• The Research Journal of the Costume Culture
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• v.7 no.5
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• pp.68-79
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• 1999

The purposes of the study, based on the social comparison theory, were 1) to examine the body image and the body distortion of the late adolescent through the attitudinal and perceptual measurement of the body image and to examine the self-esteem, 2) to examine the difference of the clothing behaviors depending on the level of the body image, the body distortion and the self-esteem, 3) to examine the difference in the clothing behavior, the body image and the self-esteem according to sex. The sampling method was a convenient sampling and the subjects were 137 undergraduate students in Chungnam national University. The results of this study were as follows : The results of analysing the factors to the response of attitudinal body image emerged three factors (appearance interest, weight concern, and body satisfaction). The results of analysing the response of the clothing behavior showed four factors (fashion interest, psychological dependence of clothing, conformity to clothing, and exhibitionism of clothing). The positive group to the body image showed more interest in the fashion and had the tendency of depending on the clothing psychologically, and also showed that the group revealed much exhibitive attitude by using the clothing. The group of perceiving the face rather correctly tends to do the conformity behaviors, but the group distorting the shoulder width wider than tends to reveal more conformity behaviors. The group with the higher self-esteem had little interested in the fashion and also did the conformity behaviors slightly.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.2
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• pp.279-287
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• 2001

In this paper, we discuss the scale of subjective speech quality measurement over VoIP(Voice over IP) network which is a component of broadband networks. Objective parameters of multimedia services like PSNR or jitter can easily measured and defined, but these factors are not easily meet the user's perceptual recognition. We suggest the speech quality measurement scale through the subjective measurement for end-to-end speech quality composed of sender-side quality, transmission quality, receiver-side quality, which provide the degree of correctness of representation of speaker, the degree of impairment caused by various factors, the degree of recognition of processed speech, respectively. Also, we examined the proposed method and verify it's availability.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.763-764
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• 2017

The use of barcodes in mobile phones has become generalized, and barcodes are widely used in security-sensitive applications, including mobile payment and personal identification. Generally, images photographed by a mobile phone generate geometric distortion due to the shooting angle, resulting in low quality images. Embedding watermark for low quality images makes it difficult to satisfy transparency. To solve such problem, this paper focuses on the technique of embedding barcode images in the image taken by mobile phone and proposes barcode watermarking for protecting mobile-based ownership. The barcode watermark embedded in the image can be used to prove ownership since it is readable by a machine such as illegal copy.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.336-337
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• 2013

전 세계적으로 3D영화 및 디스플레이 기기에 대한 일반인들의 관심이 증가하고 있다. 하지만 편안한 시청영역(Comfort Zone)에서도 3D를 인식하지 못하는 사람들도 적지 않지 않다. 이런 사람들은 "자신의 눈"에 이상이 있는 것도 모른 채 3D 콘텐츠를 멀리하게 되지만, 안과적 조치를 통해 3D영상 시청 시 어지럼증 유발을 상당부분 제거할 수 있다. 기존의 입체시 검사 도구는 왜곡 및 실감정도를 파악할 수가 없다. 이를 세밀하게 측정할 수 있는 3D 콘텐츠 깊이 측정기를 제작하고, 이에 적합한 콘텐츠를 제작하였다. 3D 콘텐츠 깊이 측정기는 기능을 제어하는 콘트롤 부와 콘텐츠를 보여주는 컨벌젼스 룸으로 구성되어 있으며, 장비를 통해 3D 오브젝트의 깊이나 돌출거리와 같은 여러 파라메타들을 측정할 수 있다. 콘텐츠 제작에 대해선, 오브젝트의 위치는 여섯 부분으로 분류하고, 양안시차(disparity)는 $+2^{\circ}{\sim}-3^{\circ}$ 범위에 $1^{\circ}$ 간격으로 6레벨로 구성하였다. 하나의 오브젝트에 대해 서른여섯개의 오브젝트를 제작하였고, 이들의 조합을 통해 다양한 콘텐츠를 구성하도록 했다. 이를 바탕으로, 안간거리 6.5cm를 대상으로 돌출거리를 측정하였다.

• Journal of the Korean Geophysical Society
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• v.6 no.1
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• pp.1-11
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• 2003

There are numerous adjustment techniques that deal with the adjustment of geodetic networks but the least squares adjustment is the most common one. During the network adjustment procedure two techniques can be used, the free network adjustment technique and the constrained network adjustment technique. In order to determine the optimum technique for adjusting the geodetic networks, which used for the geodynamical purposes, data from two different geodetic networks "Sinai geodetic network, Egypt, and HGN network, South Korea" had been examined. The used networks had a different configuration and located in different areas with different seismic activity. The results show that both techniques have a high accuracy and no remarkable differences in terms of RMS. On the contrary, the resulted coordinates shows that the constrained network adjustment technique not only cause a remarkable distortion in the station final coordinates but also if the fixed points that define the datum parameters are changed different solutions for the coordinates will be determined. This distortion affect not only in the determination of point displacement but also in the estimation of the deformation parameters, which play a significant role in the geodynamical interpretation of results. Comparing the results which obtained from both techniques with the widely known geodynamical models of the area reviles that the free network adjustment technique results are clearly match with these models, while those obtained from the constrained technique didn’t match at all. By considering the results it seams to be that the free network adjustment technique is the optimum technique, which can be used for the geodetic network adjustment.

