CN110334579A - A kind of iris recognition image determines method, apparatus, terminal device and storage medium - Google Patents
A kind of iris recognition image determines method, apparatus, terminal device and storage medium Download PDFInfo
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- CN110334579A CN110334579A CN201910372040.1A CN201910372040A CN110334579A CN 110334579 A CN110334579 A CN 110334579A CN 201910372040 A CN201910372040 A CN 201910372040A CN 110334579 A CN110334579 A CN 110334579A
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- attentively
- mark
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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
- G06V40/193—Preprocessing; Feature extraction
Abstract
The embodiment of the invention discloses a kind of iris recognition images to determine method, apparatus, terminal device and storage medium.The described method includes: display gaze mark；It is identified based on the gaze and determines that target watches mark attentively；User is watched attentively target user's image when the target watches mark attentively as iris recognition image.Using this method avoid directly acquire user images as when iris recognition image, the technical issues of iris recognition accuracy decline caused by iris information possibility is imperfect, the present embodiment, which carries out iris recognition to the iris recognition image, can be improved the precision of iris recognition, and the iris recognition image for being most appropriate for iris recognition is first obtained before carrying out iris recognition, it is effectively reduced the time of iris recognition.
Description
Technical field
The present embodiments relate to technical field of image processing more particularly to a kind of iris recognition image to determine method, dress
It sets, terminal device and storage medium.
Background technique
Iris is the oblate annular membrane in wall of eyeball middle layer, between cornea and crystalline lens.Each iris wraps
Structure containing features such as a unique picture hat, crystalline, filament, spot, structure, concave point, ray, wrinkle and stripeds.
Therefore identification is able to carry out based on iris.
The step of iris recognition, specifically includes that image acquisition, pretreatment, feature extraction and characteristic matching.To acquisition
It when eyes image is handled, needs to include more visible iris information in eyes image, so as to effectively based on acquisition
Eyes image carry out identification.
However, iris recognition is such as embedded into virtual reality (Virtual in the practical application of iris recognition
Reality, VR) or the equipment such as augmented reality (Augmented Reality, AR) in when, the image collecting device in each equipment
Position be not fixed, which results in by the way that part iris information may be lost in the eyes image of image acquisition device,
To affect the precision of iris recognition.
Summary of the invention
The embodiment of the invention provides a kind of iris recognition images to determine method, apparatus, terminal device and storage medium, with
The precision for improving iris recognition, reduces the time of iris recognition.
In a first aspect, the embodiment of the invention provides a kind of iris recognition images to determine method, comprising:
Show gaze mark；
It is identified based on the gaze and determines that target watches mark attentively；
User is watched attentively target user's image when the target watches mark attentively as iris recognition image.
Optionally, described identified based on the gaze determines that target watches mark attentively, comprising:
The first user images when user watches gaze mark attentively are obtained, and are extracted in first user images
The first shape information of eye；
Determine that target watches mark attentively according to the first shape information.
It is optionally, described to determine that target watches mark attentively according to the first shape information, comprising:
When the long axis of the first shape information and short axle difference are lower than the first setting value, the gaze is identified
Mark is watched attentively as target；
When the long axis of the first shape information and short axle difference are higher than the first setting value, by the first shape information
The first projection closed loop shape is formed at projection to the gaze home position, and based on the first projection closed loop shape
First straight line where short axle determines that target watches mark attentively.
Optionally, first straight line where the short axle based on the first projection closed loop shape determines that target watches mark attentively
Know, comprising:
It is determined based on first straight line where the short axle of the first projection closed loop shape and next watches mark attentively；
It obtains user and watches next second user image when watching mark attentively attentively；
Determine that target watches mark attentively according to corresponding second shape information of eye in the second user image.
Optionally, first straight line where the short axle based on the first projection closed loop shape, which determines, next watches mark attentively
Know, comprising:
The mark for being greater than given threshold with first straight line distance where the short axle of the first projection closed loop shape is chosen to make
Mark is watched attentively to be next.
Optionally, described to determine that target watches mark attentively according to corresponding second shape information of eye in the second user image
Know, comprising:
Extract the second shape information of eye in the second user image；
When the long axis of second shape information and short axle difference are lower than the first setting value, next mark is watched attentively for described
It is determined as target and watches mark attentively；
When the long axis of second shape information and short axle difference are higher than the first setting value, by second shape information
Projection to it is described it is next watch attentively at home position formed second projection closed loop shape, and by the first straight line and it is described second throw
The intersection point of second straight line watches mark attentively as target where the short axle of shadow closed loop shape.
Optionally, iris recognition image determines method, further includes:
Determine that gaze identifies according to the size of display equipment.
Optionally, the size according to display equipment determines that gaze identifies, comprising:
The vertex information of the display equipment is determined according to the size of display equipment；
Determine that gaze identifies based on the vertex information.
Second aspect, the embodiment of the invention also provides a kind of iris recognition image acquiring devices, comprising:
Display module, for showing that gaze identifies；
Target watches mark determining module attentively, determines that target watches mark attentively for identifying based on the gaze；
Image determining module is known for user to be watched attentively to target user's image when the target watches mark attentively as iris
Other image.
The third aspect, the embodiment of the invention also provides a kind of terminal devices, comprising:
One or more processors；
Storage device, for storing one or more programs；
One or more of programs are executed by one or more of processors, so that one or more of processors
Realize that iris recognition image provided in an embodiment of the present invention determines method.
Fourth aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program, the program realize that iris recognition image provided in an embodiment of the present invention determines method when being executed by processor.
The embodiment of the invention provides a kind of iris recognition images to determine method, apparatus, terminal device and storage medium, first
It first shows that gaze identifies, is then based on the gaze mark and determines that target watches mark attentively；Finally watch user attentively institute
Target user's image when target watches mark attentively is stated as iris recognition image, avoids and directly acquires user images as iris
Identify image when, iris information may it is imperfect caused by iris recognition accuracy decline the technical issues of, the present embodiment is to the rainbow
Film identification image carries out iris recognition and can be improved the precision of iris recognition, since the speed of eyeball tracking is far faster than iris recognition
Speed, first obtained before carrying out iris recognition and be most appropriate for the iris recognition image of iris recognition, be effectively reduced iris
The time of identification.
