CN105956528A - Man-machine interface system used for guiding and indicating mobile terminal iris identification - Google Patents
Man-machine interface system used for guiding and indicating mobile terminal iris identification Download PDFInfo
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- 238000004497 NIR spectroscopy Methods 0.000 claims description 7
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- 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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- 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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/197—Matching; Classification
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Abstract
The invention discloses a man-machine interface system used for guiding and indicating mobile terminal iris identification. The man-machine interface system comprises an iris identification near infrared imaging module, a visible light imaging module, a display screen, and a processor chip. The iris identification near infrared imaging module at least comprises a near infrared optical imaging lens, a near infrared optical band-pass optical filter, and a near infrared image imaging sensor. The visible light imaging module at least comprises a visible light optical imaging lens, a visible light optical band-pass optical filter, and a visible light image imaging sensor. The processor chip is connected with the iris identification near infrared imaging module, the visible light imaging module, and the display screen. The optical image acquisition area of the near infrared imaging module is covered by the optical image acquisition area of the visible light imaging module. The display screen is used to display visible light iris images adjusted by preset pixels, and the visible light iris images are acquired, because the preset pixels are adjusted by offset processing with respect to imaging image central positions and selecting processing of local area ROI pixels.
Description
Technical field
The present invention relates to field, bio-identification Light Electrical, especially a kind of for the knowledge of mobile terminal iris
Other guiding assignor's machine interface system and interface method.
Background technology
Mobile terminal includes that smart mobile phone, flat board, wearable device etc., present information technology move
From the point of view of dynamicization development trend, mobile terminal device is necessarily following is suitable for widest equipment.
At present, the mobile terminal in real world applications pays at mobile security, account safety logs in, net
The aspect that goes to bank uses the most extremely extensive, as precious in remaining sum (APP), wechat (APP),
The utilization of the aspects such as credit card management (APP), although during it uses, brings for life
Great convenience, but a kind of novel by security of mobile terminal can be weak etc. feature carry out
Economic crime is gradually risen.
And in mobile terminal, it is exactly Password Input that prior art carries out the customary means of identity validation,
But the means security performance of this identity validation very low, it is only necessary to implant on mobile terminals
Simple Virus, just can reveal this password, causes corresponding loss.In order to solve this
Problem, in the world or moves terminal security authentication by the mode of bio-identification；Such as Herba Marsileae Quadrifoliae
The fingerprint identification technology based on the exploitation of AuthenTec company that really company proposes, this Technology application exists
On mobile phone terminal, greatly improve the identity validation safety of mobile terminal；But, fingerprint skill
During art identification, owing to fingerprint is static, although there is uniqueness, but the most extremely hold
Easily it is acquired finger print information, is even imitated, so, along with fingerprint technique on mobile terminals
Utilization more and more extensive, its safety also can be the most on a declining curve, so, in safety
The more advantageous iris identification of aspect is to solve in mobile terminal safety authentication procedures very
Effective method, and iris authentication system is that in existing bio-identification safe active false proof feature is
For safety.
In current prior art, guide the man-machine interface system of instruction by gathering iris image
And show in display screen, with before and after instructing user to adjust and up and down position, but due to iris
Gathering image is monochromatic black white image, adds that near-infrared LED forms large area white in skin reflex
Region, iris low contrast brightness own, eventually for the image shown the most very
Unsightly, thus affect user psychology use sensation.Further, also can affect user to use
Experience and ease of use.
Accordingly, it would be desirable to realize a kind of man-machine interface guiding instruction for mobile terminal iris identification
System, it has high user's experience and ease of use, and attractive in appearance, high user psychology is comply with
Property guide instruction man-machine interface.
Summary of the invention
The present invention provides a kind of man-machine interface system guiding instruction for mobile terminal iris identification
System, described system includes: iris identification near infrared imaging module, visual light imaging module and display
Screen, wherein: iris identification described in the optical image acquisition region overlay of described visual light imaging module
The optical image acquisition region of near infrared imaging module；Described display screen shows to be adjusted through intended pixel
Whole visible ray iris image, described intended pixel is adjusted to through relative image center
Pixel bias and regional area ROI pixel selection process the visible ray iris image obtained.
Preferably, described iris identification near infrared imaging module at least includes: near-infrared spectroscopy
Lens, near infrared light optical bandpass filter and near-infrared image imaging sensor, for physics imaging
And export near-infrared iris image.
Preferably, described visual light imaging module at least includes: visible light optical imaging len, can
See light optical bandpass filter and visible images imaging sensor, can for physics imaging output
See light iris image.
Preferably, also including processor chips, wherein said processor chips connect described iris and know
Other near infrared imaging module, described visual light imaging module and described display screen, be respectively used to gather
With process described near-infrared iris image and described visible ray iris image, and aobvious described in feedback control
The guiding instruction man-machine interface of display screen display visible ray iris image.
