CN108742512A - Eye imaging method and device - Google Patents
Eye imaging method and device Download PDFInfo
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- CN108742512A CN108742512A CN201810352108.5A CN201810352108A CN108742512A CN 108742512 A CN108742512 A CN 108742512A CN 201810352108 A CN201810352108 A CN 201810352108A CN 108742512 A CN108742512 A CN 108742512A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
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Abstract
The present invention provides a kind of eye imaging method and device, method includes：To the first position of focus lens when acquisition zoom image harvester shoots the angle Gong Yuan pictures that human eye obtains and is imaged；Judge whether the imaging angle of angle Gong Yuan pictures meets preset condition；When angle, Gong Yuan pictures meet preset condition, adjust zoom image harvester to focus lens at a distance from human eye, obtain the second position to focus lens when cornea image and cornea are imaged, adjust zoom image harvester to focus lens at a distance from human eye, to the third place of focus lens when obtaining iris image and iris imaging；Calculate the distance between first position and the second position, obtain the first range information, calculate the distance between first position and the third place, obtain second distance information, alleviating eye imaging process existing in the prior art can not be the completion elsewhere in addition to hospital the problem of, and having reached eye imaging process can be in the technique effect completed elsewhere in addition to hospital.
Description
Technical field
The present invention relates to technical field of imaging, more particularly, to a kind of eye imaging method and device.
Background technology
So-called tele-medicine exactly exchanges the medicinal data for the patient for being separated by two places by information and telecommunication technology
And expertise.Telemedicine Consultation sets up completely new contact between medical expert and patient, keeps patient in situ, former
Hospital is the consultation of doctors of acceptable remote ground expert and treats and nurse under its guidance, when can save doctor and a large amount of patient
Between and money.
When patient wants to carry out the diagnosis and treatment of eye disease by tele-medicine, first have to provide for expert far
Position letter when the image document and iris imaging of location information and iris when image document and the cornea imaging of cornea
Breath.The figure of location information and iris when far the expert on ground can be imaged according to the image document and cornea of cornea in this way
Location information when as data and iris imaging holds a consultation for patient and provides treatment advice.In the prior art, cornea and
The imaging process of iris must be completed inside hospital, and patient will physically go to the imaging that hospital carries out cornea and iris, cause
Eye imaging process can not be the completion elsewhere in addition to hospital the problem of.
Invention content
In view of this, the purpose of the present invention is to provide a kind of eye imaging method and device, to alleviate in the prior art
Existing eye imaging process can not be the completion elsewhere in addition to hospital the technical issues of.
In a first aspect, an embodiment of the present invention provides a kind of eye imaging method, the method is applied to mobile terminal, institute
It states and is provided with zoom image harvester in mobile terminal, method includes：
It focuses when obtaining the angle Gong Yuan pictures and angle Gong edge imaging that the zoom image harvester shooting human eye obtains
The first position of eyeglass；
Judge whether the imaging angle of the angle Gong Yuan pictures meets preset condition；
When the imaging angle of the angle Gong Yuan pictures meets preset condition, pair of the zoom image harvester is adjusted
The distance between focus lens and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to focus lens
The second position, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain image
To the third place of focus lens when the maximum iris image of clarity and iris imaging；
The distance between the first position and the second position are calculated, obtains the first range information, and calculate institute
The distance between first position and the third place are stated, second distance information is obtained.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein also
Including：
Judge whether the clarity of the cornea image and the iris image meets preset first condition respectively；
When the clarity of the cornea image meets the first condition, preserve the cornea image and described first away from
From information；
And/or when the clarity of the iris image meets the first condition, the iris image and described is preserved
Second distance information.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein also
Including：
The mobile terminal for obtaining the zoom image harvester acquisition is presently in the light information of environment；
Judge whether the light information is more than preset light threshold value；
When the light information is less than the light threshold value, the flash lamp of the mobile terminal is opened.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiments of first aspect, wherein institute
It states and judges whether the imaging angle of the angle Gong Yuan pictures meets preset condition, including：
The edge image for extracting the angle Gong Yuan pictures obtains angle Gong Yuan edge images；
