CN106618580A - Strabismus and nystagmus head position detection method, device and system - Google Patents
Strabismus and nystagmus head position detection method, device and system Download PDFInfo
- Publication number
- CN106618580A CN106618580A CN201611203009.8A CN201611203009A CN106618580A CN 106618580 A CN106618580 A CN 106618580A CN 201611203009 A CN201611203009 A CN 201611203009A CN 106618580 A CN106618580 A CN 106618580A
- Authority
- CN
- China
- Prior art keywords
- head
- subject
- head position
- position data
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1071—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring angles, e.g. using goniometers
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1075—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/46—Extracting features or characteristics from the video content, e.g. video fingerprints, representative shots or key frames
- G06V20/47—Detecting features for summarising video content
Abstract
The invention discloses a strabismus and nystagmus head position detection method, device and system, and relates to the field of medical apparatuses and instruments. The method comprises the steps that a head video image, collected by an intelligent camera erected in front of a subject, of the subject during the period of starring a sighting mark under the guidance of a physician is obtained from the intelligent camera; by analyzing the head video image, whether the head of the subject is at the standard position or not is determined; when it is determined that the head of the subject is at the standard position, head position data which is collected by a head position detector worn on the head of the subject and generated when the head of the subject is at the standard position is adopted as standard head position data; habitual head position data which is collected by the head position detector and generated when the head of the subject is at the habitual position is obtained from the head position detector; according to the standard head position data and the habitual position data, head position deviation data of the subject is determined. According to the strabismus and nystagmus head position detection method, device and system, the head position detection accuracy can be improved.
Description
Technical field
The present invention relates to ophthalmic medical apparatus field, more particularly to a kind of stravismus and nystagmus head position detecting method, dress
Put and system.
Background technology
Clinically, at present stravismus and the conventional qualitative examination means of nystagmus head position detection are observation method of naked eye, are passed through
The method is only able to know that substantially head position, and can not accurately learn angle value.Conventional quantitative check means are rule survey
Amount method, i.e., measure head three axial positions using angle graduated scale.The method checks inconvenience, and inspection result receives people
Affect big for factor.
Prior art provides some level detection apparatus.For example, a kind of wear-type perpendicular head position corner and horizontal head position
There is larger error in the detection means of corner, the head position under the weight wearer's head nature of the device, measurement, and
The equipment does not possess facial rotational angle (i.e. face corner) audit function.Again for example, a kind of wear-type compensation head position measurer, its
Weight equally affects the head position under wearer's head nature, causes measured value inaccurate, and artificial reading numerical values, reads
Inconvenience, numerical value changes big.Again for example, a kind of automatic measurement Compensatory Head Posture device, wears measurement inconvenience, and equipment is huge, to nature
There is considerable influence head position, causes measured value inaccurate.Further, the said equipment does not have not to head zero point alignment
Determine measuring basis, the measurement of dimension head position is inaccurate, it is difficult to be applied to clinic.
The content of the invention
A kind of stravismus and nystagmus head position detecting method, the apparatus and system for providing according to embodiments of the present invention, solves
Head position measures inaccurate problem.
A kind of stravismus and the nystagmus head position detecting method for providing according to embodiments of the present invention, including：
From the intelligent camera being set up in front of experimenter, the experimenter of the intelligent camera collection is obtained in doctor
Head video image during watching sighting target attentively under teacher's guiding；
By being analyzed to the head video image, determine the subject's head whether in normal place；
When it is determined that the subject's head is in normal place, the head position detector of the subject's head will be worn on
Collection the subject's head be in normal place when head position data as standard header position data；
From head position detector, when the subject's head for obtaining the collection of head position detector is in conventional location
Custom head position data；
According to standard header position data and the custom head position data, the head position deviation data of the experimenter is determined.
Preferably, it is described by being analyzed to the head video image, determine whether the subject's head is located
Include in normal place：
By carrying out recognition of face to the head video image, determine the subject's head video image including face
Portion's characteristic point, eye feature point, nose characteristic point, the face characteristic point of ear's characteristic point；
According to the face characteristic point of the subject's head video image, determine whether left and right is inclined for experimenter's face
Turn, whether head tilts, whether lower jaw lifts or reclaim；
If it is determined that the non-deflection of experimenter face, head does not tilt, lower jaw is not lifted or reclaimed, it is determined that
The subject's head is in normal place..
Preferably, the described subject's head gathered from head position detector, acquisition head position detector
In conventional location when custom head position data include：
One group of custom head position data when obtaining the subject's head in conventional location from head position detector, and
The mean square deviation of the group custom head position data is calculated, if the mean square deviation is less than predetermined threshold value, the group custom head position data is made
For valid data；
Repeat the above steps, obtain multigroup valid data, and calculate the mean value of multigroup valid data as described
The custom head position data of experimenter.
