• Title/Summary/Keyword: Gaze point

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Changes in Eyebrow Position and Movement with Aging

  • Park, Jeongseob;Yun, Sangho;Son, Daegu
    • Archives of Plastic Surgery
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    • v.44 no.1
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    • pp.65-71
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    • 2017
  • Background This study evaluated dynamic changes in eyebrow position related to aging. Methods Female participants were recruited and separated into two groups aged 20-30 years (the younger group, n=20; mean age, 24.8 years) and 50-70 years (the older group, n=20; mean age, 55.8 years). Photogrammetry was used to determine the eyebrow position at the medial canthus (MC), lateral limbus, lateral canthus, and lateral end point (EP) for 6 actions: smooth opening (the reference action) and closing of the eye, forward gaze, maximum opening and closing of the eye, and maximum frown. Videos were also recorded. Results No differences in eyebrow position were detected at the MC when opening or closing the eyes smoothly, gazing straight ahead, or closing the eyes maximally. For all 6 actions, the position of the lateral EP in the older group was significantly lower than in the younger group (P=0.003), and the smallest degree of vertical movement at this point was found in both age groups (P<0.001). Vertical movement at the 4 landmarks of the eyebrows decreased with aging. Conclusions Eyebrow position was unchanged at the MC with aging, except at maximal eye opening and maximal frown. No differences in eyebrow position were observed between the younger and older groups when eyes were maximally closed, except at the EP. It is important to focus on correction of the lateral EP for periorbital rejuvenation.

The Development of Human-mobile communication system (E-mobile system) Using EOG (ElectroOculoGraphy)

  • K., Youngmin;D., Nakju;Y., Youngil;C., Wankyun
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.266-266
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    • 2000
  • This paper relates to develop the human-mobile interface system using saccadic eye movements as an aid to the disabled. EOG(ElectroOculoGraphy) method is used to measure the potentials of rapid eye movements because the method is not expensive and the device is simple. But because the resolution and accuracy of this signal are not good, the algorithm to remove the drifting, using ideal velocity shape, is applied to process the signals. The mobile robot (POSTUR-II) used in this system was developed in Robot & Bio-mechatronics laboratory in POSTECH and has the tele-operation system for the tele-communication with a main computer. Our Research is to help the physically disabled except his eye movements to operate some works with the mobile. Our Results about the system's possibility will be showed by some experimental tests giving the point information to the mobile by eye-gaze.

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Non-contact Eye Gaze Point Estimation System by Mapping of Corneal Reflections (각막 반사의 매핑을 이용한 비접촉식 눈의 응시점 추정 시스템)

  • Yoo, Dong-Hyun;Chung, Myung-Jin
    • Proceedings of the KIEE Conference
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    • 2001.07d
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    • pp.2352-2354
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    • 2001
  • 본 논문에서는 컴퓨터의 사용자가 모니터의 스크린 상의 어느 곳을 바라보고 있는지 추정하는 새로운 알고리즘을 제시한다. 적외선 LED와 CCD카메라를 이용하는 이 방법은 기존의 방법과 다르게 5개의 적외선 LED를 사용하는데 적외선의 반사에 의해 눈의 각막에는 네 개의 밝은 점들이 나타나고 이 점을 꼭지점으로 하는 사각형 안에서 동공의 중심이 움직인다는 사실을 이용한다. 이 방법은 눈의 3차원 위치, 카메라의 위치, 모니터의 위치에 따른 관계식을 구할 필요 없이 간단한 계산으로 눈의 응시점을 찾아낼 수 있다는 장점을 가지고 있다. 여기서는 이 방법을 소개하고 실험결과를 보여준다.

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A Study on the Characteristics of Visual Perception by eye movement - Through the comparison of original space and Rotated Space - (시선이동에 따른 실내공간의 주시특성에 관한 연구 - 원공간과 전회공간의 비교를 통해 -)

  • Choi, Gae-Young;Kim, Jong-Ha;Lee, Jeong-Ho
    • Korean Institute of Interior Design Journal
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    • v.18 no.4
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    • pp.71-78
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    • 2009
  • This study analyzed the observation characteristics on space by analyzing through the visual perception experiment to the image dates from the original space and the rotated space of it. The results of this study are as fellow as: First, most frequently observed points were, lower end mainly from the center was more observed in the original space while upper end mainly from the center was more observed in the rotated space. Therefore, it is able for us to learn whether the space has the same design, the length of time focusing on one point differentiates as the image rotates. Second, differentiation in observation part, as shown in the case study, can be seen as a consequence of changes in perspective composition. The test indicates that when a design is presented to an observer, the observer's examining point would vary according to where the indoor perspective drawing places a vanishing point. Third, in zones I and II, observation was focused on lower end in the original picture while on the rotated picture there were more focus on the upper end and perpendicularity view of the indoor. Fourth, this study analyzed the mean value of the observation part. As one method wants to see how to change the observation characteristics by rotating the original space, few deviation from the mean value will be interpret to have similar observation characteristics over all even if it has the differences of watching place by rotated space.