The line segment for connecting arbitrary point-to-point transmission on the angle Gong Yuan edge images, obtains multiple connecting line segments；
In multiple connecting line segments, the length value and length longest line segment of the longest line segment of length are determined
Midpoint；
When the distance of the point on the angle Gong Yuan edge images to the midpoint is equal to the ratio of the point of length value described in half
When example is more than predetermined threshold value, it is determined that the imaging angle of the angle Gong Yuan pictures meets preset condition.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiments of first aspect, wherein institute
Stating zoom image harvester includes：Single zoom camera；
It is described when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjust the zoom image harvester
To the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and when cornea is imaged focus mirror
The second position of piece, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain
To the third place of focus lens when the maximum iris image of image definition and iris imaging, including：
When the imaging angle of the angle Gong Yuan pictures meets preset condition, the focusing mirror of single zoom camera is adjusted
The distance between piece and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to the second of focus lens
Position；
Adjust single zoom camera to the distance between focus lens and the human eye, it is maximum to obtain image definition
Iris image and iris imaging when to the third places of focus lens.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein institute
Stating zoom image harvester includes：Double zoom cameras；Double zoom cameras include：First zoom camera and second
Zoom camera；
It is described when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjust the zoom image harvester
To the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and when cornea is imaged focus mirror
The second position of piece, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain
To the third place of focus lens when the maximum iris image of image definition and iris imaging, including：
When the imaging angle of the angle Gong Yuan pictures meets preset condition, the focusing of first zoom camera is adjusted
The distance between eyeglass and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to the of focus lens
Two positions；
Adjust second zoom camera to the distance between focus lens and the human eye, obtain image definition most
To the third place of focus lens when big iris image and iris imaging.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of first aspect, wherein institute
Stating zoom image harvester includes：Three zoom cameras；
The method further includes：When the imaging angle of the angle Gong Yuan pictures meets preset condition, the zoom is adjusted
Image collecting device to the distance between focus lens and the human eye, obtain the maximum crystalline lens image of image definition and crystalline substance
To the 4th position of focus lens when shape body is imaged；
The distance between the first position and the 4th position are calculated, third range information is obtained.
With reference to first aspect, an embodiment of the present invention provides the 7th kind of possible embodiments of first aspect, wherein sentences
Whether the clarity of the disconnected cornea image meets preset first condition, including：
Obtain the gray value of each pixel in the cornea image；
Using preset Brenner gradient method, two of any row arbitrarily two units of difference in the cornea image are calculated
First difference side's summation of the gray value of a pixel；
When first difference side summation is more than preset first reference threshold, it is determined that the clarity of the cornea image
Meet the first condition.
With reference to first aspect, an embodiment of the present invention provides the 8th kind of possible embodiments of first aspect, wherein sentences
Whether the clarity of the disconnected iris image meets preset first condition, including：
Obtain the gray value of each pixel in the iris image；
Using the Brenner gradient method, two of any row arbitrarily two units of difference in the iris image are calculated
Second difference side's summation of the gray value of pixel；
When second difference side summation is more than preset second reference threshold, it is determined that the clarity of the iris image
Meet the first condition.
Second aspect, the embodiment of the present invention also provide a kind of eye imaging devices, including：Acquisition module, judgment module, at
As module and computing module；
The acquisition module, for obtaining the angle Gong Yuan pictures and angle Gong that zoom image harvester shooting human eye obtains
To the first position of focus lens when edge imaging；
The judgment module, for judging whether the imaging angle of the angle Gong Yuan pictures meets preset condition；
The image-forming module, for when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjusting the change
Burnt image collecting device to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and angle
To the second positions of focus lens when film is imaged, and, adjust the zoom image harvester to focus lens and the human eye
The distance between, to the third place of focus lens when obtaining the maximum iris image of image definition and iris imaging；
The computing module, for calculating the distance between the first position and the second position, obtain first away from
From information, and the distance between the first position and the third place are calculated, obtains second distance information.