Preferably, standard header position data include the subject's head be in normal place when shoulder inclination angle, lower jaw
Angle and face corner, the custom head position data include the subject's head be in conventional location when shoulder inclination angle, angle of mandible and
Face corner, it is described according to standard header position data and the custom head position data, determine the head position deviation of the experimenter
Data include：
Shoulder inclination angle, angle of mandible and face corner when the subject's head to be in normal place respectively with the experimenter
Shoulder inclination angle, angle of mandible and face corner when head is in conventional location is subtracted each other, and obtains the head position deviation data of the experimenter.
The storage medium for providing according to embodiments of the present invention, it is stored for realizing stravismus and nystagmus head position detection side
The program of method.
A kind of stravismus provided according to another embodiment of the present invention and nystagmus head position detecting method, including：
Using the intelligent camera being set up in front of experimenter, gather the experimenter and watch the sighting target phase attentively under doctor's guiding
Between head video image；
By being analyzed to the head video image, determine the subject's head whether in normal place；
If it is determined that the subject's head is in normal place, then the head position detector of the subject's head will be worn on
Collection the subject's head be in normal place when head position data as standard header position data；
Using head position detector, the collection subject's head is in custom head position data during conventional location；
According to standard header position data and the custom head position data, the head position deviation data of the experimenter is determined.
A kind of stravismus and the nystagmus head level detecting apparatus for providing according to embodiments of the present invention, including：
Image capture module, adopts for from the intelligent camera being set up in front of experimenter, obtaining the intelligent camera
Collection the experimenter doctor guiding under watch sighting target attentively during head video image；
Image processing module, for by being analyzed to the head video image, determining that the subject's head is
It is no in normal place；
Data processing module, for when it is determined that the subject's head is in normal place, being worn on described tested
Head position data when the subject's head of the head position detector collection of person's head is in normal place are used as standard header digit
According to then from head position detector, when the subject's head for obtaining the collection of head position detector is in conventional location
Custom head position data, and according to standard header position data and the custom head position data, determine the head position of the experimenter
Deviation data.
Preferably, described image processing module is to the head video image by carrying out recognition of face, it is determined that described receive
Examination person's head video image including face feature point, eye feature point, nose characteristic point, the face feature of ear's characteristic point
Point, according to the face characteristic point of the subject's head video image, determines experimenter face whether deflection, head
Whether tilt, whether lower jaw lifts or reclaim, however, it is determined that the facial non-deflection of the experimenter, the non-lateral tilting of head
Tiltedly, lower jaw is not lifted or reclaimed, it is determined that the subject's head is in normal place.
Preferably, the data processing module obtains the subject's head and is in conventional location from head position detector
When one group of custom head position data, and calculate the mean square deviation of group custom head position data, if the mean square deviation is less than predetermined threshold value,
Then the group is accustomed into head position data as valid data, repeat the above steps, obtains multigroup valid data, and calculate described multigroup
The mean value of valid data is used as custom head position data.
Preferably, standard header position data include the subject's head be in normal place when shoulder inclination angle, lower jaw
Angle and face corner, the custom head position data include the subject's head be in conventional location when shoulder inclination angle, angle of mandible and
The subject's head is in face corner, the data processing module shoulder inclination angle, angle of mandible and face corner during normal place
Shoulder inclination angle, angle of mandible and face corner when being in conventional location with the subject's head respectively is subtracted each other, and obtains the experimenter
Head position deviation data.
A kind of stravismus and the nystagmus head position detecting system for providing according to embodiments of the present invention, including：
The intelligent camera being set up in front of experimenter, the sighting target phase is watched attentively for gathering the experimenter under doctor's guiding
Between head video image；
The head position detector of the subject's head is worn on, for gathering the head position data of the experimenter；
Head level detecting apparatus, for by being analyzed to the head video image, determining that the subject's head is
It is no in normal place, however, it is determined that the subject's head be in normal place, then by head position detector gather described in
Then head position data when subject's head is in normal place obtain the collection of head position detector as standard header position data
Head position data of subject's head when being in conventional location, and according to standard header position data and the custom head position
Data, determine the head position deviation data of the experimenter.
Technical scheme provided in an embodiment of the present invention has the advantages that：
The embodiment of the present invention can improve a position detection accuracy, it is adaptable to clinically to stravismus with nystagmus patients'
Head position checks.