A Study Regarding Head Image′s Through Fashion Collection (패션컬렉션에 나타난 Head Image 연구)

  • 김애경;이경희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.27 no.8
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    • pp.904-912
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    • 2003
  • This study for‘Head Image’, which is affected by individual Image, is via fashion collection to analyze formative feature, fashion emotion and meaning structure of emotion and to inquire into correlation. I will offer fundamental data, which is can use Image making from the state of thing. First, to make charm and personal image, if we consider Head image well, it will very effective by the reason that personality and charm operate as important factors in fashion sensibility of Head Image. Second, we can know Head Image has more strong influence the part of emotion than fashion sensibility by showing that the sense of emotion is higher than this point of view of fashion sensibility in Head Image. Third, As a result of the correlation of fashion sensibility and emotion in Head Image, personal Head Image is effective to attract public gaze by causing negative emotion, and attractive Head Image is effective to give pleasant feeling by causing positive emotion. Forth, Avant-garde, Punk, Kitsch Image were estimated as the most personal things and Romantic, Ethnic Image were estimated as the most attractive things of the type of Head Image. Natural Image was estimated as the most feminine thing, and Elegant Image was estimated as the most mature thing. Fifth, when we look into the different appraisals between experts and amateurs about fashion sensibility and emotion of Head Image, a selection of experts are used to peculiar and strong Head Image, so amateurs respond it more sensitively and highly evaluate.

Iconological Analysis on Woman and Clothes of Richard Avedon's and Cindy Sherman's Photography (Richard Avedon과 Cindy Sherman 사진에 표현된 여성과 복식에 대한 도상학적 해석)

  • Yun, Ji-Young
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.1
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    • pp.115-126
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    • 2009
  • This study is about the iconological analysis on woman and clothes of Richard Avedon's and Cindy Sherman's constructed photographies which have questioned about life and existence of woman and present new visions about woman in comtemporary society and culture. The woman in R. Avedon's disguises herself with clothes, while the woman in C. Sherman's changes herself depending on the circumstances. R. Avedon reveals the inside of woman and ego with his gaze. The woman in his photography is reborn as another-self and communicates with the viewer through her eyes. C. Sherman has cast doubts with a woman's point of view in the way of making herself as an object in her works. C. Sherman has presented a new way of thinking about woman's body and ego. The viewer gives feminity and identity to the woman in C. Sherman's photography who has kept asking a question about woman-herself. The identity of woman in the photography has been changed depending on what she is wearing, what she is doing and where she is. Like this, the clothes which she puts on becomes another-self and also expresses life and dignity of the woman.

The Exploration of the Dialectical Interface of Other and Subject: A Reading of Christina Rossetti's "Goblin Market" (대타자와 주체의 변증법적 인터페이스 탐색 -크리스티나 로제티의 「도깨비 시장」 읽기)

  • Kim, Kyung-Soon
    • Journal of English Language & Literature
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    • v.53 no.2
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    • pp.219-241
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    • 2007
  • This study takes its point of departure from Lacanian psychoanalysis and explores the point that an irremediable gap in the human subject can be illuminated in terms of the Lacanian categories, fantasy, symptom, gaze or voice as cause of desire of the Other. With respect to the category of the symptom, Lacan claims that the Other is always already there in the constitution of the subject, that is, the relation of the subject to the Other that is overwhelming as well as attracting the subject. Chapter II deals with the unthought, excessive ground of the conscious that borders on the subject, as is the case of self-excentric aspect of the man. Indeed, in Lacan's early work, the subject is essentially a relationship to the Other as desire(objet petit a), and there is no such thing as a symptom or fantasy without some subjective involvement. Lacanian unknown real, perpetual excess as the cause of desire animates the subject even as it threatens to blast it apart. The structures that establish the lines of desire in every individual are derived from an ineluctably intersubjective field. The Other is always already there in the constitution of the subject. In the final years of Lacan's teaching we find a kind of universalization of the symptom and almost everything that is becomes in a way symptom. Symptom, embodied in Laura in "Goblin Market," is her only substance, the only positive support of her being. By looking at the Laura's symptom in chapter III we gain an insight into the forbidden domain, into a real space that should be left unseen and unthought. The voice of goblin men therefore functions as a sublime object that is animating as well as dominating element even as it threatens to disintegrate the subject. Objet petit a as a sublime object that must be excluded in reality returns in the real, taking on a certain materiality which has an effect on Laura, that is, animates Laura's desire. Objet petit a is a real object, signifying nothing. In conclusion, the theoretical importance of Lacanian psychoanalysis is the relation between a subject and an Other as Objet petit a.

