WO2019172503A1 - Dispositif d'évaluation de défaut de champ visuel par oculométrie, procédé d'évaluation de défaut de champ visuel l'utilisant, et support de stockage lisible par ordinateur - Google Patents

Dispositif d'évaluation de défaut de champ visuel par oculométrie, procédé d'évaluation de défaut de champ visuel l'utilisant, et support de stockage lisible par ordinateur Download PDF

Info

Publication number
WO2019172503A1
WO2019172503A1 PCT/KR2018/013625 KR2018013625W WO2019172503A1 WO 2019172503 A1 WO2019172503 A1 WO 2019172503A1 KR 2018013625 W KR2018013625 W KR 2018013625W WO 2019172503 A1 WO2019172503 A1 WO 2019172503A1
Authority
WO
WIPO (PCT)
Prior art keywords
visual field
marker
evaluation
expressed
eye
Prior art date
Application number
PCT/KR2018/013625
Other languages
English (en)
Korean (ko)
Inventor
김병조
윤영욱
이찬녕
Original Assignee
고려대학교 산학협력단
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020180126464A external-priority patent/KR102259462B1/ko
Application filed by 고려대학교 산학협력단 filed Critical 고려대학교 산학협력단
Publication of WO2019172503A1 publication Critical patent/WO2019172503A1/fr

Links

Images

Classifications

    • 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
    • A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography

Definitions

  • the present invention relates to an apparatus for evaluating visual disturbances through eye tracking and a method for evaluating visual disturbances using the same, and more specifically, a marker for visually evaluating visual disturbances by introducing eye tracking technology to express subjects according to a predetermined pattern.
  • the present invention relates to an apparatus for assessing visual disturbances through eye tracking and to a method for evaluating visual disturbances using the same, which can determine visual acuity disorders by tracking and analyzing eye movements.
  • Visual field refers to the range of periphery that can be seen at the same time while looking at a certain target with one eye. Visual field examination plays an important role in determining the degree of optic nerve damage in optic neuropathy and in diagnosing, discriminating and observing central nervous system diseases. Do it.
  • Existing vision measuring device is to fix the head of the subject and the subject looks at a point in the center of the front, while keeping the eyes fixed to present a point at various unspecified points of the front and press the button when the subject recognizes the point. Measure your field of view.
  • the conventional visual measuring device has the inconvenience that the subject needs to fix the head while the visual field measurement is performed, and there is a limitation that the subject can provide accurate results only when the subject continuously watches the point. In other words, the conventional visual measuring instrument is more likely to cause an error in visual field measurement if the subject does not fix their eyes during the inspection.
  • An object of the present invention is to provide an apparatus for visual field disorder evaluation through eye tracking and a method for assessing visual field disorder using the same, which can determine visual field disorder of a visual field subject by tracking and analyzing eye movement of the visual field subject.
  • the apparatus for visual field disorder evaluation through eye tracking a display unit for providing a marker that is expressed according to a predetermined pattern;
  • An image acquiring unit acquiring an eye image of a subject of visual field evaluation looking at the marker; And providing a signal for expressing a marker according to the predetermined pattern to the display unit, and receiving and analyzing an eye image of the visual field subject, which is obtained by the image acquisition unit, to evaluate the visual field of the visual field subject.
  • It may include a visual field evaluation unit.
  • the visual disturbance evaluation method providing a marker that is expressed according to a predetermined pattern through the display unit; Acquiring an eye image of a subject of visual field evaluation according to the expression of the marker through an image acquiring unit, and extracting pupil position information from the acquired eye image; And matching the pupil position information with the position information of the marker to determine whether the pupil reacts within the predetermined range with respect to the expressed marker, and evaluating the visual field of the visual field subject.
  • a marker is provided according to a predetermined pattern through a display provided to be spaced apart from both eyes of a subject by a predetermined distance, and the eye movement according to the subject of the subject by assessing the visual field is observed. And track and analyze to determine visual field impairment.
  • the visual disturbance can be evaluated in a comfortable posture without having to fix the subject's head to evaluate the visual disturbance, thereby reducing the discomfort of the subject in the visual disturbance evaluation process.
  • the subject's gaze is not fixed to one point, but rather by looking at a marker moving according to a predetermined pattern, thereby eliminating the difficulty of continuously fixing the subject's gaze to one point. By reducing the likelihood of errors in the examination, more accurate visual disturbance evaluation results can be provided.
  • the visual field evaluation subject evaluates the visual disturbance in consideration of eye position information and reaction speed as the visual evaluation subject looks at the marker moving according to a predetermined pattern, thereby detecting that the visual field subject evaluates the visual disorder falsely. This can provide more accurate visual disturbance evaluation results.
  • FIG. 1 is a block diagram of an apparatus for evaluating visual field disorder through eye tracking according to an embodiment of the present invention.
  • FIG. 2 is an exemplary diagram of a movement path of a marker expressed according to a predetermined pattern according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for evaluating visual field disorder through eye tracking according to an embodiment of the present invention.
  • components expressed as means for performing the functions described in the detailed description include all types of software including, for example, a combination of circuit elements or firmware / microcode, etc. that perform the functions. It is intended to include all methods of performing a function which are combined with appropriate circuitry for executing the software to perform the function.
  • the invention, as defined by these claims, is equivalent to what is understood from this specification, as any means capable of providing such functionality, as the functionality provided by the various enumerated means are combined, and in any manner required by the claims. It should be understood that.
  • FIG. 1 is a block diagram of an apparatus for evaluating visual field disorder through eye tracking according to an embodiment of the present invention
  • FIG. 2 is an exemplary diagram of a movement path of a marker expressed according to a predetermined pattern according to an embodiment of the present invention.
  • the apparatus 100 for assessing visual disturbance through eye tracking may include a display 110, a visual field evaluator 120, and an image acquirer 130. It is configured to include.
  • the display unit 110 is to provide a marker M to be observed by the subject of visual field evaluation in a visual field disorder evaluation process.
  • the display unit 110 may be provided to be spaced apart from both eyes of the subject to be evaluated by a predetermined distance.
  • a head mounted display HMD
  • smart glass smart goggles
  • It may be implemented in a form in which both eyes and the display of the visual evaluation subject are spaced apart by a predetermined distance regardless of the movement of the visual evaluation subject.
  • the visual field assessment subject can evaluate the visual field disorder in a comfortable posture without having to fix the head for visual field disorder evaluation, thereby reducing the discomfort of the subject in the visual field evaluation process.
  • the display unit 100 moves together with the subject's head, thereby eliminating the need to consider errors due to the movement.
  • the display 110 may have a wireless communication function, and may receive a signal for expressing the marker M according to a predetermined pattern from the visual field evaluation unit 120 to be described later.
  • the image acquisition unit 130 is for acquiring an eye image of the subject of visual field evaluation while the subject of visual field evaluation observes a marker expressed according to a predetermined pattern through the display unit 110. Can be.
  • the image acquirer 130 may be integrally formed with the display 110.
  • the eyeball image obtained by the image acquirer 130 may be provided in the display 110.
  • the wireless communication function may be transmitted to the visual field evaluation unit 120 to be described later.
  • the image acquisition unit 130 is not limited to being integrally formed with the display unit 110, and each component may be formed separately.
  • the image acquirer 130 may include a wireless communication function to transmit the obtained eyeball image to the visual field evaluator 120.
  • the visual field evaluation unit 120 provides a signal for expressing the marker M according to a predetermined pattern on the display 110, and the visual field obtained by the image acquisition unit 130 while the marker M is expressed.
  • the wireless communication module 121 is for performing wireless communication between the visual field evaluation unit 120 and other components (for example, the display 110 and the image acquisition unit 130).
  • the marker providing module 122 provides a signal for expressing the marker M in the virtual circle C of the display 110 based on a predetermined pattern of the marker M to be expressed and each position information of the marker. do.
  • the marker M is preferably formed in a point shape that is most general and does not burden the visual field, but the shape is not limited thereto.
  • the color and brightness of the marker M may be variously set.
  • FIG. 2 only a virtual circle corresponding to the left eye of the display unit 110 is illustrated, and the marker M may be equally applied to both eyes.