Description of the drawings
Fig. 1 is stravismus provided in an embodiment of the present invention and nystagmus head position detecting method flow chart；
Fig. 2 is stravismus provided in an embodiment of the present invention and nystagmus head level detecting apparatus block diagram；
Fig. 3 is the stravismus and nystagmus head position detecting method flow chart that another embodiment of the present invention is provided；
Fig. 4 is stravismus provided in an embodiment of the present invention and nystagmus head position detecting system block diagram；
Fig. 5 is the Organization Chart of stravismus provided in an embodiment of the present invention and nystagmus head position detecting system；
Fig. 6 is the stravismus and nystagmus head position detection process implementing procedure figure of system shown in Figure 5.
Specific embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, it will be appreciated that described below is excellent
Select embodiment to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is stravismus provided in an embodiment of the present invention and nystagmus head position detecting method flow chart, as shown in figure 1, step
Suddenly include：
Step S101：From the intelligent camera being set up in front of experimenter, the described of the intelligent camera collection is obtained
Experimenter doctor guiding under watch sighting target attentively during head video image.
Step S102：By being analyzed to the head video image, determine the subject's head whether in mark
Level is put.
Step S102 includes：By carrying out recognition of face to the head video image, determine that the subject's head is regarded
Frequency image including face feature point, eye feature point, nose characteristic point, the face characteristic point of ear's characteristic point, according to described
The face characteristic point of subject's head video image, determines experimenter face whether deflection, head whether lateral tilting
Tiltedly, whether lower jaw lifts or reclaims, however, it is determined that the non-deflection of experimenter face, head does not tilt, lower jaw is not lifted
Rise or reclaim, it is determined that the subject's head is in normal place.
Wherein, according to face feature point, determine whether experimenter's face is symmetrical, if symmetrically, illustrates face not
Deflection.
Wherein, using the eye feature point of the subject's head video image, eyes line is determined, using described tested
The nose characteristic point of person's head video image, determines nasal bone line；Then eyes line and nasal bone line are set up and is sat as reference axis
Mark system, and set up coordinate system and preset coordinate system are contrasted, if the corresponding axis of two coordinate systems is parallel or even overlaps, example
As eyes line is parallel with the X-axis of preset coordinate system or overlaps, it is determined that the subject's head does not tilt.
Wherein, using the ears characteristic point and the position relationship of the eyes line, determine that experimenter's lower jaw is
It is no to lift or reclaim, a term of reference typically can be set, if ear's characteristic point is in the term of reference, then it is assumed that tested
Person's lower jaw is not lifted or reclaimed.
Step S103：When it is determined that the subject's head is in normal place, the subject's head will be worn on
Head position data when the subject's head of head position detector collection is in normal place are used as standard header position data.
Step S104：From head position detector, the subject's head for obtaining the collection of head position detector is in
Custom head position data during conventional location.
Step S104 includes：One group of habit when obtaining the subject's head in conventional location from head position detector
Used head position data, and the mean square deviation of the group custom head position data is calculated, if the mean square deviation is less than predetermined threshold value, the group is practised
Used head position data are used as valid data；Repeat the above steps, obtain multigroup valid data, and calculate multigroup valid data
Custom head position data of the mean value as the experimenter.
It should be noted that can further rule of thumb data arrange head position compensation data table, i.e., according to the head position
Custom head position data are compensated, the custom head position data after being compensated, based on step S105 by compensation data table
Calculate head position deviation.
Step S105：According to standard header position data and the custom head position data, the head position of the experimenter is determined
Deviation data.
Wherein, standard header position data include the subject's head be in normal place when shoulder inclination angle, angle of mandible
With face corner；Shoulder inclination angle, angle of mandible and face when custom head position data include that the subject's head is in conventional location
Corner.
Step S105 includes：Shoulder inclination angle, angle of mandible and face corner when the subject's head to be in normal place is divided
Shoulder inclination angle, angle of mandible and face corner when not being in conventional location with the subject's head is subtracted each other, and obtains the experimenter's
Head position deviation data.
It will appreciated by the skilled person that realizing that all or part of step in above-described embodiment method can be
Related hardware is instructed to complete by program, described program can be stored in computer read/write memory medium, should
Upon execution, including step S101 is to step S105 for program.Wherein, described storage medium can be ROM/RAM, magnetic disc, light
Disk etc..
Fig. 2 be it is provided in an embodiment of the present invention stravismus with nystagmus head level detecting apparatus block diagram, as shown in Fig. 2 including：
Image capture module 11, for from the intelligent camera being set up in front of experimenter, obtaining the intelligent camera
Collection the experimenter doctor guiding under watch sighting target attentively during head video image.