The embodiment of the present invention brings following advantageous effect：Eye imaging method provided in an embodiment of the present invention is applied to move
Terminal is moved, is provided with zoom image harvester in the mobile terminal, method includes：Obtain the zoom image harvester
To the first position of focus lens when angle Gong Yuan pictures and angle Gong edge imaging that shooting human eye obtains；Judge the angle Gong Yuan pictures
Imaging angle whether meet preset condition；When the imaging angle of the angle Gong Yuan pictures meets preset condition, described in adjusting
Zoom image harvester to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and
To the second positions of focus lens when cornea is imaged, and, adjust the zoom image harvester to focus lens and the people
The distance between eye, to the third place of focus lens when obtaining the maximum iris image of image definition and iris imaging；It calculates
The distance between the first position and the second position, obtain the first range information, and calculate the first position and
The distance between described the third place obtains second distance information.
So when patient wants to carry out the diagnosis and treatment of eye disease by tele-medicine, it can be by being set in mobile terminal
The zoom image harvester set obtains the angle Gong Yuan pictures that the zoom image harvester shooting human eye obtains and angle is consolidated
To the first position of focus lens when edge imaging, then judge whether the imaging angle of the angle Gong Yuan pictures meets preset condition,
When the imaging angle of the angle Gong Yuan pictures meets preset condition, adjust the zoom image harvester to focus lens with
The distance between described human eye obtains the second to focus lens when the maximum cornea image of image definition and cornea are imaged
Set, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain image definition
To the third place of focus lens when maximum iris image and iris imaging, cornea image and iris image have thus been obtained,
The distance between the first position and the second position are finally calculated, obtains the first range information, and calculates described the
The distance between one position and the third place, obtain second distance information, have thus obtained corresponding with cornea image
First range information and second distance information corresponding with iris image, patient can be by cornea images, corresponding with cornea image
The first range information, iris image, and second distance information corresponding with iris image is sent to expert far, far
Expert can be according to the cornea image received, the first range information corresponding with cornea image, iris image, Yi Jiyu
The corresponding second distance information of iris image is that patient holds a consultation and provides treatment advice, and avoiding patient will physically go to
Hospital carries out cornea and the problem of iris imaging, alleviate eye imaging process existing in the prior art can not except hospital it
The problem of outer completion elsewhere, having reached eye imaging process can be in the technology completed elsewhere in addition to hospital
Effect improves the convenience and efficiency of eye imaging process.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the flow chart of eye imaging method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of step S102 in Fig. 1；
Fig. 3 is the first flow chart of step S103 in Fig. 1；
Fig. 4 is second of flow chart of step S103 in Fig. 1.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Currently, so-called tele-medicine, exactly faces by information and telecommunication technology to exchange the medical treatment for the patient for being separated by two places
Bed data and expertise.Telemedicine Consultation sets up completely new contact between medical expert and patient, and patient is made to exist
Original place, former hospital are the consultation of doctors of acceptable remote ground expert and treat and nurse under its guidance, can save doctor and disease
Time and money is measured by the National People's Congress.
When patient wants to carry out the diagnosis and treatment of eye disease by tele-medicine, first have to provide for expert far
Position letter when the image document and iris imaging of location information and iris when image document and the cornea imaging of cornea
Breath.The figure of location information and iris when far the expert on ground can be imaged according to the image document and cornea of cornea in this way
Location information when as data and iris imaging holds a consultation for patient and provides treatment advice.In the prior art, cornea and
The imaging process of iris must be completed inside hospital, and patient will physically go to the imaging that hospital carries out cornea and iris, cause
Eye imaging process can not be based on this completion elsewhere in addition to hospital the problem of, provided in an embodiment of the present invention
A kind of eye imaging method and device, can alleviate eye imaging process existing in the prior art can not be in addition to hospital
The technical issues of completing elsewhere.
