CN104068827A - Self-service eye comprehensive detection method and detection equipment - Google Patents
Self-service eye comprehensive detection method and detection equipment Download PDFInfo
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Abstract
The invention discloses a self-service eye comprehensive detection method. The method comprises the following steps: a control processing module judges the distance between eyes of a subject and equipment as well as the display positions of the eyes on the equipment, wherein the distance and the position meet the requirements of preset equipment values; a camera module acquires an image of the eyes under the illumination of an eccentric illuminating module; the control processing module receives the image of the eyes, analyzes the light intensity distribution of a pupil region through an algorithm to obtain refraction, astigmatism, pupil distance and eye position parameters of the eyes, and displays the parameters through the display module. Self-service eye comprehensive detection equipment is further disclosed. The equipment comprises a distance measuring module, the camera module, an eccentric illuminating module, the display module and the control processing module. Through the self-service eye comprehensive detection method and equipment, the subject can measure own refraction, astigmatism, pupil distance and eye position parameters without the help of medical personnel, test results are accurate, and labor force and materials are saved.
Description
Technical field
The present invention relates to ophthalmic medical apparatus field, be specifically related to a kind of self-service eyes method for comprehensive detection and checkout equipment.
Background technology
The automatic checkout equipment of people's refraction of eye is mainly desktop computer eye refractometer at present.It is that measured aims at pupil, regulates the action such as operating distance that this equipment needs operator, and measured initiatively watches the image in instrument attentively, just can measure measured's dioptric, therefore cannot accomplish that measured is self-service to complete inspection.That is to say, this equipment needs at least one individual operating instrument equipment, and another one people coordinates inspection just can complete the detection of measured's dioptric, therefore operates this equipment Inspection people refraction of eye and has wasted human and material resources and time cost.
In addition, announced both at home and abroad and utilized eccentric illumination eye refractometer to survey the technology of people's refraction of eye, eye position and astigmatism.But, utilize this equipment also to need other medical workers' cooperation, just can complete whole testing process, cannot realize the function of automatic test.
Summary of the invention
The invention provides the method and apparatus of the self-service detection of a kind of dioptric, its object is that solving measured cannot realize the defect of self-service detection dioptric, astigmatism and eye position.
Technical scheme of the present invention is as follows:
A kind of self-service eyes method for comprehensive detection, comprises the steps:
Control the position that processing module shows on described self-service eyes overall checkout equipment the distance between measured's eyes and self-service eyes overall checkout equipment and eyes and judge, make described distance and described position meet the preset requirement of described self-service eyes overall checkout equipment;
Photographing module gathers the image of eyes;
Control processing module and receive described image, by the light distribution of Algorithm Analysis pupil region, obtain dioptric, astigmatism and the eye position parameter of eyes, and show by display module.
Further: described distance is preset value or measured value.
Further: in the time that described distance is described preset value, the concrete steps that described control processing module judges the distance between eyes and equipment are:
Utilize range finder module to judge described distance, make described distance meet the described preset value of described self-service eyes overall checkout equipment and described distance is shown by described display module;
Further: the concrete steps that the position that described control processing module shows on described self-service eyes overall checkout equipment eyes judges are:
Measured, according to the preview image of the eyes that gathered by photographing module that show in real time in described display module, adjusts eyes position, until the eyes that described preview image shows are in test specification.
Further: the described adjustment concrete grammar to eyes position is: utilize automatization's control unit of described self-service eyes overall checkout equipment to do to adjust up and down to eyes.
Further: the position that described control processing module shows on described self-service eyes overall checkout equipment the distance between measured's eyes and self-service eyes overall checkout equipment and eyes judges and can carry out simultaneously.
Further: when described photographing module gathers the image of eyes, eccentric lighting source provides lighting source for described self-service eyes overall checkout equipment.