Detailed description of the invention
Fig. 1 is the flow diagram that a kind of iris recognition image that the embodiment of the present invention one provides determines method；
Fig. 2 a is the flow diagram that a kind of iris recognition image provided by Embodiment 2 of the present invention determines method；
Fig. 2 b is the display schematic diagram of a scenario of gaze provided in an embodiment of the present invention mark；
Fig. 2 c is collected first when user provided in an embodiment of the present invention watches the mark of the gaze shown in Fig. 2 b attentively
The image schematic diagram of user images；
Fig. 3 a is the flow diagram that a kind of iris recognition image that the embodiment of the present invention three provides determines method；
Fig. 3 b is next display schematic diagram of a scenario for watching mark attentively provided in an embodiment of the present invention；
What Fig. 3 c was that user provided in an embodiment of the present invention watches attentively shown in Fig. 3 b next watches attentively collected second when mark
The image schematic diagram of user images；
Fig. 4 a is the flow diagram that a kind of iris recognition image that the embodiment of the present invention four provides determines method；
Fig. 4 b is the schematic diagram of a scenario that target watches mark attentively in the embodiment of the present invention；
Fig. 4 c is target user's image that user watches when the target shown in Fig. 4 b watches mark attentively attentively in the embodiment of the present invention
Image schematic diagram；
Fig. 5 is a kind of structural schematic diagram for iris recognition image determining device that the embodiment of the present invention five provides；
Fig. 6 is a kind of structural schematic diagram for terminal device that the embodiment of the present invention six provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing or method described as flow chart.Although operations (or step) are described as the processing of sequence by flow chart,
Many of these operations can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be pacified again
Row.The processing can be terminated when its operations are completed, it is also possible to have the additional step being not included in attached drawing.Institute
Stating processing can correspond to method, function, regulation, subroutine, subprogram etc..In addition, in the absence of conflict, the present invention
In embodiment and embodiment in feature can be combined with each other.In following each embodiments, provided simultaneously in each embodiment
Optional feature and example, each feature recorded in embodiment can be combined, and form multiple optinal plans, should not be by each volume
Number embodiment be considered merely as a technical solution.
Embodiment one
Fig. 1 is the flow diagram that a kind of iris recognition image that the embodiment of the present invention one provides determines method, this method
It is applicable to the case where determining iris recognition image, specifically, this method is applicable to before iris recognition, is determined and is used for iris
The case where target user's image, i.e. iris recognition image of identification, this method can be held by iris recognition image determining device
Row, wherein the device can be implemented by software and/or hardware, and be typically integrated on terminal device, and terminal is set in the present embodiment
It is standby to include but is not limited to: the equipment such as computer, personal digital assistant and/or mobile phone.
As shown in Figure 1, a kind of iris recognition image that the embodiment of the present invention one provides determines method, include the following steps:
S101, display gaze mark.
In the present embodiment, gaze mark can be understood as the mark for needing user to watch attentively for the first time.Such as, gaze
Mark, gaze track cause the text information for watching interest attentively or image information etc..Gaze mark may include position
Confidence breath and display format information.Such as, location information can identify the display position of gaze mark.Display format information can
To identify the form that gaze mark is presented in display, such as point, circle or text.
Predetermined gaze can be identified display in user's field range by this step.When user passes through display
When equipment acquires iris recognition image, gaze can be identified into display on the display device.Gaze is not limited herein
Predetermined means are identified, those skilled in the art can determine according to user's field range.It should be noted that initial note
It may be to set at random that sighting target, which is known, as long as guaranteeing gaze mark in user's field range.
It is understood that can be set apart from the display position that gaze identifies when showing gaze mark
Display reminding information at set a distance, to prompt user to watch gaze mark attentively.Wherein, the particular content of prompt information is not made
It limits, as long as prompt effect can be played.Set distance is not construed as limiting, as long as closing on the display position of gaze mark
?.
It is capable of determining that target watches mark attentively based on gaze mark, consequently facilitating determining iris recognition image.
S102, determine that target watches mark attentively based on gaze mark.
In the present embodiment, target watch attentively mark can be understood as being watched attentively for user can obtain iris recognition figure
Picture watches mark attentively, watches track attentively, causes the text information for watching interest attentively or image information etc..
After showing gaze mark, it can be identified based on gaze and determine that target watches mark attentively.It such as can be by right
The first user images when user watches gaze mark attentively, which carry out analyzing determining target, watches mark attentively.
Determining that target watches the means of mark attentively can be with are as follows: shows at least two gaze marks on the display device in advance
Know, then obtains each gaze and identify corresponding first user images, may include eyes of user in first user images.
Then to each first user images carry out analysis extract eye feature information, as pupil position, pupil shape, iris position,
The features such as iris shape, eyelid position, canthus position, hot spot (also referred to as Purkinje image) position.Be then based on determine it is each
Eye feature information and corresponding gaze mark determine the position letter for watching mark attentively in the vertical user images direction of emergent shaft
Breath, watches mark attentively to obtain target.In general, optical axis and optical axis angle are fixed, the optical axis is consistent with direction of gaze.
Determining that target watches the means of mark attentively can be with are as follows: shows a predetermined gaze on the display device
Mark, be then based on user watch attentively gaze mark when the first user images, determine it is next watch mark attentively, be then based on use
Next second user image and the first user images when watching mark attentively is watched at family attentively, determines optical axis perpendicular to user images direction
Watch mark attentively, watches mark attentively to obtain target.
After this step determines that target watches mark attentively attentively, user can be watched to target user's image that the target watches mark attentively
As iris recognition image, to carry out iris recognition.
S103, user is watched to target user's image when the target watches mark attentively attentively as iris recognition image.
In the present embodiment, target user's image can be understood as user images when user's fixation object watches mark attentively.
Iris recognition image can be understood as the image for carrying out iris recognition.The iris recognition image may be considered carry out iris
The ideal image of identification, which includes the features of set amount needed for carrying out iris recognition.Set amount can be according to practical feelings
Condition is determined, and the numerical value of set amount is bigger, and iris recognition precision is higher.It is understood that the pupil in iris recognition image
The shape in hole can be to be round or approximate circle, i.e. the pupil shape of iris recognition image can satisfy long axis and short axle difference is low
In the first setting value.