For ease of understanding the present embodiment, first to a kind of eye imaging method disclosed in the embodiment of the present invention into
Row is discussed in detail, and the method is applied to mobile terminal, and zoom image harvester, such as Fig. 1 are provided in the mobile terminal
Shown, the eye imaging method may comprise steps of.
Illustratively, the mobile terminal can be slit lamp photography system.
Illustratively, the zoom image harvester can be single zoom camera, can also be double zoom cameras,
Can also be three zoom cameras.
Step S101, obtain angle Gong Yuan pictures that zoom image harvester shooting human eye obtains and angle Gong Yuan at
As when to the first positions of focus lens.
Illustratively, it since the angle positions Gong Yuan of human eye are readily identified, is adopted so obtaining the zoom image first
The angle Gong Yuan pictures that acquisition means shooting human eye obtains.Using obtained angle Gong Yuan pictures come judge human eye imaging angle whether be
Suitably.
Step S102, judges whether the imaging angle of the angle Gong Yuan pictures meets preset condition.
Illustratively, as shown in Fig. 2, step S102 may comprise steps of.
Step S201 extracts the edge image of the angle Gong Yuan pictures, obtains angle Gong Yuan edge images.
Step S202 connects the line segment of arbitrary point-to-point transmission on the angle Gong Yuan edge images, obtains multiple connecting line segments.
Step S203 determines the length value and length longest of the longest line segment of length in multiple connecting line segments
Line segment midpoint.
Step S204, when the distance of the point on the angle Gong Yuan edge images to the midpoint is equal to length value described in half
Point ratio be more than predetermined threshold value when, it is determined that the imaging angle of the angle Gong Yuan pictures meets preset condition.
Illustratively, the predetermined threshold value can be 90%, can be either 95% or can be 98%.With default
Threshold value is illustrated for 95%.When the distance of the point on the angle Gong Yuan edge images to the midpoint is equal to described in half
When the ratio of the point of length value is more than 95%, it is determined that the imaging angle of the angle Gong Yuan pictures meets preset condition.At this time may be used
To continue to carry out cornea imaging and iris imaging with existing imaging angle.
Step S103 adjusts the zoom image and adopts when the imaging angle of the angle Gong Yuan pictures meets preset condition
Acquisition means to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and when cornea is imaged
To the second position of focus lens, and, adjust the zoom image harvester between focus lens and the human eye away from
From to the third place of focus lens when obtaining the maximum iris image of image definition and iris imaging.
Illustratively, the zoom image harvester includes：Single zoom camera, as shown in figure 3, step S103 can be with
Include the following steps.
Step S301 adjusts single zoom camera when the imaging angle of the angle Gong Yuan pictures meets preset condition
Head to the distance between focus lens and the human eye, obtain focusing when the maximum cornea image of image definition and cornea imaging
The second position of eyeglass.
Illustratively, adjust single zoom camera to focus lens between the human eye at a distance from process
In, can first according to the first pre-determined distance to the direction far from human eye move single zoom camera to focus lens, then
It adjusts again described to the distance between focus lens and the human eye, obtains the maximum cornea image of image definition and cornea imaging
When to the second positions of focus lens.First pre-determined distance can be 3 millimeters.Under normal circumstances, the angle Gong Yuan of human eye and angle
The distance between film is 3 millimeters.This have the effect that can improve the efficiency of cornea imaging process.
Step S302, adjust single zoom camera to the distance between focus lens and the human eye, obtain image
To the third place of focus lens when the maximum iris image of clarity and iris imaging.
Illustratively, adjust single zoom camera to focus lens between the human eye at a distance from process
In, can the first position first be moved to focus lens by described, then according to the second pre-determined distance to close to the side of human eye
To movement single zoom camera to focus lens, finally adjust again it is described to the distance between focus lens and the human eye,
To the third place of focus lens when obtaining the maximum iris image of image definition and iris imaging.Second pre-determined distance can
To be 0.5 millimeter.Under normal circumstances, the distance between the angle Gong Yuan of human eye and iris are 0.5 millimeter.This have the effect that,
The efficiency of iris imaging process can be improved.