Preferably, described iris identification near infrared imaging module and visual light imaging module parameter are by group
Conjunction is configured that
The EFLvis equivalence of the near-infrared spectroscopy lens of described iris identification near infrared imaging module
Focal length is more than the EFLnir equivalent focal length of the visible light optical imaging len of visual light imaging module.
Preferably, described iris identification near infrared imaging module and visual light imaging module parameter are by group
Close the list of the near-infrared image imaging sensor being configured that described iris identification near infrared imaging module
Position pixel physical size PSnir and horizontal direction X-axis pixel quantity PXnir product PSnir*PXnir
The unit picture element physical size PSvis of image imaging sensor and water less than visual light imaging module
Square to pixel quantity PXvis product PSvis*PXvis；That is, PSnir*PXnir ＜ PSvis*PXvis.
Preferably, described iris identification near infrared imaging module and visual light imaging module parameter are by group
Close the unit picture element of the image imaging sensor being configured that described iris identification near infrared imaging module
Physical size PSnir and vertical direction Y-axis pixel quantity PYnir product PSnir*PYnir is less than can
See unit picture element physical size PSvis and and the Vertical Square of the image imaging sensor of photoimaging module
To pixel quantity PYvis product PSvis*PYvis；That is, PSnir*PYnir ＜ PSvis*PYvis.
Preferably, described relative image center pixel bias processes and specifically includes:
The relative image center pixel that display screen shows is through X-Y coordinate axial displacement amount picture
Element biasing adjusts (X_SHIFT, Y_SHIFT), and described biasing adjusts (X_SHIFT, Y_SHIFT) root
Map according to physical optics between described near infrared imaging module and visual light imaging module and determine.
Preferably, described biasing adjusts the calculating of X-Y axial displacement amount (X_SHIFT, Y_SHIFT)
As follows:
X_SHIFT=β vis* (Xnir Xvis)/PSvis
Y_SHIFT=β vis* (Ynir Yvis)/PSvis
β vis=EFLvis/ (D-EFLvis)
Wherein:
(X_SHIFT, Y_SHIFT) is respectively relative image the center X, Y that display screen shows
Coordinate axes displacement, unit picture element, pixel；
(Xnir, Ynir) is respectively the optical center X, Y of iris identification near infrared imaging module and sits
Parameter physical location, unit centimetre, cm；
(Xvis, Yvis) is respectively the optical center X of visual light imaging module, Y coordinate axle physics
Position, unit centimetre, cm；
β vis is visual light imaging module optical magnification, without unit；
EFLvis is the equivalent focal length of visual light imaging module optical imaging lens, unit millimeter, mm；
D is optical imagery object distance, unit centimetre, cm；；
PSvis is the unit picture element physical size of visual light imaging module image imaging sensor, unit
The every pixel of micron, um/pixel.
Preferably, described relative image regional area ROI pixel selection processes and specifically includes:
Relative image regional area ROI pixel selection that display screen shows adjust (X_ROI,
Y_ROI) map according to physical optics between described near infrared imaging module and visual light imaging module
Determine.
Preferably, described selection regional area amount (X_ROI, Y_ROI) is calculated as follows:
X_ROI=β vis*PSnir*PXnir/ (β nir*PSvis)
Y_ROI=β vis*PSnir*PYnir/ (β nir*PSvis)
β vis=EFLvis/ (D-EFLvis)
β nir=EFLnir/ (D-EFLnir)
Wherein:
(X_ROI, Y_ROI) is respectively the relative image regional area ROI that display screen shows,
Unit picture element, pixel；
PXnir, PYnir are respectively the horizontal direction X-axis of iris identification near infrared imaging module with vertical
Direction Y-axis pixel quantity, unit picture element, pixel；
β nir is the optical magnification of iris identification near infrared imaging module, without unit；
β vis is the optical magnification of visual light imaging module, without unit；
EFLnir is the equivalent focal length of the optical imaging lens of iris identification near infrared imaging module, single
Position millimeter, mm；
EFLvis is the equivalent focal length of the optical imaging lens of visual light imaging module, unit millimeter,
mm；
D is imaging object distance, unit centimetre, cm；
PSnir is the unit picture element thing of the image imaging sensor of iris identification near infrared imaging module
Reason yardstick, the every pixel of unit micron, um/pixel；
PSvis is the unit picture element physical size of the image imaging sensor of visual light imaging module, single
The position every pixel of micron, um/pixel.
Preferably, the optical image acquisition region of described visual light imaging module is known more than described iris
The optical image acquisition region of other near infrared imaging module.
According to a further aspect in the invention, it is provided that a kind of guiding for mobile terminal iris identification
The man-machine interface method of instruction, described mobile terminal includes iris identification near infrared imaging module and can
See photoimaging module, described in the optical image acquisition region overlay of wherein said visual light imaging module
The optical image acquisition region of iris identification near infrared imaging module, described method comprises the steps:
A) gather and physics imaging, output near-infrared iris image are for processing further；
B) gather and physics imaging, output visible ray iris image are for processing further；
C) the visible ray iris image that display adjusts through intended pixel, described intended pixel is adjusted to
Process through relative image center pixel bias and regional area ROI pixel selection.
