• Journal of Information Management
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• v.34 no.2
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• pp.67-88
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• 2003

There have been increased interests in information visualization. Information visualization has been considered as a way to summarize textual data so that the users can access large amount of data more efficiently and effectively. However, many information visualization techniques stem from scientific visualization techniques, which might be difficult for the regular users to understand. More importantly, the system models used by most of the information visualization techniques do not have real world counterpart. For example, most of the users do not represent or process the textual data in terms of fisheye view or a topological map. This means that there is no affordance on the current information visualization systems from the users point of view. In this paper, we analyzed this problem by using the user interface design principles to point out what lacks in the current information visualization systems. More specifically, we have applied Nielson's Heuristic Evaluation technique to review four representative information visualization techniques. The analysis results confirmed our original hypothesis on why the current information visualization systems are not part of the mainstream information systems. Finally, we suggested to invest more efforts in improving the currently prevalent and familiar bullet list type textual information presentation method based on the usability studies and the intelligent content analysis.

• Korean Journal of Remote Sensing
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• v.30 no.1
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• pp.1-12
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• 2014

The purpose of this paper is to provide a compact overview of the state-of-art image mosaic algorithms in commercial softwares and to propose objective assessment method of that. Among them, several algorithms, widely used and high quality, result in the mosaic image by applying to seven different kinds of seasons of KOMPSAT-2 images and then consequently each result is analyzed visually. Moreover, quality index is suggested to assess the similarity with colors regarding adjacency images and then it is performed by comparing and analyzing the visual and quantitative results. Consequently, we found out the suggested quality index is feasible.

• Science of Emotion and Sensibility
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• v.3 no.2
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• pp.67-74
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• 2000

본 연구는 주거환경에 대한 시각 감성을 대표하는 어휘를 선발하기 위해 수행되었다. 어휘수집의 첫 단계에서는 주거환경 중 시각 환경에 대한 감성을 표현하는 어휘 235개를 수집하였다. 두 번째 단계에서는 수집된 어휘를 다른 피험자들에게 제시하여 주거 환경의 분위기를 나타내는 어휘 로서 적절함의 정도를 7점 척도로 표시하도록 하여 매우 적절하다고 판단된 24개의 어휘를 선발하였다. 세 번째 단계에서는 이들 어휘를 무선 적으로 두 개씩 짝을 지어 두 단어가 유사한 정도를 7점 척도로 평가하도록 하였다. 이 설문으로부터 나온 데이터에 대해 요인분석, 군집분석, 다차원분석을 실시하여 시각적 주거환경에 대한 9개의 감성어휘를 추출하였다. 이와 함께 최종 단계에서 연구자들이 400여장의 실물 사진 열람을 통해 추출된 9개의 감성 어휘가 실제 시각적 주거환경을 나타내는 데에 적함한지를 다시 한번 검증하여 다음과 같은 10개의 어휘를 선발하였다. ‘안락한’, ‘개방적인’, ‘세련된’, ‘경쾌한’, ‘개성적인’, ‘단순한’, ‘화려한’, ‘중후한’, ‘고풍스로운’, ‘전원적인’.

• Proceedings of the Korea Society of Costume Conference
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• 2003.05a
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• pp.46-46
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• 2003

본 연구에서는 20∼50대의 남녀를 대상으로 중년 남성의 의복디자인에 따른 시각효과를 연상디자인적인 면에서 고찰하여 중년남성의 체형에 가장 적합한 의복디자인을 규명하는 것에 그 목적을 두었다. 중년남성의 체형을 균형화 시키는 연상디자인 시각효과를 유발시킬 수 있는 신사복 정장의 형태를 파악하기 위해 일반적으로 중년남성이 외출복으로 착용하는 정장스타일의 수트를 선정하여 의복디자인의 형태구성요인이 다르게 조합된 연상디자인 시각효과를 분석한다. 그리하여 체형결점을 보완할 수 있는 의복의 형태구성요인을 파악하여 사회적 상황에서 중년남성들이 표출하고 싶은 시각적 느낌을 효과적으로 드러낼 수 있는 체형에 대해서 적절하며 또한 효과적인 의복디자인을 제시하고자한다. 또한, 이와 관련된 소재에 따른 시각적 평가가 다르게 이루어질 것으로 판단되어 소재별 시각효과, 여밈 및 단추 수의 변화, 체형에 따른 시각효과의 차이에 관해서 알아보고자 하였다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.10
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• pp.1270-1275
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• 2016

