CN108564075A - A kind of fingerprint image of four fingers acquisition method and device - Google Patents
A kind of fingerprint image of four fingers acquisition method and device Download PDFInfo
- Publication number
- CN108564075A CN108564075A CN201810693722.8A CN201810693722A CN108564075A CN 108564075 A CN108564075 A CN 108564075A CN 201810693722 A CN201810693722 A CN 201810693722A CN 108564075 A CN108564075 A CN 108564075A
- Authority
- CN
- China
- Prior art keywords
- ports
- module
- modules
- main control
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
- G06V40/1394—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger using acquisition arrangements
Abstract
A kind of fingerprint image of four fingers harvester of the present invention, is made of infrared light supply module, Collection prism, speculum, imaging lens, main control module, In vivo detection module and shell；Infrared light supply module is located at the underface of Collection prism；Speculum is located at the lower right of Collection prism；Imaging lens, main control module and speculum are arranged at same optical axis；Using In vivo detection module, solves the defect that previous product not can determine that living body finger print；The black white image for obtaining high quality on color cmos chip is realized using infrared light supply module, color cmos module, reduces product cost；Using CPLD modules, USB interface communication is realized, product cost is reduced.
Description
Technical field
The invention discloses a kind of fingerprint image of four fingers acquisition method and realization devices, belong to fingerprint acquisition device technology neck
Domain.
Background technology
In conventional four refer to fingerprint acquisition instrument, do not have live body four and refer to fingerprint identification function, can not differentiate that user uses
Be living body finger print；Use black and white CMOS electronic devices as sensor, display resolution in four conventional finger fingerprint acquisition instruments
It is low, expensive；Further, since the gathered data amount of fingerprint image of four fingers is big, it is double that market circulation product mostly uses FPGA cooperations
The connection scheme of piece SDR SDRAM or monolithic DDR SDRAM cause popularization that is of high cost, constraining four finger fingerprint acquisition instruments to make
With.
Invention content
The present invention provides a kind of fingerprint image of four fingers acquisition method and device, realize live body four refer to finger print collecting function,
The problem for product cost costliness of having been determined using color cmos modular manner, novel C PLD device degradations；Be conducive to four finger fingerprints to adopt
Collection instrument is promoted the use of.
A kind of fingerprint image of four fingers harvester of the present invention, technical solution are as follows：
By infrared light supply module, Collection prism, speculum, imaging lens, main control module, In vivo detection module, USB module,
CPLD modules, COMS modules, USB data line and shell composition；
The infrared light supply module is located at the underface of Collection prism；
The Collection prism is located at the upper right side of shell；
The speculum is located at the lower right of Collection prism；
Imaging lens, main control module and the speculum is arranged at same optical axis；
The USB data line is located at the lower right-hand side of shell；
The In vivo detection module is located at the surface of Collection prism；
The VCC output ends of the USB module respectively with main control module, CPLD modules, COMS modules, In vivo detection module, red
The feeder ear of outer light source module is electrically connected, and provides power supply signal；
The ports CLK of the main control module, the ports RST, the ports STAR, the ports EN respectively with the ports CLK of CPLD modules,
The ports RST, the ports STAR, the electrical connection of the ports EN provide clock signal, reset signal, commencing signal, enabled letter to CPLD modules
Number, control CPLD modules work；
The data port of the main control module is electrically connected with the data port of CPLD modules respectively, carries out data interaction, is completed
The transmission of picture signal；
The port SCL, SDA of the main control module is electrically connected with the port SCL, SDA of COMS modules respectively, transmits I2C data,
CMOS modules are configured, control COMS modules work；
The ports IO1 of the main control module are electrically connected with the ports IO1 of In vivo detection module, are received live body four and are referred to induction letter
Number, when having live body four to refer to signal, the ports IO1 of In vivo detection module export high level；
The I/O port of the main control module is electrically connected with the I/O port of infrared light supply module, and output infrared light supply controls signal,
Drive infrared source working；
The D+/D- USB ports of the main control module are electrically connected with the D+/D- USB ports of USB module, transmission USB communications association
Negotiation data；
The EXCLK clock ports of the CPLD modules, RST1 reseting ports, the ports HV Hang Chang, PCLK clock ports respectively with
The ports EXCLK, the ports RST1, the ports HV, the electrical connection of the ports PCLK and the COMS modules of COMS modules are extended clock letter
Number, reset signal, row field signal, clock signal interaction；
Port D [0..7] of the CPLD modules is electrically connected with the port the D of COMS modules [0..7] respectively, carries out data friendship
Mutually.
