• 한국HCI학회논문지
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• 제9권1호
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• pp.23-28
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• 2014

In this study we focus on the effect of the interaction between humans and reactive television when emotion recognition through facial expression mechanism is used. Most of today's user interfaces in electronic products are passive and are not properly fitted into users' needs. In terms of the user centered device, we propose that the emotion based reactive television is the most effective in interaction compared to other passive input products. We have developed and researched next generation cognitive TV models in user centered. In this paper we present a result of the experiment that had been taken with Fraunhofer IIS $SHORE^{TM}$ demo software version to measure emotion recognition. This new approach was based on the real time cognitive TV models and through this approach we studied the relationship between humans and cognitive TV. This study follows following steps: 1) Cognitive TV systems can be on automatic ON/OFF mode responding to motions of people 2) Cognitive TV can directly select channels as face changes (ex, Neutral Mode and Happy Mode, Sad Mode, Angry Mode) 3) Cognitive TV can detect emotion recognition from facial expression of people within the fixed time and then if Happy mode is detected the programs of TV would be shifted into funny or interesting shows and if Angry mode is detected it would be changed to moving or touching shows. In addition, we focus on improving the emotion recognition through facial expression. Furthermore, the improvement of cognition TV based on personal characteristics is needed for the different personality of users in human to computer interaction. In this manner, the study on how people feel and how cognitive TV responds accordingly, plus the effects of media as cognitive mechanism will be thoroughly discussed.

• 복식
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• 제64권7호
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• pp.68-81
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• 2014

This study was conducted to demonstrate the differences in people's beauty involvement, hair attitude and cognitive in accordance with their interest in celebrities and television. Also, the difference between cognitive age and real age was studied. Research subjects were females aged 20s to 50s living in Seoul and the surrounding metropolitan areas. The SPSS 19.0 was used for data analysis. The results were as follows: First, the involvement in TV entertainers' was categorized into "TV entertainer fashion fan group," "TV entertainer follower group," and "TV program interest group." Second, The involvement of beauty was divided into skin management and expression, body management, makeup and hair attitude. The factors for hair attitude come from the following four actors: "hair creator fan group", "hair homeostasis-oriented," "hair differentiation factor," and "hair personnel-oriented group." Third, the analysis for the differences in the involvement of beauty based on the people's interest in TV appearances of entertainers was that there was a significant difference in skin care and expression, body management, makeup and hair attitude. The interest groups for the entertainers' TV appearances showed the highest in all of the above categories. Fourth, The analysis for the cognitive age for the "TV entertainer interest group" showed little difference in cognitive age, age of sensibility, age of physical appearance, behavior age, and age of interest. Fifth, The result for the difference in the actual age and cognitive age for different age groups showed that there was a little difference in average cognitive age including the age of sensibility, age of physical appearance, behavior age, and age of interest.

• 한국통신학회논문지
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• 제35권4B호
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• pp.704-712
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• 2010

최근 다양한 무선기기 및 통신서비스의 보급으로 주파수 부족문제가 대두되고 있다. 이에 대한 해결책으로 신규 주파수자원 확보와 더불어 주파수 이용에 간섭 없이 기존의 TV 방송통신 대역(UHF/VHF)의 유휴주파수(Whitespace) 자원을 이용할 수 있는 무선인지(Cognitive Radio) 기술이 주목 받고 있다. 본 논문에서는 먼저 TV 대역 상에서 비면허 무선서비스의 활용 가능성을 탐색하기 위해 개발한 무선인지 단말시스템을 소개하고, 이 단말시스템 상에 탑재되어 효율적인 주파수 관리 기능을 수행하는 센싱 MAC 모듈의 개발 내용 및 테스트 결과를 기술한다. 무선인지 단말시스템에 적용된 센싱 MAC 소프트웨어는 IEEE 802.22 표준 규격을 기반으로 설계 및 구현되었으며, 개발된 센싱 MAC 모듈의 테스트를 수행하였다.

• ETRI Journal
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• 제29권3호
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• pp.393-395
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• 2007

Analytic modeling and computational simulation for the protection of DTV from cognitive radio interference are performed. Protection is achieved by using the protection ratio, which is derived through system modeling and its analysis. On the frequency coordination between digital TV and cognitive radio, an analysis in a co-channel environment, in a rural area in Korea, is performed.

• 아동학회지
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• 제25권1호
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• pp.47-60
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• 2004

This survey of 659 mothers examined maternal childrearing attitudes of over-protectiveness vs. active involvement and restrictive and/or evaluative TV/Video viewing mediation in relation to children's emotional, cognitive and social development. Data were analyzed by mean, standard deviation, Pearson's correlation, and multiple regression. Maternal over-protectiveness was highly associated with children's negative emotionality and maternal active involvement with children was the most important determinant of children's positive development. Furthermore, appropriate parental mediation of children's TV/Video viewing was related to children's higher cognitive and social ability as well as positive emotionality.

