• Journal of the Institute of Electronics Engineers of Korea SP
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• v.47 no.3
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• pp.11-22
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• 2010

This paper is a study on implementation of intelligent image surveillance system using context information and supplements temporal-spatial constraint, the weak point in which it is hard to process it in real time. In this paper, we propose scene analysis algorithm which can be processed in real time in various environments at low resolution video(320*240) comprised of 30 frames per second. The proposed algorithm gets rid of background and meaningless frame among continuous frames. And, this paper uses wavelet transform and edge histogram to detect shot boundary. Next, representative key-frame in shot boundary is selected by key-frame selection parameter and edge histogram, mathematical morphology are used to detect only motion region. We define each four basic contexts in accordance with angles of feature points by applying vertical and horizontal ratio for the motion region of detected object. These are standing, laying, seating and walking. Finally, we carry out scene analysis by defining simple context model composed with general context and emergency context through estimating each context's connection status and configure a system in order to check real time processing possibility. The proposed system shows the performance of 92.5% in terms of recognition rate for a video of low resolution and processing speed is 0.74 second in average per frame, so that we can check real time processing is possible.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.4
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• pp.219-228
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• 2013

The surveillance imaging equipments are functioning to observe the shape of the target in real time or to measure its location precisely. The roles of such equipments are becoming more important in today's weapon systems.The aforementioned imaging equipments can be classified based on the modes of operations such as fixed, installed on cars, or composite of those. Also, according to different concepts of sensor operation, a separate type uses independent housing for each sensor whereas in a composite type a set of multiple sensors are housed into a unit altogether. The sensors in general have magnetism, thereby introducing the possible negative effects, particularly in the composite types, in locating the reference position, which is carried out by the digital compass. The use of shielding material/housing could be an option but results in increased weight and reduced portability, restricting its use in composite type equipments. As such, the objective of this paper is to study on how to reduce such magnetic effects on the position location. To do so, in the absence of magnetic shielding, a variety of sensor positions were first modeled. By combing the result with the fact that the functions of PAN & Tilt are used in the equipments, a new position location algorithm is proposed. The use of the new algorithm can automate the position location process as compared to the manual process of the existing approach. In the algorithm developed, twelve locations are measured in connection with both the azimuth and elevation angles in comparison to the six locations alone around the azimuth angle. As a result, it turns out that the measurement range has been widened but the measurement time reduced. Also, note that the effect of errors the operators may make during measurement could be reduced.

• Korean Journal of Childcare and Education
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• v.9 no.6
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• pp.417-438
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• 2013

This study studies the effect of student teacher's sense of humor, psychological well-being and ego-resilience by general characteristics and by examining the correlation with each other and influences. A sample of 323 student teachers was obtained from a college and a university in the Busan area. This study made use of an research instrument which was a questionnaire for sense of humor(Woo, 2008), psychological well-being(Lee, 2006) and ego-resilience(Park, 1997). For the data analysis connection analysis and regression analysis, SPSS version 18.0 was used. The results of study are as follows. First, student teachers have scores which are above average scores of sense of humor, psychological well-being and ego-resilience. Second, there was a positive correlation between the sense of humor and ego-resilience and a low grade variable of ego-resilience of student teachers and their sense of humor and psychological well-being and between their psychological well-being and ego-resilience. Third, When a multilinear regression analysis was made to confirm which variable would affect ego-resilience, sense of humor and a low grade variable of their was found to exert a statistically significant impact by 5%, and psychological well-being and a low grade variable of their was found to exert a statistically significant impact by 26%. Based on the results, the education training or programs for student teacher to use the sense of humor and psychological well-being should be developed according to the ego-resilience.