The present invention correctly identifies living body finger print signal by using In vivo detection identification module；It is adopted when live finger is close
When collecting prism, living body finger print identification module sends out high level；When no live finger is close to Collection prism, living body finger print identifies mould
Block sends out low level.
The course of work of the present invention：After the power is turned on, infrared LED light source igniting, user successively refers to left hand four device, the right hand four refers to
It is placed in collection surface and carries out Image Acquisition, after it is that live body four refers to that In vivo detection identification module, which determines, when collected fingerprint
Signal enters color cmos module by light path, is projected in main control module, main control module and CPLD module communications, configures CPLD moulds
Block operating mode；Then main control module by I2C interface to the window of color cmos module, acquisition starting point, time for exposure, gain
Etc. information carry out with postponing, CMOS modules are started to work；After the fingerprint image data of CPLD module transfer CMOS modules, passing through
The USB interface of main control module is transmitted to host computer；After completing image mosaic, adjustment, complete fingerprint image of four fingers is shown.
Good effect of the present invention is：
The present invention uses In vivo detection module, solves the defect that previous product not can determine that living body finger print；Using infrared light supply
Module, color cmos module realize the black white image that high quality is obtained on color cmos chip, reduce product cost；It adopts
With CPLD modules, USB interface communication is realized, product cost is reduced.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the electrical principle block diagram of the present invention.
Specific implementation mode
By following embodiment further illustrate description the present invention, do not limit the invention in any way, without departing substantially from
Under the premise of technical solution of the invention, easy to implement any of those of ordinary skill in the art made for the present invention changes
Dynamic or change is fallen within scope of the presently claimed invention.
Embodiment 1
As shown in Figure 1, a kind of fingerprint image of four fingers harvester of the present invention, mainly by shell 1, Collection prism 2, reflection
Mirror 3, imaging lens 4, USB data line 5, USB module U1, main control module U2, CPLD module U3, COMS module U4, In vivo detection
Module U5, infrared light supply module U6 compositions；Infrared light supply module U6 is located at the underface of Collection prism 2；Collection prism 2 is located at shell
The upper right side of body 1；Speculum 3 is located at the lower right of Collection prism 2；Imaging lens 4, main control module U2 and speculum 3 are at same
Optical axis arranges；USB data line 5 is located at the lower right-hand side of shell 1；In vivo detection module U5 is located at the surface of Collection prism 2；
As shown in Fig. 2, by USB module U1, main control module U2, CPLD module U3, COMS module U4, In vivo detection module U5, red
Outer light source module U6 composition control circuits；
The VCC output ends of the USB module U1 respectively with main control module U2, CPLD module U3, COMS module U4, In vivo detection
The feeder ear electrical connection of module U5, infrared light supply module U6, provide power supply signal；
The main control module U2 uses CY7C68013A chipsets；The ports CLK, the ports RST, the ends STAR of main control module U2
Mouth, the ports EN are electrically connected with the ports CLK of CPLD modules U3, the ports RST, the ports STAR, the ports EN respectively, to CPLD modules U3
Clock signal, reset signal, commencing signal, enable signal, the U3 work of control CPLD modules are provided；
PD [0..7] data port of the main control module U2 is electrically connected with the PD of main control module U3 [0..7] data port respectively
It connects, carries out data interaction, complete the transmission of picture signal；
The port SCL, SDA of the main control module U2 is electrically connected with the port SCL, SDA of COMS modules U4 respectively, transmits I2C
Data configure CMOS modules U2, the U4 work of control COMS modules；