Recently, the entertainment programs with vocal skills assessment through the broadcasting and cable broadcasting have become very popular. But, in spite of higher popularity, present performance evaluation methods including musical sympathy of the pop singers and plain performers in broadcastings are absolutely dependent on the subjective feelings of audience assessors who evaluate the musical sympathy in these programs. For solving this problem, quantitative methods instead of subjective methods in the entertainment industries for evaluating pop singer's performance and musical sympathy are taken as important issues and social demands. For this, in this paper, we propose a visual and quantitative evaluation method by applying ICT technologies that can be evaluated in all areas of musical sympathy as well as a singer's assessment.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.11
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• pp.1696-1707
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• 2021

With the recent growth of information technology, various literacy such as digital literacy, data literacy, AI literacy is being studied. In this paper, we focus on data visualization literacy as visualization is an essential part of big data analysis and is used in several mobile apps. Visualization Literacy Assessment Test(VLAT) was developed in 2016 and we introduce how the test was developed and modified to a Korean version, K-VLAT. K-VLAT is consisted of 12 visualizations and 53 questions through a website. Additionally, to understand the research trend in visualization literacy we analyzed 81 papers that had cited the VLAT publication. We categorized the research into 4 categories with 11 sub-categories. The area of studies visualization literacy related to was understanding the relation with cognition, expanding the literacy measures, relation with education, utilization for developing user-centric dashboards or using the test to show effectiveness of visualizations. At last, we discuss about different ways to utilize K-VLAT for future research.

• The Journal of the Korea Contents Association
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• v.21 no.2
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• pp.474-488
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• 2021

The application of Augmented Reality(AR) technology is visible in medical procedures, education, marketing, and journalism. By experimenting, this study examines how the evaluation of the three elements of augmented reality news contents(visual image, storytelling, interactivity) affects immersion and information acquisition. Specifically, a 2 (video technology: AR vs. general) × 2 (news type: disaster vs. sports) between-subject design was examined. Results showed that the evaluation of all three elements was higher when viewing AR news than when viewing general news. The level of immersion was higher when viewing AR news, and the evaluation of storytelling and interactivity had positive effect on the level of immersion regardless of the news types. However, the evaluation of visual images did not affect the level of immersion. Information acquisition was higher after viewing AR news, yet the effect of the evaluation of the three elements on information acquisition had not been found. Implication and discussion of the study were added in the end.

• Journal of Korea Entertainment Industry Association
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• v.13 no.8
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• pp.505-514
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• 2019

The purpose of this study is to analyze the difference of the visual perception and attention of the people with intellectual disability from the application of the assessment applying an electronic media and traditional paper material. The study subjects were 12 people with intellectual disability, To assess the visual perception, the motor free visual perception test-3 was used and the trail making test was used to assess the visual attention. After the assessment of the visual perception and attention applying the traditional paper material, the assessment applying the electronic media. The results of the visual perception and attention showed the difference of the visual perception and attention, and the scores of the visual perception and attention applying the assessment of the electronic media showed the more higher than the assessment of the traditional paper material. The electronic media could be worked as a factor to increase the visual perception and attention of the people with intellectual disability. Thus, the difference should be considered to apply the electronic media for them.

• 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.

• Archives of design research
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• v.17 no.2
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• pp.301-310
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• 2004

The purpose of this study is to propose the basic guideline of the environmental sculptures to improve the quality level of the urban surroundings. The concept of the environmental sculptures was established and their roles in urban street scenary were investigated. And then, the relationships between the visual satisfaction and the elements which affect the visual harmony of Urban street scenary were analysed. The result of this study can be summarized as follows; The visual satisfaction was shown high at the sculptures itself with good shape and esthetic sense, and the harmony among the surroundings was estimated highly at the sculptures of good harmony with the floor surface, building and the elements surrounded it. And the highest satisfaction was shown at the scenary with the dean images and visual stability. The correlation of the degree of satisfaction with 5 variables which effect the satisfaction of urban streetscape shows that the harmony of shape is the most important variable for urban street scenary.