모바일 위젯 사용자의 감성요소 연구

조봉화(Bong Hwa Jo),황민철(Min Cheol Whang),김용우(Yong Woo Kim),김지혜(Ji Hye Kim),박재언(Jae Un Park),문성철(Sung Chul Mun) 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5

This study was to suggest emotional factors in mobile widgets. Participants were 30 undergraduates (18 males and 12 females), aged from 23 to 29 years (M=25, SD=2.05). AIO lifestyle surveys were carried out to extract emotion-denoting adjectives in mobile widgets. The extracted emotion words were classified according to visceral, behavioral, symbolic levels (Norman, 2004). Similarity rating of the emotion words was made on a 1-to-5-Likert scale. 7 representative emotion words were drawn out by the factor analysis procedure. They were mapped into the two dimensional space by multidimensional scaling procedure. Functional factors in mobile widgets were defined according to characteristics of mobile contents. The mapped emotion words were tried to link up with the functional factors. This study determined major factors significantly related to the representative emotions elicited in mobile widgets. The findings in this study are expected to be a guideline that can maximize affective satisfaction of users in mobile widgets.

포스터 세션 : 터치 인터페이스를 이용한 음향효과 재생 시스템 개발

안상민,황민철,김범선,박종현,이승욱,임영규,장지은,조봉화 한국감성과학회 2009 추계학술대회 Vol.2009 No.-

본 연구는 터치 인터페이스를 이용하여 음향 효과 재생 시스템을 개발하였다. 터치 인터페이스를 통하여 손의 위치를 인식하고, 해당 위치에 가상의 공을 생성한다. 움직임을 통하여 시각적 피드백과 음향효과를 발생시킨다. 사용자는 오브젝트의 크기와 위치를 조정하여 창조적인 음향 효과를 얻을 수 있다. 따라서 본 시스템은 터치 인터페이스를 이용하여 사용자와 시·청각적 상호작용을 할 수 있는 인터페이스를 제안한다.

포스터 세션 : 감성 공학적 접근에 의한 터치폰의 자유 드로잉 GUI에 대한 연구

김지혜,황민철,김종화,우진철,김치중,김용우,조봉화 한국감성과학회 2009 추계학술대회 Vol.2009 No.-

본 연구는 감성공학적 접근법으로 터치 모바일 폰의 자유 드로잉 GUI 요소를 디자인 하기위한 프로세스를 검증하는 것이 목적이다. 본 연구의 프로세스는 다음과 같이 진행되었다. 첫째, 터치폰에서 자유드로잉하는 행태를 파악하기 위하여 남 녀 대학생 57 명을 대상으로 터치폰 일기를 쓰게 하여 분석하였다. 또한 관찰 대상자가 선호하는 패션, 좋아하는 이미지를 수집하여, IRI 표준 이미지 스케일 맵에 매핑하여 감성 요소를 추출하였다. 둘째, 추출된 감성요소는 Norman(2002)에 의거한 감각적(Visceral), 행태적(Behavioral), 심볼적(Reflective) 감성어휘로 도출하고, 요인 분석을 통해 대표 감성 어휘를 도출하였다. 셋째, 자유 드로잉을 위한 터치 모바일폰 GUI 요소를 도출한 후 대표 감성 어휘와의 관계성을 분석하여 관계성이 높은 디자인 요소를 추출하였다. 마지막으로 추출된 대표 디자인 요소와 대표 감성 어휘는 다차원척도(Multidimensional scaling : MDS) 분석을 실시하여 2 차원 축에 모델링하고, 정량적으로 디자인에 반영될 주요 감성을 도출해본 결과 사용자의 감성적 경험을 통해 도출된 GUI 와 유사성이 높은 감성 어휘는 감성적 디자인을 할 때 주 요소로 적용 된다는 사실을 확인하였다.