The ports IO1 of the main control module U2 are electrically connected with the ports IO1 of In vivo detection module U5, are received live body four and are referred to induction
Signal, when having live body four to refer to signal, the ports IO1 of In vivo detection module U5 export high level；
The I/O port of the main control module U2 is electrically connected with the I/O port of infrared light supply module U6, output infrared light supply control letter
Number, drive infrared source working；
The D+/D- USB ports of the main control module U2 are electrically connected with the D+/D- USB ports of USB module U1, and transmission USB is logical
Interrogate agreement and data；
The CPLD modules U3 selects MAXIIEPM240T chipsets；EXCLK clock ports, the RST1 of CPLD modules U3 is multiple
Bit port, the ports HV Hang Chang, PCLK clock ports are electric with the ports EXCLK of U4, the ports RST1, the ports HV, the ports PCLK respectively
Connection and U4 modules are extended clock signal, reset signal, row field signal, clock signal interaction；The CPLD modules U3
The port D [0..7] be electrically connected respectively with the port the D of COMS modules U4 [0..7], carry out data interaction；
The In vivo detection identification module U5 selects JG100B chipsets；In vivo detection identification module U5 is located at collector ontology
Acquisition window at；When live finger is close to Collection prism, living body finger print identification module U5 sends out high level；When no live body hand
When referring to close to Collection prism, living body finger print identification module U5 sends out low level.
Claims (1)
1. a kind of fingerprint image of four fingers harvester, it is characterised in that：By infrared light supply module, Collection prism, speculum, imaging
Camera lens, main control module, In vivo detection module, USB module, CPLD modules, COMS modules, USB data line and shell composition；
The infrared light supply module is located at the underface of Collection prism；
The Collection prism is located at the upper right side of shell；
The speculum is located at the lower right of Collection prism；
Imaging lens, main control module and the speculum is arranged at same optical axis；
The USB data line is located at the lower right-hand side of shell；
The In vivo detection module is located at the surface of Collection prism；
The VCC output ends of the USB module respectively with main control module, CPLD modules, COMS modules, In vivo detection module, red
The feeder ear of outer light source module is electrically connected, and provides power supply signal；
The ports CLK of the main control module, the ports RST, the ports STAR, the ports EN respectively with the ports CLK of CPLD modules,
The ports RST, the ports STAR, the electrical connection of the ports EN provide clock signal, reset signal, commencing signal, enabled letter to CPLD modules
Number, control CPLD modules work；
The data port of the main control module is electrically connected with the data port of CPLD modules respectively, carries out data interaction, is completed
The transmission of picture signal；
The port SCL, SDA of the main control module is electrically connected with the port SCL, SDA of COMS modules respectively, transmits I2C data,
CMOS modules are configured, control COMS modules work；
The ports IO1 of the main control module are electrically connected with the ports IO1 of In vivo detection module, are received live body four and are referred to induction letter
Number, when having live body four to refer to signal, the ports IO1 of In vivo detection module export high level；
The I/O port of the main control module is electrically connected with the I/O port of infrared light supply module, and output infrared light supply controls signal,
Drive infrared source working；
The D+/D- USB ports of the main control module are electrically connected with the D+/D- USB ports of USB module, transmission USB communications association
Negotiation data；
The EXCLK clock ports of the CPLD modules, RST1 reseting ports, the ports HV Hang Chang, PCLK clock ports respectively with
The ports EXCLK, the ports RST1, the ports HV, the electrical connection of the ports PCLK and the COMS modules of COMS modules are extended clock letter
Number, reset signal, row field signal, clock signal interaction；
Port D [0..7] of the CPLD modules is electrically connected with the port the D of COMS modules [0..7] respectively, carries out data friendship
Mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693722.8A CN108564075A (en) | 2018-06-29 | 2018-06-29 | A kind of fingerprint image of four fingers acquisition method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693722.8A CN108564075A (en) | 2018-06-29 | 2018-06-29 | A kind of fingerprint image of four fingers acquisition method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108564075A true CN108564075A (en) | 2018-09-21 |
Family
ID=63554991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810693722.8A Pending CN108564075A (en) | 2018-06-29 | 2018-06-29 | A kind of fingerprint image of four fingers acquisition method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108564075A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529277A (en) * | 2003-10-16 | 2004-09-15 | 王立丰 | Optical fingerprint collecting instrument for automatic inducing living-finger |
| CN101604389A (en) * | 2009-07-17 | 2009-12-16 | 长春鸿达光电子与生物统计识别技术有限公司 | A kind of fingerprint image of four fingers acquisition method and device |
| US7953670B2 (en) * | 2006-12-27 | 2011-05-31 | Colella Brian A | Biometrically secured identification authentication and card reader device |
| CN107636686A (en) * | 2017-07-05 | 2018-01-26 | 深圳市汇顶科技股份有限公司 | Method, apparatus, chip and the terminal device of fingerprint collecting |
| CN107992847A (en) * | 2017-12-19 | 2018-05-04 | 长春鸿达光电子与生物统计识别技术有限公司 | It is a kind of that there is the fingerprint acquisition device of live finger detection |
-
2018
- 2018-06-29 CN CN201810693722.8A patent/CN108564075A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529277A (en) * | 2003-10-16 | 2004-09-15 | 王立丰 | Optical fingerprint collecting instrument for automatic inducing living-finger |
| US7953670B2 (en) * | 2006-12-27 | 2011-05-31 | Colella Brian A | Biometrically secured identification authentication and card reader device |
| CN101604389A (en) * | 2009-07-17 | 2009-12-16 | 长春鸿达光电子与生物统计识别技术有限公司 | A kind of fingerprint image of four fingers acquisition method and device |
| CN107636686A (en) * | 2017-07-05 | 2018-01-26 | 深圳市汇顶科技股份有限公司 | Method, apparatus, chip and the terminal device of fingerprint collecting |
| CN107992847A (en) * | 2017-12-19 | 2018-05-04 | 长春鸿达光电子与生物统计识别技术有限公司 | It is a kind of that there is the fingerprint acquisition device of live finger detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105095844B (en) | Binocular iris image data acquisition module and method | |
| CN101604389B (en) | Method and device for acquiring fingerprint image of four fingers | |
| CN102609694B (en) | Device for collecting fingerprints and veins | |
| CN101464947B (en) | Device for collecting bi-mode biology image based on fingerprint and finger vein | |
| CN205748663U (en) | A kind of Multifunction infrared thermal imagery instrument | |
| CN106295471A (en) | A kind of embedded bio characteristic information acquisition system based on DSP | |
| CN102364495A (en) | Small fingerprint acquirer | |
| CN101901087A (en) | Surface positioning device and method based on linear image sensors | |
| CN108564075A (en) | A kind of fingerprint image of four fingers acquisition method and device | |
| CN207612339U (en) | A kind of binocular iris image acquiring device | |
| CN102609692B (en) | Single finger print collecting device | |
| CN103324922A (en) | Non-contact self-guided palm vein image acquisition device | |
| CN208623773U (en) | A kind of USB camera mould group with sound transducer | |
| CN204636311U (en) | Medical near-infrared venae subcutaneae detects imager | |
| CN108898100A (en) | A kind of large area optical rolling fingerprint collecting method and device | |
| CN105426885A (en) | Multi-modal biological recognition device and image transmission method thereof | |
| CN105426849A (en) | Multi-modal biological recognition device and image acquisition method thereof | |
| CN108810429A (en) | A kind of linear ccd image acquisition system | |
| CN202512590U (en) | Fingerprint and vein collecting device | |
| CN207575140U (en) | A kind of microcirculation imaging device | |
| CN209000035U (en) | Single channel iris detection equipment | |
| CN207979654U (en) | Endoscope image pick-up device | |
| CN208353439U (en) | A kind of intelligent endoscope camera system | |
| CN209000036U (en) | A kind of double iris scanner camera boards that can acquire double iris biological characteristics simultaneously | |
| CN201477616U (en) | Double-lens fingerprint and palm print acquisition instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180921 |
|
| RJ01 | Rejection of invention patent application after publication |