Image processing module 12, for by being analyzed to the head video image, determining the subject's head
Whether normal place is in.Specifically, described image processing module 12 to the head video image by carrying out face knowledge
, do not determine the subject's head video image including face feature point, eye feature point, nose characteristic point, ear's feature
Whether the face characteristic point of point, according to the face characteristic point of the subject's head video image, determine experimenter's face
Whether deflection, head tilt, whether lower jaw lifts or reclaim, however, it is determined that the facial non-deflection of the experimenter,
Head does not tilt, lower jaw is not lifted or reclaims, it is determined that the subject's head is in normal place.
Data processing module 13, for described receiving when it is determined that the subject's head is in normal place, will to be worn on
Head position data when the subject's head of the head position detector collection of examination person's head is in normal place are used as standard header position
Data, then from head position detector, the subject's head for obtaining the collection of head position detector is in conventional location
When custom head position data, and according to standard header position data and the custom head position data, determine the head of the experimenter
Position deviation data.Wherein, data processing module 13 obtains the subject's head and is in conventional location from head position detector
When one group of custom head position data, and calculate the mean square deviation of group custom head position data, if the mean square deviation is less than predetermined threshold value,
Then the group is accustomed into head position data as valid data, repeat the above steps, obtains multigroup valid data, and calculate described multigroup
The mean value of valid data is used as custom head position data.Standard header position data include that the subject's head is in normal bit
Shoulder inclination angle, angle of mandible and face corner when putting, when the custom head position data include that the subject's head is in conventional location
Shoulder inclination angle, angle of mandible and face corner, the subject's head is in the data processing module 13 shoulder during normal place
Inclination angle, angle of mandible and face corner are in respectively shoulder inclination angle, angle of mandible and face corner during conventional location with the subject's head
Subtract each other, obtain the head position deviation data of the experimenter.
Fig. 3 is the stravismus and nystagmus head position detecting method flow chart that another embodiment of the present invention is provided, such as Fig. 3 institutes
Show, step includes：
Step S201：Using the intelligent camera being set up in front of experimenter, the collection experimenter is under doctor's guiding
Head video image during watching sighting target attentively, including image of the subject's head in various diverse locations.
Step S202：By being analyzed to the head video image, determine the subject's head whether in mark
Level is put, and specifically, face feature point, eye is included obtained from recognition of face is carried out to the head video image
Characteristic point, nose characteristic point, the face characteristic point of ear's characteristic point, determine the non-deflection of experimenter's face, head not
Tilt, when lower jaw is not lifted or reclaimed, illustrate that the subject's head is in normal place.
Step S203：If it is determined that the subject's head is in normal place, then the subject's head will be worn on
Head position data when the subject's head of head position detector collection is in normal place are used as standard header position data.
Step S204：Using head position detector, the collection subject's head is in custom head during conventional location
Position data.
In order to obtain stable custom head position data, the subject's head can be obtained from head position detector and be in
One group of custom head position data during conventional location, and the mean square deviation of the group custom head position data is calculated, if the mean square deviation is less than
Predetermined threshold value, then using the group custom head position data as valid data；Repeat the above steps, obtain multigroup valid data, and count
Calculate the custom head position data of the mean value as the experimenter of multigroup valid data.
It is possible to further arrange head position compensation data table, i.e., according to the head position compensation data table, to the custom head
Position data are compensated, the custom head position data after being compensated, and for step S105 head position deviation is calculated, can to improve data
By property.
Step S205：According to standard header position data and the custom head position data, the head position of the experimenter is determined
Deviation data.
That is, the visual front sighting target of experimenter, using head position detector, standard header position during collection head position " just "
Normal header position data when data and natural head position, and calculate the head position deviation of two kinds of head positions.
Fig. 4 be it is provided in an embodiment of the present invention stravismus with nystagmus head position detecting system block diagram, as shown in figure 4, including：
Intelligent camera 20, is set up in experimenter front, is particularly located at the 2-3 rice of experimenter front, described for gathering
Experimenter doctor guiding under watch sighting target attentively during head video image, such as described experimenter doctor guiding under pass through on
During sighting target is watched in lower left and right swinging head portion attentively, by its camera assembly, the head video image of experimenter, the head for being gathered are gathered
Portion's video image is wirelessly sent in real time to head level detecting apparatus 10 by its wireless communication module.
Head position detector 30, is worn on subject's head, is particularly located in subject's head at volume, for gathering experimenter
Head position data.Specifically, head position detector 30 is processed by the data to its angular transducer collection, obtains tested
Head position data during person's swing head during head arrival diverse location, and by its wireless communication module, it is wirelessly real
When send to head level detecting apparatus 10.
