCD display and driving circuit thereof.
Described human-computer interaction interface is the human-computer interaction interface that comprises keypad, pilot lamp and intelligent voice prompt.Machine can be made corresponding voice suggestion and should how to be cooperated by the picker according to particular problem in the process of registration or identification, to improve the speed of gathering.
Described face data communication interface and described iris data communication interface are USB interface.
The beneficial effect that the utility model is compared with the prior art is:
The utility model is by being provided with dynamic adjustments light filling circuit respectively in iris image gathering system and facial image acquisition system, appropriate design optical system and configuration respective filter, improving the content of simple light source, thereby obviously improve image acquisition speed and iris image quality.
Description of drawings
Fig. 1 is the composition structural drawing of the utility model embodiment;
Fig. 2 is the appearance assumption diagram of the utility model embodiment;
Fig. 3 is that the utility model embodiment identification arithmetic system is formed block scheme;
Fig. 4 is the composition block scheme of the facial dynamic adjustments light filling circuit of Fig. 1;
Fig. 5 is the composition block scheme of the iris dynamic adjustments light filling circuit of Fig. 1;
Fig. 6 is the position view that the utility model embodiment is obtained best face-image;
Fig. 7 is the position view that the utility model embodiment is obtained best iris image.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described.
A kind of recognition device shown in Fig. 1～7 with face picture and iris capturing function, comprise facial image acquisition system 5, iris image gathering system 4, and the facial iris recognition arithmetic system 6 that is connected respectively with facial image acquisition system 5, iris image gathering system 4, the liquid crystal image display system 2, human-computer interaction interface and the signal output apparatus 7 that are connected respectively with facial iris recognition arithmetic system 6.
Facial image acquisition system 5 comprises the facial electronic image acquisition means 51 that is provided with facial imaging lens and facial cmos image sensor, the facial secondary light source 52 that is provided with facial PWM driving circuit 521 and face data communication interface 54, facial imaging lens is connected successively with facial cmos image sensor and is arranged on system's primary optical axis, and face data communication interface 54 is connected with facial iris recognition arithmetic system 6.
Facial secondary light source 52 comprises 850nm infrared LED array 522, and the light filling effect is only arranged, and the illumination main light source is the external environment light source, and facial secondary light source 52 is set at the automatic mode light filling during face recognition.
Be provided with facial dynamic adjustments light filling circuit 53, facial dynamic adjustments light filling circuit 53 is connected with the facial PWM driving circuit 521 and the face data communication interface 54 of facial electronic image acquisition means 51, facial secondary light source 52 respectively.Strength information and default parameter that facial dynamic adjustments light filling circuit 53 is gathered environment light source according to facial cmos image sensor are determined facial secondary light source luminance compensation value, control the luminous intensity light filling of facial PWM driving circuit 521 output pwm signals to facial secondary light source 52, make the facial light source parameters of carrying out the identification of face picture keep stable, the variation of minimizing system exposure parameter, make the exposure parameter relative fixed, with the speed of raising system extraction image, solve and when extraneous light is more weak, need improve the time shutter, slow and the not good problem of picture quality of images acquired.
The simulating signal comparer that facial dynamic adjustments light filling circuit 53 comprises photoelectric sensor, is connected with photoelectric sensor, convert the variation of light intensity, illuminance to electric signal by photoelectric sensor, control the luminous intensity light filling of facial PWM driving circuit 521 output pwm signals facial secondary light source 52 by simulating signal comparer output control signal.
Be equipped with high diffuser panel before the facial secondary light source 52, power on and promptly start working, under high diffuser panel effect, form even planar light source, during installation, projecting direction and people's face angle of facial secondary light source 52 are 42 °, adjustment by setting height(from bottom), make facial secondary light source 52 and people's face plane form suitable angle, cause facial cmos image sensor to be gathered less than the effective problem of face-image excessively by force because of the image local supersaturation with the effective solution person of wearing glasses lens surface reflection ray.
Facial electronic image acquisition means 51 is provided with the facial optical filter of combined type low pass arrowband 850nm, require selectivity to end light wave according to CMOS in proportion to the susceptibility of the light of different-waveband, the basic infrared light that only passes through the 850nm wavelength, make CMOS obtain evenly soft 850nm infrared light, the image of gathering is not subjected to the influence of high light, color, the colour of skin, complexion and woman's persona look, and at visible light more weak night, has the night vision performance, profile and feature that output image is just facial.