Preferably, described iris identification near infrared imaging module at least includes: near-infrared spectroscopy
Lens, near infrared light optical bandpass filter and near-infrared image imaging sensor, for physics imaging
And export near-infrared iris image.
Preferably, described visual light imaging module at least includes: visible light optical imaging len, can
See light optical bandpass filter and visible images imaging sensor, can for physics imaging output
See light iris image.
Preferably, described mobile terminal also includes processor chips, and wherein said processor chips are even
Connect described iris identification near infrared imaging module, described visual light imaging module and display screen, respectively
For gathering and process described near-infrared iris image and described visible ray iris image, and feed back control
Make the guiding instruction man-machine interface of described display screen display visible ray iris image.
Preferably, described iris identification near infrared imaging module and visual light imaging module parameter are by group
Conjunction is configured that
The EFLvis equivalence of the near-infrared spectroscopy lens of described iris identification near infrared imaging module
Focal length is more than the EFLnir equivalent focal length of the visible light optical imaging len of visual light imaging module.
Preferably, described iris identification near infrared imaging module and visual light imaging module parameter are by group
Close the list of the near-infrared image imaging sensor being configured that described iris identification near infrared imaging module
Position pixel physical size PSnir and horizontal direction X-axis pixel quantity PXnir product PSnir*PXnir
The unit picture element physical size PSvis of image imaging sensor and water less than visual light imaging module
Square to pixel quantity PXvis product PSvis*PXvis；That is, PSnir*PXnir ＜ PSvis*PXvis.
Preferably, described iris identification near infrared imaging module and visual light imaging module parameter are by group
Close the unit picture element of the image imaging sensor being configured that described iris identification near infrared imaging module
Physical size PSnir and vertical direction Y-axis pixel quantity PYnir product PSnir*PYnir is less than can
See unit picture element physical size PSvis and and the Vertical Square of the image imaging sensor of photoimaging module
To pixel quantity PYvis product PSvis*PYvis；That is, PSnir*PYnir ＜ PSvis*PYvis.
Preferably, described relative image center pixel bias processes and specifically includes:
The relative image center pixel of display is through X-Y coordinate axial displacement amount pixel bias
Adjusting (X_SHIFT, Y_SHIFT), described biasing adjusts (X_SHIFT, Y_SHIFT) according to described
Between near infrared imaging module and visual light imaging module, physical optics maps and determines.
Preferably, described biasing adjusts the calculating of X-Y axial displacement amount (X_SHIFT, Y_SHIFT)
As follows:
X_SHIFT=β vis* (Xnir Xvis)/PSvis
Y_SHIFT=β vis* (Ynir Yvis)/PSvis
β vis=EFLvis/ (D-EFLvis)
Wherein:
(X_SHIFT, Y_SHIFT) is respectively relative image the center X, Y that display screen shows
Coordinate axes displacement, unit picture element, pixel；
(Xnir, Ynir) is respectively the optical center X, Y of iris identification near infrared imaging module and sits
Parameter physical location, unit centimetre, cm；
(Xvis, Yvis) is respectively the optical center X of visual light imaging module, Y coordinate axle physics
Position, unit centimetre, cm；
β vis is visual light imaging module optical magnification, without unit；
EFLvis is the equivalent focal length of visual light imaging module optical imaging lens, unit millimeter, mm；
D is optical imagery object distance, unit centimetre, cm；；
PSvis is the unit picture element physical size of visual light imaging module image imaging sensor, unit
The every pixel of micron, um/pixel.
Preferably, described relative image regional area ROI pixel selection processes and specifically includes:
The relative image regional area ROI pixel selection of display adjusts (X_ROI, Y_ROI) root
Map according to physical optics between described near infrared imaging module and visual light imaging module and determine.
Preferably, described selection regional area amount (X_ROI, Y_ROI) is calculated as follows:
X_ROI=β vis*PSnir*PXnir/ (β nir*PSvis)
Y_ROI=β vis*PSnir*PYnir/ (β nir*PSvis)
β vis=EFLvis/ (D-EFLvis)
β nir=EFLnir/ (D-EFLnir)
Wherein:
(X_ROI, Y_ROI) is respectively the relative image regional area ROI that display screen shows,
Unit picture element, pixel；
PXnir, PYnir are respectively the horizontal direction X-axis of iris identification near infrared imaging module with vertical
Direction Y-axis pixel quantity, unit picture element, pixel；
β nir is the optical magnification of iris identification near infrared imaging module, without unit；
β vis is the optical magnification of visual light imaging module, without unit；
EFLnir is the equivalent focal length of the optical imaging lens of iris identification near infrared imaging module, single
Position millimeter, mm；
EFLvis is the equivalent focal length of the optical imaging lens of visual light imaging module, unit millimeter,
mm；
D is imaging object distance, unit centimetre, cm；
PSnir is the unit picture element thing of the image imaging sensor of iris identification near infrared imaging module
Reason yardstick, the every pixel of unit micron, um/pixel；
PSvis is the unit picture element physical size of the image imaging sensor of visual light imaging module, single
The position every pixel of micron, um/pixel.