The present invention has also announced a kind of self-service eyes overall checkout equipment, comprising: range finder module, photographing module, eccentric lighting module, display module and control processing module;
Described range finder module is for measuring the distance between eyes and equipment; Described eccentric lighting module provides lighting source for human eye detection; Described photographing module is for taking the preview image of eyes and gather the image of eyes under the illuminating effect of eccentric lighting module; Described display module is used for showing described distance, preview image and dioptric, astigmatism and eye position parameter; Described control processing module, for receiving the image of described eyes, by the light distribution of Algorithm Analysis pupil region, obtains the parameter of dioptric, astigmatism and the eye position of eyes.
Further, in the light path between display module and the described human eye of described equipment, be also disposed with and observe lens and dichroic mirror; Described display module is arranged on the focal plane of described observation lens one side.
Further: described photographing module is area array cameras.
Further, described display module is LCD screen, OLED screen or LED array screen.
Useful technique effect of the present invention: utilize self-service eyes overall checkout equipment and method of testing, do not need medical worker's help, only need people of the person of testing oneself just can complete the measurement of dioptric, interpupillary distance, astigmatism and eye position, being conducive to tester detects voluntarily, easy to operate, and saved manpower and financial resources.
Brief description of the drawings
Fig. 1 is method general flow chart of the present invention;
Fig. 2 is module map of the present invention;
Fig. 3 is the part index path of this equipment;
Fig. 4 is another flow chart of the present invention;
Fig. 5 is that photographing module 4 is taken the eye fundus image that emmetropic index path and light path obtain by pupil;
Fig. 6 is that photographing module 4 is taken the eye fundus image that bathomorphic index path and light path obtain by pupil;
Fig. 7 is that photographing module 4 is taken the eye fundus image that presbyopic index path and light path obtain by pupil;
Fig. 8 is the structural representation of eccentric lighting module.
Detailed description of the invention
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to figure 2, Fig. 2 is the module connection diagram of self-service eyes overall checkout equipment, comprises and controls processing module 1, eccentric lighting module 2, display module 3, photographing module 4 and range finder module 5.
With reference to figure 1, utilize the way of the self-service detection eyes of these eyes overall checkout equipment, comprise the steps:
S101: control the position that processing module shows on described self-service eyes overall checkout equipment the distance between measured's eyes and self-service eyes overall checkout equipment and eyes and judge, make described distance and described position meet the preset requirement of described self-service eyes overall checkout equipment;
S102: photographing module gathers the image of eyes;
S103: control processing module and receive described image, by the light distribution of Algorithm Analysis pupil region, obtain dioptric, astigmatism and the eye position parameter of eyes, and show by display module.
For step S101, only meet in the test zone that the display position under the prerequisite of preset requirement of equipment and on the display module 3 of eyes at equipment arranges in equipment in the distance of eyes and self-service eyes overall checkout equipment, the preparation of self-service detection human eye just completes.It should be noted that, here said distance is divided into two kinds of situations: one is that this distance is preset value, the value that namely equipment pre-sets, now need to adjust the distance between eyes and equipment, and utilize range finder module to measure the distance between eyes and equipment, make after the value of this distance meets preset value, then the value substitution diopter of this distance is calculated to formula, obtain the diopter of eyes; Another kind is measured value, and this particular value substitution diopter is calculated to formula, obtains the diopter of eyes; Another kind is measured value, now, without the distance of adjusting between eyes and equipment, directly, by this measured value substitution dioptric computing formula, obtains eyes dioptric value.
Further, in the time that this distance is preset value, the control processing module of this equipment judges that the concrete way whether described distance and described position meet test needs is shown in Fig. 4.First, measured stands in before self-service eyes overall checkout equipment, and the distance between eyes and equipment is adjusted in front and back, controls processing module 1 and judges whether this distance meets preset value requirement and judged result is pointed out by display module 3.If this distance meets preset value, the correct information of display module 3 range of a signal; If this distance does not meet preset value, display module 3 demonstrates the wrong information of distance.In the situation that distance does not meet preset value, the person of testing oneself adjusts the distance between equipment before and after needing constantly, to the last meets preset value.