Head level detecting apparatus 10, being arranged on can be with head position detector 30 and any position of the wireless telecommunications of intelligent camera 20
Put, for by being analyzed to the head video image, whether the subject's head being determined in normal place, if really
The fixed subject's head is in normal place, then the subject's head for gathering head position detector is in normal bit
Head position data when putting are in as standard header position data, the subject's head for then obtaining head position detector collection
Head position data during conventional location, and according to standard header position data and the custom head position data, determine the experimenter
Head position deviation data.Head level detecting apparatus 10 include image capture module 11, image processing module 12 and the data processing of Fig. 2
Module 13, and the corresponding function described in Fig. 2 can be realized.That is, head level detecting apparatus 20 respectively with intelligent camera 20
Communicate wirelessly with head position detector 30, obtain subject's head video image and corresponding head position data, it is tested by recognizing
Person's head video image, it is determined that including face feature point, eye feature point, nose characteristic point, the face feature of ear's characteristic point
Point, according to the face characteristic point of the subject's head video image, determines experimenter face whether deflection, head
Whether tilt, whether lower jaw lifts or reclaim, however, it is determined that the facial non-deflection of the experimenter, the non-lateral tilting of head
Tiltedly, lower jaw is not lifted or reclaimed, it is determined that the subject's head is in normal place, will now corresponding from the beginning position detector
The head position data of acquisition finally on the basis of the standard header position data, determine that subject's head is located at as standard header position data
The deviation between head position data and benchmark during conventional location.
The system can attach a physicsl correct instrument for determining the degree of accuracy of sensor in the detector of head position, should
Physicsl correct instrument can be traditional bubble type horizon rule and bevel protractor, or other be used for the instrument of correction.In the system
After system is by Long-Time Service, it is possible to use physicsl correct instrument determines the accuracy of measurement of head position detector, for example, if the detection of head position
The data of instrument collection are different from the reference data of horizon rule, then illustrate that the sensor measurement in the detector of head position is inaccurate, need
Change in time.
The detecting step of the system includes：
Step 1：Doctor guiding experimenter watches sighting target attentively, makes subject's head bob and weave.Subject's head convergence
And reach " just " position (i.e. normal place).
Step 2：Head position detector 30 gathers the subject's head position during subject's head swings, and specifically includes shoulder and inclines
Angle, angle of mandible, face corner, and send to head level detecting apparatus 10, while the collection subject's head shaking peroid of intelligent camera 20
Between subject's head video image, and send to head level detecting apparatus 10.
Step 3：Head level detecting apparatus 10 carry out image recognition, obtain face characteristic point, and according to face characteristic point, it is determined that
When subject's head is in normal place, using corresponding shoulder inclination angle, angle of mandible, face corner as mark during experimenter's head position " just "
Accuracy position data.
Above-mentioned steps 1 to step 3 is the step of determining measuring basis.
Step 4：Experimenter's head position is set to be accustomed to state in the raw, that is,.
Step 5：Head position detector 30 obtains subject's head in custom position when subject's head is in custom state
Shoulder inclination angle, angle of mandible when putting, face corner, and send to head level detecting apparatus 10.
Step 6：The shoulder of shoulder inclination angle, angle of mandible, face corner and standard that head level detecting apparatus 10 are respectively compared in step 5 inclines
Angle, angle of mandible, face corner, obtain relative head position data.
Above-mentioned steps 5 to step 6 is measuring process.
Fig. 5 is stravismus provided in an embodiment of the present invention and the Organization Chart of nystagmus head position detecting system, at present stravismus and
Nystagmus patients in clinical examination, the position for generally calculating and determining patients head using traditional observation and estimation algorithm
The chatter frequency with eyeball is put, this kind of method is empirical more important, more experience levels needed by doctor, and surveying
There is larger error in amount, as shown in figure 5, stravismus provided in an embodiment of the present invention passes through with eyeball chatter head position detecting system
Wear the measuring apparatus (i.e. head position detector) of miniaturization to patient, and by technology of Internet of things computer end management software
The head parallactic angle degree and eyeball that patient is recorded and evaluated on (i.e. computer management system, realizes the function of above-mentioned head level detecting apparatus) shakes
Quiver frequency, for doctor, precisely medical treatment provides sound assurance.
Fig. 6 is the stravismus and nystagmus head position detection process implementing procedure figure of system shown in Figure 5, as shown in fig. 6, this
The bright patient's stravismus for being to integrate patient's head position detector, computer management system and video recognition system (i.e. video camera)
With nystagmus head position detecting system.Stravismus and nystagmus head position detecting system include the detection of patients head position, Huan Zhetou
Portion position school zero (i.e. head " just " position or normal place), three parts of system acquisition and process.Detection process is patient first
Head location detection module (i.e. head position detector) is installed or worn, and video camera is set up in the distance apart from patient's 2-3 rice
Equipment (i.e. video camera), allows patient to loosen and completes an eye test process, sets so as to pass through head device and video
It is standby to the defeated detection data of computer control software upload, and data processing and information record are carried out by management software.