Preferably, the optical image acquisition region of described visual light imaging module is known more than described iris
The optical image acquisition region of other near infrared imaging module.
It is in place of the great advantage of the system arrangements and methods that the present invention uses, although iris identification
Near infrared imaging module imaging object distance in field depth can change image scope can be caused to change
Become, but at the visible ray rainbow that above-mentioned visual light imaging module gathers and display adjusts through intended pixel
Film image has identical image range and changes, image range and actual rainbow during to keep guiding display
The image range of film identification near infrared imaging module imaging is consistent, it is to avoid both discordances cause
Image guides instruction mistake.
Described display screen is used for showing that instruction user uses OK range such as distance, on position
Lower left and right, and direct reflection position adjustment when using status information such as to wear glasses, instruction identifies successfully
The character image information such as failure.
Summing up foregoing description, the guiding for mobile terminal iris identification that achieves of the present invention indicates
The effect of man-machine interface:
Mobile terminal iris identification provides effective man-machine interface to guide instruction to improve knowledge when user uses
Other speed and discrimination, further improve user's experience and ease of use.And it is visible
The visible ray iris image that photoimaging module collection and display adjust through intended pixel has identical
Image range changes, image range and actual iris identification near infrared imaging during to keep guiding display
The image range of module imaging is consistent, it is to avoid the image that both discordances cause guides instruction mistake.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the system of the man-machine interface according to the present invention.
Detailed description of the invention
The present invention implements a kind of man-machine interface guiding instruction for mobile terminal iris identification
System, it has high user's experience and ease of use, and attractive in appearance, high user psychology is comply with
Property guide instruction man-machine interface.
As it is shown in figure 1, according to the people guiding instruction for mobile terminal iris identification of the present invention
The system 100 of machine interface includes iris identification near infrared imaging module 101, visual light imaging module
102, display screen 103 and processor chips 104；Wherein, near infrared imaging module 101, visible
Photoimaging module 102 and processor chips 104 are all built in inside mobile terminal, it is seen that light becomes
As module 102 is for obtaining iris and the visible images of face background, near infrared imaging module
101, for obtaining the near-infrared iris image of human eye, enable to show by the method for designing of the present invention
Display screen 103 display includes the visible images of iris information.
As it is shown in figure 1, described iris identification near infrared imaging module 101 at least includes: near infrared light
Learning imaging len, near infrared light optical bandpass filter and near-infrared image imaging sensor, for thing
Reason imaging also exports near-infrared iris image；
Described visual light imaging module 102 at least includes: visible light optical imaging len, it is seen that light light
Optical bandpass filter and visible images imaging sensor, for physics imaging and export visible ray rainbow
Film image；
The optical image acquisition region 105 of described visual light imaging module 102 covers described iris and knows
The optical image acquisition region 106 of other near infrared imaging module 101, thus realize utilization and collected
Iris image information show the visible images including iris information.According to the present invention one
Embodiment, it is preferable that the optical image acquisition region 105 of described visual light imaging module 102 can
With the optical image acquisition region 106 more than described iris identification near infrared imaging module 101.
According to one embodiment of present invention, described iris identification near infrared imaging module 101 and can
See that photoimaging module 102 parameter is combined to be configured that
The EFLvis of the near-infrared spectroscopy lens of described iris identification near infrared imaging module 101
Equivalent focal length is more than the EFLnir equivalence of the visible light optical imaging len of visual light imaging module 102
Focal length.
According to another embodiment of the invention, described iris identification near infrared imaging module 101 is near
The unit picture element physical size PSnir of infrared image imaging sensor and horizontal direction X-axis pixel quantity
PXnir product PSnir*PXnir is less than the unit of the image imaging sensor of visual light imaging module 102
Pixel physical size PSvis and horizontal direction pixel quantity PXvis product PSvis*PXvis；That is,
PSnir*PXnir ＜ PSvis*PXvis.
According to another embodiment of the invention, the figure of described iris identification near infrared imaging module 101
As the unit picture element physical size PSnir and vertical direction Y-axis pixel quantity PYnir of imaging sensor take advantage of
Long-pending PSnir*PYnir is less than the unit picture element thing of the image imaging sensor of visual light imaging module 102
Reason yardstick PSvis and with vertical direction pixel count amount PYvis product PSvis*PYvis；That is,
PSnir*PYnir ＜ PSvis*PYvis.
