• Journal of Korea Multimedia Society
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• v.18 no.12
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• pp.1562-1568
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• 2015

The 3D contents are getting more attentions in various areas, such as in movies, advertising, games and exhibition contents. There are many authoring tools for making 3D Models and contents. However, those authoring tools take considerable amount of time to learn and to make 3D contents. In this paper, we propose the 3D model conversion algorithm to make 3D models from 2D pictures drawn on the touch screens or papers. The vertex animation method also proposed for the interactive 3D aquarium. The proposed vertex animation algorithm was tested for virtual 3D water creatures and compared with human-made animation. An Interactive 3D aquarium was implemented by using those proposed algorithms. Thus the simplicity and effectiveness of the algorithms can be applied to diverse industries.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2006.11a
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• pp.289-295
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• 2006

The Musical Slide Show MAF, which currently being standardized by MPEG, conveys the concept of combining several established standard technologies in a single file format. It defines the format of packing up MP3 audio data, along with MPEG-7 Simple Metadata Profile and MPEG-21 Digital Item Declaration metadata; with JPEC images and optional text, and synchronizes them all together to create a slideshow of JPEC image data associated to MP3 audio data during the audio playback. The implementation of Musical Slide Show MAF can be a music karaoke file where users can sing along while listening to the music, view the JPEG slideshow and reading the lyrics; or a story-telling file where users can listen to the narrated story by looking at the related illustration slideshow of the story In this paper we present the tool to producing the Musical Slide Show MAF contents. Regardless the knowledge of user on the MAF file format, the authoring tool simplify the manner of packaging several multimedia contents into single file.

• Journal of KIISE:Computing Practices and Letters
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• v.6 no.1
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• pp.36-44
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• 2000

In this paper, we describe the developing of a tool which supports both multimedia presentation with user's participation through a high speed network and authoring of various media using a single authoring tool. To support real-time synchronous multimedia presentation, we adopt dynamic synchronization method and adaptive transmission algorithm for synchronizing data transfer rate between sender and receiver using buffer management algorithm based on QoS parameters. And we also allow user's participation in the presentation using TRSG(Temporal Relationship Specification Graph) model. Finally, the proposed tool supports the minimal level of QoS and its continuous play-out using event auditing threads which control the current state of a multimedia presentation continuously by monitoring of negative factors effecting on QoS, and synchronization.

• Proceedings of the KIEE Conference
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• 2006.04a
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• pp.78-80
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• 2006

Mouse is widely used in multimedia education. However, using mouse is not easy for user to get exact three dimentional (3D) user input and to manipulate delicately as the user can not know the surface information of virtual objects, which are typical drawbacks of using mouse in multimedia education, especially in 3D multimedia contents authoring. In this paper, haptic device is introduced to the 3D multimedia education. The haptic device provides 3D user's input information as well as haptic information of virtual objects such as surface textures, collisions and etc. which thus allow to enhance the task efficiency in multimedia education. Simple experiment results are presented to show the positive results of using the haptic device in multimedia education.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.631-635
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• 2001

The Synchronized Multimedia Integration Language (SMIL) is a declarative markup language based on the eXtensible Markup Language (XML) to define a set of markup tags for synchronizing the timing and positioning relationships between multimedia objects. SMIL makes authoring of TV-like multimedia presentations on the Web easier for applications such as electronic commerce. We present the design and implementation of a JAVA-based SMIL player, which processes different types of media objects using multiple threads. Moreover, its cache engine detects the media type and allocates the proper cache memory for the corresponding media object.

• Journal of the Korean Operations Research and Management Science Society
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• v.19 no.1
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• pp.99-112
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• 1994

An important modelling requirement for multimedia systems is the representation of temporal constraints among several different media that ordinarily arise in multimedia application. The multimedia system which integrates various types of data is required to express voice, image, text and graphic data with simultaneousness or an arbitrary time intervals. The purpose of this study is to analyze the temporal reationships and synchronization among several different kinds of medium. Moreover, it proposes a Multimedia Display-Time Composition Model (MDTC Model) which guarantees a representation of any kind of temporal synchronization among more than two kinds of medium. The proposed model is applied to a company advertizing system. Finally, a multimedia authoring tool based on the MDTC Model is implemented.

• The Transactions of the Korea Information Processing Society
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• v.4 no.11
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• pp.2679-2689
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• 1997

In this paper, a multimedia authoring system using temporal/spatial synchronization manager is designed and implemented to support easy and efficient generation of multimedia title. For this goal, a flowchart-oriented logic generator which represents a title author's design intent into a practical title composition logic without extra translation process, and a logic interpreter which translate and implement the generated title logic, are designed. Furthermore, a temporal/spatial synchronization manager which manages temporal/spatial synchronization information between media data for multimedia representation, is designed. Especially, a temporal specification model and MRL, a formal language for the model, are designed to synchronize the temporal relation between media objects. The MRL represents a complex temporal relation by simple and clear form, and synchronizes efficiently multimedia representation according to the author's intent. A presentation frame editor which makes coincidence between visible size of representation media and attachment point, is implemented for spatial synchronization.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.04a
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• pp.441-444
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• 2000

Web의 등장은 텍스트위주의 단순한 미디어의 정보를 이미지, 오디오 , 비디오등의 멀티미디어 데이터로 변화시켰다. 여기에 한걸음 더 나아가 여러 종류의 미디어를 통합하여 표현하기 위한 요구가 확산되어 1998년에는 SMIL 이라는 멀티미디어 데이터를 통합하여 표현하기 위한 동기화 언어가 표준으로 채택되었다. 본 논문에서는 SMIL을 사용한 멀티미디어 동기화 문서를 기술함에 있어서 발생할 수 있는 다양한 오류에 대한 분류를 보여주며, 이러한 오류들을 검사하고, 제거할수 있는 SMIL 저작도구의 검증 스킴 개발에 대해서 기술하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.04a
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• pp.409-413
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• 2000

본 논문은 가상현실의 한 분야인 VRML 저작도구의 설계와 구현에 고나하여 기술하였다. 가장 효과적인 장면생성과 Graphic Library (OpengL)와 VRML Noderks의 매칭 구현을 통하여 Objects 의 Rendering 수준을 한 차원 높이고, COM 기반의 Parser 사용으로 저작도구 구현에 효율성과 재사용성을 극대화하며, 3차원 모델링을 모다 손쉽게 저작할수 있는 저작도구를 구현하였다. 3차원 모델링 기술의 기반 구조가 취약한 국내에서 이 분야 기술력의 축적과 함께 3차원 모델링 기술을 이용한 응용 제품 개발의 저변확대와 다양한 유형의 쇼핑몰 구현 기반 기술 확보등의 효과를 거둘 수 있다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.11a
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• pp.531-535
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• 2001

인터넷에서 가상현실 기법의 도입은 인터넷의 범용성과 함께 사용자가 쉽게 접할 수 있고 다양한 정보를 획득할 수 있기 때문에 지속적으로 발전해 가고 있다. VRML은 이러한 인터넷에서 가상세계를 구현하는 표준언어로 자리잡고 있다. 본 연구에서는 현재 많이 활용되고있는 VRML 저작툴인 ISA(Internet Scene Assembler)와 ISB(Internet Scene Builder)를 이용해 가상신호등 시스템을 설계하고 구현하는 것이 목적이다. 가상 신호등 시스템의 시뮬레이션을 위해 애니메이션 기법과 Sensor Node 및 Time_Bool_Converter 등의 Logic 함수를 사용하게 되고, Routing Diagram의 연결을 통해 시뮬레이션을 제작하게 된다.