Head position detector is miniaturization, a light equipment, is installed on the upper volume of the head of patient, the forehead with patient
It is brought into close contact, head position detector is surveyed by position sensor (such as multiaxis angular transducer) to the head position of patient
Amount, position sensor measurement data of multiple angles calculate by way of quaternary number is fitted patients head position shoulder inclination angle,
The number of degrees of angle of mandible, face corner, and be wirelessly transferred angle-data to computer management system by ZigBee technology.In head
In the measurement process of position detector, it is thus necessary to determine that the position (i.e. head " just " position or normal place) of patient's head position starting point, head
The zero point of position determines to be realized by intelligent camera, and after the detector of patient-worn's head position, doctor guides tested using sighting target
Person watches attentively, is guided out experimenter's custom head position, and in the process intelligent video camera head is counted by the head position information to patient
Calculate, algorithm is substantially：By the head of patient similar to a circular rigid body, by video identification technology, if judge eyes line and
The absolute position of the coordinate system that nasal bone line is formed coincide with the default dead-center position of smart camera, facial symmetrical, ears feature
Position is in term of reference with eyes link position, it is determined that the odd-job of head position school is completed, and records head parallactic angle degree now
Data.After the completion of the work of system check for zero, start the relative head parallactic angle degrees of data for measuring patient, the head position data meeting of measurement
Uploaded in computer management system with the frequency of 20HZ, computer control software receives measurement data, and sets up the personal inspection of patient
Survey record, when detection head position is tended towards stability, recording detection data and preserve in a management system, algorithm is substantially：Receive 10
Second head position information data, about 200 data, and being calculated by filtering algorithm logarithm value, when the mean square deviation of numerical value
During less than 0.1, valid data are recorded.With this 2-3 time repeatedly, and mean value is calculated, may finally be by this set of stravismus and eye
The ball detector that trembles more accurately measures the head position data of patient.By the head position data that will obtain and head position school zero
The head position data of Shi Jilu compare, and obtain relative head position data, that is to say, that the relative head position data are to be with standard header position
Benchmark, head parallactic angle degrees of data of the head position under patient's custom state relative to the standard header position.
In sum, embodiments of the invention have following technique effect：
The embodiment of the present invention affects little to experimenter's natural head posture, can not only improve accurate data degree, additionally it is possible to shorten
Detection time.
Although being described in detail to the present invention above, the invention is not restricted to this, those skilled in the art of the present technique
Various modifications can be carried out with principle of the invention.Therefore, all modifications made according to the principle of the invention, all should be understood to
Fall into protection scope of the present invention.
Claims (10)
1. it is a kind of to look side ways and nystagmus head position detecting method, it is characterised in that to include：
From the intelligent camera being set up in front of experimenter, the experimenter for obtaining the intelligent camera collection draws in doctor
Lead down the head video image during watching sighting target attentively；
By being analyzed to the head video image, determine the subject's head whether in normal place；
When it is determined that the subject's head is in normal place, the head position detector collection of the subject's head will be worn on
The subject's head be in normal place when head position data as standard header position data；
From head position detector, the subject's head that acquisition head position detector is gathered is in habit during conventional location
Used head position data；
According to standard header position data and the custom head position data, the head position deviation data of the experimenter is determined.
2. method according to claim 1, it is characterised in that described by carrying out to the head video image point
Analysis, determines whether the subject's head includes in normal place：
By carrying out recognition of face to the head video image, the special including face of the subject's head video image is determined
Levy point, eye feature point, nose characteristic point, the face characteristic point of ear's characteristic point；
According to the face characteristic point of the subject's head video image, experimenter face whether deflection, head are determined
Whether portion tilts, whether lower jaw lifts or reclaim；
If it is determined that the non-deflection of experimenter face, head does not tilt, lower jaw is not lifted or reclaimed, it is determined that described
Subject's head is in normal place.
3. method according to claim 1, it is characterised in that described from head position detector, obtains the head position
Custom head position data when the subject's head of detector collection is in conventional location include：
One group of custom head position data when obtaining the subject's head in conventional location from head position detector, and calculate
The mean square deviation of group custom head position data, if the mean square deviation is less than predetermined threshold value, the group is accustomed to head position data as having
Effect data；
Repeat the above steps, obtain multigroup valid data, and calculate the mean value of multigroup valid data as described tested
The custom head position data of person.
