• Journal of the Korea Society of Computer and Information
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• v.16 no.9
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• pp.97-105
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• 2011

This paper proposes a new "Live Book Service" that is combined the analog contents such as paper books and digital contents with various digital multimedia elements, and this service can project the additional digital multimedia contents on the analog paper. Also, we developed a monolithic stand type system which is composed of camera and pico projector, so that it can demonstrate the proposed contents. We also devised the low computational cost algorithm in bare-hands recognition which can be used as the interface between the system and users. In addition, to recognize the bare-hands which can be used as the interface between the digital and users, we make the low cost algorithm. Therefore this can be the interaction between the system and users. As a result, our proposed system can be used as a useful tool for various e-book or u-learning fields that requires high efficiency and much immersion.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.1021-1022
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• 2014

최근 인터넷과 스마트 폰 사용시간이 증가함에 따라 편리한 시스템들이 많이 보여 지고 있다. 그중에서 전자책(e-book)은 잘 만들어져 있지만 각 기업마다 DRM(Digital Rights Management) 인증이 걸린 뷰어를 설치해야지 볼 수 있기 때문에 여간 불편한 것이 아니다. 그래서 각기 다른 회사의 e-book이더라도 이용자들의 편리성을 위하여 통합뷰어를 만드는 것에 의의를 두고 있다. 본 논문에서는 다양한 멀티미디어 콘텐츠에 적합한 적합한 통합 뷰터 시스템을 설계하고 구현하였으며, 이 과정에서 다양한 DRM의 인증을 해결할 수 있는 방안을 제시하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.295-298
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• 2001

전자책(eBook)은 디지털 매체를 이용해 책의 내용을 저장 및 가공한 출판물을 의미하며 저장의 용이성과 휴대가능성 및 검색 등의 장점을 가지고 있다. 이러한 장점을 가진 전자책은 아직 전용 소프트웨어가 미비한 상태이며 먼저 전자책을 저작하는 전용 편집기의 개발로 먼저 전자책의 저작이 이루어져야 한다. 본 논문은 장르별 구조를 제공하는 폼 기반(Form-based)의 전자책 편집기를 제안하며 특히 전자책의 특성상 사용자가 기본적으로 제공되는 폼에 더하여 구조를 동적으로 추가할 수 있는 유연성 있는 폼을 지원하는 시스템을 구현하였다. 본 편집기는 국내 전자책의 표준 포맷인 XML(extensible Markup Language)을 기반으로 하였다. 따라서 본 시스템에서 제공되는 폼으로서 사용자는 XML 구조의 숙지 없는 쉬운 인터페이스와 사용자의 의도에 따른 구조 제공으로 장르별 전자책을 작성하기에 용이하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.27-29
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• 2015

최근 IT기술의 발달로 인하여 다양한 분야에서 IT기술을 활용한 융합기술의 시도가 많아지고 있다. 특히 인터넷의 발달과 전자책(e-Book) 시장규모가 커짐에 따라 도서에 대한 정보가 많아지고 있으며, 이러한 정보를 분석하여 활용하는 서비스 시스템에 대한 관심이 높아지고 있다. 하지만 현재 서비스되고 있는 대부분의 온라인 서점에서는 도서의 기본 서지정보와 같이 도서 본문 내용과는 무관한 출판사나 서점에서 도서를 관리하기 위한 정보만을 제공하고 있으며, 도서에 대한 다양한 정보를 활용한 키워드 추출 및 장르 분류를 통한 검색의 효율성 제공이 미흡한 현실이다. 본 논문에서는 도서의 본문 텍스트 정보를 마이닝 처리하여 도서 페이지의 흐름에 따라 포함되어있는 장르를 분류하고 이에 대한 결과를 사용자에게 친화적인 시각화 기법으로 제공되는 시스템을 설계하고 구축하였다. 제안한 서비스 시스템은 의미 분석을 기반으로 도서 정보의 구체적, 실제적, 직관적 정보를 제공하여 도서 추천 서비스에 활용될 것이다.

• The Journal of the Korea Contents Association
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• v.9 no.6
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• pp.117-125
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• 2009

In this paper, we propose user-centric immersible and interactive electronic book based on the interface of tabletop display. Electronic book is usually used for users that want to read the text book with multimedia contents like video, audio, animation and etc. It is based on tabletop display platform then the conventional input device like keyboard and mouse is not essentially needed. Users can interact with the contents based on the gestures defined for the interface of tabletop display using hand finger touches then it gives superior and effective interface for users to use the electronic book interestingly. This interface supports multiple users then it gives more diverse effects on the conventional electronic contents just made for one user. In this paper our method gives new way for the conventional electronics book and it can define the user-centric gestures and help users to interact with the book easily. We expect our method can be utilized for many edutainment contents.

