• Journal of Electrical Engineering and Technology
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• 제12권4호
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• pp.1657-1662
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• 2017

Facial expression recognition systems using video devices have emerged as an important component of natural human-machine interfaces which contribute to various practical applications such as security systems, behavioral science and clinical practices. In this work, we present a new method to analyze, represent and recognize human facial expressions using a sequence of facial images. Under our proposed facial expression recognition framework, the overall procedure includes: accurate face detection to remove background and noise effects from the raw image sequences and align each image using vertex mask generation. Furthermore, these features are reduced by principal component analysis. Finally, these augmented features are trained and tested using Hidden Markov Model (HMM). The experimental evaluation demonstrated the proposed approach over two public datasets such as Cohn-Kanade and AT&T datasets of facial expression videos that achieved expression recognition results as 96.75% and 96.92%. Besides, the recognition results show the superiority of the proposed approach over the state of the art methods.

• 한국환경교육학회지:환경교육
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• 제24권3호
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• pp.26-33
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• 2011

In this study, we discuss ways to environmental values education from sentences on environmental education textbooks. Values education is very important territory in environmental education. But school environmental education has some different idea about how to teach that. One way is to teach directly. The other way is to teach in a roundabout way. These days many researches said that roundabout way is better. The purpose of this study is to find out good ways to values education in environmental education. So we analyzed sentences on four environmental education textbooks of middle school. The analysis is limited body of textbooks. And we found immediate appropriateness expression for values education. The study results are as follows. There are 420 immediate expression in textbooks. That is 11% of whole expressions. And 6 big Units of textbooks have not difference about that expression. Most last sentences of class are immediate expressions. So authors of textbook will have mind about good values education method. One method is to use many interrogative sentences. Interrogative sentences help that student have values of themselves.

• Child Health Nursing Research
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• 제15권2호
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• pp.127-135
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• 2009

Purpose: This cross-sectional study was designed to identify anger-expression types in late school-age children and to investigate the relation of anger and the anger-expression type to their eating disorders. Method: Two hundred fifty four children in elementary school were recruited from 14 to 25, April, 2008. The data were analyzed by using descriptive statistics, cluster analysis, t-test, ANOVA, and Tukey's multiple comparison test. Result: Three anger-expression types in late school-age children were found; Anger-in/out, Anger-control, and Low anger-expression types. Children frequently using the anger-out/in type among the three types and with a higher trait anger reported higher eating disorders. Particularly trait anger and unhealthy anger expression type were linked to eating disorders. Conclusion: This study suggests that a specific anger management program needs to be developed for late school-age children with high trait anger and frequently using the anger out/in expression type and Anger-control type than low anger-expression types. Further research needs to be done with large samples and discussed in terms of the role of gender in eating disorders.

• 전자공학회논문지CI
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• 제42권4호
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• pp.33-42
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• 2005

본 논문에서는 소속 함수와 신경망을 이용한 유전자 발현 정보의 분류 기법을 제안한다. 유전자 발현은 유전자가 mRNA와 생체의 기능을 일으키게 하는 단백질을 만들어내는 과정이다. 유전자 발현에 대한 정보는 유전자의 기능을 밝히고 유전자간의 상관 관계를 알아내는데 중요한 역할을 한다. 이러한 유전자 발현 연구를 위한 정보를 대량으로 신속하게 얻을 수 있는 도구가 DNA 칩이다. DNA 칩으로 얻은 수백$\~$수천개의 데이터는 그 데이터만으로는 의미를 갖지 못한다. 따라서 유전자 발현정도에 따라 수치적으로 획득된 데이터에서 의미적인 특성을 찾아내기 위해서는 클러스터링 방법이 필요하다. 본 논문에서는 수많은 유전자 데이터 중에서 주요 정보를 포함한 것으로 판단되는 유전자 데이터를 피셔 기준에 의하여 선택한다. 이때 선택된 데이터들이 클러스터링에 효과적인 데이터라고 보장할 수 없으므로, 클러스터링 성능을 저해하는 유전자 데이터의 영향력을 감소시키기 위해서 소속 함수를 이용하여 특징값을 계산하고, 계산된 특징값으로 얻은 특징 벡터들을 적용하여 역전파 신경망 학습을 수행한다. 본 논문에서 제안한 유전자 발현 정보의 분류 결과로 얻은 클러스터링의 성능은 기존의 연구 결과와 비교했을 때 다양한 유전자 데이터에 대하여 향상된 인식율을 보이는 것을 확인할 수 있었다.

• 지역사회간호학회지
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• 제19권2호
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• pp.270-279
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• 2008

Purpose: The purpose of this study is to investigate the relationship among anger expression mode, depression and aggression in vocational high school students and to preview a method to help adolescents who have the tendency of anger, depression or aggression tendency in community mental health situation. Method: In order to get the data by self-reporting questionnaire, 372 subjects were selected from Oct. 1, 2006 to Dec. 18, 2006. The instruments for this study were Spielberger's Anger Expression Scale, Beck's Depression Scale, and Buss & Durkee's Aggression Scale. The dada was analyzed by percentage, mean, standard deviation, t-test, one-way ANOVA, and Pearson's correlation coefficient using the SPSS 12.0 program. Result: There were significantly positive correlations between anger-in and depression, and between anger-in and aggression. Also there were significantly positive correlations between anger-out and depression, and between anger-out and aggression. There was a significantly positive correlation between depression and aggression. Conclusion: It is necessary to develop a strategy to decrease depression and aggression, and to increase positive anger expression mode for vocational high school students.