Illustratively, the zoom image harvester includes：Double zoom cameras；Double zoom cameras include：
First zoom camera and the second zoom camera, as shown in figure 4, step S103 may comprise steps of.
Step S401 adjusts first zoom and takes the photograph when the imaging angle of the angle Gong Yuan pictures meets preset condition
As head is to the distance between focus lens and the human eye, the maximum cornea image of image definition is obtained and when cornea is imaged pair
The second position of focus lens.
Illustratively, adjust first zoom camera to focus lens between the human eye at a distance from process
In, can first according to the first pre-determined distance to far from human eye direction move first zoom camera to focus lens, so
Adjust again afterwards it is described to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and cornea at
As when to the second positions of focus lens.First pre-determined distance can be 3 millimeters.
Step S402, adjust second zoom camera to the distance between focus lens and the human eye, obtain figure
To the third place of focus lens when the maximum iris image of image sharpness and iris imaging.
Illustratively, adjust second zoom camera to focus lens between the human eye at a distance from process
In, can first according to the second pre-determined distance to close to human eye direction move second zoom camera to focus lens, so
Adjust again afterwards it is described to the distance between focus lens and the human eye, obtain the maximum iris image of image definition and iris at
As when to the third places of focus lens.Second pre-determined distance can be 0.5 millimeter.
Illustratively, the zoom image harvester includes：Three zoom cameras, the method further include：When described
When the imaging angle of angle Gong Yuan pictures meets preset condition, adjust the zoom image harvester to focus lens and the people
The distance between eye obtains the 4th position to focus lens when the maximum crystalline lens image of image definition and crystalline lens are imaged；
The distance between the first position and the 4th position are calculated, third range information is obtained.
Illustratively, the crystalline lens image can be crystalline body front surface image, anterior lens capsule film image, artificial crystalline substance
The apparent apparent muddy area of muddy area's image, intraocular lens of shape body front surface image, intraocular lens' anterior capsule image, crystalline lens
Capsule after image, crystalline lens rear surface image, intraocular lens' rear surface image, posterior lens capsule film image or intraocular lens
Film image.
Step S104 calculates the distance between the first position and the second position, obtains the first range information, with
And the distance between the first position and the third place are calculated, obtain second distance information.
Illustratively, far the expert on ground is that patient holds a consultation and provides treatment advice, has both needed the cornea figure of patient
Picture and iris image, but need patient's and corresponding first range information of cornea image and corresponding with iris image second away from
From information.
Illustratively, far the expert on ground is that patient holds a consultation and provides treatment advice, has both needed the cornea figure of patient
Picture, iris image and crystalline lens image, and need the first range information corresponding with cornea image and iris image pair of patient
The second distance information answered and third range information corresponding with crystalline lens image.
Illustratively, since the eye imaging method can obtain multiple images simultaneously, so improving the effect of photograph
Rate is suitble to a wide range of and basic hospital popularization.
Illustratively, the embodiment of the present invention, which can solve anterior ocular segment slit lamp photography system single, can only obtain an eyeball
The problem of image at position, improves the speed of anterior ocular segment slit lamp photography, improves the efficiency of photograph.
In the embodiment of the present invention, eye imaging method provided in an embodiment of the present invention is applied to mobile terminal, the movement
Zoom image harvester is provided in terminal, method includes：Obtain what the zoom image harvester shooting human eye obtained
To the first position of focus lens when angle Gong Yuan pictures and angle Gong edge imaging；Judge the angle Gong Yuan pictures imaging angle whether
Meet preset condition；When the imaging angle of the angle Gong Yuan pictures meets preset condition, the zoom image acquisition dress is adjusted
Set to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and when cornea is imaged focus
The second position of eyeglass, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain
To when the maximum iris image of image definition and iris imaging to the third place of focus lens；Calculate the first position and institute
The distance between second position is stated, obtains the first range information, and calculate between the first position and the third place
Distance, obtain second distance information.