Specifically, when this step obtains target user's image displaying target mark can be watched attentively in user's field range,
Mark is watched attentively to prompt user to watch the target attentively.It, can be in display equipment when user carries out iris recognition using display equipment
Upper displaying target watches mark attentively, watches mark attentively to prompt user to watch the target attentively.Then pass through image acquisition device user
Image can be directly using the user images as target user's image after acquiring user images；It can also be to the user images
Analyze and determine whether the corresponding eye feature of the user images meets sets requirement, does not see to target and watch attentively to avoid user
Mark.
Wherein, sets requirement can according to optical axis perpendicular to user images when the corresponding eye feature information of user images
It determines, the difference if pupil shape is round or approximate circle long axis and short axle is lower than the first setting value.First setting value can
To be set according to the actual situation, it is not construed as limiting herein.
Mark of watching attentively in the present embodiment by optical axis perpendicular to user images direction watches mark attentively as target, then will use
Family watches target user's image when the target watches mark attentively attentively as iris recognition image, can improve strabismus or eye is problematic
User or optical axis and the optical axis between the excessive user of angle (angle kappa) carried out using the user images that boresight direction provides
When iris recognition, the technical issues of caused iris recognition accuracy decline.
A kind of iris recognition image that the embodiment of the present invention one provides determines method, shows that gaze identifies first, so
It is identified afterwards based on gaze and determines that target watches mark attentively；User is finally watched attentively to the target user when target watches mark attentively
Image avoids when directly acquiring user images as iris recognition image, iris information may not as iris recognition image
The technical issues of iris recognition accuracy decline caused by complete, the present embodiment carries out iris recognition to the iris recognition image can
Improve iris recognition precision, due to eyeball tracking speed far faster than iris recognition speed, before carrying out iris recognition elder generation
The iris recognition image for being most appropriate for iris recognition is obtained, the time of iris recognition is effectively reduced.
Embodiment two
Fig. 2 a is the flow diagram that a kind of iris recognition image provided by Embodiment 2 of the present invention determines method, this implementation
Example two optimizes on the basis of the various embodiments described above.In the present embodiment, it will be identified based on the gaze and determine mesh
It marks sighting target to know, be further detailed as: obtaining the first user images when user watches gaze mark attentively, and extract
The first shape information of eye in first user images；Determine that target watches mark attentively according to the first shape information.
The not yet detailed content of the present embodiment please refers to embodiment one.
As shown in Figure 2 a, a kind of iris recognition image provided by Embodiment 2 of the present invention determines method, includes the following steps:
S201, display gaze mark.
Fig. 2 b is the display schematic diagram of a scenario of gaze provided in an embodiment of the present invention mark.Rectangular area can in Fig. 2 b
Think user's field range, when determining iris recognition image, can be shown in field range gaze mark 21, and
Near gaze mark 21, such as lower section, display reminding information please such as watch the point attentively.
The technological means for not limiting predetermined gaze mark herein, can any selection in user's field range
One mark is identified as gaze, can also determine that gaze identifies based on the size of display equipment.
S202, acquisition user watch the first user images when gaze mark attentively, and extract first user
The first shape information of eye in image.
In the present embodiment, the first user images can be understood as user images when user watches gaze mark attentively.
First shape information can be understood as indicating the information of eye shape in the first user images.Wherein, eye shape can pass through
Pupil shape or iris shape representation.First shape information can be quasi- for the eye contour information to eye in the first user images
The information formed after conjunction.Wherein, eye profile information can be determined by the profile of pupil and/or the profile of iris.Illustratively,
First shape information includes round, approximate circle or oval etc..First shape information can also include it is round, approximate circle or
Oval corresponding long axis, short axle and/or boundary information etc..
After showing gaze mark, this step can obtain user by image collecting device and watch gaze mark attentively
When the first user images.This step can will directly show the user images obtained after gaze mark as the first user
Image, can also using after display gaze mark and receive user's confirmation watch attentively after instruction the user images that acquire as
First user images.Wherein, confirmation is watched the obtaining means of instruction attentively and is not construed as limiting, can detecte physical button to press state true
It is fixed, it can also be obtained by way of speech recognition.
Fig. 2 c is collected first when user provided in an embodiment of the present invention watches the mark of the gaze shown in Fig. 2 b attentively
The image schematic diagram of user images.Fig. 2 c shows the first user images when user 22 watches gaze mark attentively.This first
It include Fresnel annulus in user images.
After obtaining the first user images, this step can extract the first shape information of eye in the first user images, mention
The means taken are not construed as limiting, as long as being capable of determining that the corresponding first shape information of the first user images.Illustratively, first
The pupil contour feature or iris contour feature for first extracting eye in the first user images, then to pupil contour feature and iris
Contour feature carries out closed loop fitting, forms the curve of closed loop, is then based on the closed loop curve and obtains first shape information.
The technological means for carrying out closed loop fitting is not defined herein, it can be using direct calculation method, secondary more
Item formula approximating method and normal equation approximating method etc..It is not limited included by pupil contour feature or iris contour feature herein yet
Particular content, as long as corresponding pupil profile and iris profile can be characterized, such as pupil edge point coordinate, pupil center
Coordinate, iris edge point coordinate and iris centre coordinate etc..
S203, determine that target watches mark attentively according to the first shape information.
Specifically, this step can first determine whether first shape information meets and set after determining first shape information
Provisioning request directly can watch gaze mark attentively mark as target when first shape information meets sets requirement.
When first shape information is unsatisfactory for sets requirement, can be determined based on first shape information it is next watch mark attentively,
With based on gaze mark and it is next watch attentively mark determine target watch attentively mark or be directly based upon it is next watch attentively mark determine mesh
Sighting target is marked to know.
S204, user is watched to target user's image when the target watches mark attentively attentively as iris recognition image.
After determining that target watches mark attentively, user's fixation object can be watched attentively target user's image when mark by this step
As iris recognition image.
It should be noted that then target user's image i.e. first is used when the target watches attentively and is identified as gaze mark
Family image, this step can be directly using the first user images as iris recognition image.
A kind of iris recognition image provided by Embodiment 2 of the present invention determines method, embodies determining target and watches mark attentively
Operation.It can show that gaze identifies first using this method, then obtain user and watch attentively when the gaze identifies
First user images, the first shape information based on eye in the first user images further determine that target watches mark attentively, will
Target user's image when fixation object watches mark attentively is as iris recognition image.Mark is watched attentively compared to random display at least two
Know determination target to watch attentively for the corresponding iris recognition image of mark, effectively raises the accurate of iris recognition image determination
Degree.