The facial optical filter of combined type low pass arrowband 850nm comprises infrared fileter and visible filter, is arranged on facial cmos image sensor rear or is embedded in the facial imaging lens.
Facial imaging lens is three aspherical lens, improves image quality comprehensively, makes the image of collection not yielding, and aberration, aberration and the curvature of field all reach high levels: aberration is 200 μ m to the maximum, and aberration is close to 0, and the curvature of field is 0.3% to the maximum.
Facial cmos image sensor is that 1/4inch optical dimensions, vertical definition are that 600 television lines (TVL), horizontal definition are the cmos image sensor that 800 television lines (TVL), resolution are at least 1,300,000 pixels.
Face data communication interface 54 is USB interface.
Iris image gathering system 4 comprises the iris electronic image acquisition means 42 that is provided with iris imaging camera lens and iris cmos image sensor, the iris secondary light source 41 that is provided with iris PWM driving circuit 411 and iris data communication interface 45, the iris imaging camera lens is connected with the iris cmos image sensor and is sequentially arranged on system's primary optical axis, and iris data communication interface 45 is connected with facial iris recognition arithmetic system 6.
Iris secondary light source 41 comprises 950nm infrared LED array 412, and noiseless mutually between the facial secondary light source 52, and the light filling effect is only arranged, human eye there is not any injury, the illumination main light source is the external environment light source, and iris secondary light source 41 is set at the automatic mode light filling during iris recognition.
Be provided with iris dynamic adjustments light filling circuit 44, iris dynamic adjustments light filling circuit 44 is connected with the iris PWM driving circuit 411 and the iris data communication interface 45 of iris electronic image acquisition means, iris secondary light source 41 respectively.Strength information and default parameter that iris dynamic adjustments light filling circuit 44 is gathered environment light source according to the iris cmos image sensor are determined iris secondary light source 41 luminance compensation values, control iris PWM driving circuit 411 output pwm signals are to the luminous intensity light filling of iris secondary light source 41, make the iris light source parameters of carrying out iris recognition keep stable, the variation of minimizing system exposure parameter, make the exposure parameter relative fixed, with the speed of raising system extraction image, solve and when extraneous light is more weak, need improve the time shutter, slow and the not good problem of picture quality of images acquired.
Iris dynamic adjustments light filling circuit 44 comprises light intensity illuminance testing circuit, the programmable logic device (PLD) that is connected with light intensity illuminance testing circuit, and light intensity illuminance testing circuit is connected with the infrared LED array 412 of iris secondary light source 41.Convert the variation of light intensity, illuminance to electric signal by light intensity illuminance testing circuit, by programmable logic device (PLD) output control signal, control iris PWM driving circuit 411 output pwm signals are to the luminous intensity light filling of iris secondary light source 41.
Be equipped with high diffuser panel before the iris secondary light source 41, power on and promptly start working, under high diffuser panel effect, form even planar light source, during installation, the projecting direction of iris secondary light source 41 and human eye angle are 13 °, pass through setting height(from bottom), make iris secondary light source 41 and people's eyes plane form suitable angle, cause the iris cmos image sensor to be gathered less than the effective problem of eye image excessively by force because of the image local supersaturation with the effective solution person of wearing glasses lens surface reflection ray.
Iris electronic image acquisition means 42 is provided with 950nm arrowband iris optical filter, is near infrared light by the 950nm wavelength only, and making the light source by CMOS is simple infrared light supply, and the image of collection is more clear reliable.
950nm arrowband iris optical filter is an infrared fileter, is arranged on iris imaging camera lens the place ahead.
The iris imaging camera lens is three aspherical lens, improves image quality comprehensively, makes the image of collection not yielding, and aberration, aberration and the curvature of field all reach high levels: aberration is 200 μ m to the maximum, and aberration is close to 0, and the curvature of field is 0.3% to the maximum.
The iris cmos image sensor is that 1/4inch optical dimensions, vertical definition are that 600 television lines (TVL), horizontal definition are the cmos image sensor that 800 television lines (TVL), resolution are at least 1,300,000 pixels.