So when patient wants to carry out the diagnosis and treatment of eye disease by tele-medicine, it can be by being set in mobile terminal
The zoom image harvester set obtains the angle Gong Yuan pictures that the zoom image harvester shooting human eye obtains and angle is consolidated
To the first position of focus lens when edge imaging, then judge whether the imaging angle of the angle Gong Yuan pictures meets preset condition,
When the imaging angle of the angle Gong Yuan pictures meets preset condition, adjust the zoom image harvester to focus lens with
The distance between described human eye obtains the second to focus lens when the maximum cornea image of image definition and cornea are imaged
Set, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain image definition
To the third place of focus lens when maximum iris image and iris imaging, cornea image and iris image have thus been obtained,
The distance between the first position and the second position are finally calculated, obtains the first range information, and calculates described the
The distance between one position and the third place, obtain second distance information, have thus obtained corresponding with cornea image
First range information and second distance information corresponding with iris image, patient can be by cornea images, corresponding with cornea image
The first range information, iris image, and second distance information corresponding with iris image is sent to expert far, far
Expert can be according to the cornea image received, the first range information corresponding with cornea image, iris image, Yi Jiyu
The corresponding second distance information of iris image is that patient holds a consultation and provides treatment advice, and avoiding patient will physically go to
Hospital carries out cornea and the problem of iris imaging, alleviate eye imaging process existing in the prior art can not except hospital it
The problem of outer completion elsewhere, having reached eye imaging process can be in the technology completed elsewhere in addition to hospital
Effect improves the convenience and efficiency of eye imaging process.
In another embodiment of the present invention, the eye imaging method can also include the following steps.
Judge whether the clarity of the cornea image and the iris image meets preset first condition respectively.
Illustratively, judge whether the clarity of the cornea image meets preset first condition, may include following
Step.
Obtain the gray value of each pixel in the cornea image.
Using preset Brenner gradient method, two of any row arbitrarily two units of difference in the cornea image are calculated
First difference side's summation of the gray value of a pixel.
When first difference side summation is more than preset first reference threshold, it is determined that the clarity of the cornea image
Meet the first condition.
Illustratively, the accuracy of the Brenner gradient method depends on the selection of first reference threshold.Described
One reference threshold can be determined according to multiple preset cornea images.
Illustratively, judge whether the clarity of the iris image meets preset first condition, may include following
Step.
Obtain the gray value of each pixel in the iris image.
Using the Brenner gradient method, two of any row arbitrarily two units of difference in the iris image are calculated
Second difference side's summation of the gray value of pixel.
When second difference side summation is more than preset second reference threshold, it is determined that the clarity of the iris image
Meet the first condition.
Illustratively, the accuracy of the Brenner gradient method depends on the selection of second reference threshold.Described
Two reference thresholds can be determined according to multiple preset iris images.
When the clarity of the cornea image meets the first condition, preserve the cornea image and described first away from
From information.
And/or when the clarity of the iris image meets the first condition, the iris image and described is preserved
Second distance information.
In the embodiment of the present invention, when the clarity of the cornea image meets the first condition, then the angle is preserved
Film image and first range information, otherwise continue cornea imaging process.This ensure that the clarity of cornea image.
When the clarity of the iris image meets the first condition, then the iris image and second distance letter are preserved
Breath, otherwise continues iris imaging process.This ensure that the clarity of iris image.
In another embodiment of the present invention, the eye imaging method can also include the following steps.
The mobile terminal for obtaining the zoom image harvester acquisition is presently in the light information of environment.
Judge whether the light information is more than preset light threshold value.
When the light information is less than the light threshold value, the flash lamp of the mobile terminal is opened.
In the embodiment of the present invention, when the light information that the mobile terminal is presently in environment is inadequate, i.e., the described light
When line information is less than the light threshold value, then the flash lamp of the mobile terminal is opened, can ensure the zoom figure in this way
As the clarity for the picture that harvester is shot.