The present embodiment further provides alternative embodiment, in the alternative embodiment, will be believed according to the first shape
It ceases and determines that target watches mark attentively, optimization includes:
When the long axis of the first shape information and short axle difference are lower than the first setting value, the gaze is identified
Mark is watched attentively as target；When the long axis of the first shape information and short axle difference are higher than the first setting value, by described the
One shape information is projected to the first projection of formation closed loop shape at the gaze home position, and based on first projection
First straight line where the short axle of closed loop shape determines that target watches mark attentively.
When determining that target watches mark attentively, first shape information can be analyzed, be by the gaze with determination
Mark watches mark attentively as target；It is also to continue with and determines that target watches mark attentively based on first shape information.
When the long axis of first shape information and short axle difference are lower than the first setting value, it is believed that first user images
Eye feature information meet the requirement of eye feature in iris recognition image.Gaze mark can be used as target and watch attentively
Mark, accordingly can be using the first user images as iris recognition image.
When the long axis of first shape information and short axle difference are higher than the first setting value, it is believed that current gaze mark
Knowledge is not that target watches mark attentively, then needs to further determine that target watches mark attentively based on first shape information.Specifically, can incite somebody to action
First shape information is projected to the first projection of formation closed loop shape at gaze home position.
Illustratively, when the long axis of first shape information and short axle difference are higher than the first setting value, first shape is believed
It can be embodied as at breath projection to gaze home position: the center of first shape information is placed on gaze mark
At position, the angle after the projection of first shape information can be based on short axle or long axis and horizontal direction or short axle or long axis and hang down
Histogram to angle determine.
It is understood that before user is mobile, if eye when image collecting device face eyes of user, in user images
The shape of eyeball is circle.When eyes of user is moved, the folder of the boundary point of eyes and image collecting device on moving direction
Angle becomes smaller, and the corresponding projection of eyes becomes smaller, and shorten the short axle that direction is ellipse in eyes, which is oriented parallel to move
The preceding line for watching mark attentively with after movement two.
When watching attentively at home position after projecting first shape information to movement, the short axle institute of the first projection closed loop shape
Mark is watched attentively before straight line is by movement, i.e., watches mark attentively by target.Therefore based on straight where the first projection closed loop shape short axle
Line can determine that target watches straight line where mark attentively, so as to further determine that out that target watches mark attentively.
Embodiment three
Fig. 3 a is the flow diagram that a kind of iris recognition image that the embodiment of the present invention three provides determines method, this implementation
Example two optimizes on the basis of the various embodiments described above.It in the present embodiment, will be based on the first projection closed loop shape
First straight line where short axle determines that target watches mark attentively, and optimization includes: the short axle place based on the first projection closed loop shape
First straight line, which determines, next watches mark attentively；It obtains user and watches next second user image when watching mark attentively attentively；According to institute
It states corresponding second shape information of eye in second user image and determines that target watches mark attentively.
Further, optimization is also included by the present embodiment: determining that gaze identifies according to the size of display equipment.
The not yet detailed content of the present embodiment please refers to above-described embodiment.
As shown in Figure 3a, a kind of iris recognition image that the embodiment of the present invention three provides determines method, includes the following steps:
S301, determine that gaze identifies according to the size of display equipment.
In this example it is shown that equipment can be understood as the equipment for obtaining iris recognition image.Size can pass through length
Degree, width or resolution representation.The present embodiment can be determined just before display gaze mark based on the size of display equipment
Beginning watches mark attentively.Such as gaze mark is arranged at the boundary position of display equipment, it is subsequent to first shape letter to improve
The extraction effect of breath.Because when at the boundary position that display equipment is arranged in gaze mark, in corresponding user images
Eye feature, such as pupil shape is capable of forming the obvious ellipse that the difference of long axis and short axle is greater than the set value, obvious ellipse to this
When circle carries out first shape information extraction, better effect.The specific value of setting value is not construed as limiting, and those skilled in the art can be with
It is set according to practical application scene.
Wherein, boundary position can be for the boundary of display equipment or at the boundary set distance position for showing equipment.
The display equipment may include display device, such as display screen, can also include light source, image collecting device and driving
Equipment.Wherein, light source can be infrared LED light source.Because infrared LED light source will not influence the vision of eyes.Infrared LED light source
It may include 2 groups or 2 groups or more, every group contains at least one infrared LED light source.Each infrared LED light source can be with the side of setting
Formula arrangement, such as round, isosceles triangle etc..Light source can be illuminated to shoot human eye information, then pass through corneal reflection to Image Acquisition
Using the parameter as eyeball tracking and sight estimation in device；
Image collecting device, such as infrared image pickup device, infrared image sensor, camera or video camera.Image collector
User images needed for can shooting eyeball tracking and iris recognition are set, watch target user when mark attentively such as user's fixation object
Image；
Driving equipment: driving image collecting device and infrared LED light source carry out image preprocessing or communicate with other equipment
Deng.
S302, display gaze mark.
S303, acquisition user watch the first user images when gaze mark attentively, and extract first user
The first shape information of eyes in image.
The process for obtaining the first user images can be that infrared light supply is pointed into eyes of user, by image collecting device to eye
Portion is shot, reflection point, that is, hot spot of the corresponding photographic light sources on cornea, thus obtains the eyes image conduct for having hot spot
First user images.
Whether S304, the long axis for judging first shape information and short axle difference are lower than the first setting value, if so, executing
S305；If it is not, then executing S306.
When determining that target watches mark attentively based on first shape information, it can be determined that the long axis and short axle of first shape information
Whether difference is lower than the first setting value.Mark is watched attentively as target if so, the gaze can be identified, that is, is executed
S305.Next watch mark attentively if not, may further determine that and to obtain target watch mark attentively, it can execution S306.
S305, it is used as target to watch mark attentively gaze mark, executes S309.
S306, the first shape information is projected to the first projection of formation closed-loop shaped at the gaze home position
Shape, and determined based on first straight line where the short axle of the first projection closed loop shape and next watch mark attentively.
When the long axis of first shape information and short axle difference are lower than the first setting value, this step can believe first shape
The first projection closed loop shape is formed at breath projection to gaze home position.Projection means may refer to project in embodiment two
Used technological means, does not repeat herein.
