• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.4
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• pp.87-97
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• 2015

There's a trend towards vitalization of nightscape planning businesses nationally and locally as well for city image making and activation of regional economy, but there is still no systematic nightscape planning going on for lack of relevant researches and objective evaluations. This study aims to suggest the guideline for nightscape planning by conducting an eye tracking experiment and survey for recognizing the characteristics of a nightscape. Furthermore, the authors intended to verify the eye-tracking method as a tool for landscape evaluation. The research site was restricted in the campus of Virginia Tech, VA, and those were selected by experts' survey among various types of nightscape images. The variables for analyzing the characteristics of nightscape images selected were 'preference', 'safety(fear)' and 'clearness'. 'Fixation duration', 'saccade duration', 'scan path length', and 'pupil size' were selected as the eye movement measurements. The results of this study are as follows: The first outcome found was that there were significant differences among the characteristics(preference, safety and clearness) of a nightscape by MANOVA, and these variables were correlated positively by Pearson's correlation. Secondly, there were differences on fixation duration, saccade duration and scan path depending on the nightscape setting statistically. Also, the eye tracking measurement in an open setting was recorded lower than enclosed settings. In the result of a heat map, we found the meaning of the fixated areas on both viewing without intention and viewing intentionally. It turned out that the fixated areas were consistent with the areas the subjects felt preferred and clarity in all of the nightscape images, which means people usually focus on what they prefer and see clearly in a certain nightscape. Based on this result and previous studies, the authors could make a conclusion that eye tracking method can apply to evaluate nightscape settings in terms of analyzing the whole characteristics and finding specific points for the detailed analysis as well. Therefore, these results can contribute by suggesting nightscape planning, implication of the landscape evaluation, and implication of the eye tracking study.

• Journal of Korean language education
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• v.28 no.4
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• pp.39-62
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• 2017

This study is to examine grammar understanding with beginner English speakers according to presentational methods of grammatical content. 18 English-speaking Korean beginners were randomly assigned and divided into two groups. We first examined if there was a statistically significant difference between the two groups in grammar comprehension with and without illustrations. It was found that the group given the presentation illustrations showed greater understanding than the group without them. Second, no statistically significant difference in grammar understanding was found between the groups with and without materials marked for their awareness. Third, no statistically significant difference was found between the groups with the order of presenting content elements related to grammatical items. This study is to affirm the importance of illustrations as a component of Korean textbooks.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.1149-1150
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• 2019

눈은 일상생활을 하기 위한 필수적인 부위로 지속적으로 눈 건강을 관리할 필요가 있다. 최근 눈 건강에 대한 관심이 높아지면서 암순응 이상 탐지의 중요성 또한 부각되고 있지만 암순응을 측정하는 기존 방법들은 시간이 오래 걸리거나 주관적인 가능성이 있다. 이에 본 연구는 사람의 정신적인 활동에 즉각적으로 반응하는 뇌파 변화를 통해 암순응 이상을 탐지하는 시스템을 개발하고자 하였다. 제안한 시스템은 개발한 암순응 측정 환경을 VR기기를 통해 응시하면서 실시간으로 뇌파를 탐지하며 눈이 어두운 환경에 적응하였을 때 나타나는 뇌파의 변화를 감지하여 암순응 이상을 탐지한다. 본 연구를 통해 향후 뇌파측정기와 암순응에 관한 연구에서 다양한 활용 가능성을 보여준다.

• The Journal of the Korea Contents Association
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• v.16 no.12
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• pp.772-780
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• 2016

This study examined the politics of representation about North Korean female defectors in general programming channels. In that channel's programs, the women are established as soften private people who got a lift in capitalism aggressively and as disparate subject that have value to be consumed by mass audience. They are caricatured with the testimony and internal competition, be emphasized that heterogeneous object. General programming channels use the women as easy and cheap substitutes for foreigners, also objectifies them to complies with the patriarchal authority. General programming channels are continuously producing a story to deal with North Korean female defectors in disparate subject. In this way, they owns the time and qualification to talk to the women as objects to be displayed, to ensure the media power. Ultimately, the female defectors is only a consumption subject that being sensuously staring, so they remain 'other' instead of 'us'.

• Journal of the Korean Institute of Landscape Architecture
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• v.46 no.1
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• pp.38-48
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• 2018

The purpose of this study is to improve the understanding of visual perception and to extend the landscape evaluation area by comparing eye-tracking evaluation and landscape adjective evaluation methods towards various type of nightscapes. As a result of the study, it showed that 'blink count', 'fixation duration average', and 'saccade duration average' of eye tracking measurements have a significant correlation with 'beautiful', 'interesting', 'accessible', 'satisfying', and 'safe' regarding landscape adjectives. In addition, there was a tendency toward areas of interests (AOIs) depending on 12 different nightscapes, which showed that the gaze was fixated by focusing on certain landscape elements such as 'door' and 'signs'. These results suggest that the eye-tracking method is an effective tool to specify the evaluation of 'landscape elements' rather than the 'whole landscape' and can be used as a basis to support landscape preference theories, which has been presented as conceptual only. In this way, the results of this study demonstrated the possibility of various applications of eye tracking as an objective landscape evaluation technique, and it is possible to suggest specific implications to landscape planning through the accumulation of continuous research results.

• Journal of The Korean Association For Science Education
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• v.30 no.4
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• pp.452-471
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• 2010

As the Korean College scholastic Ability Test (CSAT) has been implemented for 17 years since 1994, it is becoming more and more difficult to make new items that haven't been previously used to measure students' thinking ability. Therefore, it is necessary to keep conducting research on making new test items that can measure students' scholastic ability reliably. For this reason, multiple choice items on the Japanese university entrance exam, which is a Japanese National Center Test for University Admissions (NCTUA) equivalent of CSAT, were analyzed in order to draw implications for CSAT item development. In this study, we analyzed the Japanese NCTUA administered in January 2009 to investigate the structure of its science test. We also analyzed the NCTUA items by the domains of contents and behaviors, and tried to predict item difficulty from the perspective of Korean applicants. Major findings are as follows: Most NCTUA items measure understanding knowledge or low level thinking ability. Also the alloted time for each item is longer than CSAT. The number of test items, and the number of choice and alloted points for each item are diverse, unlike CSAT. The number of items using real-life materials are much more, but the items are not rigorous in sentence expression compared to CSAT. And the difference of difficulty level among science tests were larger with reference to CSAT. Also science score is required for most applicants regardless whether they are taking liberal arts or going onto the science track.

• Journal of the Korean Institute of Intelligent Systems
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• v.23 no.5
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• pp.423-430
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• 2013

In typical face recognition systems, the frontal view of face is preferred to reduce the complexity of the recognition. Thus individuals may be required to stare into the camera, or the camera should be located so that the frontal images are acquired easily. However these constraints severely restrict the adoption of face recognition to wide applications. To alleviate this problem, in this paper, we address the problem of tracking and recognizing faces in video captured with no environmental control. The face tracker extracts a sequence of the angle/size normalized face images using IVT (Incremental Visual Tracking) algorithm that is known to be robust to changes in appearance. Since no constraints have been imposed between the face direction and the video camera, there will be various poses in face images. Thus the pose is identified using a PCA (Principal Component Analysis)-based pose classifier, and only the pose-matched face images are used to identify person against the pre-built face DB with 5-poses. For face recognition, PCA, (2D)PCA, and $(2D)^2PCA$ algorithms have been tested to compute the recognition rate and the execution time.