• 제목/요약/키워드: Eye movements

검색결과 205건 처리시간 0.019초

눈과 손 움직임을 이용한 프레스 작업에서 인간실수 분석 (Human Error Analysis in Press Task using Eye and Hand Movements)

  • 김유창
    • 대한안전경영과학회지
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    • 제1권1호
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    • pp.55-60
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    • 1999
  • Presses are very widely used in industrial and commercial companies and are often the source of serious accidents occurring during operation. In Korea, the press holds the first place in the industrial hazard machines for frequency of accidents. Most of the press accidents are due to the human error. Continuous recordings of eye and hand movements that included operating errors of five experienced subjects were made during the press operation. The results showed that significant differences were observed on eye fixation time, hand fixation time, and lead departure time between the operations that has errors and no errors. The result could be used as basic data to establish a guideline for preventing the accidents.

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초등과학 교육연구에서 시선추적 연구방법의 고찰 (A Review of Eye-tracking Method in Elementary Science Education Research)

  • 신원섭
    • 한국초등과학교육학회지:초등과학교육
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    • 제35권3호
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    • pp.288-304
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    • 2016
  • The purpose of this study is a review of previous studies and principles of eye-tracking techniques that are actively applied in recent elementary science education. Also it proposes to utilize the direction of eye tracking techniques in elementary science education research. Recent eye-tracking technology was developed, using the infrared pupil and the corneal reflection can be safely and accurately track the eye movements of the participants. Eye tracking has the advantage of higher temporal resolution, accessibility, convenience, objectivity, stability and safety. Analysis of the previous studies, there was a difference in the study design and analysis. The workshops and seminars are needed for accurate understanding of eye-tracking method in elementary science education research. In conclusion, the eye-tracking can be utilized such as effectiveness analysis of teaching materials and media, behaviors analysis of teachers and students in a real class, cognitive strategies and attention analysis of the student, discriminating tool of various education evaluation, etc.

프레스 작업에서 눈과 손의 협응동작에 대한 연구 (Eye-hand coordination in press task)

  • 박경수;김유창
    • 대한인간공학회지
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    • 제16권1호
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    • pp.63-71
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    • 1997
  • This paper presented an experiment which examined eye and hand movement characteristics of novice and experienced workers in the press operation. Continuous recordings of eye and hand movements were made on five novice operators and five experienced operators in press operation. Significant difference between the novice and the experienced operators was observed in eye fixation time, eye movement patterns, hand dwell time, and eye-hand coordination. Also, differences were observed in spatial distribution of eye fixations during the die-closing portion of a stroke. There were no significant differences between the novice and the experiencedoperators in the eye and the hand movement time. The results could be used to establish a guide determining the method and training period to train the novice operators.

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도시주변 능선녹지를 배경으로 하는 아파트 경관의 시각적 영향 - 물리적 경관변수 및 와시점분석에 의한 다각적 접근- (Assessing Landscape Impacts of Apartment Complex on Suburban Hilly Openspace; Multilateral Approach by Analysis of Physical Landscape Variables and Eye Fixation Movements)

  • 최윤;조동범
    • 한국조경학회지
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    • 제22권2호
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    • pp.81-103
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    • 1994
  • In recent years, the visual characteristics of natural open space and greenbelt surrounding the urban landscapes have been changed with sprawling of residential areas and highrised residential buildings. Since these natural areas being the background element of residential areas are topographically sloped mountains in many cities. It is easy to be seen in the distance and it is important to preserve these areas as a visual infrastructure of the urban landscape. The purposes of this study are to extract the factors of landscape impact evaluation for these areas and to clarify the physical landscape variables representing these factors, and to infer the visual-perceptional relationships between image and landscape variables. As results, conceptional three factors were extracted with semantic differential evaluation to classified 18 landscape slide, and three regression models were established with factor score of landscapes and physical variables measured in photographs. On the basis of these relationships, visual-perceptional characteristics were discussed by analyzing the data form eye-movement recording to each of landscapes. The factors of "spatial unfolding of backdropped hilly greenspace", "horizontal quence of residential buildings", and "landscape complexity" prove to be important. And it prove important variables of "skyline of mountainous ridge" and "visual edge of building structure" in regression models and eye fixation movements.