Wherein, the first projection closed loop shape can be understood as the projection shape that first shape information is look at home position
Shape.The first projection closed loop shape needs to guarantee that the center of the first projection closed loop shape is gaze marker in projection
It sets, the angle of the first projection closed loop shape is fitted the angle phase for the first shape information to be formed with eyes in the first user images
Together.
After determining the first projection closed loop shape, first straight line where the short axle that can project closed loop shape based on first is true
It fixs and watches mark attentively.Specifically, because the first straight line where the short axle of the first projection closed loop shape watches mark attentively by target
Know, therefore any mark outside first straight line can be chosen herein as next and watch mark attentively, to watch mark determination attentively based on next
Target watches mark attentively.
S307, it obtains user and watches next second user image when watching mark attentively attentively.
Determine it is next watch mark attentively after, can by it is next watch attentively mark display in user's visual field, and with gaze mark
Know and is in same plane.When obtaining iris recognition image by display equipment, it can show and next watch attentively on the display device
Then mark obtains user and watches next second user image when watching mark attentively attentively.The means for obtaining second user image can be with
Referring to the means used when obtaining the first user images, do not repeat herein.
Fig. 3 b is next display schematic diagram of a scenario for watching mark attentively provided in an embodiment of the present invention.Rectangular area can in Fig. 3 b
Think user's field range, when determining iris recognition image, can be shown in field range it is next watch mark 31 attentively, and
This is next to watch attentively near mark 31, and such as lower section, display reminding information please such as watch the point attentively.
What Fig. 3 c was that user provided in an embodiment of the present invention watches attentively shown in Fig. 3 b next watches attentively collected second when mark
The image schematic diagram of user images.Fig. 3 c shows user 32 and watches next second user image when watching mark attentively attentively.This second
It include Fresnel annulus in user images.
S308, determine that target watches mark attentively according to corresponding second shape information of eye in the second user image.
Second shape information can be understood as indicating eye shape information in second user image.Wherein, eye shape can
To pass through pupil shape or iris shape representation.
Determine that the means of the second shape information of eye in second user image may refer to determine first shape information
Technological means does not repeat herein.
This step can determine that target watches mark attentively according to the second shape information, e.g., when the second shape information long axis and
When short axle difference is lower than the first setting value, can directly by this it is next watch mark attentively as target and watch mark attentively, otherwise can be based on
First straight line and the second shape information determine that target watches mark attentively.
S309, user is watched to target user's image when the target watches mark attentively attentively as iris recognition image.
When it is next watch attentively be identified as target and watch mark attentively when, can be directly using second user image as iris recognition figure
Picture；Otherwise, mark can be watched attentively with displaying target, watch user attentively target user's image when the target watches mark attentively as iris
Identify image.
A kind of iris recognition image that the embodiment of the present invention three provides determines method, embodies determining gaze mark
Operation and according to first projection closed loop shape short axle where first straight line determine that target watches the operation of mark attentively.Utilize the party
Method determines that gaze identifies based on the size of display equipment, when can guarantee to extract the first user images, the first user images
Middle eyes are closer to obvious ellipse, so as to improve fitting effect, watch mark attentively so that target is determined more accurately out.And
When determining that target watches mark attentively, determine next to watch corresponding second shape information of mark, Neng Gouzhun attentively based on first straight line
The true target that obtains watches mark attentively, to improve the efficiency of iris recognition image acquisition.
Further, first straight line where the short axle based on the first projection closed loop shape, which determines, next watches mark attentively
Know, comprising: choose the mark for being greater than given threshold with first straight line distance where the short axle of the first projection closed loop shape and make
Mark is watched attentively to be next.
It is understood that based on first straight line determine it is next watch mark attentively when, can with selected distance first project close
The mark that first straight line where the short axle of ring-shaped is greater than given threshold watches mark attentively as next.Given threshold this field skill
Art personnel can set according to the actual situation, be not construed as limiting herein.
Next to watch mark attentively bigger apart from first straight line distance, next to watch mark attentively and the offset of first straight line is bigger, from
And the intersection point for the second straight line that first straight line and the second shape information are determined be determined as target watch the accuracy of mark attentively getting over
It is high.
Further, determine that gaze identifies according to the size of display equipment, optimization includes:
The vertex information of the display equipment is determined according to the size of display equipment；It is determined based on the vertex information initial
Watch mark attentively.
Wherein, vertex information can be understood as the coordinate information on display equipment vertex.Such as, show equipment vertex include but
It is not limited to: the upper left corner, the upper right corner, the lower left corner and the lower right corner.
When determining the location information of gaze mark according to the size of display equipment, initial note can be further limited
Sighting target, which is known, to be located at the vertex position of display equipment, and the figure that eye is formed in the first user images at this time is closer to obvious ellipse
Circle, so that extraction effect is more accurate when extracting the first shape information in the first user images.
After the size for determining display equipment, the vertex information of display equipment can be determined based on the size of display equipment.
Determine that the means of vertex information are not construed as limiting, it such as can be based on the minimum value and maximum value in the length and width direction of display equipment
Determine vertex information.Vertex information is not limited herein as the coordinate information on which vertex in display equipment.
After determining vertex information, can directly it be identified the vertex information as gaze, it can also be by gaze
Mark setting is in the display device at the position apart from vertex information default value.The selection of default value is not construed as limiting herein,
Those skilled in the art can set according to the size of display equipment.
Example IV
Fig. 4 a is the flow diagram that a kind of iris recognition image that the embodiment of the present invention four provides determines method, this implementation
Example four optimizes on the basis of the various embodiments described above.It in the present embodiment, will be according to eye in the second user image
Corresponding second shape information determines that target watches mark attentively, and optimization includes:
Extract the second shape information of eye in the second user image；
When the long axis of second shape information and short axle difference are lower than the second setting value, next mark is watched attentively for described
It is determined as target and watches mark attentively；
When the long axis of second shape information and short axle difference are higher than the second setting value, by second shape information
Projection to it is described it is next watch attentively at home position formed second projection closed loop shape, and by the first straight line and it is described second throw
The intersection point of second straight line watches mark attentively as target where the short axle of shadow closed loop shape.
The not yet detailed content of the present embodiment please refers to above-described embodiment.
As shown in fig. 4 a, a kind of iris recognition image that the embodiment of the present invention four provides determines method, includes the following steps:
S401, determine that gaze identifies according to the size of display equipment.