• Journal of Korean Academy of Nursing
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• v.40 no.2
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• pp.182-190
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• 2010

Purpose: This study was done to identify self-directed learning readiness, achievement goal orientations, learning satisfaction and learning achievement, and to evaluate the factors affecting learning achievement for nursing students using a web-based Health Assessment e-Book. Methods: The research design was a cross-sectional study with a structured questionnaire and data were collected before using the web-based Health Assessment e-Book and 1 week after finishing. The participants were 80 nursing students who were taking the Health Assessment class from March to June 2009. Results: Mean score for subjective learning achievement was 31.26 and for objective learning achievement, 69.25. Subjective and objective learning achievement were positively correlated with self-directed learning readiness, mastery goal, attitude toward distance education, and learning satisfaction. In subjective learning achievement, learning satisfaction and mastery goal were significant predictive factors and explained 64% of the variance. Objective learning achievement was significantly predicted by learning satisfaction and self-directed learning readiness, which explained 24% of the variance. Conclusion: Learning satisfaction, mastery goal and self-directed learning readiness were found to be very important factors associated with learning achievement for nursing students using a web-based Health Assessment e-Book. To provide high quality and effective web-based courses and to improve nursing students' learning achievement and learning satisfaction, educators should consider the learner's characteristics from the initial stages of lecture planning.

• Journal of Korea Multimedia Society
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• v.6 no.4
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• pp.565-575
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• 2003

This paper proposed context based annotation model and annotation ambiguity correction methods. The proposed model provides various annotation types, semantic models, and pen-based free drawing interface. Annotation correction method that is specifically based on the context which includes various textual and structure information between free-form marking and annotation. Also, interface for XML environment using the proposed model and correction methods is proposed and possibilities of application is looked at. The results from the implementation of the proposed method show that the annotated areas included in the free-form marking information are more accurate, achieving more accurate exchange results amongst multiple users in a heterogeneous document environment

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.403-405
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• 2012

본 연구에서는 독서장애인을 위한 전자책용 어노테이션의 탐색 및 재생 기법을 제안하고 이를 음성 어노테이션 브라우징 시스템이라 칭하였다. 제안된 음성어노테이션 브라우징 시스템은 명령 입력, 중요도 분석 및 추천, 검색, 출력단계로 구성된다. 특히 본 연구에서는 대상 사용자가 청각 의존도가 높은 독서장애인들이기 때문에 완전히 청각에 의존해서 사용할 수 있도록 모든 단계에서 음성인식 기능을 제공한다. 제안된 음성 어노테이션 브라우징 시스템의 효율성을 검증하기 위해 안드로이드 환경에서 실행되는 전자책 소프트웨어와 음성 어노테이션 브라우징 시스템을 설계하고 구현하였다.

• Journal of Korea Multimedia Society
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• v.16 no.4
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• pp.510-519
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• 2013

In this paper, we propose a voice-annotation browsing system that make the reading-disabled people to be able to find and play the existing voice-annotations. The proposed system consists of 4 steps: input, ranking & recommendation, search, and output. For the reading-disabled people depending only on the auditory sense, all steps can accept voice commands. To evaluate the effectiveness of our system, we design and implement an android-based mobile e-book application supporting the voice-annotation browsing ability. The implemented system is tested by a number of blind-folded users. As a result, we can see almost all the reading-disabled people can successfully and easily reach the existing voice-annotations they want to find.

• Journal of Korea Multimedia Society
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• v.15 no.10
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• pp.1196-1204
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• 2012

In this paper, a series of algorithms are proposed for controlling different kinds of multimedia contents and realizing interact between human and computer by using single input device. Human gesture recognition based on NUI is presented firstly in my paper. Since the image information we get it from camera is not sensitive for further processing, we transform it to YCbCr color space, and then morphological processing algorithm is used to delete unuseful noise. Boundary Energy and depth information is extracted for hand detection. After we receive the image of hand detection, PCA algorithm is used to recognize hand posture, difference image and moment method are used to detect hand centroid and extract trajectory of hand movement. 8 direction codes are defined for quantifying gesture trajectory, so the symbol value will be affirmed. Furthermore, HMM algorithm is used for hand gesture recognition based on the symbol value. According to series of methods we presented, we can control multimedia contents by using human gesture recognition. Through large numbers of experiments, the algorithms we presented have satisfying performance, hand detection rate is up to 94.25%, gesture recognition rate exceed 92.6%, hand posture recognition rate can achieve 85.86%, and face detection rate is up to 89.58%. According to these experiment results, we can control many kinds of multimedia contents on computer effectively, such as video player, MP3, e-book and so on.