• Archives of design research
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• v.13 no.3
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• pp.153-167
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• 2000

This paper is designed to make a research into the process of the formation and introduction of design management system necessary for the strategic utilization of design at a management love on the part of domestic small business. This paper is limited to the study of the general problems ralated to the design management of the domestic small business companies producing consumer goods. 1 made an examination of the necessity of the introduction of design management and of the necessity of design development in connection with the administrative features of small business, identifying the actual condition of design by the small business and discussing the actual situation of design management and tasks to tackle. lastly, 1 made a suggestion of the process, whose aim lies In the inside establishment of the design management system deemed desirable for the domestic companies. 1 have come to the following conclusions. First, small business should make use of design development so as to keep their competitiveness and to enhance their administrative features. Second,. design can serve as a means for making a speedy response in the companies'differentiation strategies arid strategies for markets with a lot of opportunities. Third, the utilization of design at an administrative love on the part of the small business works in the light of enterprise communications, organizations, business and marketing and so on. Fourth, the majority of small business are weak when it comes to organization, manpower and environment in relation to design. So it is necessary to introduce and construct the design management system. Fifth, the managers of the small business should first of all take a strong interest in and have a renewed understanding of the importance of design. I made a suggestion that the small business should carry out a process constructing the design-management system based on the design organization and manpower, but stopped short of confirming my suggestion in a corroborative way.

• Korean Journal of Health Education and Promotion
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• v.21 no.1
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• pp.85-102
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• 2004

The purpose of this study was to examine the utilization of Internet health information sites by undergraduates at colleges related to public health. A self-administered questionnaire survey was carried out by 2,400 student from university and colleges in Taegu and Kyongsangbuk-do area from March 11, 2002 to March 31, 2002. 58.8% of the subjects responded that once connected rate of health information sites on the internet for year. In the connection rate of health information sites on the internet, the low class($\leq$300%), the middle class(40-70%), and the high class(80%$\leq$) accounted for 89.8%, 9.0%, and 1.2%, respectively. A ranking of internet health information sites, diseases are ranked frist and exercise is ranked second and obesity is ranked third. The motives Students submit reports 36.1% and obtained knowledge 22.8%. Sufficiency of health information sites on the internet, sufficient 19.6%, common 56.3%, and insufficient 24.1%, Satisfaction of health information, satisfied 18.4%, common 63.1%, and dissatisfied 18.4%. With regards to the health behavior of the subjects that contacted Internet health information sites, the nonsmoking rate was 86.2%, the nondrinking rate was 28.9%, the rate of exercise practice was 22.6%, the rate of normal sleep was 66.3%, the rate of eating breakfast was 37.1%, the rate of not eating between meals was 4.8%, and the standard BMI was 14.3%. With regards to the health behavior of the subjects that had not contacted Internet health information sites, the nonsmoking rate was 84.9%, the nondrinking rate was 26.0%, the rate of exercise practice was 18.5%, the rate of normal sleep was 72.1%, the rate of eating breakfast was 34.3%, the rate of not eating between meals was 5.0%, and the standard BMI was 17.0%. In the frequency of health behavior, the subjects with the Breslow Index of 0-3, 4-5 and 6-7 accounted for 80.9%, 18.8%, and 0.2%, respectively. The average score of health behavior was 2.80 out of 7. In conclusion, Internet health information sites are required for students to understand proper, reliable, interesting information and there is a need to develop simple criteria that the general public can understand and utilize.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.12
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• pp.1866-1877
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• 2008

The purposes of this study were to identify the dimensions of perceived dissatisfaction, complaining behavior, and long-term orientation of customers about the Internet fashion shopping mall, and to empirically examine the effects of each dimension of perceived dissatisfaction and complaining behavior on long-term orientation. For this study, questionnaires were administered to 275 Internet shopping mall customer. To analyze collected data, descriptive analysis, factor analysis, Cronbach's $\alpha$, correlation analysis, and regression analysis were used. Major findings were as follows. First, college students were found to mainly complain of dissatisfaction at product quality, refunding/changing/maintenance repair, price, contract, delivery, and payment after transaction with the Internet shopping mall. Second, customer dissatisfaction was found to have high correlation with complaining behavior and partly with customer neglect or exit. Third, higher customer dissatisfaction was found to increase customer complaining behavior in general. Finally, higher complaining behavior was found to have connection with lower customer loyalty and higher customer neglect and exit.