S402, display gaze mark.
S403, acquisition user watch the first user images when gaze mark attentively, and extract first user
The first shape information of eye in image.
Whether S404, the long axis for judging first shape information and short axle difference are lower than the first setting value, if so, executing
S405；If it is not, then executing S406.
S405, it is used as target to watch mark attentively gaze mark, executes S412.
S406, the first shape information is projected to the first projection of formation closed-loop shaped at the gaze home position
Shape, and determined based on first straight line where the short axle of the first projection closed loop shape and next watch mark attentively.
S407, it obtains user and watches next second user image when watching mark attentively attentively.
S408, the second shape information for extracting eye in the second user image.
It, can be first according to when corresponding second shape information of eye determines that target watches mark attentively in the second user image
First extract the second shape information of eye in second user image.Illustratively, can first to second user image eye into
Row fitting, specific fitting means may refer to the technological means used when determining first shape information, do not repeat herein.
Whether S409, the long axis for judging the second shape information and short axle difference are lower than the second setting value, if so, executing
S410；If it is not, then executing S411.
After determining the second shape information, it can be determined that whether the long axis and short axle difference of the second shape information are lower than
Two setting values, if so, it may be considered that it is next watch attentively be identified as target and watch mark attentively, i.e. execution S410.If it is not, can be into one
It walks and determines that target watches mark attentively, it can execute S411.
It should be noted that the specific value of the first setting value and the second setting value is not construed as limiting, those skilled in the art
It may be set according to actual conditions.First setting value and the second setting value can be equal or differ.
S410, by it is described it is next watch mark attentively and be determined as target watch mark attentively, execute S412.
Target watches mark attentively can be characterized by coordinate, this step by it is next watch attentively mark watch mark attentively as target can be with
Think that the two coordinate is identical.
S411, by the second shape information project to it is described it is next watch attentively at home position formed second projection closed loop shape,
And the intersection point of second straight line where the short axle of the first straight line and the second projection closed loop shape is watched attentively mark as target
Know.
When the long axis of the second shape information and short axle difference are lower than the second setting value, the second shape information can be projected
To it is next watch attentively at home position obtain the second projection closed loop shape.
The determination means of second projection closed loop shape may refer to the determination means of the first projection closed loop shape, not make herein
It limits.
After the second obtained projection closed loop shape, this step can will be the where first straight line and the second projection closed loop shape
The intersection point of two straight lines watches mark attentively as target.It is understood that target, which watches mark attentively, is located at projection closed loop shape short axle institute
On straight line, therefore the intersection point of first straight line and second straight line is that target watches mark attentively.Projecting closed loop shape includes the first projection
Closed loop shape and/or the second projection closed loop shape.
Fig. 4 b is the schematic diagram of a scenario that target watches mark attentively in the embodiment of the present invention.Gaze mark is determined in Fig. 4 b
First projection closed loop shape 41 short axle where first straight line and it is next watch attentively mark determine second projection closed loop shape
The intersection point of second straight line where 42 short axle is that target watches mark 43 attentively.The target, which watches mark 43 attentively, may be displayed on display equipment
In.
S412, user is watched to target user's image when the target watches mark attentively attentively as iris recognition image.
When it is next watch attentively be identified as target and watch mark attentively when, next second for watching mark attentively and obtaining can be watched attentively with end user
User images are determined as iris recognition image.When target, which is watched attentively, is identified as intersection position, can first displaying target watch mark attentively,
Target user's image when user's fixation object to be watched attentively to mark then is as iris recognition image.
Fig. 4 c is target user's image that user watches when the target shown in Fig. 4 b watches mark attentively attentively in the embodiment of the present invention
Image schematic diagram.C referring to fig. 4, the pupil in user 44 are circle, and can include set amount needed for carrying out iris recognition
Feature, target user's image can be used as iris recognition image.
The technical solution of the embodiment of the present invention is illustratively illustrated below:
Iris recognition needs more visible and stable iris information, lacks the iris in the user images for instructing situation to obtain
Information is sufficiently complete, and accuracy of identification is caused to decline.Situation is instructed to may be considered watching attentively by target of providing in the present embodiment
Mark obtains iris recognition image.
In actual use, especially when iris recognition is embedded into the equipment such as VR/AR, iris recognition is item
An assistance application in mesh, device therefor video camera, i.e. image collecting device, position is indefinite, and parts of images has lost rainbow
Film information, it is not friendly enough to iris recognition, cause iris recognition precision lower.
For above-mentioned several situations, the present embodiment provides a kind of guidance program, by the sign in scene, i.e., initially
Watch mark attentively, prompts user to watch attentively, so that iris recognition image is obtained, so that can also provide best iris in fixed equipment
Image.
The technical solution of the present embodiment may be considered to be identified by prompt, i.e., target watches mark attentively, obtains iris recognition
Image, to carry out iris recognition to iris recognition image.
Specifically, user is prompted to watch the gaze mark in the display equipment upper left corner attentively first in visual field, corresponded to
The first user images, be then based on the first user images placed at gaze mark first projection closed loop shape, be based on
First straight line where first projection closed loop shape short axle determines, be not in first straight line next watches mark attentively.In visual field
Prompt user watch attentively it is next watch mark attentively, corresponding acquisition user watches next second user image for watching mark attentively attentively.Gaze
It the position of mark can be on display equipment level and/or vertical direction at minimum value and/or maximum value position.As long as can protect
The transverse and longitudinal coordinate range of card gaze mark includes the coordinate that target watches mark attentively.Such as, the upper left corner, the upper right corner are left
Inferior horn and the lower right corner.
Then according to Rotation of eyeball, (optical axis and optical axis angle are fixed, the optical axis and note with particular kind of relationship existing for position is watched attentively
It is consistent to release direction), the target for calculating vertical eye figure (user images) direction of emergent shaft watches the apparent position of mark attentively, and prompts to use
The mark is watched at family attentively, to acquire target user's image.Finally iris is carried out using target user's image as iris recognition image
Identification.
In addition, can also acquire several when determining that target watches mark attentively and watch the corresponding user images of mark attentively, according to
These watch mark, corresponding user images and Rotation of eyeball attentively and watch attentively particular kind of relationship existing for position calculate emergent shaft vertically with
The corresponding eyeball angles of image make the eyeball of user go to the angle by watching attentively to guide.