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원근방향 추적 눈 운동 시 참조자극이 자극운동 유도 표면의 삼차원 경사지각 왜곡에 미치는 효과 (Effect of reference on the distortion of 3D slant perception of semitransparent motion-induced surface during disjunctive eye movement)

  • 이형철
    • 인지과학
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    • 제14권3호
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    • pp.51-59
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    • 2003
  • 눈 운동과 관련된 공간지각 왜곡이 다양하게 보고 되었는데, 대부분의 공간지각 왜곡이 두 눈이 동일한 방향으로 움직이는 눈 운동에 국한되어 연구되었다. 이형철, 감기택, 김은수와 윤장한 (2002)은 두 눈이 각기 반대 방향으로 움직이는 원근방향 추적 눈 운동 동안에 시공간적인 중첩패턴에 의해 정의되는 대상의 경사가 체계적으로 왜곡되어 지각된다는 것을 보고하였다. 본 연구에서는 배경과 대상이 상이한 명도를 갖는 반투명 대상의 경사가 원근방향 추적 눈 운동에 의해 왜곡되어 지각되는지를 검증하였고, 동시에 목표대상의 주위에 존재하는 참조자극이 경사지각 왜곡에 미치는 영향을 검증하였다.

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2007·2009 개정 초등 과학 교과서 '우리 몸의 구조와 기능' 단원의 편집디자인에 따른 초등학생들의 시각적 주의 분석 (Analysis of Elementary School Students' Visual Attention on the Editorial Design of 'Structure and Function of Our Body' in the 2007·2009 Revised Elementary Science Textbook)

  • 신원섭
    • 한국초등과학교육학회지:초등과학교육
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    • 제36권4호
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    • pp.428-438
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    • 2017
  • The purpose of this study is to analyze the visual attention of elementary school students according to the editorial design of the 2007 2009 revised elementary science textbook 'Structure and function of our body'. For this purpose, eye movements were collected while elementary school students were watching real textbooks wearing mobile eye tracker. The BeGaze 3.7 program of SMI company was used analyzing eye movements. Twenty-six elementary school students participated voluntarily in mobile tracking research. Elementary students learned the contents of textbook related to 'digestive organ' and 'respiratory organ' by using double reading learning strategy. The results of this study are as follows. First, as a result of pre- and post-knowledge tests, there was no statistically significant difference in learning effect between 2007 revised and 2009 revised textbook editing design. Second, elementary school students tended to give more visual attention to text than textbook illustrations. Third, the selective attention and persistent attention of elementary students showed a very strong positive correlation (.940), but the selective attention and self-control showed a strong positive correlation (.499). Fourth, students with high level of attention and low level showed high visual occupancy in text than in illustrations. Fifth, elementary school students preferred the 2009 revised science textbook to the 2007 revised.

Eye Dominance and Reading Speed

  • Chen, Ai-Hong;Mustapha, Nurfazliha;Rahman, Muhamad Irwan
    • 한국안광학회지
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    • 제16권3호
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    • pp.333-338
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    • 2011
  • Purpose: The aim of this study was to investigate eye dominance and reading performance based on eye movements and reading speed. Methods: The eye dominance of 30 subjects was determined using the sighting test (hole formed by hands). The subjects were asked to read the numerical reading material aloud in English from left to right and from right to left at random. The number of saccades, regressions, and inter-fixations per minute was calculated using Visual-Oculography (VOG) and the reading speed was recorded as number of characters per minute using stopwatch. Results: No significant differences in reading speed among right and left eye dominant subjects as they read from left to right and right to left directions (p>0.05). However, left eye dominant subjects were found to read significantly faster compared to right eye dominant subjects in both directions of reading (p<0.05). In term of eye movement patterns, no significant differences in saccades, regressions, and inter-fixations per minute were found between subjects with right eye dominance and left eye dominance for both reading directions (p>0.05). Conclusions: Reading performance in term of eye movement and speed was not affected by eye dominance, but subjects with left eye dominance read faster than subjects with right eye dominance.

