• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.565-570
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• 2008

사용자들이 직접 콘텐츠의 제작 및 공유에 참여하는 패러다임의 변화로써 사용자 제작 콘텐츠(UCC)가 중요한 이슈가 되고 있다. 본 연구에서는 이러한 UCC의 제작과 공유 과정에 영향을 미치는 동기와 보상 요인을 살펴보고, 이를 바탕으로 보다 창의적인 콘텐츠를 제작, 공유하기 위한 UCC 서비스의 보상 체계를 구축하려고 시도하였다. 이를 위해, 보상과 동기에 관련한 광범위한 문헌 조사를 실시하였으며, 이를 기반으로 UCC 에서의 보상 체계에 대한 연구 모형을 수립하고 설문조사 방법론을 통해 이를 검증하였다. 총 133 명의 블로그 사용자들이 연구에 참여하였으며, 수집된 데이터는 구조방정식을 이용하여 분석되었다. 연구 결과 개별 보상 요인들은 사용자들의 UCC 제작과 관련한 내, 외재적 동기에 영향을 미치는 것으로 나타났으며 그러한 동기 요인들에 따라서 UCC의 창의성 수준이 달라질 수 있음을 확인할 수 있었다. 본 연구는 기존에 경영학 분야에서 주로 연구되어 온 보상의 개념을 보다 확장하여 UCC 라는 새로운 서비스에 적용하였다는 데에 그 이론적인 의의를 찾을 수 있으며, 또한 연구 결과를 바탕으로 UCC 서비스에서의 새로운 보상 체계에 대한 가이드라인을 제시하였다는 점에서 연구의 실용적 의의를 찾을 수 있다고 판단된다.

• Journal of the Korea Society of Computer and Information
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• v.13 no.1
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• pp.21-27
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• 2008

The man who wants to create advance user created contents Is in need of using chroma-key method in a certain environment. Recently. pavilion that is painted with mono-color is used for the application of chroma-key. This paper aims to introduce a robust automatic adaptive chroma-key method without using pavilion. In this research. a new chroma-key method is applied to the separation of high frequency and low frequency using Wavelet is done in order that the noise can be eliminated. As a result, a chroma-key method with good capacity is shown from the research.

• Journal of Korea Multimedia Society
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• v.12 no.6
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• pp.833-841
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• 2009

In this paper we propose a flexible video authentication scheme based on aggregate signature, which provides authenticity of a digital video by means of cryptographic signature to guarantee right of users. In contrast to previous works, the proposed scheme provides flexible usages on content distribution system, and it allows addition of new contents to the signed contents and deletion of some parts of the signed contents. A modification can be done by content owner or others. Although contents are modified by one or more users, our scheme can guarantee each user's right by aggregation of the each user's signatures. Moreover, proposed scheme has half size of Digital Signature Algorithm (DSA) with comparable security.

• Digital Contents
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• no.5 s.156
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• pp.38-43
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• 2006

인터넷이 UCC(User Created Content : 사용자 제작 콘텐츠)로 넘쳐나고 있다. 네티즌의 성향변화, 다양한 미디어의 출현, 그리고 이들을 만족시키는 기술의 발전이 결합되어 단순한 정보 수용자의 위치에 머물렀던 네티즌들을 이제는 정보 생산자로 변모시키고 있다. 여기에 포털 업체들이 관련 서비스를 경쟁적으로 출시, 올해 UCC서비스가 본격화될 것으로 전망된다.

• Journal of KIISE:Software and Applications
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• v.35 no.12
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• pp.753-763
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• 2008

The amount of UCCs (User Created Contents) has been increasing rapidly and is associated with a serious copyright problem. Automatic logo detection in videos is an efficient means of overcoming the copyright problem. However, logos have varying characteristics, which make logo detection and recognition very difficult. Especially, there are frequent logo transitions in a video, comprising several video contents. This disrupts accurate video segmentation based on logos. Therefore, this paper proposes an accurate logo transition detection method for recognizing logos in digital video contents. The proposed method accurately segments a video according to logo and efficiently recognizes various types of logos. The experimental results demonstrate the effectiveness of the proposed method for logo detection and video segmentation according to logo.