멀티터치 인터페이스를 이용한 음향 효과 재생 시스템

안상민,김범선,박종현,이승욱,임영규,장지은,조봉화,황민철 한국감성과학회 2009 춘계학술대회 Vol.2009 No.-

본 연구는 멀티터치 인터페이스를 이용한 음향 효과 재생 시스템을 구현하고자 한다. 적외선 카메라를 통해 인식된 손의 위치를 분석하고 해당위치에 형성된 오브젝트의 물리적 움직임을 통해 미리 설정된 음향과 리듬효과를 얻는다. 본 연구에서는 시 청각적 피드백을 사용하여 보다 풍부한 감성을 자극시켜 엔터테인먼트 효과 외에 아동 치료 목적으로도 사용 할 수 있는 시스템을 구현하였다

미디어스킨의 감성 인터랙션 요소에 관한 연구

김용우(Yong Woo Kim),황민철(Min Cheol Whang),김지혜(Ji Hye Kim),조봉화(Bong Hwa Jo),박재언(Jae Un Park),문성철(Sung Chul Mun) 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5

This study was to analyze emotional interaction factors in media skin and to suggest a guideline. The interaction area 3m away from the media skin stimulator was designated. 30 undergraduates aged 20 to 30 years old (M=25, SD=2.05), not visually handicapped people had participated in the experiment. They were asked to score what they felt in interest, relaxation, and stability levels while interacting with the media skin simulator. The rating was made on a 1-to-7-likert scale. The data was analyzed by the one-way ANOVA procedure. Different results in interest, relaxation, and stability levels were obtained in each sensing delay and reaction time level. The data was also analyzed by the independent t-test. The two-way interaction type directly controlled by users showed the higher scores in interest level than the visual-way type. The interaction area that showed the highest preference score was the 7×6㎝ pixel size. This study was significant in that interaction factors in media skin under the spotlight were systematically analyzed. The studies on media skin reflecting affective interaction factors and user needs should be followed in the future.

한글을 위한 P300 Speller 연구

이정년(Jungnyun Lee),황민철(Mincheol Whang),김종화(Jonghwa Kim),안상민(Sangmin Ahn),박재언(Jaeun Park),박상인(Sangin Park),조봉화(Bonghwa Jo),김송이(Songyi Kim) 한국HCI학회 2011 한국HCI학회 학술대회 Vol.2011 No.1

각성도에 따른 얼굴 움직임 변화에 관한 연구

박재언(Jaeun Park),황민철(Mincheol Whang),김종화(Jonghwa Kim),김지혜(Jihye Kim),안상민(Sangmin Ahn),이정년(Jungnyun Lee),박상인(Sangin Park),문성철(Sungchul Mun),조봉화(Bonghwa Jo) 한국HCI학회 2011 한국HCI학회 학술대회 Vol.2011 No.1

본 논문은 얼굴 표정을 인식하여 각성도를 측정하고 측정된 각성도의 정확성을 뇌파를 통해 검증함으로써 얼굴 인식에 의한 각성도 평가의 가능성을 확인하는 것이 목적이다. Web 카메라를 통해 획득한 얼굴 표정에서 눈, 눈썹, 그리고 입의 특징점 좌표를 추출하였다. 그리고 좌표간의 관계를 분석함으로써 얼굴의 각성도를 평가하였다. 얼굴의 각성도는 Ekman의 FACS(Facial Action Coding System)기법을 사용하여 각성도에 영향을 주는 5가지 AU(Action Unit) Factor를 통해 평가하였다. 동시에 얼굴 표정 인식을 통한 각성도 측정의 가능성을 확인하기 위하여 뇌파의 α파와 β파를 측정하여 객관적인 지표로서 피실험자의 각성도를 측정하였다. 자극은 각성도에 영향을 줄 수 있는 영상 자극을 사전실험을 거쳐 4가지 자극이 선택되었으며 각 자극 제시 후 주관 설문을 실시하였다. Ekman의 6가지 표정에 의한 감성 인식의 경우 모든 감성을 표현할 수 없다는 단점이 있기 때문에 Russell의 감성 2차원 모델을 사용하여 각성도를 표현하였다. 본 연구를 통해 얼굴 표정에 의한 각성도 측정을 통해 감성 모델링이 가능할 것으로 보이며 얼굴 표정에 의한 쾌감도 측정 시스템을 개발하면 완벽한 감성 모델링이 가능할 것으로 사료된다.