Based on technical solution provided in this embodiment when acquiring iris recognition image, user's fixation object is instructed to watch mark attentively
Know, finds foundation by image of optical axis, collected iris recognition image is capable of providing more complete iris information, improves
The precision of iris recognition reduces multiple iris recognition bring computing resource waste.
A kind of iris recognition image that the embodiment of the present invention four provides determines method, embodies according to the second user
Corresponding second shape information of eye determines that target watches the operation of mark attentively in image, using this method, can determine second
After shape information, determine by it is next watch attentively mark as target watch attentively mark or using first straight line and second straight line intersection point as
Target watches mark attentively, improves target and watches the determining efficiency of mark attentively.
Embodiment five
Fig. 5 is a kind of structural schematic diagram for iris recognition image determining device that the embodiment of the present invention five provides, the device
It is applicable to the case where determining iris recognition image, specifically, which is applicable to before iris recognition, determines and is used for iris
The case where target user's image, i.e. iris recognition image of identification, wherein the device can be implemented by software and/or hardware, and one
As integrate on the terminal device.
As shown in figure 5, the device includes: display module 51, target watches mark determining module 52 and image determining module attentively
53；
Wherein, display module 51, for showing that gaze identifies；
Target watches mark determining module 52 attentively, determines that target watches mark attentively for identifying based on the gaze；
Image determining module 53, for user to be watched to target user's image when the target watches mark attentively attentively as iris
Identify image.
In the present embodiment, which passes through the display gaze mark of display module 51 first；Then it is infused by target
Sighting target knows determining module 52 and determines that target watches mark attentively based on gaze mark；It will finally by image determining module 53
User watches target user's image when the target watches mark attentively attentively as iris recognition image.
A kind of iris recognition image acquiring device is present embodiments provided, can show that gaze identifies first,；Then
It is identified based on the gaze and determines that target watches mark attentively；User is finally watched attentively to the target when target watches mark attentively to use
Family image avoids when directly acquiring user images as iris recognition image as iris recognition image, and iris information may
The technical issues of iris recognition accuracy decline caused by imperfect, the present embodiment carry out iris recognition energy to the iris recognition image
Enough improve iris recognition precision, due to eyeball tracking speed far faster than iris recognition speed, before carrying out iris recognition
The iris recognition image for being most appropriate for iris recognition is first obtained, the time of iris recognition is effectively reduced.
Further, target watches mark determining module 52 attentively, and optimization includes:
The first user images when user watches gaze mark attentively are obtained, and are extracted in first user images
The first shape information of eye；
Determine that target watches mark attentively according to the first shape information.
Further, target watch attentively mark determining module 52 determining that target watches mark attentively according to the first shape information
When, optimization includes:
When the long axis of the first shape information and short axle difference are lower than the first setting value, the gaze is identified
Mark is watched attentively as target；
When the long axis of the first shape information and short axle difference are higher than the first setting value, by the first shape information
The first projection closed loop shape is formed at projection to the gaze home position, and based on the first projection closed loop shape
First straight line where short axle determines that target watches mark attentively.
Further, target watches mark determining module 52 attentively the where the short axle based on the first projection closed loop shape
When one straight line determines that target watches mark attentively, optimization includes:
It is determined based on first straight line where the short axle of the first projection closed loop shape and next watches mark attentively；
It obtains user and watches next second user image when watching mark attentively attentively；
Determine that target watches mark attentively according to corresponding second shape information of eye in the second user image.
Further, target watches mark determining module 52 attentively the where the short axle based on the first projection closed loop shape
One straight line determines next when watching mark attentively, and optimization includes:
The mark for being greater than given threshold with first straight line distance where the short axle of the first projection closed loop shape is chosen to make
Mark is watched attentively to be next.
Further, target is watched mark determining module 52 attentively and is believed according to corresponding second shape of the second user image
When breath determines that target watches mark attentively, optimization includes:
The second user image is fitted, the second shape information for corresponding to the second user image is obtained；
Extract the second shape information of eye in the second user image；
When the long axis of second shape information and short axle difference are lower than the second setting value, next mark is watched attentively for described
It is determined as target and watches mark attentively；
When the long axis of second shape information and short axle difference are higher than the second setting value, by second shape information
Projection to it is described it is next watch attentively at home position formed second projection closed loop shape, and by the first straight line and it is described second throw
The intersection point of second straight line watches mark attentively as target where the short axle of shadow closed loop shape.
Further, device further include: gaze identifies determining module, is used for: the size according to display equipment is true
Determine gaze mark.
Further, gaze identifies determining module, is also used to:
The vertex information of the display equipment is determined according to the size of display equipment；
Determine that gaze identifies based on the vertex information.
Above-mentioned iris recognition image acquiring device can be performed iris recognition image provided by any embodiment of the invention and obtain
Method is taken, has the corresponding functional module of execution method and beneficial effect.
Embodiment six
Fig. 6 is a kind of structural schematic diagram for terminal device that the embodiment of the present invention six provides.As shown in fig. 6, the present invention is real
The terminal device for applying the offer of example six includes: one or more processors 61 and storage device 62；Processor in the terminal device
61 can be one or more, in Fig. 6 by taking a processor 61 as an example；Storage device 62 is for storing one or more programs；
One or more of programs are executed by one or more of processors 61, so that one or more of processors 61 are realized
Iris recognition image as described in any one of embodiment of the present invention determines method.
The terminal device can also include: input unit 63 and output device 64.
Processor 61, storage device 62, input unit 63 and output device 64 in terminal device can by bus or
Other modes connect, in Fig. 6 for being connected by bus.
Storage device 62 in the terminal device is used as a kind of computer readable storage medium, can be used for storing one or more
A program, described program can be software program, computer executable program and module, and such as the embodiment of the present invention one is implemented
Example two, embodiment three and the provided iris recognition image of example IV determine the corresponding program instruction/module of method (for example, attached
Module in iris recognition image determining device shown in fig. 5, comprising: display module 51, target watch mark determining module 52 attentively
With image determining module 53).Software program, instruction and the module that processor 61 is stored in storage device 62 by operation,
Thereby executing the various function application and data processing of terminal device, i.e. iris recognition image in realization above method embodiment
Determine method.
