As more computer game integrates with video and working under mobile environments, it requires seamless bandwidth limited video transport environment including integrated game video compression and real time video conference between game users. Video transmission system consists of encoder and decoder. In communication environment, when the encoder transmits the stream data to the decoder, the bit-stream is alternated or lost because of various channel noises. Altered and lost bit-stream data cause the loss of the video data intensity value or motion vector (MV) value. These lost data cause serious damage of the video quality. In this paper, we propose MV recovery method because MV is essential information to keep the better video quality. To recover the lost MV, we use adjacent block’s MV as input data of Kalman filter to estimate the optimized value for current block’s lost MV. In our experimentation with the standard video image: Mobile&Calendar and Susie, our proposed method achieved 0.497dB ~ 1.898dB improvements on video quality over no MV recovery and achieved average 0.03dB ~ 0.725dB improvements over SRMC scheme.

Because of advent of social network, not only many applications have been introduced but also many relationships have been made newly and rapidly. That one of the biggest factors of being made many relationships is plurality of social network game. Moreover the researches of EEG based game are increasing along with cheaper EEG (electroencephalogram) devices. Through Brain biofeedback training, peoples can gain concentration degrees and postpone Alzheimer's disease which have been became an object of public concern in aging society. In this paper, we proposed SNS-based game using EEG. Using BCI we can understand the degree of user's concentration and it will be used in SNS-based game. Our EEG-based SNS game will be used to postpone Alzheimer's disease and the thanks of nature of SNS, people can be leveraged to using the game to compete to others.

온라인 게임에 대한 수요가 증가하면서 많은 사용자들은 다양한 무선 접속 기술들을 이용하여 장소에 구애받지 않고 게임 컨텐츠를 이용할 수 있게 되었다. 모바일 기반에서 온라인 게임 컨텐츠 및 시나리오를 신속하게 내려받기 위해서는 무선링크를 통한 전송속도가 충분히 확보되어야 한다. 본 논문에서는 이동/무선 환경에서 고속의 데이터 전송을 지원하는 대표적인 3세대 이동통신 표준인 WCDMA/HSDPA 시스템의 기본적인 개념과 핵심 요소들을 소개하고 온라인 게임의 향후 발전 방향을 전망한다.

In the traditional music education, functionality such as instrumental skill is very important. Some of traditional music education schemes focus on the fun, melody and rhythm. In this paper, we presents the music educational methodology that integrates music education with story-telling skill and fun of computer game. We focus on the human computer interface issues for learner's comfortableness. We review music and rhythm based game, and analyze them on the basis of user’s actual feeling, sound effect, visual effect, fun of the game. In our scheme, we present music composition and replay interface. Given a story with visual effects, learner will express his/her feelings for the story in the form of musical melody. We design the composition and replay interface using visual effects and sound effects using built-in sound fonts. It is realized that story makes learner focused more on the theme of music than instrumental skills.

We present a puzzle based metaphor MAGIC PUZZLE for creating interactive multimedia magic book for educational purposes for children, and show its application to interactive multimedia book for small children. We review previous model for educating children, and show that previous model lacks in interactivity, realism, multimedia capability, and easy interface aspects. MAGICPUZZLE uses puzzle model to draw children’s interest, and uses augmented reality to attach three dimensional graphics and multimedia to each puzzle blocks for increasing interactivity.

비사실적 렌더링 기술은 게임에서 렌더링 기법으로 가장 흔하게 사용되고 있다. 이는 게임에서 가장 중요한 특성인실시간 성능이라는 점에서 기인했다고 할 수 있다. 본 연구에서는 게임에 적용할 수 있는 비사실적 렌더링 기법에 대해 살펴보고, 현재 적용사례 및 이를 바탕으로 앞으로의 기술 발전 방향에 대해 살펴보고자 한다.

In this paper, we present a unified framework for mobile game development. To develop a new mobile game, we need three main entities: game scenario designer (i.e. producer), game graphic designer, and game programmer. Traditionally, there is no systematic support for inter-communication among the three entities. In our scheme, we support co-operative development platform, and three main developers can easily show their idea and also can easily integrate their works. For early stage of game development, we support a scenario simulation tool, where the producer can show his/her idea using the graphical clip made by graphic designer. Once the idea is setup, the graphic designer makes the graphical contents, and delivers to programmer to integrate with mobile games. However, mobile game usually requires efficient memory usage; the programmer should optimize the graphic content. In our platform, we support automatic optimization toolkit and the graphic designer does not need any optimization, and he/she can re-use the graphic content. We applied our platform to WIMAX and CDMA mobile set, and the efficiency and reusability are guaranteed by our automatic optimization.

유아들의 놀이 도구 중 하나인 스토리 북 게임은 책을 펼친 뒤, 해당 내용을 눈으로 보면서 이야기 전개에 따라 해당하는 페이지로 이동하면서 이야기를 엮어가는 게임이다. 스토리 북 게임은 유아들에게 게임과 학습의 기능을 접목시킨 것으로 사고력 증진을 위해서 많이 활용되고 있으나 시각적 효과의 한계와 청각적 효과를 제공하지 못하는 단점을 보완하기 위해서는 멀티미디어 매체와의 접목이 불가피하다. 하지만 현재의 도서와 멀티 미디어 매체의 접목은 수동적 접근으로 이루어지고 있으나 게임이 진행되는 동안 정확한 위치로 빠르게 이동하여 시각적, 청각적 효과를 제공함에는 한계를 가지고 있다. 이러한 단점을 해소하기 위해 스토리 북 게임용도서의 콘텐츠 상에 펜으로 갖다 대면 콘텐츠의 내용을 판별하고 펜에서 외부기기인 IPTV로 판별된 내용을 전달하고 TV로 콘텐츠의 내용을 출력할 수 있게끔 콘텐츠 패턴 인식 및 블루투스를 지원하는 지능형 펜 설계를 제안한다. 이는 기존의 도서에서 제공되지 않는 출판물에 대한 직접 인덱싱 기능을 부가함으로 빠른 접근으로 게임 참여자인 유아들의 집중력 향상 및 이야기 전개의 재미를 높이는 효과를 보인다.