자세·움직임 정상화 및 안구운동 프로그램이 뇌성마비아동의 안구운동 기능에 미치는 효과 (The Effects of the Postural Movement Normalization and Eye Movement Program on the Oculomotor Ability of Children With Cerebral Palsy)

  • 한동욱;공남호
    • 한국전문물리치료학회지
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    • 제14권3호
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    • pp.32-40
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    • 2007
  • Although many children with cerebral palsy have problems with their eye movements available data on its intervention is minimal. The purpose of the study was to determine the effectiveness of the postural movement normalization and eye movement program on the oculomotor ability of children with cerebral palsy. Twenty-four children with cerebral palsy (12 male and 12 female), aged between 10 and 12, were invited to partake in this study. The subjects were randomly allocated to two groups: an experimental group received the postural movement normalization and eye movement program and a control group which received conventional therapy without the eye movement program. Each subject received intervention three times a week for twelve weeks. The final measurement was the ocular motor computerized test before and after treatment sessions through an independent assessor. Differences between the experimental group and control group were determined by assessing changes in oculomotor ability using analysis of covariance (ANCOVA). The changes of visual fixation (p<.01), saccadic eye movement (p<.01) and pursuit eye movement (p<.01) were significantly higher in the experimental group than in the control group. These results show that the postural movement normalization and eye movement program may be helpful to treat children with cerebral palsy who lose normal physical and eye movement.

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Eye Perception Difference Between the Conservative and the Liberal : Verification of Personal Tendency using Eye-tracking Machine

  • Kwon, Mahnwoo
    • 한국멀티미디어학회논문지
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    • 제24권8호
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    • pp.1171-1177
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    • 2021
  • Measuring and evaluation of audience's visual message perception are crucial process for scientific production of visual content. This study tried to evaluate the difference of viewer's awareness of visual object depends on his or her inherent characteristics like conservatism using an eye tracker system. Especially, this experiment tested research questions about positive correlation between conservatism and peoples' eye movements following the sound visual messages. 57 subjects participated in the test. Two different groups were exposed to two visual elements representing 'the conservative' and 'the liberal'. The results showed that people tended to have different way of seeing visual objects according to their inherent characteristics. Also by comparing the gaze time at the object and area of interest(AOI) in visual, this study is able to verify the existence of 'positive way of seeing' and 'negative way of seeing'. The two different ways of seeing have their own trail of eye movement.

도시가로환경 구성요소의 우선순위에 관한 연구 - 아이트래킹 실험을 통한 관심영역설정 분석을 중심으로 - (A Study on the Priorities of Urban Street Environment Components - Focusing on An Analysis of AOI (Area of Interest) Setup through An Eye-tracking Experiment -)

  • 이선화;이창노
    • 한국실내디자인학회논문집
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    • 제25권1호
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    • pp.73-80
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    • 2016
  • Street is the most fundamental component of city and place to promote diverse actions of people. Pedestrians gaze at various street environments. A visual gaze means that there are interesting elements and these elements need to be preferentially improved in the street environment improvement project. Therefore, this study aims to set up the priorities of street environment components by analyzing eye movements from a pedestrian perspective. In this study, street environment components were classified into road, street facility, building(facade) and sky and as street environment images, three "Streets of Youth" situated in Gwangbok-ro, Seomyeon and Busan University of Busan were selected. The experiment targeted 30 males and females in their twenties to forties. After setting the angle of sight through a calibration test, an eye-tracking experiment regarding the three images was conducted. Lastly, the subjects were asked to fill in questionnaires. The following three conclusions were obtained from the results of the eye-tracking experiment and the survey. First, building was the top priority of street environment components and it was followed by street facility, road and sky. Second, as components to be regarded as important, fast 'Sequence', many 'Fixation Counts' and 'Visit Counts', short 'Time to First Fixation' and long 'Fixation Duration' and 'Visit Duration' were preferred. Third, after voluntary eye movements, the subjects recognized the objects with the highest gaze frequency and the lowest gaze frequency.