CN106419830A - Method for measuring diameters of pupils - Google Patents
Method for measuring diameters of pupils Download PDFInfo
- Publication number
- CN106419830A CN106419830A CN201610989360.8A CN201610989360A CN106419830A CN 106419830 A CN106419830 A CN 106419830A CN 201610989360 A CN201610989360 A CN 201610989360A CN 106419830 A CN106419830 A CN 106419830A
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- China
- Prior art keywords
- pupil
- iris
- diameter
- image processing
- processing unit
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Classifications
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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
- A61B3/11—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring interpupillary distance or diameter of pupils
- A61B3/112—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring interpupillary distance or diameter of pupils for measuring diameter of pupils
-
- 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
- A61B3/0016—Operational features thereof
Abstract
The invention provides a method for measuring the diameters of pupils. The method includes acquiring digital images of eyeballs by the aid of an image detection unit; transmitting the digital images to an image processing unit; computing pupil/iris diameter ratios by the aid of the image processing unit; multiplying the pupil/iris diameter ratios by the diameters of irises to compute the diameters of the pupils. The method for measuring the diameters of the pupils has the advantage that the diameters of the pupils can be accurately, conveniently and repeatedly measured and computed on the basis of the ratios of the pupils to the irises.
Description
Technical field
The present invention relates to image detection and treatment technology, more particularly, to a kind of pupil diameter measuring method.
Background technology
The eyes are the windows of the mind, and the external information that the mankind there are about 80% is obtained by eyes.Pupil, be animal or
The small sircle hole at iris center in eyes, is the passage that light enters eyes.On iris, smooth muscle is flexible, can make the mouth of pupil
Footpath zooms in or out, and controls the light quantity entering pupil.The crowd of ocular movemeut obstacle, not only daily life quality is by serious shadow
Ring, and how cannot be engaged in decent work, all bring and have a strong impact on to family, social labor power resource.
At present, with the continuous progress of science and technology and medical level, show, objective quantitative pupil detection is got over through research
More to be applied to each different directions.
The departments such as industry, traffic, transport use instrument for examining pupil can effectively evaluation work person or driver degree of fatigue
(fatigue driving) or whether drive when intoxicated, contribute to the generation reducing related accidents and colliding after drinking, and work can be improved
The safety in place and increase work efficiency.
Medically, the big I of measurement pupil tentatively judges the change of patient's intracranial pressure, indirectly reflection patients' neural's system
The weight of illness and lapsing to.Survey the method for pupil at this stage it is simply that doctor takes chi be aligned patient's eyeball to measure, need two people
Cooperation, and data is not smart, and patient is also uncomfortable.Therefore, clinically pass through range estimation or ruler or pupil ratio the measurement of pupil more
Chi is measured, test subject vision, subjective judgment impact are too big.Therefore in clinical position, doctor passes through range estimation, knot mostly
Fruit is very inaccurate.
Therefore, it is badly in need of a kind of measuring method that is easy, more accurately and fast reflecting or calculate pupil diameter and diameter change
Use for daily or medical science.
Content of the invention
In order to solve the not accurate defect of pupil diameter measuring method in prior art, according to a side of the present invention
A kind of face, there is provided pupil diameter measuring method.
In this pupil diameter measuring method, comprise the following steps：With image detecting element, digital picture is gathered to eyeball；
By described Digital Image Transmission to graphics processing unit；Calculate pupil/iris diameter ratio using described image processing unit；With
And be multiplied by iris diameter to calculate described pupil diameter by described pupil/iris diameter ratio.
In the above-mentioned methods, described image detector unit is to have the shooting instrument of light source.
In the above-mentioned methods, described shooting instrument includes cmos camera or ccd video camera, and certain present invention is not restricted to
This, shooting instrument can also include other kinds of video camera.
In the above-mentioned methods, described image detector unit and described image processing unit are electronic intelligence equipment, and institute
State electronic intelligence equipment and include notebook computer or smart mobile phone.
In the above-mentioned methods, described image processing unit includes Digital Image Processing program.
In the above-mentioned methods, enter one using the step that described image processing unit calculates described pupil/iris diameter ratio
Step includes：Using Digital Image Processing program, circle is carried out to the profile of iris and pupil respectively according to the color of image and gray scale
Fixed, and calculate described pupil/iris diameter ratio.
In the above-mentioned methods, before the step of described digital picture being gathered to eyeball with described image detector unit, also
Including：Under light source, iris diameter is measured by ruler or other survey tools.
After calculate the step of pupil/iris diameter ratio using described image processing unit, and by described pupil
Before hole/iris diameter is than the step being multiplied by iris diameter and calculating described pupil diameter, also include：Pass through ruler under light source
Or other survey tools are measuring iris diameter.
In the above-mentioned methods, when not carrying out iris measurement, described iris diameter is defaulted as state human iris diameter average, and
And described state human iris diameter average is 11.4mm.
In the present invention, based on the stage of growth in people, from 8 months to one-tenth human iris' diameter almost stable, and
Iris is minimum in the interindividual variation of adult, and average is this discovery of 11.4mm, so that pupil and the ratio of iris is become very
Meaningful, based on this ratio, can simply be conveniently used for calculating pupil diameter.