Except meeting the distance of eyes and equipment meets the requirements, also need to meet the position that eyes show on display module 3 and meet test specification.Particularly, the person of testing oneself judges that by the preview image of the real-time eyes that gathered by photographing module 4 that show in display module 3 whether position is correct.If this malposition, by the automation control module of operating equipment, regulates eyes all around, make the preview image of the eyes that are finally presented at display module 3 correct, meet the needs of test specification.It should be noted that, the adjustment of the distance between eyes and equipment and eyes are presented at the adjustment of the position on display module 3 in real time can carry out simultaneously, also can when difference, carry out, for example: formerly, eyes are presented at after being adjusted at of position on display module 3 in the adjustment of the distance between eyes and equipment; Or after being adjusted at of the distance between eyes and equipment, the adjustment that eyes are presented at the position on display module 3 formerly also allows.
Judge that when controlling processing module 1 eyes that show on distance between eyes and equipment and display module 3, after test specification, enter step S102.Now, open the power supply of eccentric lighting module 2, allow many groups LED lamp 22 of eccentric lighting module 2 illuminate successively eyes, photographing module 4 gathers the image of eyes.
With reference to figure 8, eccentric lighting module 2 is some LED lamp groups that are evenly arranged around the same center of circle.Particularly, some LED lamp groups are divided into 6 groups, and these 6 groups of LED lamps are arranged on respectively on orthohexagonal six limits one by one.That is to say, on orthohexagonal every one side, be all placed with one group of LED lamp 22 that quantity is identical.Open the power supply of eccentric lighting module 2, its essence is the LED lamp 22 of turning on successively on orthohexagonal every one side, allow different LED lamps 22 illuminate eyes from multi-angle.It should be noted that, eccentric lighting module 2 is in the time that photographing module 4 is taken the preview image of eyes, if the light of environment is enough sufficient, do not need to light, but, complete after the Correctly adjust of the position that eyes show in display module, when photographing module 4 is taken binocular images, each LED lamp of eccentric lighting module 2 needs all to light.
Step S103: control processing module and receive described image, by the light distribution of Algorithm Analysis pupil region, obtain dioptric, astigmatism and the eye position parameter of eyes, and show by display module.After step S102 completes, control the image that processing module 1 receives the eyes that photographing module 4 takes, by the computing module in self-service eyes overall checkout equipment, analyze and calculate the light intensity of the pupil region that photographing module 4 throws light on from different perspectives at eccentric lighting module 2, obtain dioptric, astigmatism, the eye position parameter of eyes.Same, also can, by the interpupillary distance of two pupils in measurement image, obtain interpupillary distance parameter.
By step S101-S103, the person of testing oneself is without other medical workers' cooperation, a people just can complete dioptric, astigmatism, axle position, interpupillary distance and the eye isoparametric detection in position of eyes, realize the object of utilizing eyes overall checkout equipment to detect voluntarily eyes relevant parameter, this operational approach simple and fast, testing result is accurate, and the cost that uses manpower and material resources sparingly.
The operation principle of photographing module
The article of delivering in the 27th the 6th phase of volume of " optical instrument " magazine of in December, 2005 is numbered 1005-5630 (2005) 06-0080-05, and the document that exercise question is " research of infrared eccentric photorefractor " has done detailed introduction.
The principle of the operation principle of the photographing module in the present invention and infrared eccentric shooting eye refractometer is basic identical.Concrete with reference to figure 5-Fig. 7.
