• Title/Summary/Keyword: Eye-tracker

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The effect of Empathy in Eye vision to users in Facebook using an Eye Tracker (Eye Tracker를 활용한 페이스북상에서 공감 정도가 사용자 시선에 미치는 영향)

  • Kim, Soowan;Shin, Dong-Hee
    • Journal of Digital Contents Society
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    • v.15 no.3
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    • pp.387-393
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    • 2014
  • This study investigates the worlds most favorite SNS, the Facebook, with the theory of Empathy, that there will be an effect to users due to their characteristics. We approach the data scientifically with using an Eye tracker, by analyzing the vision and attention of users of Facebook with stimuli of whether it's an image or text filled contents in newsfeed of Facebook. With the result of an eye tracker, we cross analyzed with General Empathy Scale to compare that users limit of feeling of empathy gave effect on contents of Facebook. Discussion and implications are discussed in terms of empathy.

Development of Eye Tracker System for Early Childhood (유아용 시선 추적 장치의 개발 연구)

  • Lee, Byungho
    • The Journal of the Korea Contents Association
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    • v.19 no.7
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    • pp.91-98
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    • 2019
  • The purpose of this study was to develop and test an eye tracker focusing on early childhood participants, based on the characteristics of early childhood eye tracking studies. Eye tracking collects eye movement data of the subject, which provides scientific evidence of human cognition and thinking. The researcher built a Do It Yourself eye tracker camera module from general electronic components, and used Viewpoint analysis software from Arrington Research. The researcher compared the eye tracking data between the DIY eye tracker group and Tobii Pro eye tracker group, which provides a professional eye tracking system. Eye tracking data was collected from 52 five-year old children. The average proportion of valid trials between the two groups was compared with t test, and no significant difference was found. This result indicates that the DIY eye tracker can be used to collect valid eye tracking data from young children under certain research environment.

Elementary Teacher's Science Class Analysis using Mobile Eye Tracker (이동형 시선추적기를 활용한 초등교사의 과학 수업 분석)

  • Shin, Won-Sub;Kim, Jang-Hwan;Shin, Dong-Hoon
    • Journal of Korean Elementary Science Education
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    • v.36 no.4
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    • pp.303-315
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    • 2017
  • The purpose of this study is to analyze elementary teachers' science class objectively and quantitatively using Mobile Eye Tracker. The mobile eye tracker is easy to wear in eyeglasses form. And experiments are collected in video form, so it is very useful for realizing objective data of teacher's class situation in real time. Participants in the study were 2 elementary teachers, and they are teaching sixth grade science in Seoul. Participants took a 40-minute class wearing a mobile eye tracker. Eye movements of participants were collected at 60 Hz, and the collected eye movement data were analyzed using SMI BeGaze 3.7. In this study, the area related to the class was set as the area of interest, we analyzed the visual occupancy of teachers. In addition, we analyzed the linguistic interaction between teacher and students. The results of the study are as follows. First, we analyze the visual occupancy of meaningful areas in teaching-learning activities by class stage. Second, the analysis of eye movements when teachers interacted with students showed that teacher A had a high percentage of students' faces, while teacher B had a high visual occupation in areas not related to classes. Third, the linguistic interaction of the participants were analyzed. Analysis areas include questions, attention-focused language, elementary science teaching terminology, daily interaction, humor, and unnecessary words. This study shows that it is possible to analyze elementary science class objectively and quantitatively through analysis of visual occupancy using mobile eye tracking. In addition, it is expected that teachers' visual attention in teaching activities can be used as an index to analyze the form of language interaction.