In another embodiment of the present invention, a kind of eye imaging devices disclosed in the embodiment of the present invention are carried out detailed
It introduces, including：Acquisition module, judgment module, image-forming module and computing module；
The acquisition module, for obtaining the angle Gong Yuan pictures and angle Gong that zoom image harvester shooting human eye obtains
To the first position of focus lens when edge imaging；
The judgment module, for judging whether the imaging angle of the angle Gong Yuan pictures meets preset condition；
The image-forming module, for when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjusting the change
Burnt image collecting device to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and angle
To the second positions of focus lens when film is imaged, and, adjust the zoom image harvester to focus lens and the human eye
The distance between, to the third place of focus lens when obtaining the maximum iris image of image definition and iris imaging；
The computing module, for calculating the distance between the first position and the second position, obtain first away from
From information, and the distance between the first position and the third place are calculated, obtains second distance information.
In another embodiment of the present invention, to disclosed in the embodiment of the present invention it is a kind of with processor can perform it is non-
The computer-readable medium of volatile program code describes in detail, and said program code makes the processor execute above-mentioned reality
Apply any method of example.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
The technique effect and preceding method embodiment phase of the device that the embodiment of the present invention is provided, realization principle and generation
Together, to briefly describe, device embodiment part does not refer to place, can refer to corresponding contents in preceding method embodiment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustrative, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
Flow chart and block diagram in attached drawing show the system, method and computer journey of multiple embodiments according to the present invention
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part for a part for one module, section or code of table, the module, section or code includes one or more uses
The executable instruction of the logic function as defined in realization.It should also be noted that in some implementations as replacements, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can essentially base
Originally it is performed in parallel, they can also be executed in the opposite order sometimes, this is depended on the functions involved.It is also noted that
It is the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can uses and execute rule
The dedicated hardware based system of fixed function or action is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
The computer program product for the progress eye imaging method that the embodiment of the present invention is provided, including store processor
The computer readable storage medium of executable non-volatile program code, the instruction that said program code includes can be used for executing
Method described in previous methods embodiment, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer read/write memory medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of step of method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
Store the medium of program code.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of eye imaging method, which is characterized in that the method is applied to mobile terminal, is provided in the mobile terminal
Zoom image harvester, method include：
To focus lens when obtaining the angle Gong Yuan pictures and angle Gong edge imaging that the zoom image harvester shooting human eye obtains
First position；
Judge whether the imaging angle of the angle Gong Yuan pictures meets preset condition；
When the imaging angle of the angle Gong Yuan pictures meets preset condition, the focusing mirror of the zoom image harvester is adjusted
The distance between piece and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to the second of focus lens
Position, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain image clearly
To the third place of focus lens when spending maximum iris image and iris imaging；
The distance between the first position and the second position are calculated, obtains the first range information, and calculates described the
The distance between one position and the third place obtain second distance information.
2. eye imaging method according to claim 1, which is characterized in that further include：
Judge whether the clarity of the cornea image and the iris image meets preset first condition respectively；
When the clarity of the cornea image meets the first condition, the cornea image and the first distance letter are preserved
Breath；
And/or when the clarity of the iris image meets the first condition, preserve the iris image and described second
Range information.
3. eye imaging method according to claim 2, which is characterized in that further include：
The mobile terminal for obtaining the zoom image harvester acquisition is presently in the light information of environment；
Judge whether the light information is more than preset light threshold value；
When the light information is less than the light threshold value, the flash lamp of the mobile terminal is opened.
4. eye imaging method according to claim 3, which is characterized in that the imaging for judging the angle Gong Yuan pictures
Whether angle meets preset condition, including：
The edge image for extracting the angle Gong Yuan pictures obtains angle Gong Yuan edge images；
The line segment for connecting arbitrary point-to-point transmission on the angle Gong Yuan edge images, obtains multiple connecting line segments；
In multiple connecting line segments, the length value of the longest line segment of length and the midpoint of the longest line segment of length are determined；
When the ratio that the distance of the point on the angle Gong Yuan edge images to the midpoint is equal to the point of length value described in half is super
When crossing predetermined threshold value, it is determined that the imaging angle of the angle Gong Yuan pictures meets preset condition.