Described guiding instruction man-machine interface is configured to: visual light imaging module gathers and display warp
Cross the visible ray iris image that intended pixel adjusts.
Described processor chips 104 connect described iris identification near infrared imaging module 101, described can
See photoimaging module 102 and described display screen 103, be respectively used to gather and process described near-infrared rainbow
Film image and described visible ray iris image, and described in feedback control, display screen 103 shows visible ray rainbow
The guiding instruction man-machine interface of film image；
Gather near-infrared iris image and further carry out iris identification for processor chips, gather
Visible ray iris image further carries out feedback control display screen for processor chips and shows visible
Light iris image.
Wherein:
Described display screen 103 shows through the visible ray iris image that intended pixel adjusts, described pre-
Fixation element is adjusted to through relative image center pixel bias and regional area ROI pixel
Selection processes the visible ray iris image obtained.
According to one embodiment of present invention, described display screen 103 further can be used for display and refers to
Showing that user uses OK range such as distance, position up and down, and uses status information such as to wear
Direct reflection position adjustment during glasses, instruction identifies the character image information that the most unsuccessfully waits.
According to one embodiment of present invention, at the pixel bias of described relative image center
Reason specifically includes the relative image center pixel shown by display screen 103 through X-Y coordinate
Axial displacement amount pixel bias adjusts (X_SHIFT, Y_SHIFT), described biasing adjustment (X_SHIFT,
Y_SHIFT) map according to physical optics between described near infrared imaging module and visual light imaging module
Determine.
Specifically, according to one embodiment of present invention, described relative image center picture
Element bias treatment specifically includes:
The relative image center pixel of display screen 103 display is through X-Y coordinate axial displacement
Amount pixel bias adjusts (X_SHIFT, Y_SHIFT), such as the A point in Fig. 1, after A point is for adjustment
Center.Described biasing adjusts (X_SHIFT, Y_SHIFT) according to described near infrared imaging mould
Between group 101 and visual light imaging module 102, physical optics maps and determines.
Wherein, described biasing adjusts the calculating of X-Y axial displacement amount (X_SHIFT, Y_SHIFT) such as
Under:
X_SHIFT=β vis* (Xnir Xvis)/PSvis
Y_SHIFT=β vis* (Ynir Yvis)/PSvis
β vis=EFLvis/ (D-EFLvis)
Wherein:
(X_SHIFT, Y_SHIFT) is respectively relative image the center X, Y that display screen shows
Coordinate axes displacement, unit picture element, pixel；
(Xnir, Ynir) is respectively the optical center X, Y of iris identification near infrared imaging module 101
Coordinate axes physical location, such as C point, unit centimetre, cm in figure；
(Xvis, Yvis) is respectively the optical center X of visual light imaging module 102, Y coordinate axle thing
Reason position, such as B point, unit centimetre, cm in figure；
Wherein, in the optics of iris identification near infrared imaging module 101 and visual light imaging module 102
The X of the heart, Y coordinate axle physical location scope is as far as possible close to effect of optimization.
β vis is visual light imaging module 102 optical magnification, without unit；
EFLvis is the equivalent focal length of visual light imaging module optical imaging lens, unit millimeter, mm；
D is optical imagery object distance, unit centimetre, cm；；
PSvis is the unit picture element physical size of visual light imaging module image imaging sensor, unit
The every pixel of micron, um/pixel.
Such as, as a example by actual mobile phone is applied, design parameter is as follows:
EFLvis=2mm, D=30cm, PSvis=1.12um/pixel,
(Xnir Xvis)=3cm；
(Ynir Yvis)=1cm；
β vis=0.00675；
(X_SHIFT, Y_SHIFT)=(180pixels, 60pixels)；
The relative image center pixel that i.e. display screen shows is through X-Y coordinate axial displacement amount
Pixel bias is adjusted to 180 pixels and 60 pixels.
According to one embodiment of present invention, described relative image regional area ROI pixel choosing
Select process to specifically include:
Relative image regional area ROI 107 pixel selection of display screen 103 display adjusts
(X_ROI, Y_ROI) is according between described near infrared imaging module 101 and visual light imaging module 102
Physical optics maps and determines.By near infrared imaging module 101 and visual light imaging module 102
Between physical optics map, so that above-mentioned visual light imaging module gathers and display is through predetermined
The visible ray iris image that pixel adjusts has identical image range and changes, to keep guiding display
Time image range consistent with the image range of actual iris identification near infrared imaging module imaging, it is to avoid
The image that both discordances cause guides instruction mistake.