Developing Head/Eye Tracking System and Sync Verification (헤드/아이 통합 트랙커 개발 및 통합 성능 검증)

  • Kim, Jeong-Ho;Lee, Dae-Woo;Heo, Se-Jong;Park, Chan-Gook;Baek, Kwang-Yul;Bang, Hyo-Choong
    • Journal of Institute of Control, Robotics and Systems
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    • v.16 no.1
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    • pp.90-95
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    • 2010
  • This paper describes the development of integrated head and eye tracker system. Vision based head tracker is performed and it has 7mm error in 300mm translation. The epi-polar method and point matching are used for determining a position of head and rotational degree. High brightness LEDs are installed on helmet and the installed pattern is very important to match the points of stereo system. Eye tracker also uses LED for constant illumination. A Position of gazed object(3m distance) is determined by pupil tracking and eye tracker has 1~5 pixel error. Integration of result data of each tracking system is important. RS-232C communication is applied to integrated system and triggering signal is used for synchronization.

Eye-Tracking on Inservice Elementary Teachers' Interpreting of Science Textbook Tables (과학 교과서의 표를 해석하는 초등교사들의 안구 운동 추적)

  • Choi, Hyun-Dong;Shin, Dong-Hoon
    • Journal of Korean Elementary Science Education
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    • v.31 no.3
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    • pp.358-371
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    • 2012
  • The main purpose of this study was to examine elementary teachers' visual attention that appears in science textbook tables. This paper proposed that teachers' cognitive effectiveness can be different by the presence or absence of the title of tables. The eye fixation data of participants are collected by the eye tracker apparatus. Participants in this study were 10 elementary school teachers and the table on the 2007 revised science textbooks were selected as experimental stimuli. Information about eye-fixations are recorded when subjects are given 4 tables by eye tracker. Eye-fixation time as well as the ratio and the number of fixation can be obtained by using the eye tracker but also we can acquire a significant conclusion through these outcomes. As the result of the experiment, it took less time to interpret in the presence of the title than in the absence of it. However, this result is only effective only for the interpretation of simple stimulus; the presence of title does not influence on fixation time in the analysis of complicated stimulation. This study showed that it is better to insult the title in the tables because it helps teachers to recognize contents of the tables effectively.

Mobile Eye Tracker and for Use of the Same for Revitalizing Studies on Eye Tracking (아이트래킹 연구 활성화를 위한 모바일 아이트래커의 활용)

  • Seo, Eun-Sun
    • The Journal of the Korea Contents Association
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    • v.16 no.12
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    • pp.10-18
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    • 2016
  • The cognitive ability of humans depends much on the vision. 'Vision' refers to the sense that receives stimulus of light through eyes. 'Gaze' refers to a function of a straight line that connects the central point of the pupil and a viewpoint in the external world, and, in general, it means a straight line that connects an object that is viewed and the eyes. There are active studies on the gaze in various academic circles including 'psychology' and 'cognitive linguistics.' As a method to objectively analyze the gaze, studies on 'eye tracking' are revitalized. A device for studies on eye tracking is an 'eye tracker.' As the fields of the study expand from development and analysis of Web pages to analysis of stores, methods of traffic signal processing, transport equipment, analysis of user experiences on image contents, and marketing analysis, there occurs a greater demand for a glasses eye-tracking than that for a fixed eye tracker. This study identifies the overview and characteristics of eye tracking and presents a way for spreading studies on eye tracking.

Development of Real-Time Vision-based Eye-tracker System for Head Mounted Display (영상정보를 이용한 HMD용 실시간 아이트랙커 시스템)

  • Roh, Eun-Jung;Hong, Jin-Sung;Bang, Hyo-Choong
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.35 no.6
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    • pp.539-547
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    • 2007
  • In this paper, development and tests of a real-time eye-tracker system are discussed. The tracker system tracks a user's gaze point through movement of eyes by means of vision-based pupil detection. The vision-based method has an advantage of detecting the exact positions of user's eyes. An infrared camera and a LED are used to acquire a user's pupil image and to extract pupil region, which was hard to extract with software only, from the obtained image, respectively. We develop a pupil-tracking algorithm with Kalman filter and grab the pupil images by using DSP(Digital Signal Processing) system for real-time image processing technique. The real-time eye-tracker system tracks the movements of user's pupils to project their gaze point onto a background image.