• 제어로봇시스템학회논문지
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• 제12권2호
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• pp.130-137
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• 2006

In this paper, we propose a method of selecting new types of rectangle features that are suitable for facial expression recognition. The basic concept in this paper is similar to Viola's approach, which is used for face detection. Instead of previous Haar-like features we choose rectangle features for facial expression recognition among all possible rectangle types in a 3${\times}$3 matrix form using the AdaBoost algorithm. The facial expression recognition system constituted with the proposed rectangle features is also compared to that with previous rectangle features with regard to its capacity. The simulation and experimental results show that the proposed approach has better performance in facial expression recognition.

• 한국콘텐츠학회논문지
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• 제19권3호
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• pp.100-113
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• 2019

본 연구는 출소자를 대상으로 아동기 외상과 가족기능성과의 관계를 분노표현방식이 매개하는지 알아보고자 하였다. 이를 위해 한국법무보호복지공단에서 주거지원을 받고 있는 출소자 500명을 대상으로 자료수집을 하여 최종 400명의 자료로 구조모형분석을 실시하였다. 분석 결과, 첫째, 아동기 외상은 가족기능과 부적상관을 나타냈고, 아동기 외상과 기능적 분노표현방식인 분노조절은 부적상관을 나타낸 반면, 역기능적 분노표현방식의 하위요인인 분노표출, 분노억제와는 정적상관을 나타냈다. 또한 기능적 분노표현방식인 분노조절은 가족기능성과 정적 상관을 나타낸 반면, 역기능적 분노표현방식인 분노표출, 분노억제는 가족기능성과 부적 상관을 나타냈다. 둘째, 아동기 외상경험과 가족기능과의 관계에서 기능적 분노표현방식인 분노조절과 역기능적 분노표현방식인 분노표출, 분노억제의 매개효과를 검증한 결과, 분노조절과 분노표출, 분노억제가 아동기 외상경험과 가족기능과의 관계를 부분매개하는 것으로 나타났다. 구체적으로는 아동기 외상경험과 가족기능과의 관계에서 분노조절은 가족기능에 긍정적인 영향을 미치는 반면, 분노표출 및 분노억제는 가족기능에 부정적인 영향을 미치는 것으로 확인되었다. 연구결과를 토대로 논의 및 시사점이 제시되었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권9호
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• pp.4549-4566
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• 2017

This work presents a novel facial descriptor, which is named as multiscale adaptive local directional texture pattern (MALDTP) and employed for expression recognition. We apply an adaptive threshold value to encode facial image in different scales, and concatenate a series of histograms based on the MALDTP to generate facial descriptor in term of Gabor filters. In addition, some dedicated experiments were conducted to evaluate the performance of the MALDTP method in a person-independent way. The experimental results demonstrate that our proposed method achieves higher recognition rate than local directional texture pattern (LDTP). Moreover, the MALDTP method has lower computational complexity, fewer storage space and higher classification accuracy than local Gabor binary pattern histogram sequence (LGBPHS) method. In a nutshell, the proposed MALDTP method can not only avoid choosing the threshold by experience but also contain much more structural and contrast information of facial image than LDTP.

• 한국IT서비스학회지
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• 제17권4호
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• pp.85-100
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• 2018

In this study, we formulated rational criteria to efficiently provide traffic information services via a crafted approach. By utilizing this, we presented a detailed traffic information service providing method that can overcome the limitations of existing link unit information provision system. Three methodologies such as user survey, data mining, and KHCM (Korea Highway Capacity Manual) utilization method were applied to formulate a rational expression standard for traffic information service. Each method was designed to establish a quantitative criterion for various traffic conditions and to enable user-oriented traffic information service in consideration of the traffic principal/compatibility. Considering the results of each methodological analysis in a comprehensive manner, the basic expression standards for traffic information service was formulated. Then we presented improvements such as traffic condition step by road, speed range of traffic condition, expression term of traffic condition and so on. In order to complement the problems of the information provision system of the existing link unit based on the derived improvement criterion, we presented the detailed traffic information service provision method by using the traffic speed data of the second order. And we applied this to the two links of Daegu city. The method presented in this research can improve the quality of traffic information service. Not only it can be used for various fields such as optimal route search, traffic safety service and so on.

• 한국실내디자인학회논문집
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• 제23권2호
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• pp.147-155
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• 2014

The purpose of this study was to investigate expression characteristics of korean traditionality in restaurants & Ccfes which adapted thatched roof & shingle-roofed house. As a method of this study, a case study was made to investigate for exterior and interior elements(roof type, facade, floor, wall, ceiling, door & window) of 12 restaurants & cafes in Seoul and Kyunggi Province from June 10, 2013 to December 1, 2013. The results of this study were as follows: First, traditional transformation was mostly used among the traditional expression methods. But, there was not many traditional reinterpretation method. Second, looking at each component, traditional reproduction method mostly used for roof, column and ceiling to emphasize facade. Traditional transformation method can be divided into 3 ways in detail. The first method is mixing materials of modern and traditional, and the second one is transforming traditional material and combining this with modern one. The third is removing traditional material completely and transforming totally into modern materials. Third, traditional high quality noble houses are found in luxurious Korean restaurants and luxurious cafes while common houses are found in local food restaurant and cafes. It is because traditional common houses are still considered as low quality of design and it may prevent common houses from becoming high quality of design.