• 디지털융복합연구
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• 제18권10호
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• pp.137-146
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• 2020

미래의 불확실성이 높을수록 회사의 경영자의 고민은 커지는데, 이러한 불확실성을 해소할 수 있는 핵심 열쇠로 창의성을 꼽을 수 있다. 본 연구는 비즈니스 문제 해결 창의성(Business Problem Solving Creativity, BPSC)과 기업 의사결정자의 개방적 성향 간의 관계에 대해 확인하고, 주의력이 BPSC와 개방적 성향 간의 조절 효과를 갖는지 아이트래킹 기법으로 확인한다. 주의력 측정을 위해 '문제 해결과 무관한 정보처리 과정'(IRP)을 개발하였다. 연구결과, 의사결정자의 개방적 성향과 BPSC는 양의 상관관계가 있음을 입증하였으며, 기존의 창의성 연구와는 달리 주의력은 개방적 성향과 BPSC 간의 부의 조절 효과가 있음을 입증하였다. 본 연구는 BPSC는 빠르게 변화하는 경영 환경에서 문제를 해결하는 의사결정자의 창의적 능력이나 성과를 측정하는 행동과학 연구로 실무적 가치가 높다. 또한, 기업 의사결정자의 성향과 BPSC와의 상관성을 입증하여, BPSC 발현의 심리적 메커니즘을 규명함으로써 경영학 창의성 연구에 기여하였다.

• 한국항해학회지
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• 제24권1호
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• pp.13-22
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• 2000

The collisions at sea among marine casualties are not reduced as the tonnage and speed of ship's increase as well as the traffic quantity increase at sea, in spite of the improvement of nautical equipment, enforcement of crew's education and training as well as improvement of quality standard according to the implementation of ISM code. The measures to prevent the collisions at sea are simple, and are composed of six stage.: The first stage is that the officer on duty detect the target from his eye or radar information. The second stage is determining the type and kind of target-ship. The third stage is target tracking; calculation of target speed, course, CPA and TCPA from radar information or visual check. The fourth stage is determination of vessel in danger after calculation of third stage. The fifth stage is the judgement of situation if own ship is stand-on or give way vessel according to the 1972 COLREG. The last stage is to carry out proper action according to 1972 COLREG, under the circumstances. But by the case, the situations are so different under the different external conditions; for example, natural/navigational conditions, crew's human factors, ship's particular, rule or regulation, management system on board, the condition of watch keeping. Therefore the reasons and casualties are so complicated. This study aims to investigate the collision casualty at sea which needs to clarity all these causal factors of afore-mentioned, and to analyze the causes of problems so as to utilize them to establish the measures of preventing marine accidents. This study, described the concepts of causal factors into three groups; environmental factor, and company/on board management system and navigator's act. Also described how to investigate and analyzes the casual factors. Even though it was described in this paper how to detect the causal factors and reasons of collisions, and how to analyze the inter-relation of each causal factors, it is necessary to do further study how to analyze between the liability of concerned parties and the casual factors involved.

• 정보과학회 논문지
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• 제42권7호
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• pp.910-918
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• 2015

본 논문에서는 조영증강 초음파영상의 분석과정에서 육안판별의 한계를 극복하기 위한 파라미터 가시화기법을 소개하고, 이 과정에서 영상의 왜곡과 노이즈를 보정하기 위한 방법론을 제시한다. 초음파영상에서 조영제의 전이형태에 대한 동적패턴은 간질환 진단에서 의미있는 파라미터가 되는데, 전이시간 정보와 조영증강 패턴을 정적인 단일영상으로 표현함으로써 급속도로 진행되는 동영상에서 정확한 정보를 효과적으로 판별할 수 있게 한다. 진단파라미터 데이터의 신뢰도를 저하시키는 요인으로 호흡에 의한 흔들림현상과 마이크로 버블에 의한 노이즈를 들 수 있다. 이에 대한 대안으로 영상의 움직임추적을 위한 다단계 알고리즘과 마르코프 랜덤 필드 모델에 기반한 영상개선기법을 제안한다. 실제 임상데이터를 사용한 실험결과를 통하여, 제안된 방법의 유용성을 실험적으로 고찰한다.