  • the predetermined pattern of the marker M provided by the marker providing module 122 starts at the center A of the virtual circle C in which the marker M is provided to the display 110.
  • the expression from the first peripheral position back to the true center of the virtual circle, and then to the second peripheral position different from the first peripheral position may be repeated.
  • the marker M may be expressed as A ⁇ 1 ⁇ A ⁇ 2 ⁇ A ⁇ 3 starting from the center A of the imaginary circle C.
  • the marker M is expressed at a random random distance in the radial direction and at a random angle that is not constant in the circumferential direction so that the subject of the visual field evaluation cannot predict the position of the marker to be expressed. You will be able to judge more effectively if you respond appropriately.
  • the marker M provided in one cycle may be repeatedly provided at least three times. For example, if the marker M is provided less than three times, it is difficult to properly evaluate the marker when the subject of the visual evaluation loses the movement of the marker instantaneously regardless of the degree of the visual evaluation of the user. This can happen. In addition, when the number of times the marker M is repeated increases, the time required for visual field evaluation may be excessive. Therefore, the marker M may be repeatedly provided at an appropriate number of times according to the visual field evaluator and the implementation form of the visual field evaluation device.
  • the eye tracking module 123 obtains the eyeball image obtained in real time through the image acquisition unit 130 from the display 110 through the wireless communication module 121 and extracts the movement path of the pupil in real time.
  • the eye tracking module 123 extracts the pupil from the eyeball image obtained through the image acquisition unit 130 in real time, extracts the pupil position information corresponding to the virtual circle from the extracted pupil, and extracts the pupil movement path in real time. Extract.
  • the visual field evaluation module 124 matches the pupil position information extracted by the eye tracking module 123 with the position information of the marker M provided to the display 110, and is preset for the marker M in which the pupil is expressed.
  • the visual field of the visual field evaluation subject is evaluated by discriminating whether or not it reacts within the range.
  • the predetermined range refers to the position of the pupil that can be viewed as a medically normal category with respect to the expressed marker M, and may be a value set in consideration of individual deviation.
  • the marker providing module 122 repeatedly implements only the marker M information that fails to properly respond as a result of visual field evaluation by the visual field evaluation module 124, and the visual field evaluation module 124 provides additional information. Through this, it is possible to determine whether the subject of visual evaluation simply misses moving along the marker M or visual field disorder, thereby providing more accurate results.
  • the visual field evaluation module 124 may further determine the visual disturbance of the visual field evaluation subject by further considering the movement reaction speed of the eye.
  • a rapid movement of eyes to see a point is called a saccade.
  • the incubation period is about 200 msec until the object is recognized and the actual eye movement occurs, and the speed of eye movement reaches up to about 700 ° / sec.
  • the secondary saccade occurs after the saccade that moves quickly to the nearest point of the target point. This movement is normally matched to the target by the saccade within three times.
  • the proposed target point is not recognized. Therefore, the eye movement is maintained without moving from the center point, or the eye movement is unstable in an unspecified direction to find the target point.
  • Speed is outside the normal range. In addition, even if the movement in the direction of the target point occurs at a normal range of speed, if three or more saccades occur to match the exact target point, this may not be a visual impairment but may be judged as an abnormal finding suggesting other cerebral lesions.
  • the visual field evaluation module 124 reacts to the marker (M) in which the pupil is expressed within a preset range, the saccade for observing the marker (M) outside the preset speed range or expressing the expression of the movement of the eyeball.
  • the number of times is more than a predetermined number of times (for example, 3 to 5 or more times), it may be determined that the visual field is suspected.
  • FIG. 3 is a flowchart of a method for evaluating visual field disorder through eye tracking according to an embodiment of the present invention.
  • a visual disturbance evaluation method for evaluating visual disturbance of a visual evaluation subject using eye tracking using a display unit provides a marker step (S100), eye tracking step It comprises a (S200) and the visual field evaluation step (S300).
  • the marker is expressed in a virtual circle of the display unit according to a pattern preset to the visual evaluation subject wearing the display unit.
  • the marker is formed of dots, and the predetermined pattern is expressed in the peripheral position starting from the center of the virtual circle provided on the display unit, and is expressed in the center of the virtual circle again from the peripheral position and then different from the peripheral position. It may be to be expressed as. In this case, the marker may be repeatedly provided at least three times.
  • the eye tracking step (S200) the eye of the subject of visual field evaluation, which moves according to the expression of the marker, is captured by the image acquisition unit, and the pupil position information is extracted from the captured eye image to extract the movement path of the pupil.
  • the visual field evaluation step S300 matches the position information of the pupil extracted in the eye tracking step S200 with the position information of the marker provided in the marker providing step S100 to react to the marker in which the pupil is expressed within a predetermined range.
  • the visual field of the visual field evaluation subject is evaluated by discriminating.
  • the marker providing step (S100) is repeatedly performed only on the marker information that fails to properly respond as a result of the field evaluation by the field evaluation step (S300), and the eye tracking step (S200) and the field evaluation step (S300) are additionally performed.
  • the eye tracking step (S200) and the field evaluation step (S300) are additionally performed.
  • the point is not tracked, it can be determined that there is a visual impairment at that point.
  • the same point is presented at least three times at an unspecified time in the entire target point presentation sequence, and if it does not recognize the point repeatedly and does not cause eye movement to that point, it is judged abnormal. It is determined that there is a visual impairment at this point. These impaired points are displayed to indicate the overall visually impaired area.
  • the visual field evaluation step (S300) may determine whether the visual field of the subjects visual field disorder in consideration of the eye movement reaction speed in addition to the pupil position information. Specifically, the visual field evaluation step (S300) is to observe the marker (M) is out of the preset speed range or expressed expression even if the reaction to the marker (M) pupil expressed within a predetermined range If the number of saccades is more than a preset number, it may be determined as a suspected visual disturbance.
  • a computer-readable storage medium having instructions executable by a processor for executing each step of the method for evaluating visual field disorder through eye tracking as shown in FIG. 3 may be provided. have.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Human Computer Interaction (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un dispositif d'évaluation de défaut de champ visuel par oculométrie qui peut comprendre : une unité d'affichage pour fournir un marqueur qui se manifeste selon un motif préconfiguré ; une unité d'acquisition d'image pour acquérir une image d'œil d'un sujet d'évaluation de champ visuel regardant le marqueur ; et une unité d'évaluation de champ visuel pour fournir à l'unité d'affichage un signal pour que se manifeste un marqueur selon le motif préconfiguré, et la réception et l'analyse de l'image de l'œil du sujet d'évaluation de champ visuel, qui est acquise par l'unité d'acquisition d'image, ce qui permet d'évaluer un champ visuel du sujet d'évaluation de champ visuel.
PCT/KR2018/013625 2018-03-05 2018-11-09 Dispositif d'évaluation de défaut de champ visuel par oculométrie, procédé d'évaluation de défaut de champ visuel l'utilisant, et support de stockage lisible par ordinateur WO2019172503A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180025925 2018-03-05
KR10-2018-0025925 2018-03-05
KR10-2018-0126464 2018-10-23
KR1020180126464A KR102259462B1 (ko) 2018-03-05 2018-10-23 안구추적을 통한 시야장애 평가 장치, 이를 이용한 시야장애 평가 방법 및 컴퓨터 판독 가능한 저장 매체