• Archives of design research
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• v.16 no.3
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• pp.111-122
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• 2003

We must not consider a culture as means of economy. Specially, it is not possible that is supposed to incorporate a cultural identity in a shape of product, but also international competitiveness can not be raised by it. Because an identify is based on the system of symbol such as language, it can be understood only in a same cultural area. While, the value-in-use of technology can be accepted universally as a formative language of international style. Therefore, the competitiveness of design will say as a special quality that can be acquired in connection with technology. For instance, that Korean mobile telephone could be recognized worldwide is not because it has the Koreanized shape but has a high technology. The public have only a superficial understanding about design. Because that is limited in the visual aspect of product, so called 'the pretty design', which exclude the value-in-use and the organic correlation of form and function in general, it may be a cause of socio-ethical dysfunction. It is providing an elbowroom for making a mistake that can regard the product design as an artistic experiment and try to raise the international competitiveness simply with the visual aspect. And the distorted understanding about design has been diffused rapidly owing to spread of black box products because the over-designed shape is known to the public as a proper result of designing. That reorganize the design category will do as a starting point that can get rid of such a misunderstanding, and do to achieve an ideological role of design for human and society. And it will be a warning to the moral slackening that is due to regarding a style as means of competitiveness and the blindness due to thinking culture as means of economy, and we may expect to offer a basic understanding about design which can prevent products from being visualized.

• Journal of Korea Spatial Information System Society
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• v.11 no.2
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• pp.170-176
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• 2009

The goal of U-Eco City testbed is im proving the technical com pletion of ubiquitous technology /services which have been developed in other core projects in U-Eco City, by implementing newly developed ubiquitous technology/services to testbed. When the newly developed ubiquitous technology/services are implemented in the testbed, we will monitor whether the developed ubiquitous technology/services can be applied in the real situation and if they have problems we will find out the solution to solve the problems. In addition to this we have goal to sale experience of construction of U-Eco city testbed to the local governments and foreign cities. To accomplish this goal, it is necessary to make the guideline for the construction of U-Eco City. Final goal of this research is develop guideline for the construction of U-Eco City. I developed the framework of U-Eco City construction guideline by i) analyzing problems when the local governments try to construct U-City, ii) finding out general idea of Eco City and investigate connection between Eco City and U-City, iii) analyzing main steps of constructing U-City, and iv) matching the all the issues and considerations into process of u-Eco city construction steps.

• Communications of Mathematical Education
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• v.31 no.3
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• pp.349-366
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• 2017

The 2015 revised curriculum is an integrated curriculum that reflects national and societal needs to foster creative convergent talent in the school curriculum. Along with these changes, the Ministry of Education introduced a system to change the major from 2017 to the fourth year of university. Therefore, each university should prepare to reflect the curriculum and institutional change before welcoming students who have completed the 2015 revised curriculum. The university needs to study the countermeasures for implementing the 2015 revised curriculum and expanding the period of major change when preparing the curriculum and contents of the calculus courses that freshmen take. Handong University has been studying the operation methods of new students who want to decide their major at the first grade, such as operating calculus courses at various levels and allocating appropriate proportions of calculus for preliminary examinations. This case is similar to the basic purpose of the revised curriculum in 2015, so it can suggest implications for the operation of the university calculus class after the curriculum revision. In this paper, we have analyzed the results of the recent freshman mathematics test for the recent 5 years and the students' calculus grades and compared them with the contents of the calculus curriculum operated by Handong University and the 2015 revised higher mathematics curriculum. As a result, we proposed five classes of calculus suitable for college major and it was found that the calculus curriculum should include the missing quadratic method in the 2015 revised curriculum.

• Journal of Gifted/Talented Education
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• v.15 no.2
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• pp.1-34
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• 2005

This study is composed of 2 parts. Study 1 empirically examined (1) the relationships among children's creative performances measured by three product-based assessments (story-telling, collage-making, and math word problems) in three domains, and (2) the relationships between children's general creative thinking skills, measured by two divergent thinking tests, and children's creative performances. Study 2 is a three-year follow up study of the study 1. Study 2 followed up some (71) children who participated in study 1. In study 2, long-term stability of the performance based assessment involving story-telling, collage making, and math problem making were examined during the three-year time period. In addition, study 2 tried to look at the methods effect of the domain issue of creativity, comparing self-report scale and performance-based assessment. The findings of this study support the position that creative ability in young children is rather (but not absolutely) domain-specific. The long-term stability of the performance-based assessments compares favorably with stability figures for other creativity tests. Results also indicate that there are some method effect in explaining the domain issue of creativity. Implication of the study in connection with educational practices for gifted children is discussed.