A Study on The Gamification Elements of Eye-tracker for Improving Attention Concentration of Children with Quadratic Palsy with Intellectual Disability (지적장애를 동반한 사지마비형 뇌성마비 아동의 주의집중력 향상을 위한 아이트래커기반 게임화 요소 연구)

  • Jeong, Yoona;Woo, Tack
    • Journal of Korea Game Society
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    • v.20 no.4
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    • pp.57-66
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    • 2020
  • In this paper, we analyze the interaction features using eye-tracker and the characteristics of attention concentration of children with intellectual disabilities, and present gamification elements that can be used when designing digital contents for them. For children with quadriplegic cerebral palsy, eye-trackers will increase the accessibility of digital contents. Foreground gamification can be used for selective attention concentration, background gamification and intrinsic motivation to sustain attention concentration, and foreground gamification and extrinsic motivation for mobility.

Effect of Sensory Integration Therapy Combined with Eye Tracker on Sensory Processing and Visual Perception of Children with Developmental Disabilities (아이트래커를 병행한 감각통합치료가 발달장애아동의 감각처리 및 시지각에 미치는 영향)

  • Kwon, So-Hyun;Ahn, Si-Nae
    • The Journal of Korean Academy of Sensory Integration
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    • v.21 no.3
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    • pp.39-53
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    • 2023
  • Objective : The purpose was the effect of sensory integration therapy combined with an eye tracker on the sensory processing and visual perception of children with developmental disabilities. Methods : It was a single-subject study with a multiple baseline design between subjects, and the intervention applied sensory integration therapy combined with an eye tracker. Visual-motor speed and saccadic eye movements were assessed at each session of baseline and intervention periods. As pre- and post-evaluation, sensory profile, Korean-Developmental Test of Visual Perception and Trail Making Test were conducted. The results of each session evaluation and pre- and post-evaluation researched the effectiveness of the intervention through visual analysis and trend line analysis. Results : As a result of the evaluation for each session, the slope of the trend line for all children in visual-motor speed and saccadic eye movement increased sharply during the intervention compared to the baseline. As a result of the pre- and post-evaluation, the sensory processing of movement, body position, and visual changed from more than that of peers to a level similar to that of peers. In visual perception, all children's ability of Visual Closure increased. As a result of Trail Making Test conducted to confirm the improvement of children's visual tracking and visual-motor abilities, all children showed a decrease in performance time after the test compared to before. Conclusion : It was confirmed that sensory integration therapy combined with an eye tracker for developmental disabilities has effect on sensory processing and visual perception. It is expected to play an important role clinically as it can stimulate children's interest and motivation in line with recent technological improvements and the spread of smart devices.

Evaluation of Gaze Depth Estimation using a Wearable Binocular Eye tracker and Machine Learning (착용형 양안 시선추적기와 기계학습을 이용한 시선 초점 거리 추정방법 평가)

  • Shin, Choonsung;Lee, Gun;Kim, Youngmin;Hong, Jisoo;Hong, Sung-Hee;Kang, Hoonjong;Lee, Youngho
    • Journal of the Korea Computer Graphics Society
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    • v.24 no.1
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    • pp.19-26
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    • 2018
  • In this paper, we propose a gaze depth estimation method based on a binocular eye tracker for virtual reality and augmented reality applications. The proposed gaze depth estimation method collects a wide range information of each eye from the eye tracker such as the pupil center, gaze direction, inter pupil distance. It then builds gaze estimation models using Multilayer perceptron which infers gaze depth with respect to the eye tracking information. Finally, we evaluated the gaze depth estimation method with 13 participants in two ways: the performance based on their individual models and the performance based on the generalized model. Through the evaluation, we found that the proposed estimation method recognized gaze depth with 90.1% accuracy for 13 individual participants and with 89.7% accuracy for including all participants.