• 한국정보통신학회논문지
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• 제11권10호
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• pp.1835-1844
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• 2007

최근 가상현실을 활용한 학습이 점차 그 효율성 이 입증되고 있다. 그러나 대부분의 가상현실 교육환경 에서 는 학습자 주의를 환기시키고 나아가 기억의 향상을 높이는 설계가 크게 논의되지 않았다. 따라서 본 연구에서는 학습자 주의를 끌 수 있는 다섯 가지 자극의 주요 이벤트로 구성된 가상환경에서 피험자 17명에게 Guided Search Task과 Exploration Task 방식으로 학습순서를 달리 제공하면서 뇌파, 심전도, 피부저항도, 시선 추적의 생체신호와 가상환경에서 사용자 행태를 통하여 학습 시 주의상태를 살펴보았다. 그리고 실험 후 설문조사를 통하여 학습자의 기억내용을 분석 해 보았다. 본 논문은 실험에서 사용된 교육용 가상해저생태계 환경을 먼저 서술하고, 실험설계와 환경 및 방법을 설명 한 후, 전 구간과 이벤트 중심의 10초 단위 구간으로 나누어 가상환경 에서 학습자의 주의 상태와 학습 후 기억하는 내용을 심층 분석한 결과를 토론한다.

• Journal of the Optical Society of Korea
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• 제5권2호
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• pp.55-59
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• 2001

Results of an experimental study of possible ways to extend the capabilities of a big size transmission type holographic screen are presented. Different approaches to the problem of making a big size screen have been considered and tested experimentally. Up to 60$\times$80 $\textrm{cm}^2$ screens have been recorded on a single photographic plate VRP-M. By attaching a mirror behind the screen, the reflection mode of operation has been obtained. In this arrangement some additional peculiarities appear in the screen, which can be used to extend the screen capabilities. The first possibility is to increase the screen size by mosaicking the subscreens in the reflection mode of operation. Screens of 120$\times$80 $\textrm{cm}^2$ and 180$\times$40 $\textrm{cm}^2$ have been obtained by proper alignment of 60$\times$40 $\textrm{cm}^2$ subscreens. The second possibility is to move the viewing Bone by rotation of the screen together with the mirror and thereby realize by the eye-tracking capability. Methods of increasing vertical size of the viewing zone have been considered. Along with the multi-exposure method, which was considered in previous papers, addition of the vertical diffuser with the optimized scattering angle has been tested experimentally. The vertical size of the viewing zone has been increased by up to 10-15 cm. Another method consists of usage of a diffraction grating with vertical dispersion to solve the same problem.

• 디지털융복합연구
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• 제17권4호
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• pp.261-266
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• 2019

본 연구는 구글 머티리얼 디자인의 컴포넌트인 플로팅 액션 버튼 중 오른쪽 하단 표준형의 사용 실태와 효율성을 파악하고 올바른 사용법을 제안하는 것을 목적으로 한다. 1차는 사례 연구로 서비스별 플로팅 액션 버튼의 사용 실태와 장단점을 조사했다. 2차로 스마트폰 이용자 12명을 대상으로 한 아이트래킹 실험과 심층 인터뷰를 진행하였다. 그 결과, 플로팅 액션 버튼은 직관적인 디자인으로 사용자들의 이목을 끌어 특정 액션을 유도할 수 있는 것으로 나타났다. 그러나 사용자들의 시선은 대부분 상단에 머무르며 인터페이스가 상단에 배치되는 것을 선호하는 것으로 조사되었다. 해당 컴포넌트로 긍정적인 사용자 경험을 주기 위해서는 콘텐츠의 가림 정도, 사용자들의 애플리케이션 사용 행동 및 경향 등을 고려할 필요가 있다. 이 연구는 플로팅 버튼의 올바른 사용법을 제기하는 데 의의가 있다.

• 대한건축학회논문집:계획계
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• 제36권5호
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• pp.83-91
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• 2020

Environmental conditions are known to impact human health and behavior, emotions such as pleasure, anxiety, and depression, and reduce stress. Interior design that elevates emotional comfort and satisfaction can help improve mental health and well-being. This study is a systematic review that analyzed previous empirical studies that explored the effect of interior design elements on the user's emotional response which is quantitatively evaluated by bio-signal and qualitatively evaluated through self-reported questionnaire surveys. This paper aims to derive the attributes of interior design and biometric indicators that affect the user's positive emotion through the synthesis of previous studies and to confirm the feasibility of measuring bio-signals as an objective evaluation tool for architectural design and as a quantitative research method. As a result of the review, the biometric data from EEG, fMRI, ECG, EMG, GSR, and eye-tracking were used to measure the participants' emotional responses, which were manifested as positive or negative depending on certain attributes of interior design such as the form, color, lighting, material and furniture. The attributes of interior design related to the positive emotional response were the curved shape, high ceiling, openness of space, and subdued tone colors. Standard lighting conditions and wooden spaces were related to stress reduction in terms of comfort and relaxation. The free arrangement of furniture was related to the user's positive emotions. On the other hand, consistent experimental protocols could not be found, and although the sample sizes of the studies were small, the studies have demonstrated the feasibility of the emotional response measurement by using the biometric data. Therefore this method can be a useful objective tool in the measurement of human-centric data in architectural design, and to develop the evidence-based design to induce positive emotions and minimize stress.