5. eye imaging method according to claim 4, which is characterized in that the zoom image harvester includes：It is single
Zoom camera；
It is described when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjust pair of the zoom image harvester
The distance between focus lens and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to focus lens
The second position, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain image
To the third place of focus lens when the maximum iris image of clarity and iris imaging, including：
When the imaging angle of the angle Gong Yuan pictures meets the preset condition, the focusing mirror of single zoom camera is adjusted
The distance between piece and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to described in focus lens
The second position；
Adjust single zoom camera to the distance between focus lens and the human eye, obtain the maximum rainbow of image definition
To the third place of focus lens when film image and iris imaging.
6. eye imaging method according to claim 4, which is characterized in that the zoom image harvester includes：It is double
Zoom camera；Double zoom cameras include：First zoom camera and the second zoom camera；
It is described when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjust pair of the zoom image harvester
The distance between focus lens and the human eye obtain when the maximum cornea image of image definition and cornea are imaged to focus lens
The second position, and, adjust the zoom image harvester to the distance between focus lens and the human eye, obtain image
To the third place of focus lens when the maximum iris image of clarity and iris imaging, including：
When the imaging angle of the angle Gong Yuan pictures meets the preset condition, the focusing of first zoom camera is adjusted
The distance between eyeglass and the human eye obtain the institute to focus lens when the maximum cornea image of image definition and cornea are imaged
State the second position；
Adjust second zoom camera to the distance between focus lens and the human eye, it is maximum to obtain image definition
To the third place of focus lens when iris image and iris imaging.
7. eye imaging method according to claim 6, which is characterized in that the zoom image harvester includes：Three
Zoom camera；
The method further includes：When the imaging angle of the angle Gong Yuan pictures meets the preset condition, the zoom is adjusted
Image collecting device to the distance between focus lens and the human eye, obtain the maximum crystalline lens image of image definition and crystalline substance
To the 4th position of focus lens when shape body is imaged；
The distance between the first position and the 4th position are calculated, third range information is obtained.
8. eye imaging method according to claim 7, which is characterized in that judge the cornea image clarity whether
Meet preset first condition, including：
Obtain the gray value of each pixel in the cornea image；
Using preset Brenner gradient method, two pictures of any row arbitrarily two units of difference in the cornea image are calculated
First difference side's summation of the gray value of vegetarian refreshments；
When first difference side summation is more than preset first reference threshold, it is determined that the clarity of the cornea image meets
The first condition.
9. eye imaging method according to claim 8, which is characterized in that judge the iris image clarity whether
Meet preset first condition, including：
Obtain the gray value of each pixel in the iris image；
Using the Brenner gradient method, two pixels of any row arbitrarily two units of difference in the iris image are calculated
Second difference side's summation of the gray value of point；
When second difference side summation is more than preset second reference threshold, it is determined that the clarity of the iris image meets
The first condition.
10. a kind of eye imaging devices, which is characterized in that including：Acquisition module, judgment module, image-forming module and computing module；
The acquisition module, for obtain the zoom image harvester obtained angle Gong Yuan pictures of shooting human eye and angle Gong Yuan at
As when to the first positions of focus lens；
The judgment module, for judging whether the imaging angle of the angle Gong Yuan pictures meets preset condition；
The image-forming module, for when the imaging angle of the angle Gong Yuan pictures meets preset condition, adjusting the zoom figure
As harvester is to the distance between focus lens and the human eye, obtain the maximum cornea image of image definition and cornea at
As when to the second positions of focus lens, and, adjust the zoom image harvester between focus lens and the human eye
Distance, to the third place of focus lens when obtaining the maximum iris image of image definition and iris imaging；
The computing module obtains the first distance letter for calculating the distance between the first position and the second position
Breath, and the distance between the first position and the third place are calculated, obtain second distance information.
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| CN114931353A (en) * | 2022-04-18 | 2022-08-23 | 中山大学中山眼科中心 | Convenient and fast contrast sensitivity detection system |
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| CN108742512B (en) | 2020-10-27 |
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