With reference to figure 5-Fig. 7, this three width figure represents respectively the situation of change of the eye image of introducing photographing module shooting emmetropia, myopia, presbyopic index path and obtain.In Fig. 5, because human eye is emmetropia, the first light beam (arrow left) imaging on the Er of the optical fundus of human eye E that light source 41 sends, now, fainter the second light beam (arrow right) sending from optical fundus Er is by the central through hole 421 of diaphragm camera lens 42, because the first light beam and the second light beam do not occur simultaneously on the Er of optical fundus, therefore the light beam obtaining does not have spot zone through the oculopupillary eye fundus image 44 of people.In Fig. 6, because human eye is myopia, the first light beam (arrow left) that light source 41 sends focuses at the optical fundus of human eye E Er front end; Fainter the second light beam (arrow right) sending from optical fundus Er passes through the central through hole 421 of diaphragm camera lens 42 optical fundus Er front end focuses on, because the first light beam and the second light beam have common region M on the Er of optical fundus, therefore the light beam obtaining has spot zone 441 through the oculopupillary eye fundus image 44 of people; In Fig. 7, because human eye is hypermetropia, the first light beam (arrow left) that light source 41 sends focuses in the rear end of optical fundus Er, the rear end of fainter the second light beam (arrow right) the optical fundus Er sending from optical fundus Er focuses on, then by the centre bore 421 of diaphragm camera lens 42.Now, the first light beam (arrow left) and the second light beam (arrow right) have common region M at optical fundus Er, and the eye fundus image 44 that light beam obtains through human eye pupil has spot zone 441.The light distribution of the human eye pupil region of measuring according to photographing module 4, just can obtain dioptric, eye position and the astigmatic parameter of eyes.
In the time of actual measurement, utilize eccentric lighting module 2 in Fig. 8 to throw light on to human eye E different azimuth, obtain the information such as diopter of correction and astigmatism degree and eye position of eyes.
With reference to figure 2, the present invention has also announced a kind of self-service eyes overall checkout equipment, comprising: control processing module 1, eccentric lighting module 2, display module 3, photographing module 4 and range finder module 5.Particularly, range finder module 5, for detection of the distance between eyes and self-service eyes overall checkout equipment, makes described distance meet the needs of test.2 images that are used to photographing module 4 to take eyes of eccentric lighting module provide lighting source, also can gather the preview image of eyes for photographing module 4 time, provide lighting source, the effect of preview image be to help the person of testing oneself observe eyes in display module 3 display position whether in test specification.Photographing module 4 gathers described preview image and for completing the distance between eyes and equipment and eyes are presented at after the judgement in region of display module 3 in control processing module 1, gathers the image of eyes.Display module 3 is for showing the distance correctness between eyes and equipment, show that whether the position of eyes in display module 3 be in test specification, the person of testing oneself learns this distance and correct position or incorrect by observing in the position between people and equipment during in the metamorphosis stage information of prompting on display module 3.In addition, display module 3 is also for showing the preview image of eyes and the image that passes through multiple eyes that photographing module 4 gathers after preview image.Whether it should be noted that, in tram, be that tester is by observing the preview image of eyes in display module 3 and learning according to the prompting result on display module 3 in the eyes position in display module 3 that judges people.It is exactly the eyes parameter that shows that test finally obtains that display module 3 also has an effect, as dioptric, interpupillary distance, eye position and astigmatism, obtaining of these parameters is analyze the light distribution of the pupil region that described binocular images shows and calculate by computing formula by controlling processing module 1.Control processing module 1 for judging before test is carried out whether whether distance between eyes and equipment meet the requirement of preset value and position that eyes are presented at display module 3 in test specification; Also, for receiving the image of eyes, by the light distribution of Algorithm Analysis pupil region, obtain the parameter of dioptric, astigmatism and the eye position of eyes.
With reference to figure 3, Fig. 3 is part index path of the present invention.In this equipment, be provided with and observe lens 21 and dichroic mirror 31.Particularly, observing lens 21 and dichroic mirror 31 is arranged in the light path between display module 3 and the human eye E in equipment.Further, display module 3 is arranged on the focal plane of observing lens 21 1 sides, and like this, in the time of eye-observation display module 3, actual is the object that is positioned at infinite point in observation.Acting as the near infrared light of the visible ray of observation optical path and detection light path separately of dichroic mirror 31.
In the present invention, display module 3 is preferentially chosen as the one of LED screen, OLED (organic electric exciting light-emitting diode, OrganicLight-EmittingDiode) or LCD (liquid crystal display, LiquidCrystal Display).