• 한국정보통신학회논문지
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• 제23권12호
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• pp.1492-1499
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• 2019

이 논문에서는 적응적 패럴랙스 베리어 방식에서, 시청영역을 제어할 수 있도록 사용자의 위치를 추적하는 방법을 제안한다. 얼굴자세에 강건한 양안거리 측정을 위해, 형태모델과 랜드마크 기반인 CLM으로 자세를 추정한다. 카메라와의 상관관계로, 거리와 수평위치를 거리로 변환한다. 사용자의 눈의 위치에 따라 적응적 패럴랙스 베리어의 화소간격을 조정하고, 베리어를 이동해 시청영역을 조정한다. 이 논문에서는 60cm부터 490cm의 범위에서 사용자를 추적하는 방법을 제안하고, 카메라 영상의 해상도에 따른 에러, 측정 가능 범위, fps를 측정하였다. 그 결과, 사용자를 평균 3.1642cm의 절대오차 범위내로 측정 가능하였으며, 영상의 해상도에 따라 320×240에서 약 278cm, 640×480에서 약 488cm까지, 그리고 1280×960에서 약 493cm까지를 측정할 수 있었다.

• Advances in Computational Design
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• 제7권2호
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• pp.139-151
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• 2022

The article is devoted to the actual problem of studying the possibilities of implementing personalization of the user interface in accordance with the personality psychotypes. The psychological aspect of user interface design tools is studied and the correspondence of their application to the manifestations of personality psychotypes is established. The results of the distribu-tion of attention of users of these categories on the course page of the educational platform are presented and the distribution of attention in accordance with the focus on educational material is analyzed. Individual features and personal preferences regarding the used design tools are described, namely the use of accent colors in interface design, the application of the prin-ciples of typographic hierarchy, and so on. In accordance with this, the prospects for implementing personalization of the user interface of the educational platform are described. The results of the study allow us to state the relevance of developing and applying personalization of the user interface of an educational platform to improve learning outcomes in accordance with the psychological impact of individual design tools, and taking into account certain features of user categories. The research is devoted to the study of user attention concentration using heatmaps, in particular based on eyetreking technology, we will investigate the distribution of user attention on the course page of an educational platform Ta redistribution of atten-tion in accordance with certain categories of personality psychotypes. The results of the study can be used to rearrange the LMS Moodle interface according to the user's psychotype to achieve the best concentration on the training material. The obtained data are the basis for developing effective user interfaces for personalizing educational platforms to improve the quality of the education.

• Journal of Audiology & Otology
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• 제23권1호
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• pp.53-58
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• 2019

Background and Objectives: The aim of the present study was to assess the feasibility of a PC-based facial asymmetry assessment program (PC-FAAP) and to compare the results of PC-FAAP with subjective regional scoring by raters in acute unilateral peripheral facial nerve paralysis (FNP). Subjects and Methods: Participants were divided into 3 groups with 8 participants per group: group I, normal; group II, mild to moderate FNP; and group III, severe FNP. Using the PC-FAAP, the mouth asymmetry ratio (MAR), eyebrow asymmetry ratio (EAR), and complete eye closure asymmetry ratio (CAR) were calculated by comparing the movement of tracking points on both sides. The FNP grading scale (FGS) integrated each score, and the scores were weighted with a ratio of 5:3:2 (MAR:CAR:EAR). Subjective regional scoring was measured on a 0-100 scale score by three otologists. PC-FAAP and subjective scoring were compared in each group regarding the consistency of the results. Results: The mean scores of the MAR, EAR, CAR, and FGS of each group were significantly different. PC-FAAP showed significant differences between the three groups in terms of MAR, EAC, CAR, and FGS. PC-FAAP showed more consistent results than subjective assessment (p<0.001). The PC-FAAP was significantly more consistent in group I and group III (p<0.001 and p=0.002, respectively). FGS in group III was the only parameter that showed a more consistent result in PC-FAAP than the subjective scoring (p=0.008). Conclusions: An FNP grading system using a PC-based program may provide more consistent results, especially for severe forms.