Meanwhile, in today's society, APP is widely used in the social life of the mankind.Therefore, steady according to iris diameter
Qualitative, by smart mobile phone, eyeball can be taken pictures, then be calculated the ratio of pupil and iris by the APP with Digital Image Processing program
Value, is then multiplied by state human iris diameter average or the individual iris diameter of measurement just can draw the straight of tested person's pupil at that time
Footpath.It is noted that after mobile phone photograph, APP can calculate pupil diameter (black region), iris diameter (yellow region) automatically.
In addition, the ratio of pupil and iris can also be used for the change of the same individual pupil of dynamic reflection, therefore, it can move
The pupil diameter change of state monitoring same individuality different time, does not still lose measurement its meaning of pupil diameter.
Additionally, critical neurosurgery medical worker can also hand dipping iris size first, data input APP meter
Calculate pupil diameter, repeated measure, the data drawing is more accurate.
Brief description
The flow chart that Fig. 1 shows pupil diameter measuring method according to an embodiment of the invention.
Specific embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that being retouched
The embodiment stated is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this
The every other embodiment that field those of ordinary skill is obtained, broadly falls into the scope of protection of the invention.
Fig. 1 is the flow chart of pupil diameter measuring method according to an embodiment of the invention.As shown in figure 1, the present invention carries
For pupil diameter measuring method comprise the following steps：S102：With image detecting element, digital picture is gathered to eyeball；S104：
By described Digital Image Transmission to graphics processing unit, wherein, graphics processing unit includes Digital Image Processing program；S106：
Calculate pupil/iris diameter ratio using described image processing unit；And S108：Described pupil/iris diameter ratio is multiplied by
Iris diameter is calculating described pupil diameter.Wherein it is possible to before step S102, pass through ruler or other surveys under light source
Amount instrument is measuring iris diameter；Or after step s 106, surveyed by ruler or other survey tools under light source
Amount iris diameter, is then carrying out step S108；When not carrying out iris measurement, it is equal that iris diameter is defaulted as state's human iris' diameter
Value, and state human iris diameter average is 11.4mm.
Embodiment 1
Tested person is carried out with single or pupil/iris diameter ratio or rough calculation pupil diameter are calculated in interruption timing：Tested person puts down
Bed confined to bed, tester stands in rostral towards tested person.Gently touched with left hand and pull open tested person's branch hole to be checked eyelid, with having light source
Shooting instrument to eyeball gather digital picture, be transferred to Digital Image Processing program.Digital Image Processing program is according to image
Color and gray scale respectively the profile of iris and pupil is bound, calculate pupil/iris diameter ratio, and can be according to formula
Rough calculation pupil diameter=state human iris diameter average (11.4mm) × (pupil/iris diameter ratio).It is right that tester can be interrupted timing
Tested person is calculated again.
Embodiment 2
Tested person is carried out with single or pupil/iris diameter ratio or actuarial pupil diameter are calculated in interruption timing：Tested person puts down
Bed confined to bed, tester stands in rostral towards tested person.Gently touched with left hand and pull open tested person's branch hole to be checked eyelid, survey under light source
Amount iris diameter (D)；Then the shooting instrument with having light source gathers digital picture to eyeball, is transferred to Digital Image Processing journey
Sequence.Digital Image Processing program is bound to the profile of iris and pupil respectively according to the color of image and gray scale, calculates
Pupil/iris diameter ratio, and can be according to formula actuarial pupil diameter=iris diameter (D) × (pupil/iris diameter ratio).Interruption
When Timing measurement pupil/iris diameter ratio or actuarial pupil diameter, do not need to repeat iris Diameter Measurement Procedure, can be directly entered
Eyeball digital image acquisition link, the profile of iris and pupil is defined in Digital Image Processing, calculates pupil/iris diameter when pupil
Bore dia, wherein, a diameter of baseline measurement of iris used..
The pupil diameter measuring method being provided according to the present invention, based on the ratio of pupil and iris, can accurately facilitate
Ground is used for repeated measure pupil diameter.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of pupil diameter measuring method, including：
With image detecting element, digital picture is gathered to eyeball；
By described Digital Image Transmission to graphics processing unit；
Calculate pupil/iris diameter ratio using described image processing unit；And
Described pupil/iris diameter ratio is multiplied by iris diameter to calculate described pupil diameter.
2. method according to claim 1, wherein, described image detector unit is to have the shooting instrument of light source.
3. method according to claim 2, wherein, described shooting instrument is cmos camera or ccd video camera.
4. method according to claim 1, wherein, described image detector unit and described image processing unit are electronics intelligence
Energy equipment, and described electronic intelligence equipment includes notebook computer or smart mobile phone.
5. method according to claim 1, wherein, described image processing unit includes Digital Image Processing program.
6. method according to claim 5, wherein, calculates described pupil/iris using described image processing unit straight
The step of footpath ratio further includes：
Respectively the profile of iris and pupil is bound according to the color of image and gray scale using Digital Image Processing program, and
Calculate described pupil/iris diameter ratio.