Specifically, according to one embodiment of present invention, described selection regional area amount (X_ROI,
Y_ROI) computational methods step is as follows:
X_ROI=β vis*PSnir*PXnir/ (β nir*PSvis)
Y_ROI=β vis*PSnir*PYnir/ (β nir*PSvis)
β vis=EFLvis/ (D-EFLvis)
β nir=EFLnir/ (D-EFLnir)
Wherein:
(X_ROI, Y_ROI) is respectively the relative image regional area that display screen shows
ROI107, unit picture element, pixel；
PXnir, PYnir are respectively the horizontal direction X-axis of iris identification near infrared imaging module with vertical
Direction Y-axis pixel quantity, unit picture element, pixel；
β nir is the optical magnification of iris identification near infrared imaging module, without unit；
β vis is the optical magnification of visual light imaging module, without unit；
EFLnir is the equivalent focal length of the optical imaging lens of iris identification near infrared imaging module, single
Position millimeter, mm；
EFLvis is the equivalent focal length of the optical imaging lens of visual light imaging module, unit millimeter,
mm；
D is imaging object distance, unit centimetre, cm；
PSnir is the unit picture element thing of the image imaging sensor of iris identification near infrared imaging module
Reason yardstick, the every pixel of unit micron, um/pixel；
PSvis is the unit picture element physical size of the image imaging sensor of visual light imaging module, single
The position every pixel of micron, um/pixel.
As a example by actual mobile phone is applied, design parameter is as follows:
EFLvis=2mm, EFLnir=4mm, D=30cm, PXnir=1920pixels,
PYnir=1080pixels, PSnir=PSvis=1.12um/pixels
β nir=0.0135；
β vis=0.0067；
(X_ROI, Y_ROI)=(960pixels, 540pixels)；
That is, the relative image regional area ROI pixel that display screen shows is adjusted to through selection
960 pixels and 540 pixels.According to another aspect of the present invention, it is provided that a kind of for mobile whole
The man-machine interface method guiding instruction of end iris identification, described mobile terminal includes that iris identification is near
Infrared imaging module, visual light imaging module, display screen and processor chips, described method includes
Following steps:
A) gather and physics imaging, output near-infrared iris image are for processing further；
Specifically, it is possible to use at least include near-infrared spectroscopy lens, near-infrared optical band leads to
The iris identification near infrared imaging module of optical filter and near-infrared image imaging sensor realizes physics
Imaging also exports near-infrared iris image, then exports to processor chips and is further processed；
B) gather and physics imaging, output visible ray iris image are for processing further；
Specifically, it is possible to use at least include visible light optical imaging len, it is seen that light optical band pass
The visual light imaging module of optical filter and visible images imaging sensor realizes physics imaging defeated
Go out visible ray iris image, then export to processor chips and be further processed；
Iris identification near-infrared described in the optical image acquisition region overlay of described visual light imaging module
The optical image acquisition region of imaging modules；
C) the visible ray iris image that display adjusts through intended pixel, described intended pixel is adjusted to
Process through relative image center pixel bias and regional area ROI pixel selection.
Specifically, the pixel method of adjustment in above-described embodiment can be taked to show through pre-fixation
The visible ray iris image that element adjusts.
It is in place of the advantage of the system arrangements and methods that the present invention uses, mobile terminal iris identification
There is provided when user uses effective man-machine interface to guide instruction to improve recognition speed and discrimination, more enter
One step improves user's experience and ease of use.Although iris identification near infrared imaging module exists
In field depth, imaging object distance can change image scope can be caused to change, but at above-mentioned visible ray
The visible ray iris image that imaging modules collection and display adjust through intended pixel has identical figure
As scope changes, image range and actual iris identification near infrared imaging mould during to keep guiding display
The image range of composition picture is consistent, it is to avoid the image that both discordances cause guides instruction mistake.
The present invention describe detailed description of the invention content and technical characteristic, can identical or etc. in like manner
Being carried out in the range of solution, such as range, device replacement also should be understood by equivalent.
Finally, in addition it is also necessary to be only that several of the present invention are embodied as it is noted that listed above
Example.It is clear that the invention is not restricted to above example, it is also possible to there are many deformation.This area general
All deformation that logical technical staff can directly derive from present disclosure or associate, all should
It is considered protection scope of the present invention.
Claims (10)
1. for the man-machine interface system guiding instruction of mobile terminal iris identification, described system
System includes: iris identification near infrared imaging module, visual light imaging module and display screen, wherein:
Iris identification near-infrared described in the optical image acquisition region overlay of described visual light imaging module
The optical image acquisition region of imaging modules；
Described display screen shows through the visible ray iris image that intended pixel adjusts, described pre-fixation
Element is adjusted to through relative image center pixel bias and regional area ROI pixel selection
Process the visible ray iris image obtained.
2. man-machine interface system as claimed in claim 1, wherein: described iris identification near-infrared becomes
As module at least includes: near-infrared spectroscopy lens, near infrared light optical bandpass filter and the reddest
Outer image imaging sensor, for physics imaging and export near-infrared iris image.
3. man-machine interface system as claimed in claim 1 or 2, wherein: described visual light imaging mould
Group at least includes: visible light optical imaging len, it is seen that light optical bandpass filter and visible ray figure
As imaging sensor, for physics imaging and export visible ray iris image.