Iris data communication interface 45 is USB interface.
Liquid crystal image display system 2 comprises LCD display and driving circuit thereof.
Human-computer interaction interface is the human-computer interaction interface that comprises keypad 3, pilot lamp 1 and intelligent voice prompt.Machine can be made corresponding voice suggestion and should how to be cooperated by the picker according to particular problem in the process of registration or identification, to improve the speed of gathering.
Facial iris recognition arithmetic system 6 adopts the master-slave mode based on dual-CPU architecture, comprises main control unit and connected from the control unit; When host CPU breaks down cisco unity malfunction, still can carry out necessary work from CPU, to improve the security of system.
Main control unit is the host CPU of 32 Embedded RISC chip cores of ARM company design, described host CPU connects LCD display, facial image acquisition system, iris image gathering system, real time clock circuit, switching on and shutting down and reset circuit, voice output circuit and Peripheral Interface respectively, is used to realize that iris and facial image acquisition, comparison, data communication, data storage show and output control.
From the control unit is the CMOS microcontroller with Flash sheet internal program storer, microcontroller as the subcontrol of system connect the keypad 3, pilot lamp 1, emergency cell, bell circuit, locking control signal output circuit, alarm output device of human-computer interaction interface respectively, based on the data-signal output circuit of Wiegand26 communications protocol, Ethernet interface and serial communication interface, be used for keyboard scan, data backup, emergent control, real-time clock, and finish the serial communication between AT89S52 and the host CPU.The Wiegand26 communications protocol is the standard agreement about access control that the sub-council of organization access control criterion formulates that is subordinate to by the U.S. industrial safety council (Security IndustryAssociation is abbreviated as SIA).When externally fed disconnected suddenly, emergency cell can be powered to machine immediately.Guarantee user's normal use.When host CPU breaks down cisco unity malfunction, will automatically reset from CPU, machine restarts, and to improve the security of system, recovers operate as normal.
The operation instruction of this embodiment is as follows:
Be set in earlier under the face recognition pattern and gather face-image, as long as height 150～185cm is stood in by the picker apart from 0.50～0.65 meter of facial image acquisition device, LCD display shows by picker's face-image, the bright dark degree prompting of the facial image that obtains according to device is adjusted decipherment distance by the picker again, facial image is bright, suitably moves backward; Facial image is dark, suitably move forward, until collecting near best face-image, after iris face recognition arithmetic system receives the data of face data communication interface, screen and handle, in information such as LCD display explicit user number, user's names, send voice suggestion " Thank you! simultaneously ";
Switch under the iris recognition pattern by button then and gather iris image, stood in 0.12～0.16 meter before the iris image acquiring device by the picker, eye gaze iris imaging camera lens is mapped in iris imaging camera lens surface with pupil, the prompting of the readability of the iris image that obtains according to device is adjusted identification posture and distance by the picker again, " sting " and keep posture and distance a moment according to sending voice suggestion, until collecting discernible best iris image, subsequent step is after iris face recognition arithmetic system receives the data of iris data communication interface, register and compare, send voice suggestion " Thank you! after comparing successfully ".
During actual the use, face recognition pattern and iris recognition pattern can combination in any be worked or work independently simultaneously.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design, make some alternative or obvious modification that are equal to; and performance or purposes are identical, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (10)
1. recognition device with face picture and iris capturing function, comprise facial image acquisition system, iris image gathering system, and the facial iris recognition arithmetic system that is connected respectively with facial image acquisition system, iris image gathering system, the liquid crystal image display system, human-computer interaction interface and the signal output apparatus that are connected respectively with facial iris recognition arithmetic system;
Described facial image acquisition system comprises the facial electronic image acquisition means that is provided with facial imaging lens and facial cmos image sensor, the facial secondary light source that is provided with facial PWM driving circuit and face data communication interface, described facial imaging lens is connected successively with facial cmos image sensor and is arranged on system's primary optical axis, and the face data communication interface is connected with facial iris recognition arithmetic system;
Described iris image gathering system comprises the iris electronic image acquisition means that is provided with iris imaging camera lens and iris cmos image sensor, the iris secondary light source that is provided with iris PWM driving circuit and iris data communication interface, described iris imaging camera lens is connected with the iris cmos image sensor and is sequentially arranged on system's primary optical axis, and the iris data communication interface is connected with facial iris recognition arithmetic system;
It is characterized in that:
Described facial secondary light source comprises the 850nm infrared LED array, and described facial secondary light source is set at the automatic mode light filling during face recognition;
Be provided with facial dynamic adjustments light filling circuit, described facial dynamic adjustments light filling circuit is connected with the facial PWM driving circuit and the face data communication interface of facial electronic image acquisition means, facial secondary light source respectively;
Described iris secondary light source comprises the 950nm infrared LED array, and described iris secondary light source is set at the automatic mode light filling during iris recognition;
Be provided with iris dynamic adjustments light filling circuit, described iris dynamic adjustments light filling circuit is connected with the iris PWM driving circuit and the iris data communication interface of iris electronic image acquisition means, iris secondary light source respectively.