• Korean Journal of Culture and Social Issue
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• v.15 no.4
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• pp.507-528
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• 2009

Coping and defense are similar psychological mechanisms to reduce stress response, but they are regarded as distinct from each other. Defense involved distortions of reality, but coping was used for strategies associated with accepting the true nature of the situation. The purpose of the present study was to investigate the coping and defense features of the North Korean Defectors in the Rorschach test. The subjects were then categorized into four groups based on their birth place and gender: Male North Korean defectors( N=16), female North Korean defectors(N=28), male South Koreans(N=17), and female South Koreans(N=25). All subjects were individually administered the Rorschach test, and protocols were scored according to the Exner(2003)'s Rorschach Comprehensive systems. Coping or defense-related Rorschach variables were selected for analysis: EA, CDI, Adj D, EB style, Lamda, Zd, X-%, Xu%, W:Dd:D, P, reaction time, and other behavior characteristics during the testing. Compared with other groups, female North Korean defectors were more likely to show poor coping resources(low EA), adjustment difficulties(Adj D), and distortions of reality(high X-%). They also demonstrated more 'don't know' responses and more delayed responses than other groups. These findings suggest that poor coping resources make female North Korean defectors more vulnerable to stress, and psychological intervention such as social skills training may help them settle successfully in south Korea. Limitations of the current study and implications for future research were discussed.

• Archives of design research
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• v.19 no.5 s.67
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• pp.313-322
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• 2006

Among many modelling factors which consist of a screen, a form brings a child's psychological response, according to its being drawn and expressed shape, and would be defined as a visual descriptive method which transmits the relation between the subject and background by a story content and the circumstance and emotion of characters in the story. In this study, to analyze how an expressed form on a screen works to a child visually and psychologically, I, first have examined how differently a child's perception development and its experience to the form is come out by the age of a child, and have found that it influences on a child's originality and creativity development, visual and psychological thinking development, and the stimulation on dream and imagination. And I have examined each characteristic by discriminating the expressive style of the form into a reproductive, a simplified, an exaggerated and a distorted form expression, and by utilizing it as substantiative data through the 1st and 2nd stage, have analyzed responses and preferences according to a style of a child's expression form. In conclusion, I have considered that the analysis result through the substantiative study would be a help not only to the form expression which is based on an illustrator's personality and creativity, and also would be utilized in the effective expression method study and experiment of students who learns the illustration.

• Journal of the Earthquake Engineering Society of Korea
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• v.13 no.1
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• pp.27-34
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• 2009

Site amplification should be considered in order to estimate Soil-Structure Interaction (SSI), seismic source and attenuation parameters with a greater degree of reliability. The horizontal to vertical (H/V) ratio technique, originally proposed by Nakamura (1989), has been applied to analyze the surface waves in microtremor records. Recently, its application has been extended to the shear wave energy of strong motion in order to study the site transfer function. The purpose of this paper is to estimate the H/V spectral ratio using the observed data from 9 seismic stations distributed within the Southern Korean Peninsula, from the Odesan earthquake (2007/01/20). The results show that most of the stations have more stable amplification characteristics in a low frequency band than in a high frequency band. However, each seismic station showed its own characteristic resonant frequency and low and high frequency. The resonant frequency at each station should be estimated carefully, because the quality of seismic data is dependent on the resonant frequency. It can be obtained more reliable results of seismic source and attenuation parameters, if seismic ground motions which deconvolved from site transfer function is used. The site amplification data from this study can be used to generally classify the sites within the Southern Korean Peninsula.

• The KIPS Transactions:PartB
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• v.18B no.6
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• pp.355-364
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• 2011

In most applications requiring high-confidential images, reversible watermarking is an effective way to ensure the integrity of images. Many watermarking researches which have been adapted to authenticate contents cannot recover the original image after authentication. However, reversible watermarking inserts the watermark signal into digital contents in such a way that the original contents can be restored without any quality loss while preserving visual quality. To detect malicious tampering, this paper presents a new block-based image authentication algorithm using differential histogram-based reversible watermarking. To generate an authentication code, the DCT-based authentication feature from each image block is extracted and combined with user-specific code. Then, the authentication code is embedded into image itself with reversible watermarking. The image can be authenticated by comparing the extracted code and the newly generated code and restored into the original image. Through experiments using multiple images, we prove that the presented algorithm has achieved over 97% authentication rate with high visual quality and complete reversibility.

• Korean Business Review
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• v.23 no.2
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• pp.1-29
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• 2010

Traditional human resource management explains human characteristics with motivation, attitude, perception, value, etc., based upon behavioral science approach. And system approach is adopted in analyzing the interaction between people and the environment. However, personnel economics excludes social and psychological variables in the human choice models, and assumes very unrealistic and simple rational decision making process. For environmental variables, personnel economists considers only income and price. Traditional human resource management research model successfully explains the phenomenon for each specific situation, but lacks universality. On the other hand, personnel economics model is strict and analytical, but tends to distort the understanding of the results because of the unrealistic assumptions. These two academic fields may get benefits by introducing the other's research methodologies, theories, and ideas.