Spatial Information Search Features Shown in Eye Fixations and Saccades (시선의 고정과 도약에 나타난 공간정보 탐색 특성)

  • Kim, Jong-Ha
    • Korean Institute of Interior Design Journal
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    • v.26 no.2
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    • pp.22-32
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    • 2017
  • This research is to analyze the spatial information search features which shown by Eye fixation and movement and conducted eye tracking experiment for targeting sports shop spatial images which it are same but looks different. This is able to find out the eye movement feature according to placement of goods from the eye movement and movement distance of spatial visitor, and the result can be defined as following. First, the whole original-reverse left / right images have a higher number of observations in the [IN] area than in the [OUT] area. This is because after eye taking high observations in LA area of [IN] have been jump-over [OUT], performed search activities in low eye fixation without high eye fixation. Second, there was a difference in the frequency of the observation data as the composition of the images changed. The original image has been often fixed the eyes in LA area, and the one that has been observed for a long time is reverse left / right image. Also, fixation point was shown higher at the reverse left / right image as jump-over from [OUT] area to [IN] area. If LA area seen as reverse left / right image, it is located in right-hand side. The case where the dominant area is on the right side has a characteristic that the eye fixation is longer. This can be understand that the arrangement of products for attract the customer's attention in the commercial space might be more effective when it is on the right side. Third, the moving distance(IN ${\rightarrow}$ OUT) of the sight pointed to external from LA area was long in the both original-reverse left / right images, but it is no relation with search direction([IN${\rightarrow}$OUT] [IN${\rightarrow}$OUT]) of the sight. In other words, the sight that entered in LA area can be seen as visual perception activity for re-searching after big jump-over, in the case go in to outward (OUT area) after searching for more than certain time. The fact that the moving distance of eye is relatively short in the [IN ${\rightarrow}$ OUT] process considered as that the gaze that stays outside the LA area naturally enters in to LA area.

Parafovea Information Processing of Adults and Adolescents in Reading: Diffusion Model Analysis on Distributions of Eye Fixation Durations (글읽기에서 나타난 성인과 청소년의 중심와주변 정보처리: 고정시간 분포에 대한 확산모형 분석)

  • Choo, Hyeree;Koh, Sungryong
    • Korean Journal of Cognitive Science
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    • v.31 no.4
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    • pp.103-136
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    • 2020
  • This study compares the parafovea preview effect of adolescent group and adult group with different ages using eye tracking experiment. Also, this study confirms that the starting point parameter of the one boundary diffusion model can explain the data obtained through eye tracking experiments. In two experiments, parafoveal information processing was examined using the boundary technique. In Experiment 1, reading times were compared between the conditions given high frequency words preview versus masking preview. In Experiment 2, the condition in which low frequency words were given to parafovea preview information and the condition in which parafovea preview was masked were compared. We found that both the adolescent group and the adult group showed a parafovea preview effect. Also, first fixation, single fixation, and gaze duration of the two groups were different based on the word property shown in the parafovea. The first fixation data obtained in the two experiments were divided into quantiles and fitted into one boundary diffusion model. From the results, we argue that the parafovea preview information processing in the reading was described as the starting point parameter of the one boundary diffusion model.

Robust Eye Region Discrimination and Eye Tracking to the Environmental Changes (환경변화에 강인한 눈 영역 분리 및 안구 추적에 관한 연구)

  • Kim, Byoung-Kyun;Lee, Wang-Heon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.18 no.5
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    • pp.1171-1176
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    • 2014
  • The eye-tracking [ET] is used on the human computer interaction [HCI] analysing the movement status as well as finding the gaze direction of the eye by tracking pupil's movement on a human face. Nowadays, the ET is widely used not only in market analysis by taking advantage of pupil tracking, but also in grasping intention, and there have been lots of researches on the ET. Although the vision based ET is known as convenient in application point of view, however, not robust in changing environment such as illumination, geometrical rotation, occlusion and scale changes. This paper proposes two steps in the ET, at first, face and eye regions are discriminated by Haar classifier on the face, and then the pupils from the discriminated eye regions are tracked by CAMShift as well as Template matching. We proved the usefulness of the proposed algorithm by lots of real experiments in changing environment such as illumination as well as rotation and scale changes.