Publications (1)

Publication Number Publication Date
WO2019172503A1 true WO2019172503A1 (fr) 2019-09-12

Family

ID=67846144

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/013625 WO2019172503A1 (fr) 2018-03-05 2018-11-09 Dispositif d'évaluation de défaut de champ visuel par oculométrie, procédé d'évaluation de défaut de champ visuel l'utilisant, et support de stockage lisible par ordinateur

Country Status (1)

Country Link
WO (1) WO2019172503A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111179308A (zh) * 2019-12-17 2020-05-19 清华大学 一种基于视觉伺服的果蝇跟踪方法及系统
CN114569056A (zh) * 2022-01-28 2022-06-03 首都医科大学附属北京天坛医院 眼球检测和视觉模拟设备以及眼球检测以及视觉模拟方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000009139A (ko) * 1998-07-21 2000-02-15 구자홍 헤드 마운트 디스플레이의 사시 테스트장치
JP2010094493A (ja) * 2008-09-22 2010-04-30 Koichi Kikuchi 視認情景に対する視認者情感判定装置
JP2010099335A (ja) * 2008-10-24 2010-05-06 National Institute Of Advanced Industrial Science & Technology 立体視機能検査方法
KR20160099140A (ko) * 2015-02-11 2016-08-22 울산과학기술원 치매의 자가 조기 진단 및 훈련을 위한 안구 운동 및 지각 기능 기반 가상현실 시스템
KR20170045149A (ko) * 2014-05-09 2017-04-26 아이플루언스, 인크. 실제 및 가상의 객체와 인터페이싱하기 위한 생체기계학-기반의 안구 신호를 위한 시스템 및 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000009139A (ko) * 1998-07-21 2000-02-15 구자홍 헤드 마운트 디스플레이의 사시 테스트장치
JP2010094493A (ja) * 2008-09-22 2010-04-30 Koichi Kikuchi 視認情景に対する視認者情感判定装置
JP2010099335A (ja) * 2008-10-24 2010-05-06 National Institute Of Advanced Industrial Science & Technology 立体視機能検査方法
KR20170045149A (ko) * 2014-05-09 2017-04-26 아이플루언스, 인크. 실제 및 가상의 객체와 인터페이싱하기 위한 생체기계학-기반의 안구 신호를 위한 시스템 및 방법
KR20160099140A (ko) * 2015-02-11 2016-08-22 울산과학기술원 치매의 자가 조기 진단 및 훈련을 위한 안구 운동 및 지각 기능 기반 가상현실 시스템