• 한국ITS학회 논문지
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• 제9권1호
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• pp.27-33
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• 2010

주파수 부족 및 비효율적 활용을 완화시키기 위해 제안된 무선인지시스템은 기존의 1차 사용자에게 대한 간섭을 주지 않도록 하면서 유휴주파수를 사용하게 하는 기술로서 최근 주목받고 있는 차세대 이동통신 시스템이다. 최근 FCC는 실질적으로 TV대역에 무선인지 시스템을 적용하도록 하면서 관련된 규정을 개정하였고 TV대역의 유휴주파수에 대하여 고정기기 및 개인 휴대기기에 대한사용을 허가하도록 방침을 정하였으며 2009년 DTV로 전환 완료 이후 해당 기기들의 사용은 본격화 될 것이다 무선인지 시스템의 기본 방침안 면허 사용자에 대한 보호를 위하여 TV대역사용에서의 우선순위가 가장 높은 신호인 TV 및 무선마이크에 대한 보호가 이루어져야하는데 이를 위해 정확한 1차 사용자에 대한 검출，즉 TV대역의 1차 사용자인 DTV에 대한 정확한 스펙트럼 센싱이 이루어져야 한다. 본 논문에서는 스펙트럼 센싱 성능이 우수한 파일릿 센성을 이용하여 DTV신호를 검출하도록 하였고 DTV신호검출의 신뢰성 향상을 위하여 협력 센싱기반의 파일릿 센싱을 수행하여 DTV신호의 검출 확률의 정확성 및 신뢰성을 높이도록 하였다. 또한 각 단일 센싱 결과를 취합하여 판단하는 과정에서 효율적인 판단을 위해 다수의결법을 제안한다.

• 인지과학
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• 제25권1호
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• pp.25-49
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• 2014

본 연구는 한 제품 군(음료)의 다양한 TV 광고들을 대상으로 광고 수용자들이 어떤 속성을 중심으로 광고를 인식하는지 알아보고자 하였다. 이를 위해 다차원척도법을 사용하여, 14개의 음료 광고들의 각 쌍에 대한 광고 수용자의 유사성 평정에 근거한 광고들의 포지셔닝 맵을 도출하였다. 광고 수용자의 인식 구조를 반영하는 포지셔닝 맵의 차원을 알아보고자 각 광고에 대한 주의 요소, 태도, 구매의도에 대한 평정치와 포지셔닝 맵 상의 각 광고 위치 좌표 간의 상관을 조사하였다. 실험 결과, 음료 광고인식 차원은 내용에 대한 주의, 색상, 움직임에 대한 주의 요소와 높은 상관을 보였다. 특히, 주의 요소들 중 내용에 대한 주의가 강조될수록 광고에 대한 감성적, 행동적 태도가 긍정적으로 형성되었으며, 구매 의도도 증가하였다. 이러한 결과는 주의를 끄는 내용이 담긴 광고가 소비자의 긍정적인 태도와 관련이 높음을 시사한다.

• 대한인간공학회지
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• 제27권4호
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• pp.15-26
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• 2008

Recently, Internet Protocol TV technology has a latent power for searching information by using internet-connected interactive TV media. It is hard to browse and search web site conveniently since the visual and input devices are not sufficient for navigating through the websites. Zoomable user interface is a possible solution that may reduce users' task load and improve their performance. In this paper, we made three types of web browsers as scroll, physical zooming and semantic zooming type. Fifteen participants asked to do searching tasks and their task time, accuracy and subjective responses are recorded. In the result, though scroll type is evaluated more efficient than other types in task time and accuracy since participants are familiar with scroll type interface, semantic zooming type is highly rated in subjective responses such as perceived searching efficiency, satisfaction and joyfulness. This result implied semantic zooming is a possible solution which is improving user experience of searching websites using Internet Protocol TV.

• 한국의류학회지
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• 제30권2호
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• pp.233-244
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• 2006

The purpose of this study is to examine the effects of situational involvement on impulse buying of clothing products in cable TV home shopping. Data were obtained from 235 women aged between 20 and 50 living in Seoul metropolitan area who have bought apparel products on impulse through cable TV. The data were analyzed using factor analysis, cluster analysis, MANOVA, and Chi-square analysis. By factor analysis, two factors of situational involvement factors were identified: Emotional Involvement and Cognitive Involvement. Based on situational involvement, consumers were classified into four groups; High Involvement, Low Involvement, Cognitive Involvement, and Emotional Involvement groups. These groups showed different decision making styles. The situational involvement groups were also different in terms of demographic characteristics, purchase behaviors, types of impulse purchase products, and responses to marketing stimuli. The findings of this study provide useful information for retails of Cable TV home shopping. Retailers may need to make useful marketing efforts for each types of situational involvement.

• 한국전자파학회논문지
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• 제22권12호
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• pp.1165-1171
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• 2011

본 논문에서는 국내 전파 환경에서 DTV 서비스를 안전하게 보호하면서 동시에 TV 유휴 대역 기기를 효과적으로 운용하기 위해 은닉 노드에 의한 DTV 신호 감쇄 영향을 살펴본다. 이를 위해, 국내 전파 환경을 지리적 특성에 따라 해안형, 분지형, 도시형 지역으로 분류하고, 각 지역을 지형적 특징에 따라 다시 8개 지형으로 세분화하여 측정 지점을 선정한 후 DTV 신호의 은닉 노드 감쇄 정도를 측정하고 분석한다. 국내 대도시의 경우 빌딩 건물 지역과 주상 복합 지역이 다른 나라에 비해 상대적으로 밀집해 있기 때문에, 국내 DTV 서비스를 안전하게 보호하기 위해서는 은닉 노드 마진을 최소한 38 dB 이상 설정해야 한다.