In this paper, we propose a method for replaying game streaming video using informations of input-key and object states. Up to the present, the played game contents have been just recorded and replayed for game streaming video recording function provided by the game company, this required a large volume of storage device. By the proposed method, it is more efficient for sharing the game informations between the users and game companies, and between the users and other users because it need much less storage device than the present method. And also the game user can handle the additional game informations.

In this paper, we present a technique for applying artistic effects to videos based on a pencil rendering technique. First of all, we propose a vectorized line generation method as a primary technique for solving temporal coherence problem which appears when applying some artistic effects to video. In addition, we propose progressive pencil rendering technique which controls detailed range of drawings from rough sketch to detailed drawing for video. Also, regarding that a real color pencil has a limited set of colors, we suggest limited color pencil rendering method. Furthermore we analyze hand drawing pencil drawings, compare them with rendering results and complement some weakness. A series of our works has a meaning of not only technological but also aesthetical consideration for pencil drawings.

The UCC (User Created Contents) culture has evolved through the game. Video sites Photo specialized UCC the UCC, real-time broadcasting, such as flash-based discusses a range of the UCC. This phenomenon is not an exception in the game too. Games, especially the 'Mercy nima (Machinima)' the words evolved as a form of one of our shows in the UCC. Games like this are a lot of video UCC and the service model, but efficient video content for the service based on the server side of the codec is not much research on automation technology. In this paper in order to improve the server-side based on the automatic translation system, has developed a codec, video game technology in the future will have to contribute to the development of the UCC.

스무딩(Smoothing)은 가변 비트율로 저장된 비디오 데이터를 고정 비트율로 변환하는 전송 계획이다. 이러한 스무딩 알고리즘들에는 CBA, MCBA, MVBA 알고리즘 등이 있다. 그러나 이 알고리즘들에서는 서버에서 제공할 수 있는 여분의 대역폭의 크기를 고려하지 않아서 서버에서 비디오 데이터를 보다 많은 클라이언트들에게 제공하는 것을 어렵게 할 수 있다. 본 논문에서는 제한된 네트워크 대역폭을 갖는 동영상 서버에서 보다 많은 클라이언트들에게 비디오 데이터를 제공할 수 있게 하기 위하여 전송률 감소량(증가량)이 최대(최소)로 하는 스무딩 알고리즘을 제안한다. 제안 알고리즘의 성능을 평가하기 위하여 여러 가지 평가 요소를 사용하였으며, 제안 알고리즘은 기존의 다른 알고리즘들과 비교하여 최대 클라이언트 서비스 개수, 평균 클라이언트 서비스 개수 등과 같은 평가 요소에서 우수함을 보였다.