Storage device 62 may include storing program area and storage data area, wherein storing program area can storage program area,
Application program needed at least one function；Storage data area, which can be stored, uses created data etc. according to terminal device.
It can also include nonvolatile memory in addition, storage device 62 may include high-speed random access memory, for example, at least one
A disk memory, flush memory device or other non-volatile solid state memory parts.In some instances, storage device 62 can
It further comprise the memory remotely located relative to processor 61, these remote memories can be by network connection to setting
It is standby.The example of above-mentioned network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Input unit 63 can be used for receiving the number or character information of input, and generate the user setting with terminal device
And the related key signals input of function control, input unit 63 may include image collecting device.Output device 64 may include
Display screen etc. shows equipment and light source.
Also, when one or more included program of above-mentioned terminal device is held by one or more of processors 61
When row, program is proceeded as follows:
Show gaze mark；It is identified based on the gaze and determines that target watches mark attentively；User is watched attentively described
Target user's image when target watches mark attentively is as iris recognition image.
Embodiment seven
The embodiment of the present invention seven provides a kind of computer readable storage medium, is stored thereon with computer program, the journey
Method is determined for executing iris recognition image when sequence is executed by processor, this method comprises:
Show gaze mark；It is identified based on the gaze and determines that target watches mark attentively；User is watched attentively described
Target user's image when target watches mark attentively is as iris recognition image.
Optionally, it can be also used for executing iris provided by any embodiment of the invention when which is executed by processor
Identification image determines method.
The computer storage medium of the embodiment of the present invention, can be using any of one or more computer-readable media
Combination.Computer-readable medium can be computer-readable signal media or computer readable storage medium.It is computer-readable
Storage medium for example may be-but not limited to-the system of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor, device or
Device, or any above combination.The more specific example (non exhaustive list) of computer readable storage medium includes: tool
There are electrical connection, the portable computer diskette, hard disk, random access memory (Random Access of one or more conducting wires
Memory, RAM), read-only memory (Read Only Memory, ROM), erasable programmable read only memory (Erasable
Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable CD-ROM, light storage device, magnetic storage
Device or above-mentioned any appropriate combination.Computer readable storage medium, which can be, any includes or storage program has
Shape medium, the program can be commanded execution system, device or device use or in connection.
Computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited
In: electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can
Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for
By the use of instruction execution system, device or device or program in connection.
The program code for including on computer-readable medium can transmit with any suitable medium, including but not limited to:
Wirelessly, electric wire, optical cable, radio frequency (Radio Frequency, RF) etc. or above-mentioned any appropriate combination.
The computer for executing operation of the present invention can be write with one or more programming languages or combinations thereof
Program code, described program design language include object oriented program language-such as Java, Smalltalk, C++,
It further include conventional procedural programming language-such as " C " language or similar programming language.Program code can be with
It fully executes, partly execute on the user computer on the user computer, being executed as an independent software package, portion
Divide and partially executes or executed on a remote computer or server completely on the remote computer on the user computer.?
Be related in the situation of remote computer, remote computer can pass through the network of any kind --- including local area network (LAN) or
Wide area network (WAN) --- it is connected to subscriber computer, or, it may be connected to outer computer (such as utilize Internet service
Provider is connected by internet).
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (11)
1. a kind of iris recognition image determines method characterized by comprising
Show gaze mark；
It is identified based on the gaze and determines that target watches mark attentively；
User is watched attentively target user's image when the target watches mark attentively as iris recognition image.
2. the method according to claim 1, wherein described identified based on the gaze determines that target is watched attentively
Mark, comprising:
The first user images when user watches gaze mark attentively are obtained, and extract eye in first user images
First shape information；
Determine that target watches mark attentively according to the first shape information.
3. according to the method described in claim 2, it is characterized in that, described determine that target is watched attentively according to the first shape information
Mark, comprising:
When the long axis of the first shape information and short axle difference are lower than the first setting value, the gaze is identified into conduct
Target watches mark attentively；
When the long axis of the first shape information and short axle difference are higher than the first setting value, the first shape information is projected
The first projection closed loop shape, and the short axle based on the first projection closed loop shape are formed to the gaze home position
Place first straight line determines that target watches mark attentively.
4. according to the method described in claim 3, it is characterized in that, the short axle institute based on the first projection closed loop shape
Determine that target watches mark attentively in first straight line, comprising:
It is determined based on first straight line where the short axle of the first projection closed loop shape and next watches mark attentively；
It obtains user and watches next second user image when watching mark attentively attentively；
Determine that target watches mark attentively according to corresponding second shape information of eye in the second user image.
5. according to the method described in claim 4, it is characterized in that, the short axle institute based on the first projection closed loop shape
It is determined in first straight line and next watches mark attentively, comprising:
Under the mark that first straight line distance where choosing the short axle for projecting closed loop shape with described first is greater than given threshold is used as
One watches mark attentively.
6. according to the method described in claim 4, it is characterized in that, described corresponding according to eye in the second user image
Second shape information determines that target watches mark attentively, comprising:
Extract the second shape information of eye in the second user image；
When the long axis of second shape information and short axle difference are lower than the second setting value, next watch mark attentively by described and determine
Mark is watched attentively for target；
When the long axis of second shape information and short axle difference are higher than the second setting value, second shape information is projected
To it is described it is next watch attentively at home position formed second projection closed loop shape, and by the first straight line and it is described second project close
The intersection point of second straight line watches mark attentively as target where the short axle of ring-shaped.
7. according to the method described in claim 2, it is characterized by further comprising:
Determine that gaze identifies according to the size of display equipment.
8. according to the method described in claim 7, the size according to display equipment determines that gaze identifies, comprising:
The vertex information of the display equipment is determined according to the size of display equipment；
Determine that gaze identifies based on the vertex information.
9. a kind of iris recognition image acquiring device characterized by comprising
Display module, for showing that gaze identifies；
Target watches mark determining module attentively, determines that target watches mark attentively for identifying based on the gaze；
Image determining module, for user to be watched to target user's image when the target watches mark attentively attentively as iris recognition figure
Picture.
10. a kind of terminal device characterized by comprising
One or more processors；
Storage device, for storing one or more programs；
When one or more of programs are executed by one or more of processors, so that one or more of processors are real
Now as iris recognition image described in any one of claims 1-8 determines method.
11. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
It is realized when execution as iris recognition image described in any one of claims 1-8 determines method.
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