얼굴 인식에 의한 각성도 측정에 관한 연구

박재언(Jae Un Park),황민철(Min Cheol Whang),김용우(Yong Woo Kim),김지혜(Ji Hye Kim),문성철(Sung Chul Mun),조봉화(Bong Hwa Jo) 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5

The purpose of this study was to define emotions in the degree of arousal by distinguishing the specific features in facial expressions. A web camera was used to obtain images for extracting the coordinates of features in eyes, eyebrows, and mouths. Seven major factors that dictated the degree of arousal were drawn out by calculating the distances and angles of the coordinates. Of the factors, five factors were finally determined by a pre-test. Mapping the data in facial expressions onto subjective evaluations was tried to elevate the validity. Participants were three undergraduates of Sangmyung University, not visually handicapped. Two sets of relaxing and arousing movies were presented to each subject. Each movie popped up on the screen in order of relaxing, arousing, relaxing, and arousing movies every 90 seconds with rest for 70 seconds. The degrees of arousal in their facial expressions changed by the stimuli were measured. Each participant was asked to score what they felt in the degree of arousal. The rating was on a 1-to-7 Likert scale. Then, the two data was compared by drawing a matrix. The concordant rate of 75% between facial expressions and subjective evaluations was confirmed. This study was significant in that the approach to analyzing the degree of arousal in facial expressions and to comparing it with subjective judgments was carried out. The result gained from this study is expected to help define emotions in the degree of arousal. More studies on facial expressions of emotions in the aspects of valence and arousal dimensions should be followed in the future.

Circumplex Model에 의한 모바일 서비스 감성 모델링

문성철(Sung Chul Mun),황민철(Min Cheol Whang),김용우(Yong Woo Kim),김지혜(Ji Hye Kim),박재언(Jae Un Park),조봉화(Bong Hwa Jo) 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5

Emotions have been induced by either discrete approaches or dimensional approaches. The former approach included six basic emotions such as anger, disgust, fear, joy, sadness and surprise. The latter was to represent the structure of affect as a two dimensional bipolar space, including valance and arousal axes. The dimensional approach to emotions in this study was tried to define new affective domains in mobile services. The circumplex model, a representative model in dimensional approaches has been proved to be an effective way in representing complicated emotions of people. In addition, lots of studies related to the dimensional approach have been done to reveal the structure of actual affective experience. However, few attempts have been made to systematically define the structure of affect in mobile services. This study was to construct a new affective model for mobile services and to define proper affect domains. The procedures of this study were as follows: affective words had been gleaned from user reviews, depth interviews, behavior analysis and literatures on emotion-denoting adjectives elicited while using mobile services. The collected 207 words were stratified and integrated by frequency analysis and KJ method. Systematic methods such as FGI, scenario techniques and factor analysis were used to extract proper emotion words and to verify them. The resulting 26 words were analyzed in two approaches based on judgments and experiences. In spite of differences in the measurement models and in the procedures employed in collecting data, the two approaches yielded a remarkably consistent structure of affect except for differences in a few emotions. The thing that matters most in the processes was that the common axes of valance and arousal dimensions were obtained from both the self-reported and similarity data. In this study, we proposed a new affective model for mobile services in order to help grasp users’ emotions. The proposed model will contribute to revealing the structure of actual affective experiences in mobile services. Also, this model is expected to be a framework in developing affective mobile services and in enhancing the quality of mobile services. More studies on mapping the affective domains obtained from this study onto some specific mobile services should be followed in the future.

터치폰 인터랙션의 Flicking에 대한 감성 터치감에 대한 연구 (pp.62-66)

김지혜(Kim Ji Hye),황민철(Whang Min Cheol),김용우(Kim Yong Woo),문성철(Moon Sung Chul),박재언(Park Jea Un),조봉화(Jo Bong Wha) 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5

This study was to suggest the proper level of touch sensibility for twenties while flicking touch phones. A rapid prototype of 480x800 pixel size was developed for the experiment. Participants were 20 undergraduates, not visually and physically handicapped in using touch phones. 15 different modes, with each mode changing in velocity when flicking the prototype were randomly presented to each subject. The subjects were asked to score what they felt in each mode on a 1-to-6 Likert scale. The data was analyzed by the one-way ANOVA procedure. Each mode showed significant differences in 8 representative emotions except for exclusivity feeling and fresh feeling Each velocity mode was scaled by the multidimensional scaling technique. Then, vector coordinates in each emotion were obtained by simple regression analysis. 15 velocity modes and each emotion were joint-plotted by the MDS, PROXSCAL. The findings in this study could be basic data for studying affective touch sensibilities in multiple ways.