• The Journal of Korean Association of Computer Education
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• v.14 no.4
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• pp.21-31
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• 2011

User-created content(UCC) is on the rapid increase both in terms of quantity and the quality of sharing and enjoying each others. However, not much research has been done on school's adoption of this innovative contents for educational purposes. The aim of this case study is to identify the determinants of students' attitude toward using UCC in elementary school classes. This study employs the perceived educational value, ease of use, social influence, fun, computer self-efficacy, cooperativity and concentration as the antecedents of attitude, and collected 246 survey responses from 5th and 6th grade students. The results indicate that the perceived educational value, ease of use and socal influence have significant impact on the attitude toward using UCC. It was also found that the cooperativity, fun and ease of use determine the level of perceived educational value, and that the computer self-efficacy, fun and concentration influence the perceived ease of use. Some useful suggestions, concerning the utilizing UCC for educational purpose in elementary school classes, are also presented.

• Korean journal of communication and information
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• v.40
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• pp.45-79
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• 2007

This study explored three questions: (1) what are the motives of producing and using user-created contents (UCC, video clips which are produced and uploaded at various web sites by individuals), (2) what are the gratifications that users obtain from UCC, and (3) what are the differences of gratifications according to individual uses of UCC. A survey was conducted to 258 UCC users and data were factor-analyzed to find the dimensions of motives and gratifications. As for the motives of UCC uses, six factors were constructed: self-expression, private life, participation, information retrieval, rest, and entertainment, among which self-expression showed the largest variation. As for the gratifications, five factors were constructed: self-expression, rest, information retrieval, socializing, and entertainment.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.5
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• pp.98-109
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• 2007

The era of Web 2.0, which is the web environment that offers end user oriented web platform, has arrived. Moreover, as the interest in UCC (User Created Contents) environment increases, it is a fact that the involvement of the users in multimedia contents is increasing rapidly. When the aim of Web 2.0, i.e. active involvement of the user, is considered, the necessity and the understanding about accessibility problem of the people who have difficulties about accessing web information, such as elderly and visually handicapped people, is increasing as well. This research analyzes the problems of virtually handicapped users to access web-based UCC services, and proposes an efficient implementation plan for a web-based UCC service that enables smooth access for them. Especially, the validity of the proposed method was verified by comparing the reaction time of the visually handicapped users with that when using the existing UCC services, through the implementation of the test page according to the plan proposed in this research.

• Journal of Digital Contents Society
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• v.12 no.3
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• pp.309-318
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• 2011

The web trend has been flowed from portal site to user created contents site, recently. Therefore, many companies have suggested web program of producing contents for user's convenience. However, web applications that are operated in various web browsers and heterogeneous devices have many problems regarding distribution and management so far. Because of diverse one-source data formats. In this paper, we present an integrative displaying and distributing tool (IDD-Tool) for editing, distributing and managing multimedia contents and environment so that users can work. It is inspected that the tool is widely used in the fields of education, publication, corporations and etc. because a user can participates in contents producing easily in personal customized workplace with IDD-Tool and contents made by IDD-Tool are distributed.

• The Journal of Information Systems
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• v.21 no.3
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• pp.1-22
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• 2012

This study aims to investigate the effects of UCC parody content trait on user attitude and e-word of mouth. The conventional methods had two identified factors: UCC content factors - trust, usefulness, and information, and parody content factors - humor, satire, and mockery. It also analyzes the impacts gap in UCC attitude between a high-involvement user and a low-involvement user in UCC contents. In this study, our findings are broadly summarized as follows: first, both trust and information, of UCC content factors, showed a positive impact on UCC attitude; second, both humor and satire, of parody content factors, showed a positive impact on UCC attitude; third, UCC attitude showed a positive impact on e-word of mouth, and both humor and satire were highly correlated to UCC attitude in UCC involvement user groups. In conclusion, this study is expected to give useful suggestions on selecting variables for further studies on UCC parody contents.