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111179308A (zh) * 2019-12-17 2020-05-19 清华大学 一种基于视觉伺服的果蝇跟踪方法及系统
CN111179308B (zh) * 2019-12-17 2022-10-11 清华大学 一种基于视觉伺服的果蝇跟踪方法及系统
CN114569056A (zh) * 2022-01-28 2022-06-03 首都医科大学附属北京天坛医院 眼球检测和视觉模拟设备以及眼球检测以及视觉模拟方法
CN114569056B (zh) * 2022-01-28 2022-11-15 首都医科大学附属北京天坛医院 眼球检测和视觉模拟设备以及眼球检测以及视觉模拟方法

Similar Documents

Publication Publication Date Title
US9301675B2 (en) Method and apparatus for validating testing procedures in objective ophthalmic eye testing for eye evaluation applications requiring subject compliance with eye fixation to a visual target
US9004687B2 (en) Eye tracking headset and system for neuropsychological testing including the detection of brain damage
JP7106569B2 (ja) ユーザーの健康状態を評価するシステム
US11607160B2 (en) System and method for multi modal deception test scored by machine learning
WO2018169330A1 (fr) Systèmes et procédés permettant de déterminer des défauts dans le champ visuel d'un utilisateur
KR102259462B1 (ko) 안구추적을 통한 시야장애 평가 장치, 이를 이용한 시야장애 평가 방법 및 컴퓨터 판독 가능한 저장 매체
WO2016114496A1 (fr) Procédé procurant une interface utilisateur au moyen d'un affichage porté sur la tête, utilisant la reconnaisance oculaire et un biosignal, appareil l'utilisant et support d'enregistrement lisible par ordinateur
WO2019172503A1 (fr) Dispositif d'évaluation de défaut de champ visuel par oculométrie, procédé d'évaluation de défaut de champ visuel l'utilisant, et support de stockage lisible par ordinateur
KR20200103397A (ko) 생체 신호 센서 탑재 hmd 기기를 활용한 사용자의 스트레스 분석 및 개인 정신건강 관리 시스템 및 방법
US20210315453A1 (en) Visual field examination method and system based on virtual reality
KR102295587B1 (ko) 가상현실 기반의 시야검사 방법 및 시스템
KR102304369B1 (ko) Vr을 이용한 안과검사방법 및 시스템
WO2020235940A1 (fr) Appareil, procédé et système de mesure d'exophtalmie à l'aide d'une caméra de profondeur 3d
WO2014011014A1 (fr) Appareil ophtalmique, et méthode de mesure d'un site de traitement pour l'appareil
KR102250999B1 (ko) 시야장애 평가 및 안구 운동장애 평가 결과에 기반한 뇌병변 진단 장치
US11779214B2 (en) Systems and methods for measuring and classifying ocular misalignment
Porac et al. Monocular asymmetries in recognition after an eye movement: Sighting dominance and dextrality
WO2020235837A1 (fr) Dispositif de surveillance d'épilepsie et système de surveillance d'épilepsie
KR102170499B1 (ko) 검안용 헤드 마운티드 디스플레이 장치
WO2022145607A1 (fr) Dispositif et procédé d'évaluation de la fonction visuelle par rapport au réflexe pupillaire
WO2020209401A1 (fr) Appareil d'imagerie oculaire
WO2024101673A1 (fr) Système et procédé d'analyse de réponses physiologiques à un stress dû à la chaleur
WO2023204516A1 (fr) Appareil et procédé de test de champ visuel
US11839429B2 (en) System and process for the quantification of ocular dominance
EP4029455A1 (fr) Dispositif de mesure de balancement de position de tête, procédé de mesure de balancement de position de tête et système d'acquisition d'informations biologiques utilisant ledit dispositif et procédé

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18908714

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18908714

Country of ref document: EP

Kind code of ref document: A1