4. man-machine interface system as claimed in claim 3, wherein: described iris identification near-infrared
Imaging modules is combined with visual light imaging module parameter and is configured that described iris identification near-infrared becomes
The unit picture element physical size PSnir of the near-infrared image imaging sensor of picture module and horizontal direction X
Axle pixel quantity PXnir product PSnir*PXnir is less than the image imaging sensing of visual light imaging module
The unit picture element physical size PSvis of device and horizontal direction pixel quantity PXvis product
PSvis*PXvis；That is, PSnir*PXnir ＜ PSvis*PXvis.
5. man-machine interface system as claimed in claim 3, wherein: described iris identification near-infrared
Imaging modules is combined with visual light imaging module parameter and is configured that described iris identification near-infrared becomes
The unit picture element physical size PSnir of the image imaging sensor of picture module and vertical direction Y-axis picture
Prime number amount PYnir product PSnir*PYnir is less than the image imaging sensor of visual light imaging module
Unit picture element physical size PSvis and with vertical direction pixel count amount PYvis product PSvis*PYvis；
That is, PSnir*PYnir ＜ PSvis*PYvis.
6. man-machine interface system as claimed in claim 1, wherein: in described relative image
Heart position pixel bias processes and specifically includes:
The relative image center pixel that display screen shows is through X-Y coordinate axial displacement amount picture
Element biasing adjusts (X_SHIFT, Y_SHIFT), and described biasing adjusts (X_SHIFT, Y_SHIFT) root
Map according to physical optics between described near infrared imaging module and visual light imaging module and determine.
7. man-machine interface system as claimed in claim 6, wherein: described biasing adjusts X-Y axle
Displacement (X_SHIFT, Y_SHIFT) is calculated as follows:
X_SHIFT=β vis* (Xnir Xvis)/PSvis
Y_SHIFT=β vis* (Ynir Yvis)/PSvis
β vis=EFLvis/ (D-EFLvis)
Wherein:
(X_SHIFT, Y_SHIFT) is respectively relative image the center X, Y that display screen shows
Coordinate axes displacement, unit picture element, pixel；
(Xnir, Ynir) is respectively the optical center X, Y of iris identification near infrared imaging module and sits
Parameter physical location, unit centimetre, cm；
(Xvis, Yvis) is respectively the optical center X of visual light imaging module, Y coordinate axle physics
Position, unit centimetre, cm；
β vis is visual light imaging module optical magnification, without unit；
EFLvis is the equivalent focal length of visual light imaging module optical imaging lens, unit millimeter, mm；
D is optical imagery object distance, unit centimetre, cm；；
PSvis is the unit picture element physical size of visual light imaging module image imaging sensor, unit
The every pixel of micron, um/pixel.
8. man-machine interface system as claimed in claim 1, wherein: described relative image office
Region, portion ROI pixel selection processes and specifically includes:
Relative image regional area ROI pixel selection that display screen shows adjust (X_ROI,
Y_ROI) map according to physical optics between described near infrared imaging module and visual light imaging module
Determine.
9. man-machine interface system as claimed in claim 8, wherein: described selection regional area
Being calculated as follows of amount (X_ROI, Y_ROI):
X_ROI=β vis*PSnir*PXnir/ (β nir*PSvis)
Y_ROI=β vis*PSnir*PYnir/ (β nir*PSvis)
β vis=EFLvis/ (D-EFLvis)
β nir=EFLnir/ (D-EFLnir)
Wherein:
(X_ROI, Y_ROI) is respectively the relative image regional area ROI that display screen shows,
Unit picture element, pixel；
PXnir, PYnir are respectively the horizontal direction X-axis of iris identification near infrared imaging module with vertical
Direction Y-axis pixel quantity, unit picture element, pixel；
β nir is the optical magnification of iris identification near infrared imaging module, without unit；
β vis is the optical magnification of visual light imaging module, without unit；
EFLnir is the equivalent focal length of the optical imaging lens of iris identification near infrared imaging module, single
Position millimeter, mm；
EFLvis is the equivalent focal length of the optical imaging lens of visual light imaging module, unit millimeter,
mm；
D is imaging object distance, unit centimetre, cm；
PSnir is the unit picture element thing of the image imaging sensor of iris identification near infrared imaging module
Reason yardstick, the every pixel of unit micron, um/pixel；
PSvis is the unit picture element physical size of the image imaging sensor of visual light imaging module, single
The position every pixel of micron, um/pixel.