In the present invention, photographing module 4 is area array cameras.Area array cameras has broad-spectrum advantage, can be to area, shape, size, position, and the even measurement of temperature.In addition, area array cameras can obtain two dimensional image, and measurement image is more directly perceived.
In the present invention, range finder module 5 is preferably supersonic range finder or infrared distance measurement device.
The said self-service eyes overall checkout equipment of the present invention, help in when operation without other medical workers, only need to people's Self-operating equipment of the person of testing oneself just can complete the test of dioptric to eyes, eye position, astigmatic, axle position and interpupillary distance, really realize the object of self-service measurement, this equipment has advantages of simple to operate, test result is accurate, is conducive to the saving of manpower and materials cost.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a self-service eyes method for comprehensive detection, is characterized in that, comprises the steps:
Control the position that processing module shows on described self-service eyes overall checkout equipment the distance between measured's eyes and self-service eyes overall checkout equipment and eyes and judge, make described distance and described position meet the preset requirement of described self-service eyes overall checkout equipment;
Photographing module gathers the image of eyes;
Control processing module and receive described image, by the light distribution of Algorithm Analysis pupil region, obtain dioptric, astigmatism and the eye position parameter of eyes, and show by display module.
2. self-service eyes method for comprehensive detection as claimed in claim 1, is characterized in that, described distance is preset value or measured value.
3. self-service eyes method for comprehensive detection as claimed in claim 2, is characterized in that, in the time that described distance is described preset value, the concrete steps that described control processing module judges the distance between eyes and equipment are:
Utilize range finder module to judge described distance, make described distance meet the described preset value of described self-service eyes overall checkout equipment and described distance is shown by described display module.
4. self-service eyes method for comprehensive detection as claimed in claim 1, is characterized in that, the concrete steps that the position that described control processing module shows on described self-service eyes overall checkout equipment eyes judges are:
Measured, according to the preview image of the eyes that gathered by photographing module that show in real time in described display module, adjusts eyes position, until the eyes that described preview image shows are in test specification.
5. self-service eyes method for comprehensive detection as claimed in claim 4, is characterized in that, the described adjustment concrete grammar to eyes position is: utilize automatization's control unit of described self-service eyes overall checkout equipment to do to adjust up and down to eyes.
6. if claim 1 is to the self-service eyes method for comprehensive detection as described in any one claimed in claim 5, it is characterized in that: the position that described control processing module shows on described self-service eyes overall checkout equipment the distance between measured's eyes and self-service eyes overall checkout equipment and eyes judges and can carry out simultaneously.
7. if claim 1 is to the self-service eyes method for comprehensive detection as described in any one claimed in claim 5, it is characterized in that, when described photographing module gathers the image of eyes, eccentric lighting source provides lighting source for described self-service eyes overall checkout equipment.
8. a self-service eyes overall checkout equipment, is characterized in that, comprising: range finder module, photographing module, eccentric lighting module, display module and control processing module;
Described range finder module is for measuring the distance between eyes and equipment; Described eccentric lighting module provides lighting source for human eye detection; Described photographing module is for taking the preview image of eyes and gather the image of eyes under the illuminating effect of eccentric lighting module; Described display module is used for showing described distance, preview image and dioptric, astigmatism and eye position parameter; Described control processing module, for receiving the image of described eyes, by the light distribution of Algorithm Analysis pupil region, obtains the parameter of dioptric, astigmatism and the eye position of eyes.
9. self-service eyes overall checkout equipment as claimed in claim 8, is characterized in that, is also disposed with and observes lens and dichroic mirror in the light path between display module and the described human eye of described equipment; Described display module is arranged on the focal plane of described observation lens one side.
10. the self-service eyes overall checkout equipment of one as claimed in claim 8, is characterized in that, described photographing module is area array cameras.
The self-service eyes overall checkout equipment of 11. one as claimed in claim 8, is characterized in that, described display module is LCD screen, OLED screen or LED array screen.
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