2. the recognition device with face picture and iris capturing function as claimed in claim 1 is characterized in that:
Described facial dynamic adjustments light filling circuit comprises photoelectric sensor, the simulating signal comparer that is connected with described photoelectric sensor.
3. the recognition device with face picture and iris capturing function as claimed in claim 1 or 2 is characterized in that:
Described iris dynamic adjustments light filling circuit comprise light intensity illuminance testing circuit, with the programmable logic device (PLD) that described light intensity illuminance testing circuit is connected, described light intensity illuminance testing circuit is connected with the infrared LED array of described iris secondary light source.
4. the recognition device with face picture and iris capturing function as claimed in claim 3 is characterized in that:
Be equipped with high diffuser panel before the described facial secondary light source, the projecting direction of described facial secondary light source and people's face angle are 42 °.
5. the recognition device with face picture and iris capturing function as claimed in claim 4 is characterized in that:
Be equipped with high diffuser panel before the described iris secondary light source, the projecting direction of described iris secondary light source and human eye angle are 13 °.
6. the recognition device with face picture and iris capturing function as claimed in claim 5 is characterized in that:
Described facial electronic image acquisition means is provided with the facial optical filter of combined type low pass arrowband 850nm, the facial optical filter of described combined type low pass arrowband 850nm comprises infrared fileter and visible filter, is arranged on facial cmos image sensor rear or is embedded in the facial imaging lens;
Described iris electronic image acquisition means is provided with 950nm arrowband iris optical filter, and described 950nm arrowband iris optical filter is an infrared filtering, is arranged on iris imaging camera lens the place ahead.
7. the recognition device with face picture and iris capturing function as claimed in claim 6 is characterized in that:
Described facial iris recognition arithmetic system adopts the master-slave mode based on dual-CPU architecture, comprises main control unit and connected from the control unit;
Described main control unit is the host CPU of 32 Embedded RISC chip cores of ARM company design, and described host CPU connects LCD display, facial image acquisition system, iris image gathering system, real time clock circuit, switching on and shutting down and reset circuit, voice output circuit and Peripheral Interface respectively;
Described is the CMOS microcontroller with Flash sheet internal program storer from the control unit, described microcontroller as the subcontrol of system connect the keypad, pilot lamp, emergency cell, bell circuit, locking control signal output circuit, alarm output device of human-computer interaction interface respectively, based on data-signal output circuit, Ethernet interface and the serial communication interface of Wiegand26 communications protocol.
8. the recognition device with face picture and iris capturing function as claimed in claim 7 is characterized in that:
Described facial imaging lens and described iris imaging camera lens are three aspherical lens.
9. the recognition device with face picture and iris capturing function as claimed in claim 8 is characterized in that:
Described facial cmos image sensor and described iris cmos image sensor are that 1/4inch optical dimensions, vertical definition are that 600 television lines (TVL), horizontal definition are the cmos image sensor that 800 television lines (TVL), resolution are at least 1,300,000 pixels.
10. the recognition device with face picture and iris capturing function as claimed in claim 9 is characterized in that:
Described liquid crystal image display system comprises LCD display and driving circuit thereof;
Described human-computer interaction interface is the human-computer interaction interface that comprises keypad, pilot lamp and intelligent voice prompt;
Described face data communication interface and described iris data communication interface are USB interface.
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