4. the method according to claim 1-3 any one, it is characterised in that standard header position data include described receiving
Examination person's head is in shoulder inclination angle, angle of mandible and face corner during normal place, and the custom head position data include the experimenter
Head is in shoulder inclination angle, angle of mandible and face corner during conventional location, described according to standard header position data and the habit
Used head position data, determining the head position deviation data of the experimenter includes：
Shoulder inclination angle, angle of mandible and face corner when the subject's head to be in normal place respectively with the subject's head
In conventional location when shoulder inclination angle, angle of mandible and face corner subtract each other, obtain the head position deviation data of the experimenter.
5. it is a kind of to look side ways and nystagmus head position detecting method, it is characterised in that to include：
Using the intelligent camera being set up in front of experimenter, during the collection experimenter watches sighting target attentively under doctor's guiding
Head video image；
By being analyzed to the head video image, determine the subject's head whether in normal place；
If it is determined that the subject's head is in normal place, then the head position detector collection of the subject's head will be worn on
The subject's head be in normal place when head position data as standard header position data；
Using head position detector, the collection subject's head is in custom head position data during conventional location；
According to standard header position data and the custom head position data, the head position deviation data of the experimenter is determined.
6. it is a kind of to look side ways and nystagmus head level detecting apparatus, it is characterised in that to include：
Image capture module, for from the intelligent camera being set up in front of experimenter, obtaining the intelligent camera collection
The experimenter doctor guiding under watch sighting target attentively during head video image；
Image processing module, for by being analyzed to the head video image, determining whether the subject's head is located
In normal place；
Data processing module, for when it is determined that the subject's head is in normal place, experimenter's head will to be worn on
Head position data when the subject's head of the head position detector collection in portion is in normal place as standard header position data, so
Afterwards from head position detector, the subject's head that acquisition head position detector is gathered is in custom during conventional location
Head position data, and according to standard header position data and the custom head position data, determine the head position variation of the experimenter
According to.
7. device according to claim 6, it is characterised in that described image processing module is by the head video figure
As carrying out recognition of face, determine the subject's head video image including face feature point, eye feature point, nose feature
The face characteristic point of point, ear's characteristic point, according to the face characteristic point of the subject's head video image, determines described tested
Person's face whether deflection, whether head tilts, whether lower jaw lifts or reclaim, however, it is determined that experimenter's face is not
Deflection, head do not tilt, lower jaw is not lifted or reclaim, it is determined that the subject's head is in normal place.
8. device according to claim 6, it is characterised in that the data processing module is obtained from head position detector
The subject's head is in one group of custom head position data during conventional location, and calculates the square of the group custom head position data
Difference, if the mean square deviation is less than predetermined threshold value, the group is accustomed to head position data as valid data, repeat the above steps, obtains
To multigroup valid data, and the mean value of multigroup valid data is calculated as custom head position data.
9. the device according to claim 6-8 any one, it is characterised in that standard header position data include described receiving
Examination person's head is in shoulder inclination angle, angle of mandible and face corner during normal place, and the custom head position data include the experimenter
Head is in shoulder inclination angle, angle of mandible and face corner during conventional location, and the data processing module is by the subject's head
Shoulder when shoulder inclination angle, angle of mandible and face corner when normal place is in conventional location with the subject's head respectively inclines
Angle, angle of mandible and face corner subtract each other, and obtain the head position deviation data of the experimenter.
10. it is a kind of to look side ways and nystagmus head position detecting system, it is characterised in that to include：
The intelligent camera being set up in front of experimenter, for gather the experimenter doctor guiding under watch sighting target attentively during
Head video image；
The head position detector of the subject's head is worn on, for gathering the head position data of the experimenter；
Head level detecting apparatus, for by being analyzed to the head video image, determining whether the subject's head is located
In normal place, however, it is determined that the subject's head is in normal place, then by the described tested of head position detector collection
Then head position data when person's head is in normal place obtain the institute of head position detector collection as standard header position data
State subject's head in conventional location when head position data, and according to standard header position data and the custom head digit