10. for the man-machine interface method guiding instruction of mobile terminal iris identification, described
Mobile terminal includes iris identification near infrared imaging module and visual light imaging module, wherein said can
See iris identification near infrared imaging module described in the optical image acquisition region overlay of photoimaging module
Optical image acquisition region, described method comprises the steps:
A) gather and physics imaging, output near-infrared iris image are for processing further；
B) gather and physics imaging, output visible ray iris image are for processing further；
C) the visible ray iris image that display adjusts through intended pixel, described intended pixel is adjusted to
Process through relative image center pixel bias and regional area ROI pixel selection.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260196.7A CN105956528A (en) | 2016-04-22 | 2016-04-22 | Man-machine interface system used for guiding and indicating mobile terminal iris identification |
| CN201610971505.1A CN106527706B (en) | 2016-04-22 | 2016-04-22 | Guidance for mobile terminal iris recognition indicates man-machine interface system and method |
| CN201610965133.1A CN106503680B (en) | 2016-04-22 | 2016-11-04 | Guidance for mobile terminal iris recognition indicates man-machine interface system and method |
| US16/314,097 US10819894B2 (en) | 2016-04-22 | 2017-04-24 | Human machine interface system and method of providing guidance and instruction for iris recognition on mobile terminal |
| PCT/CN2017/081690 WO2017182004A1 (en) | 2016-04-22 | 2017-04-24 | Human machine interface system and method of providing guidance and instruction for iris recognition on mobile terminal |
| PH12018502238A PH12018502238A1 (en) | 2016-04-22 | 2018-10-19 | Human machine interface system and method of providing guidance and instruction for iris recognition on mobile terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106407964A (en) * | 2016-11-15 | 2017-02-15 | 刘霁中 | Device and method using visible light source to collect iris and terminal device |
| CN106603940A (en) * | 2016-12-29 | 2017-04-26 | 上海集成电路研发中心有限公司 | Global pixel iris identification image sensor |
| WO2017182004A1 (en) * | 2016-04-22 | 2017-10-26 | 苏州思源科安信息技术有限公司 | Human machine interface system and method of providing guidance and instruction for iris recognition on mobile terminal |
| CN113411477A (en) * | 2021-06-10 | 2021-09-17 | 支付宝(杭州)信息技术有限公司 | Image acquisition method, device and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105956528A (en) * | 2016-04-22 | 2016-09-21 | 沈洪泉 | Man-machine interface system used for guiding and indicating mobile terminal iris identification |
| CN108734063A (en) * | 2017-04-20 | 2018-11-02 | 上海耕岩智能科技有限公司 | A kind of method and apparatus of iris recognition |
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| CN105303155B (en) * | 2014-06-03 | 2019-11-15 | 虹膜识别系统公司 | Iris identification equipment and its operating method |
| CN104394311B (en) * | 2014-09-15 | 2015-08-05 | 贵阳科安科技有限公司 | For iris recognition imaging modules and the image acquiring method of mobile terminal |
| CN104199553B (en) * | 2014-09-15 | 2016-01-27 | 苏州思源科安信息技术有限公司 | For guiding instruction human-computer interface device and the method for mobile terminal iris recognition |
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| CN104850842B (en) * | 2015-05-21 | 2018-05-18 | 北京中科虹霸科技有限公司 | The man-machine interaction method of mobile terminal iris recognition |
| CN205068435U (en) * | 2015-09-18 | 2016-03-02 | 惠州比亚迪实业有限公司 | Camera subassembly and have its mobile device |
| CN105467490A (en) * | 2015-12-28 | 2016-04-06 | 北京天诚盛业科技有限公司 | Optical filtering module, imaging device and mobile terminal |
| CN105956528A (en) * | 2016-04-22 | 2016-09-21 | 沈洪泉 | Man-machine interface system used for guiding and indicating mobile terminal iris identification |
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2016
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- 2016-04-22 CN CN201610971505.1A patent/CN106527706B/en active Active
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017182004A1 (en) * | 2016-04-22 | 2017-10-26 | 苏州思源科安信息技术有限公司 | Human machine interface system and method of providing guidance and instruction for iris recognition on mobile terminal |
| US10819894B2 (en) | 2016-04-22 | 2020-10-27 | Suzhou Siyuan Kean Information Technology Co., Ltd | Human machine interface system and method of providing guidance and instruction for iris recognition on mobile terminal |
| CN106407964A (en) * | 2016-11-15 | 2017-02-15 | 刘霁中 | Device and method using visible light source to collect iris and terminal device |
| CN106407964B (en) * | 2016-11-15 | 2023-11-07 | 刘霁中 | Device, method and terminal equipment for acquiring iris by using visible light source |
| CN106603940A (en) * | 2016-12-29 | 2017-04-26 | 上海集成电路研发中心有限公司 | Global pixel iris identification image sensor |
| CN113411477A (en) * | 2021-06-10 | 2021-09-17 | 支付宝(杭州)信息技术有限公司 | Image acquisition method, device and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106527706A (en) | 2017-03-22 |
| CN106503680B (en) | 2019-08-06 |
| CN106503680A (en) | 2017-03-15 |
| CN106527706B (en) | 2019-03-01 |
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