7. method according to claim 1, wherein, is gathering described digital picture with described image detector unit to eyeball
Step before, also include：Iris diameter is measured under light source.
8. method according to claim 1, wherein, is calculating pupil/iris diameter using described image processing unit
After the step of ratio, and described pupil/iris diameter ratio is being multiplied by the step that iris diameter to calculate described pupil diameter
Before, also include：Iris diameter is measured under light source.
9. method according to claim 1, wherein, described iris a diameter of state human iris diameter average, and described state
Human iris' diameter average is 11.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989360.8A CN106419830A (en) | 2016-11-10 | 2016-11-10 | Method for measuring diameters of pupils |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989360.8A CN106419830A (en) | 2016-11-10 | 2016-11-10 | Method for measuring diameters of pupils |
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| CN106419830A true CN106419830A (en) | 2017-02-22 |
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| CN201610989360.8A Pending CN106419830A (en) | 2016-11-10 | 2016-11-10 | Method for measuring diameters of pupils |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393504A (en) * | 2018-04-24 | 2019-11-01 | 高金铎 | A kind of method and device of pupil detection |
| CN110477851A (en) * | 2019-07-15 | 2019-11-22 | 广东工业大学 | A kind of method of accurate measurement pupil and iris absolute diameter |
| CN111832344A (en) * | 2019-04-17 | 2020-10-27 | 深圳熙卓科技有限公司 | Dynamic pupil detection method and device |
| CN113456022A (en) * | 2021-07-01 | 2021-10-01 | 河北北方学院 | Vision monitoring file management system and method based on big data fitting |
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| CN101201893A (en) * | 2006-09-30 | 2008-06-18 | 电子科技大学中山学院 | Iris recognizing preprocessing method based on grey level information |
| JP2008259609A (en) * | 2007-04-11 | 2008-10-30 | Iritech Inc | Device for evaluating autonomic nerve function and stress level |
| CN102902967A (en) * | 2012-10-16 | 2013-01-30 | 第三眼（天津）生物识别科技有限公司 | Method for positioning iris and pupil based on eye structure classification |
| US20130170754A1 (en) * | 2010-09-24 | 2013-07-04 | Panasonic Corporation | Pupil detection device and pupil detection method |
| CN103324908A (en) * | 2012-03-23 | 2013-09-25 | 桂林电子科技大学 | Rapid iris collecting, judging and controlling method for iris identification |
| CN103955717A (en) * | 2014-05-13 | 2014-07-30 | 第三眼（天津）生物识别科技有限公司 | Iris activity detecting method |
| CN104394311A (en) * | 2014-09-15 | 2015-03-04 | 沈洪泉 | Iris identification imaging module for mobile terminal and image acquisition method |
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- 2016-11-10 CN CN201610989360.8A patent/CN106419830A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050110947A1 (en) * | 2002-01-16 | 2005-05-26 | Jean-Paul Chaduc | Device and method for measuring the diameter of the iridocorneal angle |
| CN101201893A (en) * | 2006-09-30 | 2008-06-18 | 电子科技大学中山学院 | Iris recognizing preprocessing method based on grey level information |
| JP2008259609A (en) * | 2007-04-11 | 2008-10-30 | Iritech Inc | Device for evaluating autonomic nerve function and stress level |
| US20130170754A1 (en) * | 2010-09-24 | 2013-07-04 | Panasonic Corporation | Pupil detection device and pupil detection method |
| CN103324908A (en) * | 2012-03-23 | 2013-09-25 | 桂林电子科技大学 | Rapid iris collecting, judging and controlling method for iris identification |
| CN102902967A (en) * | 2012-10-16 | 2013-01-30 | 第三眼（天津）生物识别科技有限公司 | Method for positioning iris and pupil based on eye structure classification |
| CN103955717A (en) * | 2014-05-13 | 2014-07-30 | 第三眼（天津）生物识别科技有限公司 | Iris activity detecting method |
| CN104394311A (en) * | 2014-09-15 | 2015-03-04 | 沈洪泉 | Iris identification imaging module for mobile terminal and image acquisition method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393504A (en) * | 2018-04-24 | 2019-11-01 | 高金铎 | A kind of method and device of pupil detection |
| CN110393504B (en) * | 2018-04-24 | 2022-02-15 | 高金铎 | Intelligent virus identification method and device |
| CN111832344A (en) * | 2019-04-17 | 2020-10-27 | 深圳熙卓科技有限公司 | Dynamic pupil detection method and device |
| CN111832344B (en) * | 2019-04-17 | 2023-10-24 | 深圳熙卓科技有限公司 | Dynamic pupil detection method and device |
| CN110477851A (en) * | 2019-07-15 | 2019-11-22 | 广东工业大学 | A kind of method of accurate measurement pupil and iris absolute diameter |
| CN113456022A (en) * | 2021-07-01 | 2021-10-01 | 河北北方学院 | Vision monitoring file management system and method based on big data fitting |
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Application publication date: 20170222 |
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