According to determining the head position deviation data of the experimenter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203009.8A CN106618580B (en) | 2016-12-23 | 2016-12-23 | Strabismus and nystagmus head position detection method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203009.8A CN106618580B (en) | 2016-12-23 | 2016-12-23 | Strabismus and nystagmus head position detection method, device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106618580A true CN106618580A (en) | 2017-05-10 |
| CN106618580B CN106618580B (en) | 2020-09-15 |
Family
ID=58826583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611203009.8A Active CN106618580B (en) | 2016-12-23 | 2016-12-23 | Strabismus and nystagmus head position detection method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106618580B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822638A (en) * | 2017-11-06 | 2018-03-23 | 郑州市第二人民医院 | One kind strabismus and nystagmus head level detecting apparatus and method |
| CN116035563A (en) * | 2023-03-27 | 2023-05-02 | 北京大学第三医院（北京大学第三临床医学院） | Photographic measurement system for abnormal head position |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094521A (en) * | 1990-11-07 | 1992-03-10 | Vision Research Laboratories | Apparatus for evaluating eye alignment |
| CN201150530Y (en) * | 2008-01-03 | 2008-11-19 | 宫华青 | Head position slant automatic measuring instruments |
| CN101336827A (en) * | 2007-07-04 | 2009-01-07 | 欧姆龙株式会社 | Apparatus, method and program for detecting act of looking aside |
| CN201664297U (en) * | 2010-04-16 | 2010-12-08 | 李雯霖 | Portable nystagmus compensatory head posture twisting angle measuring instrument |
-
2016
- 2016-12-23 CN CN201611203009.8A patent/CN106618580B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094521A (en) * | 1990-11-07 | 1992-03-10 | Vision Research Laboratories | Apparatus for evaluating eye alignment |
| CN101336827A (en) * | 2007-07-04 | 2009-01-07 | 欧姆龙株式会社 | Apparatus, method and program for detecting act of looking aside |
| CN201150530Y (en) * | 2008-01-03 | 2008-11-19 | 宫华青 | Head position slant automatic measuring instruments |
| CN201664297U (en) * | 2010-04-16 | 2010-12-08 | 李雯霖 | Portable nystagmus compensatory head posture twisting angle measuring instrument |
Non-Patent Citations (1)
| Title |
|---|
| 刘国华等: "《儿童常见眼病诊断图谱》", 31 December 2017 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822638A (en) * | 2017-11-06 | 2018-03-23 | 郑州市第二人民医院 | One kind strabismus and nystagmus head level detecting apparatus and method |
| CN116035563A (en) * | 2023-03-27 | 2023-05-02 | 北京大学第三医院（北京大学第三临床医学院） | Photographic measurement system for abnormal head position |
| CN116035563B (en) * | 2023-03-27 | 2023-06-09 | 北京大学第三医院（北京大学第三临床医学院） | Photographic measurement system for abnormal head position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106618580B (en) | 2020-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8690326B2 (en) | Method and systems for measuring interpupillary distance | |
| US10890786B2 (en) | Method and system for determining an adaptive parameter for a spectacle lens accommodated in a spectacle frame | |
| CN107924073B (en) | Determine the view far point of spectacle lens | |
| US10278573B2 (en) | Corrective eyeglasses and method for subjective refraction by a wearer of said eyeglasses | |
| US20160166145A1 (en) | Method for determining ocular measurements using a consumer sensor | |
| US20100149486A1 (en) | Device for measuring the angle between far sight and near sight on a patient wearing spectacles | |
| US20190090781A1 (en) | Sensor calibration considering subject-dependent variables and/or body positions | |
| CN111588353A (en) | Body temperature measuring method | |
| CN106618580A (en) | Strabismus and nystagmus head position detection method, device and system | |
| US20230020160A1 (en) | Method for determining a value of at least one geometrico-morphological parameter of a subject wearing an eyewear | |
| CN107014592B (en) | Safety goggles visual field detection system and detection method | |
| CN217162110U (en) | Dynamic head position measuring equipment | |
| CN106963384B (en) | Compensation head position detection method and device | |
| Kutilek et al. | Methods of measurement and evaluation of eye, head and shoulders position in neurological practice | |
| JP2023549865A (en) | Method and system for measuring binocular distance for children | |
| US10234700B2 (en) | Method for checking the correct assembly of a frame and corrective lenses | |
| CN109965881A (en) | The application method and equipment of non-contact measurement oral cavity opening degree | |
| US11409137B2 (en) | Method and system for determining fitting parameters of an optical equipment with manual identification | |
| US20220221740A1 (en) | Method and device for determining at least an optical feature of a progressive lens to be placed in a frame for vision correction of a subject | |
| CN112587083B (en) | Visual processing method, device and computer storage medium | |
| CN113554609B (en) | Neck dystonia identification system based on vision | |
| KR102258825B1 (en) | Detecting apparatus and method for navigated surgical tool | |
| CN114224328A (en) | Dynamic head position measuring equipment | |
| WO2024008411A1 (en) | Method for calibrating a head-mounted device | |
| de la Torre et al. | Artificial Vision System on Digital Devices for Real-Time Head Tilt Control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211201 Address after: 100034 Beijing city Xicheng District Xishiku Street No. 8 Patentee after: PEKING UNIVERSITY FIRST Hospital Address before: 100034 Beijing city Xicheng District Xishiku Street No. 8 Patentee before: PEKING UNIVERSITY FIRST Hospital Patentee before: Beijing Fengying Technology Co., Ltd |
|
| TR01 | Transfer of patent right |